Update the CI/CD configuration to build the image.

Map.put_new don't update nil value, because the key exists.

.dockerignore

@@ -0,0 +1,50 @@
+# Emacs
+*~
+.\#*
+\#*\#
+
+# This file excludes paths from the Docker build context.
+#
+# By default, Docker's build context includes all files (and folders) in the
+# current directory. Even if a file isn't copied into the container it is still sent to
+# the Docker daemon.
+#
+# There are multiple reasons to exclude files from the build context:
+#
+# 1. Prevent nested folders from being copied into the container (ex: exclude
+#    /assets/node_modules when copying /assets)
+# 2. Reduce the size of the build context and improve build time (ex. /build, /deps, /doc)
+# 3. Avoid sending files containing sensitive information
+#
+# More information on using .dockerignore is available here:
+# https://docs.docker.com/engine/reference/builder/#dockerignore-file
+
+.dockerignore
+
+# Ignore git, but keep git HEAD and refs to access current commit hash if needed:
+#
+# $ cat .git/HEAD | awk '{print ".git/"$2}' | xargs cat
+# d0b8727759e1e0e7aa3d41707d12376e373d5ecc
+.git
+!.git/HEAD
+!.git/refs
+
+# Common development/test artifacts
+/cover/
+/doc/
+/test/
+/tmp/
+.elixir_ls
+
+# Mix artifacts
+/_build/
+/deps/
+*.ez
+
+# Generated on crash by the VM
+erl_crash.dump
+
+# Static artifacts - These should be fetched and built inside the Docker image
+/assets/node_modules/
+/priv/static/assets/
+/priv/static/cache_manifest.json

.drone.yml

@@ -24,6 +24,20 @@ steps:
     commands:
       - mix test
 
+  - name: build the image
+    image: plugins/kaniko
+    settings:
+      username: kklochko
+      password:
+        from_secret: REGISTRY_PASSWORD
+      repo: git.kklochko.space/kklochko/decentralised_book_index
+      registry: git.kklochko.space
+      tags:
+        - latest
+        - ${DRONE_TAG}
+    when:
+      event: tag
+
 volumes:
 - name: mix
   temp: {}
@@ -34,4 +48,4 @@ services:
     environment:
       POSTGRES_DB: decentralised_book_index_dev
       POSTGRES_USER: postgres
-      POSTGRES_PASSWORD: postgres
+      POSTGRES_PASSWORD: postgres

.env.example

@@ -0,0 +1,16 @@
+DATABASE_URL=ecto://postgres:postgres@db/decentralised_book_index_prod
+SECRET_KEY_BASE=<secret>
+TOKEN_SIGNING_SECRET=<secret>
+PHX_HOST=example.com
+#PHX_HOST=127.0.0.1
+#PORT=4000
+
+#SYSTEM_EMAIL=noreply@example.com
+
+#SMTP_EMAIL_RELAY=mail.example.com
+#SMTP_EMAIL_USERNAME=noreply@example.com
+#SMTP_EMAIL_PASSWORD=password
+#SMTP_EMAIL_PORT=587
+
+#SCALEWAY_EMAIL_PROJECT_ID=uuid
+#SCALEWAY_EMAIL_SECRET_KEY=secret

.env_db.example

@@ -0,0 +1,4 @@
+POSTGRES_DB=decentralised_book_index_prod
+POSTGRES_USER=postgres
+POSTGRES_PASSWORD=postgres
+

.formatter.exs

@@ -1,5 +1,7 @@
 [
   import_deps: [
+    :oban,
+    :ash_oban,
     :ash_json_api,
     :ash_authentication_phoenix,
     :ash_authentication,

COPYING

@@ -0,0 +1,661 @@
+                    GNU AFFERO GENERAL PUBLIC LICENSE
+                       Version 3, 19 November 2007
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+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Remote Network Interaction; Use with the GNU General Public License.
+
+  Notwithstanding any other provision of this License, if you modify the
+Program, your modified version must prominently offer all users
+interacting with it remotely through a computer network (if your version
+supports such interaction) an opportunity to receive the Corresponding
+Source of your version by providing access to the Corresponding Source
+from a network server at no charge, through some standard or customary
+means of facilitating copying of software.  This Corresponding Source
+shall include the Corresponding Source for any work covered by version 3
+of the GNU General Public License that is incorporated pursuant to the
+following paragraph.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the work with which it is combined will remain governed by version
+3 of the GNU General Public License.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU Affero General Public License from time to time.  Such new versions
+will be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU Affero General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU Affero General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU Affero General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Affero General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Affero General Public License for more details.
+
+    You should have received a copy of the GNU Affero General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If your software can interact with users remotely through a computer
+network, you should also make sure that it provides a way for users to
+get its source.  For example, if your program is a web application, its
+interface could display a "Source" link that leads users to an archive
+of the code.  There are many ways you could offer source, and different
+solutions will be better for different programs; see section 13 for the
+specific requirements.
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU AGPL, see
+<https://www.gnu.org/licenses/>.

Dockerfile

@@ -0,0 +1,97 @@
+# Find eligible builder and runner images on Docker Hub. We use Ubuntu/Debian
+# instead of Alpine to avoid DNS resolution issues in production.
+#
+# https://hub.docker.com/r/hexpm/elixir/tags?page=1&name=ubuntu
+# https://hub.docker.com/_/ubuntu?tab=tags
+#
+# This file is based on these images:
+#
+#   - https://hub.docker.com/r/hexpm/elixir/tags - for the build image
+#   - https://hub.docker.com/_/debian?tab=tags&page=1&name=bullseye-20250317-slim - for the release image
+#   - https://pkgs.org/ - resource for finding needed packages
+#   - Ex: hexpm/elixir:1.17.3-erlang-25.3.2.18-debian-bullseye-20250317-slim
+#
+ARG ELIXIR_VERSION=1.17.3
+ARG OTP_VERSION=25.3.2.18
+ARG DEBIAN_VERSION=bullseye-20250317-slim
+
+ARG BUILDER_IMAGE="hexpm/elixir:${ELIXIR_VERSION}-erlang-${OTP_VERSION}-debian-${DEBIAN_VERSION}"
+ARG RUNNER_IMAGE="debian:${DEBIAN_VERSION}"
+
+FROM ${BUILDER_IMAGE} as builder
+
+# install build dependencies
+RUN apt-get update -y && apt-get install -y build-essential git nodejs npm \
+    && apt-get clean && rm -f /var/lib/apt/lists/*_*
+
+# prepare build dir
+WORKDIR /app
+
+# install hex + rebar
+RUN mix local.hex --force && \
+    mix local.rebar --force
+
+# set build ENV
+ENV MIX_ENV="prod"
+
+# install mix dependencies
+COPY mix.exs mix.lock ./
+RUN mix deps.get --only $MIX_ENV
+RUN mkdir config
+
+# copy compile-time config files before we compile dependencies
+# to ensure any relevant config change will trigger the dependencies
+# to be re-compiled.
+COPY config/config.exs config/${MIX_ENV}.exs config/
+RUN mix deps.compile
+
+COPY priv priv
+
+COPY lib lib
+
+COPY assets assets
+
+# compile assets
+RUN mix assets.deploy
+
+# Compile the release
+RUN mix compile
+
+# Changes to config/runtime.exs don't require recompiling the code
+COPY config/runtime.exs config/
+
+COPY rel rel
+RUN mix release
+
+# start a new build stage so that the final image will only contain
+# the compiled release and other runtime necessities
+FROM ${RUNNER_IMAGE}
+
+RUN apt-get update -y && \
+  apt-get install -y libstdc++6 openssl libncurses5 locales ca-certificates \
+  && apt-get clean && rm -f /var/lib/apt/lists/*_*
+
+# Set the locale
+RUN sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen && locale-gen
+
+ENV LANG en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL en_US.UTF-8
+
+WORKDIR "/app"
+RUN chown nobody /app
+
+# set runner ENV
+ENV MIX_ENV="prod"
+
+# Only copy the final release from the build stage
+COPY --from=builder --chown=nobody:root /app/_build/${MIX_ENV}/rel/decentralised_book_index ./
+
+USER nobody
+
+# If using an environment that doesn't automatically reap zombie processes, it is
+# advised to add an init process such as tini via `apt-get install`
+# above and adding an entrypoint. See https://github.com/krallin/tini for details
+# ENTRYPOINT ["/tini", "--"]
+
+CMD ["/app/bin/server"]

README.md

@@ -1,18 +1,37 @@
 # DecentralisedBookIndex
 
-To start your Phoenix server:
+**DecentralisedBookIndex** is a web-server to manage the book metadata in the decentralise manner.
 
-  * Run `mix setup` to install and setup dependencies
-  * Start Phoenix endpoint with `mix phx.server` or inside IEx with `iex -S mix phx.server`
+## Getting started
+- clone this repository
+- copy `.env.example` file and save as `.env`
+- copy `.env_db.example` file and save as `.env_db`
+- change the values in `.env` and `.env_db`
+  you can use `mix phx.gen.secret` to generate secrets.
+  update the PHX_HOST to your domain name.
+- run `docker compose up -d`
+- run migrations `docker exec -it dbi bin/migrate`
+- open the url (`PHX_HOST`) in a browser.
+  register a user.
+- install nginx for as a reverse proxy
+- configure the web-site config for nginx
+  change example.com to your domain.
+  copy example config from `examples/nginx/example.com.conf` to `/etc/nginx/sites-available`.
+  rename the file to your domain and change the domain within the file.
+  enable the web-site with command `ln -s /etc/nginx/sites-available/example.com.conf /etc/nginx/sites-enabled/`.
+- run the commands to promote an user to the admin.
+  change `admin@example.com` to your email.
+  ```shell
+  docker exec -it dbi bin/decentralised_book_index remote
+  DecentralisedBookIndex.Accounts.User.get_by_email!("admin@example.com", authorize?: false) \
+  |>  DecentralisedBookIndex.Accounts.User.set_role(:admin, authorize?: false)
+  ```
+  close the terminal with `Ctrl + c` and `a`.
 
-Now you can visit [`localhost:4000`](http://localhost:4000) from your browser.
+# Author
 
-Ready to run in production? Please [check our deployment guides](https://hexdocs.pm/phoenix/deployment.html).
+Kostiantyn Klochko (c) 2025
 
-## Learn more
+# License
 
-  * Official website: https://www.phoenixframework.org/
-  * Guides: https://hexdocs.pm/phoenix/overview.html
-  * Docs: https://hexdocs.pm/phoenix
-  * Forum: https://elixirforum.com/c/phoenix-forum
-  * Source: https://github.com/phoenixframework/phoenix
+Under the GNU Affero General Public License v3.0.

assets/js/app.js

@@ -22,10 +22,15 @@ import {Socket} from "phoenix"
 import {LiveSocket} from "phoenix_live_view"
 import topbar from "../vendor/topbar"
 
+import "flowbite/dist/flowbite.phoenix.js";
+import bidSort from "./bidSort";
+import authorRoleSort from "./authorRoleSort";
+
 let csrfToken = document.querySelector("meta[name='csrf-token']").getAttribute("content")
 let liveSocket = new LiveSocket("/live", Socket, {
   longPollFallbackMs: 2500,
-  params: {_csrf_token: csrfToken}
+  params: {_csrf_token: csrfToken},
+  hooks: { bidSort, authorRoleSort }
 })
 
 // Show progress bar on live navigation and form submits
@@ -42,3 +47,14 @@ liveSocket.connect()
 // >> liveSocket.disableLatencySim()
 window.liveSocket = liveSocket
 
+// to init new Flowbite components if a page updated by navigation
+window.addEventListener("phx:navigate", () => {
+  const delay = 100;
+
+  setTimeout(() => {
+    window.dispatchEvent(
+      new Event("phx:page-loading-stop", { bubbles: true, cancelable: true })
+    );
+  }, delay);
+});
+

assets/js/authorRoleSort.js

@@ -0,0 +1,14 @@
+import Sortable from 'sortablejs';
+
+export default {
+    mounted() {
+        var sortable = new Sortable(this.el, {
+            handle: ".handle",
+            draggable: "tr",
+            ghostClass: "bg-gray-100",
+            onSort: (e) => {
+                this.pushEventTo(this.el, "reorder-author-role", { order: sortable.toArray(e.to) })
+            }
+        })
+    }
+}

assets/js/bidSort.js

@@ -0,0 +1,14 @@
+import Sortable from 'sortablejs';
+
+export default {
+    mounted() {
+        var sortable = new Sortable(this.el, {
+            handle: ".handle",
+            draggable: "tr",
+            ghostClass: "bg-gray-100",
+            onSort: (e) => {
+                this.pushEventTo(this.el, "reorder-bids", { order: sortable.toArray(e.to) })
+            }
+        })
+    }
+}

assets/package-lock.json

@@ -0,0 +1,297 @@
+{
+  "name": "assets",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "flowbite": "^3.1.2",
+        "sortablejs": "^1.15.6"
+      }
+    },
+    "node_modules/@popperjs/core": {
+      "version": "2.11.8",
+      "resolved": "https://registry.npmjs.org/@popperjs/core/-/core-2.11.8.tgz",
+      "integrity": "sha512-P1st0aksCrn9sGZhp8GMYwBnQsbvAWsZAX44oXNNvLHGqAOcoVxmjZiohstwQ7SqKnbR47akdNi+uleWD8+g6A==",
+      "license": "MIT",
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/popperjs"
+      }
+    },
+    "node_modules/@rollup/plugin-node-resolve": {
+      "version": "15.3.1",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-15.3.1.tgz",
+      "integrity": "sha512-tgg6b91pAybXHJQMAAwW9VuWBO6Thi+q7BCNARLwSqlmsHz0XYURtGvh/AuwSADXSI4h/2uHbs7s4FzlZDGSGA==",
+      "license": "MIT",
+      "dependencies": {
+        "@rollup/pluginutils": "^5.0.1",
+        "@types/resolve": "1.20.2",
+        "deepmerge": "^4.2.2",
+        "is-module": "^1.0.0",
+        "resolve": "^1.22.1"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^2.78.0||^3.0.0||^4.0.0"
+      },
+      "peerDependenciesMeta": {
+        "rollup": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@rollup/pluginutils": {
+      "version": "5.1.4",
+      "resolved": "https://registry.npmjs.org/@rollup/pluginutils/-/pluginutils-5.1.4.tgz",
+      "integrity": "sha512-USm05zrsFxYLPdWWq+K3STlWiT/3ELn3RcV5hJMghpeAIhxfsUIg6mt12CBJBInWMV4VneoV7SfGv8xIwo2qNQ==",
+      "license": "MIT",
+      "dependencies": {
+        "@types/estree": "^1.0.0",
+        "estree-walker": "^2.0.2",
+        "picomatch": "^4.0.2"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^1.20.0||^2.0.0||^3.0.0||^4.0.0"
+      },
+      "peerDependenciesMeta": {
+        "rollup": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@types/estree": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/@types/estree/-/estree-1.0.7.tgz",
+      "integrity": "sha512-w28IoSUCJpidD/TGviZwwMJckNESJZXFu7NBZ5YJ4mEUnNraUn9Pm8HSZm/jDF1pDWYKspWE7oVphigUPRakIQ==",
+      "license": "MIT"
+    },
+    "node_modules/@types/resolve": {
+      "version": "1.20.2",
+      "resolved": "https://registry.npmjs.org/@types/resolve/-/resolve-1.20.2.tgz",
+      "integrity": "sha512-60BCwRFOZCQhDncwQdxxeOEEkbc5dIMccYLwbxsS4TUNeVECQ/pBJ0j09mrHOl/JJvpRPGwO9SvE4nR2Nb/a4Q==",
+      "license": "MIT"
+    },
+    "node_modules/deepmerge": {
+      "version": "4.3.1",
+      "resolved": "https://registry.npmjs.org/deepmerge/-/deepmerge-4.3.1.tgz",
+      "integrity": "sha512-3sUqbMEc77XqpdNO7FRyRog+eW3ph+GYCbj+rK+uYyRMuwsVy0rMiVtPn+QJlKFvWP/1PYpapqYn0Me2knFn+A==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/estree-walker": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/estree-walker/-/estree-walker-2.0.2.tgz",
+      "integrity": "sha512-Rfkk/Mp/DL7JVje3u18FxFujQlTNR2q6QfMSMB7AvCBx91NGj/ba3kCfza0f6dVDbw7YlRf/nDrn7pQrCCyQ/w==",
+      "license": "MIT"
+    },
+    "node_modules/flowbite": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/flowbite/-/flowbite-3.1.2.tgz",
+      "integrity": "sha512-MkwSgbbybCYgMC+go6Da5idEKUFfMqc/AmSjm/2ZbdmvoKf5frLPq/eIhXc9P+rC8t9boZtUXzHDgt5whZ6A/Q==",
+      "license": "MIT",
+      "dependencies": {
+        "@popperjs/core": "^2.9.3",
+        "flowbite-datepicker": "^1.3.1",
+        "mini-svg-data-uri": "^1.4.3",
+        "postcss": "^8.5.1"
+      }
+    },
+    "node_modules/flowbite-datepicker": {
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/flowbite-datepicker/-/flowbite-datepicker-1.3.2.tgz",
+      "integrity": "sha512-6Nfm0MCVX3mpaR7YSCjmEO2GO8CDt6CX8ZpQnGdeu03WUCWtEPQ/uy0PUiNtIJjJZWnX0Cm3H55MOhbD1g+E/g==",
+      "license": "MIT",
+      "dependencies": {
+        "@rollup/plugin-node-resolve": "^15.2.3",
+        "flowbite": "^2.0.0"
+      }
+    },
+    "node_modules/flowbite-datepicker/node_modules/flowbite": {
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/flowbite/-/flowbite-2.5.2.tgz",
+      "integrity": "sha512-kwFD3n8/YW4EG8GlY3Od9IoKND97kitO+/ejISHSqpn3vw2i5K/+ZI8Jm2V+KC4fGdnfi0XZ+TzYqQb4Q1LshA==",
+      "license": "MIT",
+      "dependencies": {
+        "@popperjs/core": "^2.9.3",
+        "flowbite-datepicker": "^1.3.0",
+        "mini-svg-data-uri": "^1.4.3"
+      }
+    },
+    "node_modules/function-bind": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.2.tgz",
+      "integrity": "sha512-7XHNxH7qX9xG5mIwxkhumTox/MIRNcOgDrxWsMt2pAr23WHp6MrRlN7FBSFpCpr+oVO0F744iUgR82nJMfG2SA==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/hasown": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/hasown/-/hasown-2.0.2.tgz",
+      "integrity": "sha512-0hJU9SCPvmMzIBdZFqNPXWa6dqh7WdH0cII9y+CyS8rG3nL48Bclra9HmKhVVUHyPWNH5Y7xDwAB7bfgSjkUMQ==",
+      "license": "MIT",
+      "dependencies": {
+        "function-bind": "^1.1.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      }
+    },
+    "node_modules/is-core-module": {
+      "version": "2.16.1",
+      "resolved": "https://registry.npmjs.org/is-core-module/-/is-core-module-2.16.1.tgz",
+      "integrity": "sha512-UfoeMA6fIJ8wTYFEUjelnaGI67v6+N7qXJEvQuIGa99l4xsCruSYOVSQ0uPANn4dAzm8lkYPaKLrrijLq7x23w==",
+      "license": "MIT",
+      "dependencies": {
+        "hasown": "^2.0.2"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/is-module": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/is-module/-/is-module-1.0.0.tgz",
+      "integrity": "sha512-51ypPSPCoTEIN9dy5Oy+h4pShgJmPCygKfyRCISBI+JoWT/2oJvK8QPxmwv7b/p239jXrm9M1mlQbyKJ5A152g==",
+      "license": "MIT"
+    },
+    "node_modules/mini-svg-data-uri": {
+      "version": "1.4.4",
+      "resolved": "https://registry.npmjs.org/mini-svg-data-uri/-/mini-svg-data-uri-1.4.4.tgz",
+      "integrity": "sha512-r9deDe9p5FJUPZAk3A59wGH7Ii9YrjjWw0jmw/liSbHl2CHiyXj6FcDXDu2K3TjVAXqiJdaw3xxwlZZr9E6nHg==",
+      "license": "MIT",
+      "bin": {
+        "mini-svg-data-uri": "cli.js"
+      }
+    },
+    "node_modules/nanoid": {
+      "version": "3.3.11",
+      "resolved": "https://registry.npmjs.org/nanoid/-/nanoid-3.3.11.tgz",
+      "integrity": "sha512-N8SpfPUnUp1bK+PMYW8qSWdl9U+wwNWI4QKxOYDy9JAro3WMX7p2OeVRF9v+347pnakNevPmiHhNmZ2HbFA76w==",
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "bin": {
+        "nanoid": "bin/nanoid.cjs"
+      },
+      "engines": {
+        "node": "^10 || ^12 || ^13.7 || ^14 || >=15.0.1"
+      }
+    },
+    "node_modules/path-parse": {
+      "version": "1.0.7",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
+      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw==",
+      "license": "MIT"
+    },
+    "node_modules/picocolors": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/picocolors/-/picocolors-1.1.1.tgz",
+      "integrity": "sha512-xceH2snhtb5M9liqDsmEw56le376mTZkEX/jEb/RxNFyegNul7eNslCXP9FDj/Lcu0X8KEyMceP2ntpaHrDEVA==",
+      "license": "ISC"
+    },
+    "node_modules/picomatch": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/picomatch/-/picomatch-4.0.2.tgz",
+      "integrity": "sha512-M7BAV6Rlcy5u+m6oPhAPFgJTzAioX/6B0DxyvDlo9l8+T3nLKbrczg2WLUyzd45L8RqfUMyGPzekbMvX2Ldkwg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/jonschlinkert"
+      }
+    },
+    "node_modules/postcss": {
+      "version": "8.5.3",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.5.3.tgz",
+      "integrity": "sha512-dle9A3yYxlBSrt8Fu+IpjGT8SY8hN0mlaA6GY8t0P5PjIOZemULz/E2Bnm/2dcUOena75OTNkHI76uZBNUUq3A==",
+      "funding": [
+        {
+          "type": "opencollective",
+          "url": "https://opencollective.com/postcss/"
+        },
+        {
+          "type": "tidelift",
+          "url": "https://tidelift.com/funding/github/npm/postcss"
+        },
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/ai"
+        }
+      ],
+      "license": "MIT",
+      "dependencies": {
+        "nanoid": "^3.3.8",
+        "picocolors": "^1.1.1",
+        "source-map-js": "^1.2.1"
+      },
+      "engines": {
+        "node": "^10 || ^12 || >=14"
+      }
+    },
+    "node_modules/resolve": {
+      "version": "1.22.10",
+      "resolved": "https://registry.npmjs.org/resolve/-/resolve-1.22.10.tgz",
+      "integrity": "sha512-NPRy+/ncIMeDlTAsuqwKIiferiawhefFJtkNSW0qZJEqMEb+qBt/77B/jGeeek+F0uOeN05CDa6HXbbIgtVX4w==",
+      "license": "MIT",
+      "dependencies": {
+        "is-core-module": "^2.16.0",
+        "path-parse": "^1.0.7",
+        "supports-preserve-symlinks-flag": "^1.0.0"
+      },
+      "bin": {
+        "resolve": "bin/resolve"
+      },
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    },
+    "node_modules/sortablejs": {
+      "version": "1.15.6",
+      "resolved": "https://registry.npmjs.org/sortablejs/-/sortablejs-1.15.6.tgz",
+      "integrity": "sha512-aNfiuwMEpfBM/CN6LY0ibyhxPfPbyFeBTYJKCvzkJ2GkUpazIt3H+QIPAMHwqQ7tMKaHz1Qj+rJJCqljnf4p3A==",
+      "license": "MIT"
+    },
+    "node_modules/source-map-js": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/source-map-js/-/source-map-js-1.2.1.tgz",
+      "integrity": "sha512-UXWMKhLOwVKb728IUtQPXxfYU+usdybtUrK/8uGE8CQMvrhOpwvzDBwj0QhSL7MQc7vIsISBG8VQ8+IDQxpfQA==",
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/supports-preserve-symlinks-flag": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
+      "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==",
+      "license": "MIT",
+      "engines": {
+        "node": ">= 0.4"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/ljharb"
+      }
+    }
+  }
+}

assets/package.json

@@ -0,0 +1,6 @@
+{
+  "dependencies": {
+    "flowbite": "^3.1.2",
+    "sortablejs": "^1.15.6"
+  }
+}

assets/tailwind.config.js

@@ -10,7 +10,8 @@ module.exports = {
     "../deps/ash_authentication_phoenix/**/*.*ex",
     "./js/**/*.js",
     "../lib/decentralised_book_index_web.ex",
-    "../lib/decentralised_book_index_web/**/*.*ex"
+    "../lib/decentralised_book_index_web/**/*.*ex",
+    "./node_modules/flowbite/**/*.js"
   ],
   theme: {
     extend: {
@@ -21,6 +22,7 @@ module.exports = {
   },
   plugins: [
     require("@tailwindcss/forms"),
+    require('flowbite/plugin'),
     // Allows prefixing tailwind classes with LiveView classes to add rules
     // only when LiveView classes are applied, for example:
     //

config/config.exs

@@ -7,6 +7,19 @@
 # General application configuration
 import Config
 
+config :ash_oban, pro?: false
+config :decentralised_book_index, Oban,
+  repo: DecentralisedBookIndex.Repo,
+  queues: [default: 14],
+  plugins: [
+    # A job will be pruned after 7 days.
+    {Oban.Plugins.Pruner, max_age: 7*24*60*60},
+    {Oban.Plugins.Cron,
+     crontab: [
+      {"@daily", DecentralisedBookIndex.SyncWorker},
+    ]}
+  ]
+
 config :mime,
   extensions: %{"json" => "application/vnd.api+json"},
   types: %{"application/vnd.api+json" => ["json"]}

config/runtime.exs

@@ -1,5 +1,6 @@
 import Config
 
+require Logger
 # config/runtime.exs is executed for all environments, including
 # during releases. It is executed after compilation and before the
 # system starts, so it is typically used to load production configuration
@@ -119,4 +120,33 @@ if config_env() == :prod do
   #     config :swoosh, :api_client, Swoosh.ApiClient.Hackney
   #
   # See https://hexdocs.pm/swoosh/Swoosh.html#module-installation for details.
+
+  if System.get_env("SMTP_EMAIL_RELAY") do
+    Logger.info("Using SMTP for email delivery")
+
+    config :decentralised_book_index, DecentralisedBookIndex.Mailer,
+      adapter: Swoosh.Adapters.SMTP,
+      relay: System.get_env("SMTP_EMAIL_RELAY"),
+      username: System.get_env("SMTP_EMAIL_USERNAME"),
+      password: System.get_env("SMTP_EMAIL_PASSWORD"),
+      ssl: true,
+      tls: :always,
+      auth: :always,
+      port: System.get_env("SMTP_EMAIL_PORT"),
+      retries: 2,
+      no_mx_lookups: false
+
+    config :swoosh, :api_client, Swoosh.ApiClient.Finch
+  end
+
+  if System.get_env("SCALEWAY_EMAIL_PROJECT_ID") do
+    Logger.info("Using Scaleway for email delivery")
+
+    config :decentralised_book_index, DecentralisedBookIndex.Mailer,
+      adapter: Swoosh.Adapters.Scaleway,
+      project_id: System.get_env("SCALEWAY_EMAIL_PROJECT_ID"),
+      secret_key: System.get_env("SCALEWAY_EMAIL_SECRET_KEY")
+
+    config :swoosh, :api_client, Swoosh.ApiClient.Finch
+  end
 end

config/test.exs

@@ -1,4 +1,5 @@
 import Config
+config :decentralised_book_index, Oban, testing: :manual
 config :decentralised_book_index, token_signing_secret: "k+YMBGan4wi4I3DRYRVLNVCOIDIqm+O5"
 config :ash, disable_async?: true
 
@@ -20,7 +21,7 @@ config :decentralised_book_index, DecentralisedBookIndex.Repo,
 config :decentralised_book_index, DecentralisedBookIndexWeb.Endpoint,
   http: [ip: {127, 0, 0, 1}, port: 4002],
   secret_key_base: "6NMai4xOf+JhqltU9Ecf+U+DcyMSKs7SYtUc1Kf06H8UrG+MmJu3nXHS4CosOOdN",
-  server: false
+  server: true
 
 # In test we don't send emails
 config :decentralised_book_index, DecentralisedBookIndex.Mailer, adapter: Swoosh.Adapters.Test

docker-compose.yml

@@ -0,0 +1,32 @@
+version: '3'
+
+networks:
+  dbi:
+    external: false
+
+services:
+  db:
+    image: postgres:17-alpine
+    restart: always
+    volumes:
+      - ./data:/var/lib/postgresql/data
+    networks:
+      - dbi
+    env_file:
+      - .env_db
+
+  web:
+    # to build the image
+    build:
+      context: .
+    container_name: dbi
+    ports:
+      - 4000:4000
+    depends_on:
+      - db
+    networks:
+      - dbi
+    env_file:
+      - .env
+
+

examples/nginx/example.com.conf

@@ -0,0 +1,17 @@
+server {
+       server_name example.com;
+
+       location / {
+                proxy_pass http://localhost:4000;
+
+                # Add WebSocket support
+                proxy_http_version 1.1;
+                proxy_set_header Upgrade $http_upgrade;
+                proxy_set_header Connection "upgrade";
+
+                proxy_set_header Host $host;
+                proxy_set_header X-Real-IP $remote_addr;
+                proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+                proxy_set_header X-Forwarded-Proto $scheme;
+       }
+}

lib/decentralised_book_index/accounts/role.ex

@@ -0,0 +1,11 @@
+defmodule DecentralisedBookIndex.Accounts.Role do
+  use Ash.Type.Enum, values: [:user, :moderator, :admin]
+
+  def can_moderate?(role) when is_atom(role) do
+    role in [:moderator, :admin]
+  end
+
+  def can_administrate?(role) when is_atom(role) do
+    role == :admin
+  end
+end

lib/decentralised_book_index/accounts/user.ex

@@ -48,6 +48,18 @@ defmodule DecentralisedBookIndex.Accounts.User do
     repo DecentralisedBookIndex.Repo
   end
 
+  code_interface do
+    define :list_moderators
+    define :search, action: :search, args: [:email]
+
+    define :get_by_id, action: :read, get_by: [:id]
+    define :get_by_email, args: [:email]
+
+    define :set_role, args: [:role]
+    define :make_moderator
+    define :make_user
+  end
+
   actions do
     defaults [:read]
 
@@ -218,6 +230,38 @@ defmodule DecentralisedBookIndex.Accounts.User do
       # Generates an authentication token for the user
       change AshAuthentication.GenerateTokenChange
     end
+
+    update :set_role do
+      description "Sets user role"
+      accept [:role]
+    end
+
+    update :make_moderator do
+      description "Sets user role to moderator"
+      change set_attribute(:role, :moderator)
+    end
+
+    update :make_user do
+      description "Sets user role to user"
+      change set_attribute(:role, :user)
+    end
+
+    read :list_moderators do
+      description "Looks up users with the moderator role"
+
+      filter expr(role == :moderator)
+    end
+
+    read :search do
+      argument :email, :ci_string do
+        constraints allow_empty?: true
+        default ""
+      end
+
+      filter expr(contains(email, ^arg(:email)))
+
+      pagination offset?: true, default_limit: 10
+    end
   end
 
   policies do
@@ -225,6 +269,10 @@ defmodule DecentralisedBookIndex.Accounts.User do
       authorize_if always()
     end
 
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
     policy always() do
       forbid_if always()
     end
@@ -242,6 +290,12 @@ defmodule DecentralisedBookIndex.Accounts.User do
       allow_nil? false
       sensitive? true
     end
+
+    attribute :role, DecentralisedBookIndex.Accounts.Role do
+      allow_nil? false
+      default :user
+      public? true
+    end
   end
 
   identities do

lib/decentralised_book_index/accounts/user/senders/send_new_user_confirmation_email.ex

@@ -13,8 +13,7 @@ defmodule DecentralisedBookIndex.Accounts.User.Senders.SendNewUserConfirmationEm
   @impl true
   def send(user, token, _) do
     new()
-    # TODO: Replace with your email
-    |> from({"noreply", "noreply@example.com"})
+    |> from({"noreply", System.get_env("SYSTEM_EMAIL", "noreply@example.com")})
     |> to(to_string(user.email))
     |> subject("Confirm your email address")
     |> html_body(body(token: token))

lib/decentralised_book_index/accounts/user/senders/send_password_reset_email.ex

@@ -13,8 +13,7 @@ defmodule DecentralisedBookIndex.Accounts.User.Senders.SendPasswordResetEmail do
   @impl true
   def send(user, token, _) do
     new()
-    # TODO: Replace with your email
-    |> from({"noreply", "noreply@example.com"})
+    |> from({"noreply", System.get_env("SYSTEM_EMAIL", "noreply@example.com")})
     |> to(to_string(user.email))
     |> subject("Reset your password")
     |> html_body(body(token: token))

lib/decentralised_book_index/application.ex

@@ -10,6 +10,11 @@ defmodule DecentralisedBookIndex.Application do
     children = [
       DecentralisedBookIndexWeb.Telemetry,
       DecentralisedBookIndex.Repo,
+      {Oban,
+       AshOban.config(
+         Application.fetch_env!(:decentralised_book_index, :ash_domains),
+         Application.fetch_env!(:decentralised_book_index, Oban)
+       )},
       {DNSCluster,
        query: Application.get_env(:decentralised_book_index, :dns_cluster_query) || :ignore},
       {Phoenix.PubSub, name: DecentralisedBookIndex.PubSub},

lib/decentralised_book_index/metadata.ex

@@ -1,41 +1,116 @@
 defmodule DecentralisedBookIndex.Metadata do
-  use Ash.Domain,
-    otp_app: :decentralised_book_index
+  use Ash.Domain, otp_app: :decentralised_book_index, extensions: [AshJsonApi.Domain, AshPhoenix]
+
+  alias DecentralisedBookIndex.Metadata
+
+  json_api do
+    routes do
+      base_route "/books", Metadata.Book do
+        get :by_id
+        index :search
+
+        related :bids, :read, primary?: true
+        related :author_roles, :read, primary?: true
+        related :publisher, :read, primary?: true
+      end
+
+      base_route "/authors", Metadata.Author do
+        get :by_id
+        index :search
+      end
+
+      base_route "/publishers", Metadata.Publisher do
+        get :by_id
+        index :search
+      end
+
+      base_route "/servers", Metadata.DBIServer do
+        get :by_id
+        index :search
+      end
+    end
+  end
 
   resources do
     resource DecentralisedBookIndex.Metadata.Book do
       define :create_book,
         action: :create,
-        args: [:title, :isbn, :description, :author_roles, {:optional, :book_editions_registry_id}]
+        args: [
+          :title,
+          :description,
+          :language,
+          :format,
+          :page_count,
+          :published,
+          :bids,
+          :author_roles,
+          :publisher_id,
+          {:optional, :cover_image_url},
+          {:optional, :book_editions_registry_id}
+        ]
 
       define :add_book_to_related_editions_registry,
         action: :add_book_to_related_editions_registry,
-        args: [:title, :isbn, :description, :author_roles, :related_book_id]
+        args: [
+          :title,
+          :description,
+          :language,
+          :format,
+          :page_count,
+          :published,
+          :bids,
+          :author_roles,
+          :publisher_id,
+          :related_book_id,
+          {:optional, :cover_image_url}
+        ]
 
       define :list_books, action: :read
       define :get_book_by_id, args: [:id], action: :by_id
+      define :get_book_by_bid, args: [:type, :bid], action: :by_bid
       define :get_book_alternative_editions, args: [:book], action: :get_alternative_editions
+      define :get_author_books, args: [:author], action: :get_author_books
+      define :search_book, action: :search, args: [:query]
+      define :search_book_by_bid, action: :search_by_bid, args: [:type, :bid]
       define :update_book, action: :update
+      define :assign_book_cover_image, args: [:cover_image_url], action: :assign_cover_image
+      define :assign_book_dbi_server, args: [:dbi_server_id], action: :assign_dbi_server_id
       define :destroy_book, action: :destroy
     end
 
     resource DecentralisedBookIndex.Metadata.Author do
       define :create_author,
         action: :create,
-        args: [:name, :description, {:optional, :author_alias_registry_id}]
+        args: [
+          :name,
+          :description,
+          {:optional, :avatar_url},
+          {:optional, :author_alias_registry_id}
+        ]
 
       define :add_author_to_related_alias_registry,
         action: :add_author_to_related_alias_registry,
-        args: [:name, :description, :related_author_id]
+        args: [:name, :description, :related_author_id, {:optional, :avatar_url}]
 
       define :list_authors, action: :read
       define :get_author_by_id, args: [:id], action: :by_id
+      define :get_author_ids, args: [:author], action: :get_author_ids
       define :get_author_alternative_names, args: [:author], action: :get_alternative_names
+      define :search_author, action: :search, args: [:name]
       define :update_author, action: :update
+      define :assign_author_avatar_image, args: [:avatar_url], action: :assign_avatar_image
+      define :assign_author_dbi_server, args: [:dbi_server_id], action: :assign_dbi_server_id
       define :destroy_author, action: :destroy
     end
 
-    resource DecentralisedBookIndex.Metadata.DBIServer
+    resource DecentralisedBookIndex.Metadata.DBIServer do
+      define :create_dbi_server, args: [:name, :url, :sync_on?], action: :create
+      define :list_dbi_server, action: :read
+      define :get_dbi_server_by_id, args: [:id], action: :by_id
+      define :search_dbi_server, action: :search, args: [:name]
+      define :update_dbi_server, action: :update
+      define :destroy_dbi_server, action: :destroy
+    end
 
     resource DecentralisedBookIndex.Metadata.AuthorAliasRegistry do
       define :create_author_alias_registry, action: :create
@@ -53,6 +128,31 @@ defmodule DecentralisedBookIndex.Metadata do
       define :destroy_book_editions_registry, action: :destroy
     end
 
-    resource DecentralisedBookIndex.Metadata.AuthorRole
+    resource DecentralisedBookIndex.Metadata.AuthorRole do
+      define :create_author_role, action: :create, args: [:author_id, :order, :role]
+      define :list_author_roles, action: :read
+      define :get_author_role_by_id, args: [:id], action: :by_id
+      define :get_author_roles_by_book_id, args: [:book_id], action: :by_book_id
+      define :update_author_role, action: :update
+      define :destroy_author_role, action: :destroy
+    end
+
+    resource DecentralisedBookIndex.Metadata.BookId do
+      define :create_book_id, action: :create, args: [:type, :bid, :order]
+      define :list_book_ids, action: :read
+      define :get_book_id_by_id, args: [:id], action: :by_id
+      define :update_book_id, action: :update
+      define :destroy_book_id, action: :destroy
+    end
+
+    resource DecentralisedBookIndex.Metadata.Publisher do
+      define :create_publisher, action: :create, args: [:name]
+      define :list_publishers, action: :read
+      define :get_publisher_by_id, args: [:id], action: :by_id
+      define :search_publisher, action: :search, args: [:name]
+      define :update_publisher, action: :update
+      define :assign_publisher_dbi_server, args: [:dbi_server_id], action: :assign_dbi_server_id
+      define :destroy_publisher, action: :destroy
+    end
   end
 end

lib/decentralised_book_index/metadata/author.ex

@@ -2,28 +2,48 @@ defmodule DecentralisedBookIndex.Metadata.Author do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    extensions: [AshJsonApi.Resource],
+    authorizers: [Ash.Policy.Authorizer]
 
   require Ash.Query
   alias DecentralisedBookIndex.Metadata
 
+  @brief_description_length 20
+  @brief_description_max_length @brief_description_length + 3
+
+  json_api do
+    type "author"
+  end
+
   postgres do
     table "authors"
     repo DecentralisedBookIndex.Repo
+
+    custom_indexes do
+      index "name gin_trgm_ops", name: "author_name_gin_index", using: "GIN"
+    end
+  end
+
+  resource do
+    description "An author's metadata."
   end
 
   actions do
-    defaults [:read, :update, :destroy]
+    defaults [:read, :destroy]
 
     create :create do
       primary? true
-      accept [:name, :description, :author_alias_registry_id]
+      accept [:name, :description, :avatar_url, :author_alias_registry_id, :dbi_server_id]
+
+      change fn changeset, context ->
+        actor = Map.get(context, :actor, nil)
 
-      change fn changeset, _ ->
         registry_id = Ash.Changeset.get_attribute(changeset, :author_alias_registry_id)
 
         if registry_id == nil do
-          {:ok, registry} = DecentralisedBookIndex.Metadata.create_author_alias_registry()
+          registry =
+            DecentralisedBookIndex.Metadata.create_author_alias_registry!(actor: actor)
 
           Ash.Changeset.force_change_attribute(changeset, :author_alias_registry_id, registry.id)
         else
@@ -33,7 +53,7 @@ defmodule DecentralisedBookIndex.Metadata.Author do
     end
 
     create :add_author_to_related_alias_registry do
-      accept [:name, :description]
+      accept [:name, :description, :avatar_url]
 
       argument :related_author_id, :uuid do
         allow_nil? false
@@ -45,14 +65,46 @@ defmodule DecentralisedBookIndex.Metadata.Author do
         if related_author_id == nil do
           Ash.Changeset.add_error(changeset, :related_author_id, "Related author is empty")
         else
-          {:ok, related_author} = DecentralisedBookIndex.Metadata.get_author_by_id(related_author_id)
+          related_author =
+            DecentralisedBookIndex.Metadata.get_author_by_id!(related_author_id)
 
-          Ash.Changeset.force_change_attribute(changeset, :author_alias_registry_id, related_author.author_alias_registry_id)
+          Ash.Changeset.force_change_attribute(
+            changeset,
+            :author_alias_registry_id,
+            related_author.author_alias_registry_id
+          )
+        end
+      end
+    end
+
+    create :sync_create do
+      accept [
+        :id,
+        :name,
+        :description,
+        :avatar_url,
+        :author_alias_registry_id,
+        :inserted_at,
+        :updated_at,
+        :dbi_server_id
+      ]
+
+      change fn changeset, context ->
+        registry_id = Ash.Changeset.get_attribute(changeset, :author_alias_registry_id)
+
+        if registry_id == nil do
+          {:ok, registry} =
+            DecentralisedBookIndex.Metadata.create_author_alias_registry(authorize?: false)
+
+          Ash.Changeset.force_change_attribute(changeset, :author_alias_registry_id, registry.id)
+        else
+          changeset
         end
       end
     end
 
     read :by_id do
+      description "Return the Author by its id."
       argument :id, :uuid, allow_nil?: false
       get? true
       filter expr(id == ^arg(:id))
@@ -65,14 +117,126 @@ defmodule DecentralisedBookIndex.Metadata.Author do
         author = query.arguments.author
 
         DecentralisedBookIndex.Metadata.Author
-        |> Ash.Query.filter(author_alias_registry_id == ^author.author_alias_registry_id
-                            and id != ^author.id)
+        |> Ash.Query.filter(
+          author_alias_registry_id == ^author.author_alias_registry_id and
+            id != ^author.id
+        )
       end
     end
+
+    action :get_author_ids, :vector do
+      argument :author, :struct, allow_nil?: false
+
+      run fn input, _ ->
+        author = input.arguments.author
+
+        {:ok, ids} =
+          DecentralisedBookIndex.Metadata.Author
+          |> Ash.Query.filter(author_alias_registry_id == ^author.author_alias_registry_id)
+          |> Ash.Query.select([:id])
+          |> Ash.read()
+
+        {:ok, Enum.map(ids, & &1.id)}
+      end
+    end
+
+    read :search do
+      description "Return a list of Authors, optionally filtering by name."
+
+      argument :name, :ci_string do
+        description "Return Authors, which names includes the name."
+        constraints allow_empty?: true
+        default ""
+      end
+
+      filter expr(contains(name, ^arg(:name)))
+
+      pagination offset?: true, default_limit: 10
+    end
+
+    update :sync do
+      description "Sync the data for an existing record."
+      require_atomic? false
+
+      accept [
+        :id,
+        :name,
+        :description,
+        :avatar_url,
+        :author_alias_registry_id,
+        :inserted_at,
+        :updated_at,
+        :dbi_server_id
+      ]
+
+      change fn changeset, _ ->
+        registry_id = Ash.Changeset.get_attribute(changeset, :author_alias_registry_id)
+
+        if registry_id == nil do
+          {:ok, registry} = DecentralisedBookIndex.Metadata.create_author_alias_registry()
+
+          Ash.Changeset.force_change_attribute(changeset, :author_alias_registry_id, registry.id)
+        else
+          changeset
+        end
+      end
+    end
+
+    update :update do
+      primary? true
+      accept [:name, :description, :avatar_url, :author_alias_registry_id]
+      require_atomic? false
+
+      change fn changeset, _ ->
+        registry_id = Ash.Changeset.get_attribute(changeset, :author_alias_registry_id)
+
+        if registry_id == nil do
+          {:ok, registry} = DecentralisedBookIndex.Metadata.create_author_alias_registry()
+
+          Ash.Changeset.force_change_attribute(changeset, :author_alias_registry_id, registry.id)
+        else
+          changeset
+        end
+      end
+    end
+
+    update :assign_avatar_image do
+      accept [:avatar_url]
+    end
+
+    update :assign_dbi_server_id do
+      accept [:dbi_server_id]
+    end
+  end
+
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action(:get_author_ids) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:update) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:destroy) do
+      authorize_if actor_attribute_equals(:role, :admin)
+    end
   end
 
   attributes do
-    uuid_primary_key :id
+    uuid_primary_key :id, writable?: true
 
     attribute :name, :string do
       allow_nil? false
@@ -84,16 +248,39 @@ defmodule DecentralisedBookIndex.Metadata.Author do
       public? true
     end
 
-    timestamps()
+    attribute :avatar_url, :string do
+      allow_nil? true
+      public? true
+    end
+
+    timestamps do
+      writable? true
+      public? true
+    end
   end
 
   relationships do
-    belongs_to :author_alias_registry, Metadata.AuthorAliasRegistry do
-      attribute_writable? true
+    belongs_to :dbi_server, Metadata.DBIServer do
+      public? true
     end
 
-    belongs_to :author_role, Metadata.AuthorRole do
+    belongs_to :author_alias_registry, Metadata.AuthorAliasRegistry do
       attribute_writable? true
+      public? true
     end
+
+    has_many :author_role, Metadata.AuthorRole
+  end
+
+  calculations do
+    calculate :brief_description,
+              :string,
+              expr(
+                if(string_length(description) <= @brief_description_max_length) do
+                  description
+                else
+                  fragment("substr(?, 1, ?)", description, @brief_description_length) <> "..."
+                end
+              )
   end
 end

lib/decentralised_book_index/metadata/author_alias_registry.ex

@@ -2,7 +2,10 @@ defmodule DecentralisedBookIndex.Metadata.AuthorAliasRegistry do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    authorizers: [Ash.Policy.Authorizer]
+
+  alias DecentralisedBookIndex.Metadata
 
   postgres do
     table "author_alias_registries"
@@ -12,6 +15,14 @@ defmodule DecentralisedBookIndex.Metadata.AuthorAliasRegistry do
   actions do
     defaults [:read, :create, :update, :destroy]
 
+    create :sync_create do
+      accept [:id, :dbi_server_id]
+    end
+
+    update :sync do
+      accept [:id, :dbi_server_id]
+    end
+
     read :by_id do
       argument :id, :uuid, allow_nil?: false
       get? true
@@ -19,13 +30,37 @@ defmodule DecentralisedBookIndex.Metadata.AuthorAliasRegistry do
     end
   end
 
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:update) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:destroy) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+  end
+
   attributes do
-    uuid_primary_key :id
+    uuid_primary_key :id, writable?: true
 
     timestamps()
   end
 
   relationships do
+    belongs_to :dbi_server, Metadata.DBIServer
+
     has_many :authors, DecentralisedBookIndex.Metadata.Author
   end
 end

lib/decentralised_book_index/metadata/author_role.ex

@@ -2,27 +2,114 @@ defmodule DecentralisedBookIndex.Metadata.AuthorRole do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    extensions: [AshJsonApi.Resource],
+    authorizers: [Ash.Policy.Authorizer]
 
   alias DecentralisedBookIndex.Metadata
 
+  json_api do
+    type "author_role"
+  end
+
   postgres do
     table "author_role"
     repo DecentralisedBookIndex.Repo
+
+    references do
+      reference :book, index?: true, on_delete: :delete
+    end
+  end
+
+  resource do
+    description "A metadata of an author's role."
   end
 
   actions do
-    defaults [:read, :update, :destroy]
+    defaults [:destroy]
 
     create :create do
+      primary? true
+      accept [:id, :order, :role]
+      argument :author_id, :uuid, allow_nil?: false
+
+      change fn changeset, _ ->
+        author_id =
+          Map.get(changeset.arguments, :author_id, nil)
+
+        if author_id != nil do
+          {:ok, author} = DecentralisedBookIndex.Metadata.get_author_by_id(author_id)
+
+          Ash.Changeset.force_change_attribute(changeset, :author_id, author.id)
+        else
+          changeset
+        end
+      end
+    end
+
+    read :read do
+      description "Return a list of AuthorRoles."
+      primary? true
+    end
+
+    read :by_id do
+      description "Return the AuthorRole by its id."
+      argument :id, :uuid, allow_nil?: false
+      get? true
+      filter expr(id == ^arg(:id))
+    end
+
+    read :by_book_id do
+      description "Return the AuthorRole by its BookId."
+      argument :book_id, :uuid, allow_nil?: false
+      filter expr(book_id == ^arg(:book_id))
+    end
+
+    update :update do
       primary? true
       accept [:order, :role]
-      argument :author_id, :uuid
+      argument :author_id, :uuid, allow_nil?: false
+      require_atomic? false
+
+      change fn changeset, _ ->
+        author_id =
+          Map.get(changeset.arguments, :author_id, nil)
+
+        if author_id != nil do
+          {:ok, author} = DecentralisedBookIndex.Metadata.get_author_by_id(author_id)
+
+          Ash.Changeset.force_change_attribute(changeset, :author_id, author.id)
+        else
+          changeset
+        end
+      end
+    end
+  end
+
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:update) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:destroy) do
+      authorize_if actor_attribute_equals(:role, :moderator)
     end
   end
 
   attributes do
-    uuid_primary_key :id
+    uuid_primary_key :id, writable?: true
 
     attribute :role, :string do
       allow_nil? true
@@ -38,12 +125,15 @@ defmodule DecentralisedBookIndex.Metadata.AuthorRole do
   end
 
   relationships do
+    belongs_to :dbi_server, Metadata.DBIServer
+
     belongs_to :book, Metadata.Book do
       allow_nil? true
     end
 
-    has_one :author, Metadata.Author do
+    belongs_to :author, Metadata.Author do
       allow_nil? false
+      public? true
     end
   end
 end

lib/decentralised_book_index/metadata/book.ex

@@ -2,29 +2,99 @@ defmodule DecentralisedBookIndex.Metadata.Book do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    extensions: [AshJsonApi.Resource],
+    authorizers: [Ash.Policy.Authorizer]
 
   require Ash.Query
   alias DecentralisedBookIndex.Metadata
 
+  @brief_description_length 20
+  @brief_description_max_length @brief_description_length + 3
+
+  json_api do
+    type "book"
+  end
+
   postgres do
     table "books"
     repo DecentralisedBookIndex.Repo
+
+    custom_indexes do
+      index "title gin_trgm_ops", name: "book_title_gin_index", using: "GIN"
+    end
+  end
+
+  resource do
+    description "A book's metadata."
   end
 
   actions do
-    defaults [:read, :update, :destroy]
+    defaults [:read, :destroy]
 
     create :create do
       primary? true
-      accept [:title, :isbn, :description, :book_editions_registry_id]
+
+      accept [
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url,
+        :book_editions_registry_id,
+        :dbi_server_id
+      ]
+
+      argument :bids, {:array, :map}
       argument :author_roles, {:array, :map}
 
-      change fn changeset, _ ->
+      change fn changeset, context ->
+        actor = Map.get(context, :actor, nil)
+
         registry_id = Ash.Changeset.get_attribute(changeset, :book_editions_registry_id)
 
         if registry_id == nil do
-          {:ok, registry} = DecentralisedBookIndex.Metadata.create_book_editions_registry()
+          registry = DecentralisedBookIndex.Metadata.create_book_editions_registry!(actor: actor)
+
+          Ash.Changeset.force_change_attribute(changeset, :book_editions_registry_id, registry.id)
+        else
+          changeset
+        end
+      end
+
+      change manage_relationship(:bids, type: :direct_control, order_is_key: :order)
+      change manage_relationship(:author_roles, type: :direct_control, order_is_key: :order)
+    end
+
+    create :sync_create do
+      accept [
+        :id,
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url,
+        :book_editions_registry_id,
+        :inserted_at,
+        :updated_at,
+        :dbi_server_id
+      ]
+
+      argument :bids, {:array, :map}
+      argument :author_roles, {:array, :map}
+
+      change fn changeset, context ->
+        registry_id = Ash.Changeset.get_attribute(changeset, :book_editions_registry_id)
+
+        if registry_id == nil do
+          registry =
+            DecentralisedBookIndex.Metadata.create_book_editions_registry!(authorize?: false)
 
           Ash.Changeset.force_change_attribute(changeset, :book_editions_registry_id, registry.id)
         else
@@ -32,16 +102,27 @@ defmodule DecentralisedBookIndex.Metadata.Book do
         end
       end
 
+      change manage_relationship(:bids, type: :direct_control, order_is_key: :order)
       change manage_relationship(:author_roles, type: :direct_control, order_is_key: :order)
     end
 
     create :add_book_to_related_editions_registry do
-      accept [:title, :isbn, :description]
+      accept [
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url
+      ]
 
       argument :related_book_id, :uuid do
         allow_nil? false
       end
 
+      argument :bids, {:array, :map}
       argument :author_roles, {:array, :map}
 
       change fn changeset, context ->
@@ -52,19 +133,32 @@ defmodule DecentralisedBookIndex.Metadata.Book do
         else
           {:ok, related_book} = DecentralisedBookIndex.Metadata.get_book_by_id(related_book_id)
 
-          Ash.Changeset.force_change_attribute(changeset, :book_editions_registry_id, related_book.book_editions_registry_id)
+          Ash.Changeset.force_change_attribute(
+            changeset,
+            :book_editions_registry_id,
+            related_book.book_editions_registry_id
+          )
         end
       end
 
+      change manage_relationship(:bids, type: :direct_control, order_is_key: :order)
       change manage_relationship(:author_roles, type: :direct_control, order_is_key: :order)
     end
 
     read :by_id do
+      description "Return the Book by its id."
       argument :id, :uuid, allow_nil?: false
       get? true
       filter expr(id == ^arg(:id))
     end
 
+    read :by_bid do
+      argument :type, :string, allow_nil?: false
+      argument :bid, :string, allow_nil?: false
+      get? true
+      filter expr(exists(bids, type == ^arg(:type) and bid == ^arg(:bid)))
+    end
+
     read :get_alternative_editions do
       argument :book, :struct, allow_nil?: false
 
@@ -72,39 +166,237 @@ defmodule DecentralisedBookIndex.Metadata.Book do
         book = query.arguments.book
 
         DecentralisedBookIndex.Metadata.Book
-        |> Ash.Query.filter(book_editions_registry_id == ^book.book_editions_registry_id
-                            and id != ^book.id)
+        |> Ash.Query.filter(
+          book_editions_registry_id == ^book.book_editions_registry_id and
+            id != ^book.id
+        )
       end
     end
+
+    read :get_author_books do
+      argument :author, :struct, allow_nil?: false
+
+      prepare fn query, context ->
+        author = query.arguments.author
+
+        {:ok, author_ids} = Metadata.get_author_ids(author)
+
+        Metadata.Book
+        |> Ash.Query.filter(expr(exists(author_roles, author_id in ^author_ids)))
+      end
+    end
+
+    read :search do
+      description "Return a list of Books, optionally filtering by title."
+
+      argument :query, :ci_string do
+        description "Return Books, which titles includes the query."
+        constraints allow_empty?: true
+        default ""
+      end
+
+      filter expr(contains(title, ^arg(:query)))
+
+      pagination offset?: true, default_limit: 10
+    end
+
+    read :search_by_bid do
+      description "Return a list of Books, optionally filtering by BookId."
+
+      argument :type, :string, allow_nil?: false
+      argument :bid, :string, allow_nil?: false
+
+      filter expr(exists(bids, type == ^arg(:type) and contains(bid, ^arg(:bid))))
+
+      pagination offset?: true, default_limit: 10
+    end
+
+    update :update do
+      primary? true
+      require_atomic? false
+
+      accept [
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url,
+        :book_editions_registry_id
+      ]
+
+      argument :bids, {:array, :map}
+      argument :author_roles, {:array, :map}
+
+      change fn changeset, _ ->
+        registry_id = Ash.Changeset.get_attribute(changeset, :book_editions_registry_id)
+
+        if registry_id == nil do
+          {:ok, registry} = DecentralisedBookIndex.Metadata.create_book_editions_registry()
+
+          Ash.Changeset.force_change_attribute(changeset, :book_editions_registry_id, registry.id)
+        else
+          changeset
+        end
+      end
+
+      change manage_relationship(:bids, type: :direct_control, order_is_key: :order)
+      change manage_relationship(:author_roles, type: :direct_control, order_is_key: :order)
+    end
+
+    update :sync do
+      require_atomic? false
+
+      accept [
+        :id,
+        :title,
+        :description,
+        :format,
+        :language,
+        :page_count,
+        :published,
+        :publisher_id,
+        :cover_image_url,
+        :book_editions_registry_id,
+        :inserted_at,
+        :updated_at,
+        :dbi_server_id
+      ]
+
+      argument :bids, {:array, :map}
+      argument :author_roles, {:array, :map}
+
+      change fn changeset, _ ->
+        registry_id = Ash.Changeset.get_attribute(changeset, :book_editions_registry_id)
+
+        if registry_id == nil do
+          {:ok, registry} = DecentralisedBookIndex.Metadata.create_book_editions_registry()
+
+          Ash.Changeset.force_change_attribute(changeset, :book_editions_registry_id, registry.id)
+        else
+          changeset
+        end
+      end
+
+      change manage_relationship(:bids, type: :direct_control, order_is_key: :order)
+      change manage_relationship(:author_roles, type: :direct_control, order_is_key: :order)
+    end
+
+    update :assign_cover_image do
+      accept [:cover_image_url]
+    end
+
+    update :assign_dbi_server_id do
+      accept [:dbi_server_id]
+    end
+  end
+
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:update) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:destroy) do
+      authorize_if actor_attribute_equals(:role, :admin)
+    end
+  end
+
+  validations do
+    validate numericality(:page_count, greater_than: 0)
   end
 
   attributes do
-    uuid_primary_key :id
+    uuid_primary_key :id, writable?: true
 
     attribute :title, :string do
       allow_nil? false
       public? true
     end
 
-    attribute :isbn, :string do
+    attribute :description, :string do
       allow_nil? false
       public? true
     end
 
-    attribute :description, :string do
+    attribute :published, :date do
+      allow_nil? false
+      public? true
+    end
+
+    attribute :language, :string do
+      allow_nil? false
+      public? true
+    end
+
+    attribute :format, :string do
       allow_nil? false
       public? true
     end
 
-    timestamps()
+    attribute :page_count, :integer do
+      allow_nil? false
+      public? true
+    end
+
+    attribute :cover_image_url, :string do
+      allow_nil? true
+      public? true
+    end
+
+    timestamps do
+      writable? true
+      public? true
+    end
   end
 
   relationships do
-    belongs_to :book_editions_registry, Metadata.BookEditionsRegistry
+    belongs_to :dbi_server, Metadata.DBIServer do
+      public? true
+    end
+
+    belongs_to :book_editions_registry, Metadata.BookEditionsRegistry do
+      public? true
+    end
+
+    belongs_to :publisher, Metadata.Publisher do
+      allow_nil? false
+      public? true
+    end
 
     has_many :author_roles, Metadata.AuthorRole do
       sort order: :asc
       public? true
     end
+
+    has_many :bids, Metadata.BookId do
+      sort order: :asc
+      public? true
+    end
+  end
+
+  calculations do
+    calculate :brief_description,
+              :string,
+              expr(
+                if(string_length(description) <= @brief_description_max_length) do
+                  description
+                else
+                  fragment("substr(?, 1, ?)", description, @brief_description_length) <> "..."
+                end
+              )
   end
 end

lib/decentralised_book_index/metadata/book_editions_registry.ex

@@ -2,7 +2,10 @@ defmodule DecentralisedBookIndex.Metadata.BookEditionsRegistry do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    authorizers: [Ash.Policy.Authorizer]
+
+  alias DecentralisedBookIndex.Metadata
 
   postgres do
     table "book_editions_registries"
@@ -12,6 +15,14 @@ defmodule DecentralisedBookIndex.Metadata.BookEditionsRegistry do
   actions do
     defaults [:read, :create, :update, :destroy]
 
+    create :sync_create do
+      accept [:id, :dbi_server_id]
+    end
+
+    update :sync do
+      accept [:id, :dbi_server_id]
+    end
+
     read :by_id do
       argument :id, :uuid, allow_nil?: false
       get? true
@@ -19,13 +30,37 @@ defmodule DecentralisedBookIndex.Metadata.BookEditionsRegistry do
     end
   end
 
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:update) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:destroy) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+  end
+
   attributes do
-    uuid_primary_key :id
+    uuid_primary_key :id, writable?: true
 
     timestamps()
   end
 
   relationships do
-    has_many :authors, DecentralisedBookIndex.Metadata.Book
+    belongs_to :dbi_server, Metadata.DBIServer
+
+    has_many :books, DecentralisedBookIndex.Metadata.Book
   end
 end

lib/decentralised_book_index/metadata/book_id.ex

@@ -0,0 +1,109 @@
+defmodule DecentralisedBookIndex.Metadata.BookId do
+  use Ash.Resource,
+    otp_app: :decentralised_book_index,
+    domain: DecentralisedBookIndex.Metadata,
+    data_layer: AshPostgres.DataLayer,
+    extensions: [AshJsonApi.Resource],
+    authorizers: [Ash.Policy.Authorizer]
+
+  alias DecentralisedBookIndex.Metadata
+
+  json_api do
+    type "book_id"
+  end
+
+  postgres do
+    table "book_ids"
+    repo DecentralisedBookIndex.Repo
+
+    references do
+      reference :book, index?: true, on_delete: :delete
+    end
+
+    custom_indexes do
+      index "type gin_trgm_ops", name: "book_id_type_gin_index", using: "GIN"
+      index "bid gin_trgm_ops", name: "book_id_bid_gin_index", using: "GIN"
+    end
+  end
+
+  resource do
+    description "A book's identifier."
+  end
+
+  actions do
+    defaults [:destroy]
+
+    create :create do
+      primary? true
+      accept [:id, :type, :bid, :order]
+    end
+
+    update :update do
+      primary? true
+      accept [:id, :type, :bid, :order]
+    end
+
+    read :read do
+      description "Return a list of BookIds."
+      primary? true
+    end
+
+    read :by_id do
+      description "Return the BookId by its id."
+      argument :id, :uuid, allow_nil?: false
+      get? true
+      filter expr(id == ^arg(:id))
+    end
+  end
+
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:update) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:destroy) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+  end
+
+  attributes do
+    uuid_primary_key :id, writable?: true
+
+    attribute :type, :string do
+      allow_nil? false
+      public? true
+    end
+
+    attribute :bid, :string do
+      allow_nil? false
+      public? true
+    end
+
+    attribute :order, :integer do
+      allow_nil? false
+      public? true
+    end
+
+    timestamps()
+  end
+
+  relationships do
+    belongs_to :dbi_server, Metadata.DBIServer
+
+    belongs_to :book, Metadata.Book do
+      allow_nil? true
+    end
+  end
+end

lib/decentralised_book_index/metadata/dbi_server.ex

@@ -2,19 +2,84 @@ defmodule DecentralisedBookIndex.Metadata.DBIServer do
   use Ash.Resource,
     otp_app: :decentralised_book_index,
     domain: DecentralisedBookIndex.Metadata,
-    data_layer: AshPostgres.DataLayer
+    data_layer: AshPostgres.DataLayer,
+    authorizers: [Ash.Policy.Authorizer],
+    extensions: [AshJsonApi.Resource]
+
+  alias DecentralisedBookIndex.Metadata
+
+  json_api do
+    type "dbi_server"
+  end
 
   postgres do
     table "dbi_servers"
     repo DecentralisedBookIndex.Repo
+
+    custom_indexes do
+      index "name gin_trgm_ops", name: "server_name_gin_index", using: "GIN"
+    end
+  end
+
+  resource do
+    description "An DBIServer's metadata."
   end
 
   actions do
-    defaults [:read]
+    defaults [:read, :destroy]
+
+    create :create do
+      primary? true
+      accept [:name, :url, :sync_on?, :dbi_server_id]
+    end
+
+    create :sync_create do
+      accept [:id, :name, :url, :inserted_at, :updated_at, :dbi_server_id]
+    end
+
+    update :update do
+      primary? true
+      accept [:name, :url, :sync_on?]
+    end
+
+    update :sync do
+      accept [:name, :url, :inserted_at, :updated_at, :dbi_server_id]
+    end
+
+    read :by_id do
+      description "Return the DBIServer by its id."
+      argument :id, :uuid, allow_nil?: false
+      get? true
+      filter expr(id == ^arg(:id))
+    end
+
+    read :search do
+      description "Return a list of DBIServers, optionally filtering by name."
+
+      argument :name, :ci_string do
+        description "Return DBIServers, which names includes the name."
+        constraints allow_empty?: true
+        default ""
+      end
+
+      filter expr(contains(name, ^arg(:name)))
+
+      pagination offset?: true, default_limit: 10
+    end
+  end
+
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
   end
 
   attributes do
-    uuid_primary_key :id
+    uuid_primary_key :id, writable?: true
 
     attribute :name, :string do
       allow_nil? false
@@ -26,6 +91,30 @@ defmodule DecentralisedBookIndex.Metadata.DBIServer do
       public? true
     end
 
-    timestamps()
+    attribute :sync_on?, :boolean do
+      allow_nil? true
+      default false
+    end
+
+    timestamps do
+      writable? true
+      public? true
+    end
+  end
+
+  relationships do
+    belongs_to :dbi_server, Metadata.DBIServer do
+      public? true
+    end
+
+    has_many :author, Metadata.Author
+    has_many :author_alias_registries, Metadata.AuthorAliasRegistry
+    has_many :author_roles, Metadata.AuthorRole
+
+    has_many :books, Metadata.Book
+    has_many :bids, Metadata.BookId
+    has_many :book_editions_registries, Metadata.BookEditionsRegistry
+
+    has_many :publisher, Metadata.Publisher
   end
 end

lib/decentralised_book_index/metadata/publisher.ex

@@ -0,0 +1,124 @@
+defmodule DecentralisedBookIndex.Metadata.Publisher do
+  use Ash.Resource,
+    otp_app: :decentralised_book_index,
+    domain: DecentralisedBookIndex.Metadata,
+    data_layer: AshPostgres.DataLayer,
+    extensions: [AshJsonApi.Resource],
+    authorizers: [Ash.Policy.Authorizer]
+
+  require Ash.Query
+  alias DecentralisedBookIndex.Metadata
+
+  json_api do
+    type "publisher"
+  end
+
+  postgres do
+    table "publishers"
+    repo DecentralisedBookIndex.Repo
+
+    custom_indexes do
+      index "name gin_trgm_ops", name: "publisher_name_gin_index", using: "GIN"
+    end
+  end
+
+  resource do
+    description "An publisher's metadata."
+  end
+
+  actions do
+    defaults [:destroy]
+
+    create :create do
+      primary? true
+      accept [:name, :dbi_server_id]
+    end
+
+    create :sync_create do
+      accept [:id, :name, :inserted_at, :updated_at, :dbi_server_id]
+    end
+
+    read :read do
+      description "Return a list of Publishers."
+      primary? true
+    end
+
+    read :by_id do
+      description "Return the Publisher by its id."
+      argument :id, :uuid, allow_nil?: false
+      get? true
+      filter expr(id == ^arg(:id))
+    end
+
+    read :search do
+      description "Return a list of Publishers, optionally filtering by name."
+
+      argument :name, :ci_string do
+        description "Return Publishers, which names includes the name."
+        constraints allow_empty?: true
+        default ""
+      end
+
+      filter expr(contains(name, ^arg(:name)))
+
+      pagination offset?: true, default_limit: 10
+    end
+
+    update :update do
+      primary? true
+      accept [:name]
+    end
+
+    update :assign_dbi_server_id do
+      accept [:dbi_server_id]
+    end
+
+    update :sync do
+      accept [:name, :inserted_at, :updated_at, :dbi_server_id]
+    end
+  end
+
+  policies do
+    bypass actor_attribute_equals(:role, :admin) do
+      authorize_if always()
+    end
+
+    policy action_type(:read) do
+      authorize_if always()
+    end
+
+    policy action_type(:create) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:update) do
+      authorize_if actor_attribute_equals(:role, :moderator)
+    end
+
+    policy action_type(:destroy) do
+      authorize_if actor_attribute_equals(:role, :admin)
+    end
+  end
+
+  attributes do
+    uuid_primary_key :id, writable?: true
+
+    attribute :name, :string do
+      allow_nil? false
+      public? true
+    end
+
+    timestamps do
+      writable? true
+      public? true
+    end
+  end
+
+  relationships do
+    belongs_to :dbi_server, Metadata.DBIServer do
+      public? true
+    end
+
+    has_many :books, Metadata.Book
+  end
+end

lib/decentralised_book_index/release.ex

@@ -0,0 +1,28 @@
+defmodule DecentralisedBookIndex.Release do
+  @moduledoc """
+  Used for executing DB release tasks when run in production without Mix
+  installed.
+  """
+  @app :decentralised_book_index
+
+  def migrate do
+    load_app()
+
+    for repo <- repos() do
+      {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :up, all: true))
+    end
+  end
+
+  def rollback(repo, version) do
+    load_app()
+    {:ok, _, _} = Ecto.Migrator.with_repo(repo, &Ecto.Migrator.run(&1, :down, to: version))
+  end
+
+  defp repos do
+    Application.fetch_env!(@app, :ecto_repos)
+  end
+
+  defp load_app do
+    Application.load(@app)
+  end
+end

lib/decentralised_book_index/sync/api_clients/fetch_json.ex

@@ -0,0 +1,15 @@
+defmodule DecentralisedBookIndex.Sync.ApiClients.FetchJson do
+  def get(url) do
+    case Req.get(url) do
+      {:ok, data} ->
+        if data.status == 200 do
+          {:ok, data.body}
+        else
+          {:error, data}
+        end
+
+      {:error, message} ->
+        {:error, message}
+    end
+  end
+end

lib/decentralised_book_index/sync/api_clients/fetch_jsons.ex

@@ -0,0 +1,37 @@
+defmodule DecentralisedBookIndex.Sync.ApiClients.FetchJsons do
+  alias DecentralisedBookIndex.Sync.ApiClients.FetchJsons
+  alias DecentralisedBookIndex.Sync.ApiClients.FetchJson
+
+  require Logger
+
+  def get(url, mapper \\ &FetchJsons.get_data/1) do
+    query_results =
+      Stream.resource(
+        # Initial state:
+        fn -> url end,
+        fn
+          # Stop the stream if no more data
+          next when is_nil(next) ->
+            {:halt, nil}
+
+          next ->
+            case FetchJson.get(next) do
+              {:ok, page} ->
+                {mapper.(page["data"]), get_in(page, ["links", "next"])}
+
+              {:error, message} ->
+                Logger.error("FetchJsons error for #{url}: #{inspect(message)}")
+                {[], nil}
+            end
+        end,
+        fn _ -> :ok end
+      )
+      |> Enum.to_list()
+
+    {:ok, query_results}
+  end
+
+  def get_data(data) do
+    data
+  end
+end

lib/decentralised_book_index/sync/data_transformers/author_role_transformer.ex

@@ -0,0 +1,20 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.AuthorRoleTransformer do
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    attrs =
+      %{
+        id: get_in(json_body, ["id"]),
+        order: get_in(json_body, ["attributes", "order"]),
+        role: get_in(json_body, ["attributes", "role"]),
+        author_id: get_in(json_body, ["attributes", "author_id"])
+      }
+
+    {:ok, attrs}
+  end
+end

lib/decentralised_book_index/sync/data_transformers/author_roles_transformer.ex

@@ -0,0 +1,21 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.AuthorRolesTransformer do
+  alias DecentralisedBookIndex.Sync.DataTransformers.AuthorRoleTransformer
+
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    {:ok,
+     Enum.map(
+       json_body,
+       fn record ->
+         {:ok, record} = AuthorRoleTransformer.from_json(record)
+         record
+       end
+     )}
+  end
+end

lib/decentralised_book_index/sync/data_transformers/author_transformer.ex

@@ -0,0 +1,29 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.AuthorTransformer do
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    attrs =
+      %{
+        id: get_in(json_body, ["id"]),
+        name: get_in(json_body, ["attributes", "name"]),
+        description: get_in(json_body, ["attributes", "description"]),
+        avatar_url: get_in(json_body, ["attributes", "avatar_url"]),
+        inserted_at: get_in(json_body, ["attributes", "inserted_at"]),
+        updated_at: get_in(json_body, ["attributes", "updated_at"]),
+        # relationship
+        author_alias_registry_id: get_in(json_body, ["attributes", "author_alias_registry_id"]),
+        dbi_server_id: get_in(json_body, ["attributes", "dbi_server_id"])
+      }
+
+    if is_nil(attrs[:dbi_server_id]) do
+      {:ok, attrs |> Map.delete(:dbi_server_id)}
+    else
+      {:ok, attrs}
+    end
+  end
+end

lib/decentralised_book_index/sync/data_transformers/bid_transformer.ex

@@ -0,0 +1,20 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.BidTransformer do
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    attrs =
+      %{
+        id: get_in(json_body, ["id"]),
+        order: get_in(json_body, ["attributes", "order"]),
+        type: get_in(json_body, ["attributes", "type"]),
+        bid: get_in(json_body, ["attributes", "bid"])
+      }
+
+    {:ok, attrs}
+  end
+end

lib/decentralised_book_index/sync/data_transformers/bids_transformer.ex

@@ -0,0 +1,21 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.BidsTransformer do
+  alias DecentralisedBookIndex.Sync.DataTransformers.BidTransformer
+
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    {:ok,
+     Enum.map(
+       json_body,
+       fn record ->
+         {:ok, record} = BidTransformer.from_json(record)
+         record
+       end
+     )}
+  end
+end

lib/decentralised_book_index/sync/data_transformers/book_transformer.ex

@@ -0,0 +1,35 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.BookTransformer do
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    attrs =
+      %{
+        id: get_in(json_body, ["id"]),
+        title: get_in(json_body, ["attributes", "title"]),
+        description: get_in(json_body, ["attributes", "description"]),
+        cover_image_url: get_in(json_body, ["attributes", "cover_image_url"]),
+        format: get_in(json_body, ["attributes", "format"]),
+        language: get_in(json_body, ["attributes", "language"]),
+        published: get_in(json_body, ["attributes", "published"]),
+        page_count: get_in(json_body, ["attributes", "page_count"]),
+        publisher_id: get_in(json_body, ["attributes", "publisher_id"]),
+        inserted_at: get_in(json_body, ["attributes", "inserted_at"]),
+        updated_at: get_in(json_body, ["attributes", "updated_at"]),
+        # relationship
+        publisher_id: get_in(json_body, ["attributes", "publisher_id"]),
+        # relationship
+        dbi_server_id: get_in(json_body, ["attributes", "dbi_server_id"])
+      }
+
+    if is_nil(attrs[:dbi_server_id]) do
+      {:ok, attrs |> Map.delete(:dbi_server_id)}
+    else
+      {:ok, attrs}
+    end
+  end
+end

lib/decentralised_book_index/sync/data_transformers/dbi_server_transformer.ex

@@ -0,0 +1,27 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.DBIServerTransformer do
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    attrs =
+      %{
+        id: get_in(json_body, ["id"]),
+        name: get_in(json_body, ["attributes", "name"]),
+        url: get_in(json_body, ["attributes", "url"]),
+        inserted_at: get_in(json_body, ["attributes", "inserted_at"]),
+        updated_at: get_in(json_body, ["attributes", "updated_at"]),
+        # relationship
+        dbi_server_id: get_in(json_body, ["attributes", "dbi_server_id"])
+      }
+
+    if is_nil(attrs[:dbi_server_id]) do
+      {:ok, attrs |> Map.delete(:dbi_server_id)}
+    else
+      {:ok, attrs}
+    end
+  end
+end

lib/decentralised_book_index/sync/data_transformers/publisher_transformer.ex

@@ -0,0 +1,26 @@
+defmodule DecentralisedBookIndex.Sync.DataTransformers.PublisherTransformer do
+  def from_json(json_body) do
+    json_body =
+      if Map.has_key?(json_body, "data") do
+        json_body["data"]
+      else
+        json_body
+      end
+
+    attrs =
+      %{
+        id: get_in(json_body, ["id"]),
+        name: get_in(json_body, ["attributes", "name"]),
+        inserted_at: get_in(json_body, ["attributes", "inserted_at"]),
+        updated_at: get_in(json_body, ["attributes", "updated_at"]),
+        # relationship
+        dbi_server_id: get_in(json_body, ["attributes", "dbi_server_id"])
+      }
+
+    if is_nil(attrs[:dbi_server_id]) do
+      {:ok, attrs |> Map.delete(:dbi_server_id)}
+    else
+      {:ok, attrs}
+    end
+  end
+end

lib/decentralised_book_index/sync/sync/author_alias_registry_sync.ex

@@ -0,0 +1,31 @@
+defmodule DecentralisedBookIndex.Sync.AuthorAliasRegistrySync do
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Metadata.AuthorAliasRegistry
+
+  def create_update(attrs, server_id) do
+    case Metadata.get_author_alias_registry_by_id(attrs.id) do
+      {:ok, alias_registry} ->
+        attrs =
+          attrs
+          |> Map.delete(:id)
+          |> Map.put(:dbi_server_id, server_id)
+
+        alias_registry
+        |> Ash.Changeset.for_update(:sync, attrs)
+        |> Ash.update!(authorize?: false)
+
+        :ok
+
+      {:error, %Ash.Error.Query.NotFound{}} ->
+        attrs =
+          attrs
+          |> Map.put(:dbi_server_id, server_id)
+
+        AuthorAliasRegistry
+        |> Ash.Changeset.for_create(:sync_create, attrs)
+        |> Ash.create!(authorize?: false)
+
+        :ok
+    end
+  end
+end

lib/decentralised_book_index/sync/sync/author_sync.ex

@@ -0,0 +1,76 @@
+defmodule DecentralisedBookIndex.Sync.AuthorSync do
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Metadata.Author
+  alias DecentralisedBookIndex.Sync.AuthorAliasRegistrySync
+
+  def create_update(attrs, server_id) do
+    registry_info = sync_registry(attrs, server_id)
+
+    case Metadata.get_author_by_id(attrs.id) do
+      {:ok, author} ->
+        if not is_local(author) and is_new(attrs, author) do
+          attrs =
+            attrs
+            |> Map.delete(:id)
+            |> update_registry(registry_info)
+            |> Map.put_new(:dbi_server_id, server_id)
+
+          author
+          |> Ash.Changeset.for_update(:sync, attrs)
+          |> Ash.update!(authorize?: false)
+        end
+
+        :ok
+
+      {:error, %Ash.Error.Query.NotFound{}} ->
+        attrs =
+          attrs
+          |> update_registry(registry_info)
+          |> Map.put_new(:dbi_server_id, server_id)
+
+        Author
+        |> Ash.Changeset.for_create(:sync_create, attrs)
+        |> Ash.create!(authorize?: false)
+
+        :ok
+    end
+  end
+
+  defp sync_registry(attrs, server_id) do
+    id = Map.get(attrs, :author_alias_registry_id, nil)
+
+    if id != nil do
+      %{id: id}
+      |> AuthorAliasRegistrySync.create_update(server_id)
+
+      {:ok, id}
+    else
+      {:error, :no_author_alias_registry_id}
+    end
+  end
+
+  defp update_registry(attrs, registry_info) do
+    case registry_info do
+      {:ok, id} ->
+        attrs
+        |> Map.replace(:author_alias_registry_id, id)
+
+      {:error, _} ->
+        attrs
+        |> Map.delete(:author_alias_registry_id)
+    end
+  end
+
+  defp is_local(author) do
+    is_nil(author.dbi_server_id)
+  end
+
+  defp is_new(new_author, author) do
+    with {:ok, datetime, _offset} <- DateTime.from_iso8601(new_author[:updated_at]) do
+      DateTime.after?(datetime, author.updated_at)
+    else
+      {:error, reason} ->
+        false
+    end
+  end
+end

lib/decentralised_book_index/sync/sync/book_editions_registry_sync.ex

@@ -0,0 +1,31 @@
+defmodule DecentralisedBookIndex.Sync.BookEditionsRegistrySync do
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Metadata.BookEditionsRegistry
+
+  def create_update(attrs, server_id) do
+    case Metadata.get_book_editions_registry_by_id(attrs.id) do
+      {:ok, editions_registry} ->
+        attrs =
+          attrs
+          |> Map.delete(:id)
+          |> Map.put(:dbi_server_id, server_id)
+
+        editions_registry
+        |> Ash.Changeset.for_update(:sync, attrs)
+        |> Ash.update!(authorize?: false)
+
+        :ok
+
+      {:error, %Ash.Error.Query.NotFound{}} ->
+        attrs =
+          attrs
+          |> Map.put(:dbi_server_id, server_id)
+
+        BookEditionsRegistry
+        |> Ash.Changeset.for_create(:sync_create, attrs)
+        |> Ash.create!(authorize?: false)
+
+        :ok
+    end
+  end
+end

lib/decentralised_book_index/sync/sync/book_sync.ex

@@ -0,0 +1,77 @@
+defmodule DecentralisedBookIndex.Sync.BookSync do
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Metadata.Book
+  alias DecentralisedBookIndex.Sync.BookEditionsRegistrySync
+
+  def create_update(attrs, server_id) do
+    registry_info = sync_registry(attrs, server_id)
+
+    case Metadata.get_book_by_id(attrs.id) do
+      {:ok, book} ->
+
+        if not is_local(book) and is_new(attrs, book) do
+          attrs =
+            attrs
+            |> Map.delete(:id)
+            |> update_registry(registry_info)
+            |> Map.put_new(:dbi_server_id, server_id)
+
+          book
+          |> Ash.Changeset.for_update(:sync, attrs)
+          |> Ash.update!(authorize?: false)
+        end
+
+        :ok
+
+      {:error, %Ash.Error.Query.NotFound{}} ->
+        attrs =
+          attrs
+          |> update_registry(registry_info)
+          |> Map.put_new(:dbi_server_id, server_id)
+
+        Book
+        |> Ash.Changeset.for_create(:sync_create, attrs)
+        |> Ash.create!(authorize?: false)
+
+        :ok
+    end
+  end
+
+  defp sync_registry(attrs, server_id) do
+    id = Map.get(attrs, :book_editions_registry_id, nil)
+
+    if id != nil do
+      %{id: id}
+      |> BookEditionsRegistrySync.create_update(server_id)
+
+      {:ok, id}
+    else
+      {:error, :no_book_editions_registry_id}
+    end
+  end
+
+  defp update_registry(attrs, registry_info) do
+    case registry_info do
+      {:ok, id} ->
+        attrs
+        |> Map.replace(:book_editions_registry_id, id)
+
+      {:error, _} ->
+        attrs
+        |> Map.delete(:book_editions_registry_id)
+    end
+  end
+
+  defp is_local(book) do
+    is_nil(book.dbi_server_id)
+  end
+
+  defp is_new(new_book, book) do
+    with {:ok, datetime, _offset} <- DateTime.from_iso8601(new_book[:updated_at]) do
+      DateTime.after?(datetime, book.updated_at)
+    else
+      {:error, reason} ->
+        false
+    end
+  end
+end

lib/decentralised_book_index/sync/sync/dbi_server_sync.ex

@@ -0,0 +1,31 @@
+defmodule DecentralisedBookIndex.Sync.DBIServerSync do
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Metadata.DBIServer
+
+  def create_update(attrs, server_id) do
+    case Metadata.get_dbi_server_by_id(attrs.id) do
+      {:ok, dbi_server} ->
+        attrs =
+          attrs
+          |> Map.delete(:id)
+          |> Map.put(:dbi_server_id, server_id)
+
+        dbi_server
+        |> Ash.Changeset.for_update(:sync, attrs)
+        |> Ash.update!(authorize?: false)
+
+        :ok
+
+      {:error, %Ash.Error.Query.NotFound{}} ->
+        attrs =
+          attrs
+          |> Map.put(:dbi_server_id, server_id)
+
+	DBIServer
+        |> Ash.Changeset.for_create(:sync_create, attrs)
+        |> Ash.create!(authorize?: false)
+
+        :ok
+    end
+  end
+end

lib/decentralised_book_index/sync/sync/publisher_sync.ex

@@ -0,0 +1,46 @@
+defmodule DecentralisedBookIndex.Sync.PublisherSync do
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Metadata.Publisher
+
+  def create_update(attrs, server_id) do
+    case Metadata.get_publisher_by_id(attrs.id) do
+      {:ok, publisher} ->
+        if not is_local(publisher) and is_new(attrs, publisher) do
+          attrs =
+            attrs
+            |> Map.delete(:id)
+            |> Map.put_new(:dbi_server_id, server_id)
+
+          publisher
+          |> Ash.Changeset.for_update(:sync, attrs)
+          |> Ash.update!(authorize?: false)
+        end
+
+        :ok
+
+      {:error, %Ash.Error.Query.NotFound{}} ->
+        attrs =
+          attrs
+          |> Map.put_new(:dbi_server_id, server_id)
+
+        Publisher
+        |> Ash.Changeset.for_create(:sync_create, attrs)
+        |> Ash.create!(authorize?: false)
+
+        :ok
+    end
+  end
+
+  defp is_local(publisher) do
+    is_nil(publisher.dbi_server_id)
+  end
+
+  defp is_new(new_publisher, publisher) do
+    with {:ok, datetime, _offset} <- DateTime.from_iso8601(new_publisher[:updated_at]) do
+      DateTime.after?(datetime, publisher.updated_at)
+    else
+      {:error, reason} ->
+        false
+    end
+  end
+end

lib/decentralised_book_index/sync/sync_tasks/sync_authors_task.ex

@@ -0,0 +1,36 @@
+defmodule DecentralisedBookIndex.SyncTasks.SyncAuthorsTask do
+  alias DecentralisedBookIndex.Sync.ApiClients.FetchJsons
+  alias DecentralisedBookIndex.Sync.DataTransformers.AuthorTransformer
+  alias DecentralisedBookIndex.Sync.AuthorSync
+
+  alias DecentralisedBookIndex.Metadata.DBIServer
+
+  require Logger
+
+  def sync(%DBIServer{} = server, url_params \\ "") do
+    url = "#{server.url}/api/v1/json/authors#{url_params}"
+    FetchJsons.get(url, sync_author_closure(server))
+
+    server
+  end
+
+  def sync_author_chunk(json_chunk, server_id) do
+    for json <- json_chunk do
+      with {:ok, attrs} <- AuthorTransformer.from_json(json),
+           :ok <- AuthorSync.create_update(attrs, server_id) do
+        :ok
+      else
+        {:error, reason} ->
+          Logger.error("Pipeline error: #{inspect(reason)}")
+      end
+    end
+
+    []
+  end
+
+  def sync_author_closure(server) do
+    fn json_chunk ->
+      sync_author_chunk(json_chunk, server.id)
+    end
+  end
+end

lib/decentralised_book_index/sync/sync_tasks/sync_books_task.ex

@@ -0,0 +1,84 @@
+defmodule DecentralisedBookIndex.SyncTasks.SyncBooksTask do
+  alias DecentralisedBookIndex.Sync.ApiClients.FetchJson
+  alias DecentralisedBookIndex.Sync.ApiClients.FetchJsons
+  alias DecentralisedBookIndex.Sync.DataTransformers.BookTransformer
+  alias DecentralisedBookIndex.Sync.DataTransformers.BidsTransformer
+  alias DecentralisedBookIndex.Sync.DataTransformers.AuthorRolesTransformer
+  alias DecentralisedBookIndex.Sync.BookSync
+
+  alias DecentralisedBookIndex.Metadata.DBIServer
+
+  require Logger
+
+  def sync(%DBIServer{} = server, url_params \\ "") do
+    url = "#{server.url}/api/v1/json/books#{url_params}"
+    FetchJsons.get(url, sync_author_closure(server))
+
+    server
+  end
+
+  def sync_author_chunk(json_chunk, server_id) do
+    for json <- json_chunk do
+      with {:ok, attrs} <- BookTransformer.from_json(json),
+           {:ok, author_roles} <- get_author_roles(json),
+           {:ok, bids} <- get_bids(json),
+           attrs <- merge_relationships_attrs(attrs, bids, author_roles),
+           :ok <- BookSync.create_update(attrs, server_id) do
+        :ok
+      else
+        {:error, reason} ->
+          Logger.error("Pipeline error: #{inspect(reason)}")
+      end
+    end
+
+    []
+  end
+
+  def sync_author_closure(server) do
+    fn json_chunk ->
+      sync_author_chunk(json_chunk, server.id)
+    end
+  end
+
+  defp merge_relationships_attrs(attrs, bids, author_roles) do
+    attrs
+    |> Map.put(:bids, bids)
+    |> Map.put(:author_roles, author_roles)
+  end
+
+  defp get_author_roles_url(json) do
+    get_in(json, ["relationships", "author_roles", "links", "related"])
+  end
+
+  defp get_author_roles(json) do
+    url = get_author_roles_url(json)
+
+    with {:ok, json} <- FetchJson.get(url),
+         {:ok, roles} <- AuthorRolesTransformer.from_json(json) do
+      {:ok, roles}
+    else
+      {:error, reason} ->
+        Logger.error("Pipeline error: #{inspect(reason)}")
+
+        {:error, reason}
+    end
+  end
+
+  defp get_bids_url(json) do
+    get_in(json, ["relationships", "bids", "links", "related"])
+  end
+
+  defp get_bids(json) do
+    url = json |> get_bids_url()
+
+    with {:ok, json} <- FetchJson.get(url),
+         {:ok, bids} <- BidsTransformer.from_json(json) do
+      {:ok, bids}
+    else
+      {:error, reason} ->
+        Logger.error("Pipeline error: #{inspect(reason)}")
+
+        {:error, reason}
+    end
+  end
+end

lib/decentralised_book_index/sync/sync_tasks/sync_dbi_server_task.ex

@@ -0,0 +1,36 @@
+defmodule DecentralisedBookIndex.SyncTasks.SyncDBIServerTask do
+  alias DecentralisedBookIndex.Sync.ApiClients.FetchJsons
+  alias DecentralisedBookIndex.Sync.DataTransformers.DBIServerTransformer
+  alias DecentralisedBookIndex.Sync.DBIServerSync
+
+  alias DecentralisedBookIndex.Metadata.DBIServer
+
+  require Logger
+
+  def sync(%DBIServer{} = server, url_params \\ "") do
+    url = "#{server.url}/api/v1/json/servers#{url_params}"
+    FetchJsons.get(url, sync_closure(server))
+
+    server
+  end
+
+  def sync_chunk(json_chunk, server_id) do
+    for json <- json_chunk do
+      with {:ok, attrs} <- DBIServerTransformer.from_json(json),
+           :ok <- DBIServerSync.create_update(attrs, server_id) do
+        :ok
+      else
+        {:error, reason} ->
+          Logger.error("Pipeline error: #{inspect(reason)}")
+      end
+    end
+
+    []
+  end
+
+  def sync_closure(server) do
+    fn json_chunk ->
+      sync_chunk(json_chunk, server.id)
+    end
+  end
+end

lib/decentralised_book_index/sync/sync_tasks/sync_publishers_task.ex

@@ -0,0 +1,36 @@
+defmodule DecentralisedBookIndex.SyncTasks.SyncPublishersTask do
+  alias DecentralisedBookIndex.Sync.ApiClients.FetchJsons
+  alias DecentralisedBookIndex.Sync.DataTransformers.PublisherTransformer
+  alias DecentralisedBookIndex.Sync.PublisherSync
+
+  alias DecentralisedBookIndex.Metadata.DBIServer
+
+  require Logger
+
+  def sync(%DBIServer{} = server, url_params \\ "") do
+    url = "#{server.url}/api/v1/json/publishers#{url_params}"
+    FetchJsons.get(url, sync_closure(server))
+
+    server
+  end
+
+  def sync_chunk(json_chunk, server_id) do
+    for json <- json_chunk do
+      with {:ok, attrs} <- PublisherTransformer.from_json(json),
+           :ok <- PublisherSync.create_update(attrs, server_id) do
+        :ok
+      else
+        {:error, reason} ->
+          Logger.error("Pipeline error: #{inspect(reason)}")
+      end
+    end
+
+    []
+  end
+
+  def sync_closure(server) do
+    fn json_chunk ->
+      sync_chunk(json_chunk, server.id)
+    end
+  end
+end

lib/decentralised_book_index/sync/sync_tasks/sync_server_task.ex

@@ -0,0 +1,37 @@
+defmodule DecentralisedBookIndex.SyncTasks.SyncServerTask do
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Metadata.DBIServer
+
+  alias DecentralisedBookIndex.SyncTasks.SyncDBIServerTask
+  alias DecentralisedBookIndex.SyncTasks.SyncAuthorsTask
+  alias DecentralisedBookIndex.SyncTasks.SyncPublishersTask
+  alias DecentralisedBookIndex.SyncTasks.SyncBooksTask
+
+  def sync_all(last_sync_datetime \\ nil) do
+    {:ok, servers} = Metadata.list_dbi_server(authorize?: false)
+
+    params = params(last_sync_datetime)
+
+    for server <- servers do
+      if server.sync_on?, do: sync_one(server, params)
+    end
+
+    :ok
+  end
+
+  def sync_one(%DBIServer{} = server, url_params \\ "") do
+    server
+    |> SyncDBIServerTask.sync(url_params)
+    |> SyncAuthorsTask.sync(url_params)
+    |> SyncPublishersTask.sync(url_params)
+    |> SyncBooksTask.sync(url_params)
+
+    :ok
+  end
+
+  defp params(datetime) when is_nil(datetime), do: ""
+
+  defp params(datetime) when not is_nil(datetime) do
+    "?filter[updated_at][gte]=#{DateTime.to_iso8601(datetime)}"
+  end
+end

lib/decentralised_book_index/sync/sync_workers/sync_worker.ex

@@ -0,0 +1,21 @@
+defmodule DecentralisedBookIndex.SyncWorker do
+  use Oban.Worker,
+    queue: :default,
+    max_attempts: 2,
+    tags: ["sync", "cron"]
+
+  require Logger
+
+  alias DecentralisedBookIndex.SyncTasks.SyncServerTask
+
+  @impl Oban.Worker
+  def perform(%Oban.Job{args: args} = job) do
+    Logger.info("The cron job (#{job.id}) run SyncServerTask at #{DateTime.utc_now()} with args: #{inspect(args)}.")
+
+    result = SyncServerTask.sync_all()
+
+    Logger.info("The cron job (#{job.id}) is done.")
+
+    result
+  end
+end

lib/decentralised_book_index/sync/sync_workers/sync_worker_manual.ex

@@ -0,0 +1,31 @@
+defmodule DecentralisedBookIndex.SyncWorkerManual do
+  use Oban.Worker,
+    queue: :default,
+    max_attempts: 2,
+    tags: ["sync", "manual"]
+
+  require Logger
+
+  alias DecentralisedBookIndex.SyncTasks.SyncServerTask
+
+  @topic "task:events"
+
+  @impl Oban.Worker
+  def perform(%Oban.Job{args: args} = job) do
+    Logger.info("The manual job (#{job.id}) run SyncServerTask at #{DateTime.utc_now()} with args: #{inspect(args)}.")
+
+    result = SyncServerTask.sync_all()
+
+    Phoenix.PubSub.broadcast!(
+      DecentralisedBookIndex.PubSub,
+      @topic,
+      {:manual_sync_completed, result}
+    )
+
+    Logger.info("The manual job (#{job.id}) is done.")
+
+    result
+  end
+
+  def topic, do: @topic
+end

lib/decentralised_book_index_web.ex

@@ -89,6 +89,8 @@ defmodule DecentralisedBookIndexWeb do
       import Phoenix.HTML
       # Core UI components
       import DecentralisedBookIndexWeb.CoreComponents
+      use DecentralisedBookIndexWeb.Components.MyPartials
+      use DecentralisedBookIndexWeb.Components.MyComponents
 
       # Shortcut for generating JS commands
       alias Phoenix.LiveView.JS

lib/decentralised_book_index_web/ash_json_api_router.ex

@@ -1,5 +1,5 @@
 defmodule DecentralisedBookIndexWeb.AshJsonApiRouter do
   use AshJsonApi.Router,
-    domains: [],
+    domains: [Module.concat(["DecentralisedBookIndex.Metadata"])],
     open_api: "/open_api"
 end

lib/decentralised_book_index_web/auth_overrides.ex

@@ -9,10 +9,12 @@ defmodule DecentralisedBookIndexWeb.AuthOverrides do
 
   # For a complete reference, see https://hexdocs.pm/ash_authentication_phoenix/ui-overrides.html
 
-  # override AshAuthentication.Phoenix.Components.Banner do
-  #   set :image_url, "https://media.giphy.com/media/g7GKcSzwQfugw/giphy.gif"
-  #   set :text_class, "bg-red-500"
-  # end
+  override AshAuthentication.Phoenix.Components.Banner do
+    #   set :image_url, "https://media.giphy.com/media/g7GKcSzwQfugw/giphy.gif"
+    #   set :text_class, "bg-red-500"
+    set :image_url, nil
+    set :dark_image_url, nil
+  end
 
   # override AshAuthentication.Phoenix.Components.SignIn do
   #  set :show_banner, false

lib/decentralised_book_index_web/components/core_components.ex

@@ -50,7 +50,7 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
       data-cancel={JS.exec(@on_cancel, "phx-remove")}
       class="relative z-50 hidden"
     >
-      <div id={"#{@id}-bg"} class="bg-zinc-50/90 fixed inset-0 transition-opacity" aria-hidden="true" />
+      <div id={"#{@id}-bg"} class="bg-zinc-50/90 dark:bg-gray-900/90 fixed inset-0 transition-opacity" aria-hidden="true" />
       <div
         class="fixed inset-0 overflow-y-auto"
         aria-labelledby={"#{@id}-title"}
@@ -66,7 +66,7 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
               phx-window-keydown={JS.exec("data-cancel", to: "##{@id}")}
               phx-key="escape"
               phx-click-away={JS.exec("data-cancel", to: "##{@id}")}
-              class="shadow-zinc-700/10 ring-zinc-700/10 relative hidden rounded-2xl bg-white p-14 shadow-lg ring-1 transition"
+              class="shadow-zinc-700/10 ring-zinc-700/10 relative hidden rounded-2xl bg-white p-14 shadow-lg ring-1 transition dark:bg-gray-900"
             >
               <div class="absolute top-6 right-5">
                 <button
@@ -75,7 +75,7 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
                   class="-m-3 flex-none p-3 opacity-20 hover:opacity-40"
                   aria-label={gettext("close")}
                 >
-                  <.icon name="hero-x-mark-solid" class="h-5 w-5" />
+                  <.icon name="hero-x-mark-solid" class="h-5 w-5 dark:text-white" />
                 </button>
               </div>
               <div id={"#{@id}-content"}>
@@ -176,6 +176,69 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
     """
   end
 
+  attr :kind, :string,
+    values: ~w(base primary error),
+    default: "base"
+
+  attr :inverse, :boolean, default: false
+  attr :size, :string, values: ~w(sm xs md), default: "md"
+  attr :class, :string, default: ""
+  attr :rest, :global, include: ~w(navigate disabled patch)
+
+  slot :inner_block
+
+  def button_link(assigns) do
+    assigns =
+      assign(assigns, :theme, button_styles(assigns.kind, assigns.inverse, assigns.size))
+
+    ~H"""
+    <.link
+      class={[
+        @theme,
+        @rest[:disabled] && "opacity-60 grayscale pointer-events-none",
+        @class
+      ]}
+      {@rest}
+    >
+      {render_slot(@inner_block)}
+    </.link>
+    """
+  end
+
+  def button_styles(kind, inverse, size) do
+    theme =
+      case {kind, inverse} do
+        {"base", false} ->
+          "bg-gray-100"
+
+        {"base", true} ->
+          "border border-gray-500 text-gray-600"
+
+        {"primary", false} ->
+          "bg-primary-600 hover:bg-primary-700 text-white dark:text-white"
+
+        {"primary", true} ->
+          "border border-primary-700 text-primary-700 hover:bg-primary-50 font-semibold dark:text-white"
+
+        {"error", false} ->
+          "bg-error-700 hover:bg-error-800 text-white"
+
+        {"error", true} ->
+          "text-error-600 underline"
+
+        _ ->
+          ""
+      end
+
+    [
+      "phx-submit-loading:opacity-75 rounded-lg font-medium leading-none inline-block",
+      size == "md" && "py-3 px-5 text-sm",
+      size == "sm" && "py-2 px-3 text-sm",
+      size == "xs" && "py-2 px-2 text-xs",
+      theme
+    ]
+  end
+
   @doc """
   Renders a simple form.
 
@@ -202,9 +265,9 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
   def simple_form(assigns) do
     ~H"""
     <.form :let={f} for={@for} as={@as} {@rest}>
-      <div class="mt-10 space-y-8 bg-white">
+      <div class="mt-10 space-y-8 bg-white dark:bg-gray-900">
         {render_slot(@inner_block, f)}
-        <div :for={action <- @actions} class="mt-2 flex items-center justify-between gap-6">
+        <div :for={action <- @actions} class="mt-2 flex items-center justify-start gap-6">
           {render_slot(action, f)}
         </div>
       </div>
@@ -282,6 +345,7 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
     doc: "a form field struct retrieved from the form, for example: @form[:email]"
 
   attr :errors, :list, default: []
+  attr :show_errors?, :boolean, default: true
   attr :checked, :boolean, doc: "the checked flag for checkbox inputs"
   attr :prompt, :string, default: nil, doc: "the prompt for select inputs"
   attr :options, :list, doc: "the options to pass to Phoenix.HTML.Form.options_for_select/2"
@@ -310,7 +374,7 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
 
     ~H"""
     <div>
-      <label class="flex items-center gap-4 text-sm leading-6 text-zinc-600">
+      <label class="flex items-center gap-4 text-sm leading-6 text-zinc-600 dark:text-white">
         <input type="hidden" name={@name} value="false" disabled={@rest[:disabled]} />
         <input
           type="checkbox"
@@ -318,12 +382,14 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
           name={@name}
           value="true"
           checked={@checked}
-          class="rounded border-zinc-300 text-zinc-900 focus:ring-0"
+          class="rounded text-blue-600 bg-gray-100 border-gray-300 rounded-sm focus:ring-blue-500 dark:focus:ring-blue-600 dark:ring-offset-gray-800 focus:ring-2 dark:bg-gray-700 dark:border-gray-600"
           {@rest}
         />
         {@label}
       </label>
-      <.error :for={msg <- @errors}>{msg}</.error>
+      <%= if @show_errors? do %>
+        <.error :for={msg <- @errors}>{msg}</.error>
+      <% end %>
     </div>
     """
   end
@@ -335,14 +401,16 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
       <select
         id={@id}
         name={@name}
-        class="mt-2 block w-full rounded-md border border-gray-300 bg-white shadow-sm focus:border-zinc-400 focus:ring-0 sm:text-sm"
+        class="mt-2 block w-full rounded-md border border-gray-300 bg-white shadow-sm focus:border-zinc-400 focus:ring-0 sm:text-sm dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500"
         multiple={@multiple}
         {@rest}
       >
         <option :if={@prompt} value="">{@prompt}</option>
         {Phoenix.HTML.Form.options_for_select(@options, @value)}
       </select>
-      <.error :for={msg <- @errors}>{msg}</.error>
+      <%= if @show_errors? do %>
+        <.error :for={msg <- @errors}>{msg}</.error>
+      <% end %>
     </div>
     """
   end
@@ -355,13 +423,15 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
         id={@id}
         name={@name}
         class={[
-          "mt-2 block w-full rounded-lg text-zinc-900 focus:ring-0 sm:text-sm sm:leading-6 min-h-[6rem]",
+          "mt-2 block w-full rounded-lg text-zinc-900 focus:ring-0 sm:text-sm sm:leading-6 min-h-[6rem] dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500",
           @errors == [] && "border-zinc-300 focus:border-zinc-400",
-          @errors != [] && "border-rose-400 focus:border-rose-400"
+          @errors != [] && "border-rose-400 focus:border-rose-400 dark:border-rose-400 dark:focus:border-rose-400"
         ]}
         {@rest}
       >{Phoenix.HTML.Form.normalize_value("textarea", @value)}</textarea>
-      <.error :for={msg <- @errors}>{msg}</.error>
+      <%= if @show_errors? do %>
+        <.error :for={msg <- @errors}>{msg}</.error>
+      <% end %>
     </div>
     """
   end
@@ -377,13 +447,15 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
         id={@id}
         value={Phoenix.HTML.Form.normalize_value(@type, @value)}
         class={[
-          "mt-2 block w-full rounded-lg text-zinc-900 focus:ring-0 sm:text-sm sm:leading-6",
+          "mt-2 block w-full rounded-lg text-zinc-900 focus:ring-0 sm:text-sm sm:leading-6 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500",
           @errors == [] && "border-zinc-300 focus:border-zinc-400",
-          @errors != [] && "border-rose-400 focus:border-rose-400"
+          @errors != [] && "border-rose-400 focus:border-rose-400 dark:border-rose-400 dark:focus:border-rose-400"
         ]}
         {@rest}
       />
-      <.error :for={msg <- @errors}>{msg}</.error>
+      <%= if @show_errors? do %>
+        <.error :for={msg <- @errors}>{msg}</.error>
+      <% end %>
     </div>
     """
   end
@@ -396,7 +468,7 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
 
   def label(assigns) do
     ~H"""
-    <label for={@for} class="block text-sm font-semibold leading-6 text-zinc-800">
+    <label for={@for} class="block text-sm font-semibold leading-6 text-zinc-800 dark:text-white">
       {render_slot(@inner_block)}
     </label>
     """
@@ -429,10 +501,10 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
     ~H"""
     <header class={[@actions != [] && "flex items-center justify-between gap-6", @class]}>
       <div>
-        <h1 class="text-lg font-semibold leading-8 text-zinc-800">
+        <h1 class="text-lg font-semibold leading-8 text-zinc-800 dark:text-white">
           {render_slot(@inner_block)}
         </h1>
-        <p :if={@subtitle != []} class="mt-2 text-sm leading-6 text-zinc-600">
+        <p :if={@subtitle != []} class="mt-2 text-sm leading-6 text-zinc-600 dark:text-white">
           {render_slot(@subtitle)}
         </p>
       </div>
@@ -473,11 +545,11 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
       end
 
     ~H"""
-    <div class="overflow-y-auto px-4 sm:overflow-visible sm:px-0">
-      <table class="w-[40rem] mt-11 sm:w-full">
-        <thead class="text-sm text-left leading-6 text-zinc-500">
+    <div class="overflow-y-auto px-4 sm:overflow-visible sm:px-0 ">
+      <table class="w-full text-sm text-left text-gray-500 dark:text-gray-400 bg-white dark:bg-gray-800 relative shadow-md sm:rounded-lg overflow-hidden">
+        <thead class="text-xs text-gray-700 uppercase bg-gray-50 dark:bg-gray-700 dark:text-gray-400">
           <tr>
-            <th :for={col <- @col} class="p-0 pb-4 pr-6 font-normal">{col[:label]}</th>
+            <th :for={col <- @col} class="p-4 font-normal">{col[:label]}</th>
             <th :if={@action != []} class="relative p-0 pb-4">
               <span class="sr-only">{gettext("Actions")}</span>
             </th>
@@ -486,9 +558,9 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
         <tbody
           id={@id}
           phx-update={match?(%Phoenix.LiveView.LiveStream{}, @rows) && "stream"}
-          class="relative divide-y divide-zinc-100 border-t border-zinc-200 text-sm leading-6 text-zinc-700"
+          class="relative  divide-zinc-100 text-sm leading-6 text-zinc-700"
         >
-          <tr :for={row <- @rows} id={@row_id && @row_id.(row)} class="group hover:bg-zinc-50">
+          <tr :for={row <- @rows} id={@row_id && @row_id.(row)} class=" bg-white shadow-md dark:bg-gray-800 hover:bg-gray-100 dark:bg-gray-850 dark:hover:bg-gray-700">
             <td
               :for={{col, i} <- Enum.with_index(@col)}
               phx-click={@row_click && @row_click.(row)}
@@ -496,17 +568,17 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
             >
               <div class="block py-4 pr-6">
                 <span class="absolute -inset-y-px right-0 -left-4 group-hover:bg-zinc-50 sm:rounded-l-xl" />
-                <span class={["relative", i == 0 && "font-semibold text-zinc-900"]}>
+                <span class={["p-4 relative font-sm text-gray-500 dark:text-gray-400", i == 0 && "p-4 medium text-gray-900 whitespace-nowrap dark:text-white"]}>
                   {render_slot(col, @row_item.(row))}
                 </span>
               </div>
             </td>
             <td :if={@action != []} class="relative w-14 p-0">
-              <div class="relative whitespace-nowrap py-4 text-right text-sm font-medium">
+              <div class="relative whitespace-nowrap py-4 text-right text-sm font-medium px-2">
                 <span class="absolute -inset-y-px -right-4 left-0 group-hover:bg-zinc-50 sm:rounded-r-xl" />
                 <span
                   :for={action <- @action}
-                  class="relative ml-4 font-semibold leading-6 text-zinc-900 hover:text-zinc-700"
+                  class="relative ml-4 font-semibold leading-6 text-zinc-900 hover:text-zinc-700 dark:text-white dark:hover:text-white/90"
                 >
                   {render_slot(action, @row_item.(row))}
                 </span>
@@ -538,8 +610,8 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
     <div class="mt-14">
       <dl class="-my-4 divide-y divide-zinc-100">
         <div :for={item <- @item} class="flex gap-4 py-4 text-sm leading-6 sm:gap-8">
-          <dt class="w-1/4 flex-none text-zinc-500">{item.title}</dt>
-          <dd class="text-zinc-700">{render_slot(item)}</dd>
+          <dt class="w-1/4 flex-none text-zinc-500 dark:text-white">{item.title}</dt>
+          <dd class="text-zinc-700 dark:text-white">{render_slot(item)}</dd>
         </div>
       </dl>
     </div>
@@ -561,7 +633,7 @@ defmodule DecentralisedBookIndexWeb.CoreComponents do
     <div class="mt-16">
       <.link
         navigate={@navigate}
-        class="text-sm font-semibold leading-6 text-zinc-900 hover:text-zinc-700"
+        class="text-sm font-semibold leading-6 text-zinc-900 hover:text-zinc-700 dark:text-white dark:hover:text-white/70"
       >
         <.icon name="hero-arrow-left-solid" class="h-3 w-3" />
         {render_slot(@inner_block)}

lib/decentralised_book_index_web/components/layouts/app.html.heex

@@ -1,32 +1,17 @@
-<header class="px-4 sm:px-6 lg:px-8">
-  <div class="flex items-center justify-between border-b border-zinc-100 py-3 text-sm">
-    <div class="flex items-center gap-4">
-      <a href="/">
-        <img src={~p"/images/logo.svg"} width="36" />
-      </a>
-      <p class="bg-brand/5 text-brand rounded-full px-2 font-medium leading-6">
-        v{Application.spec(:phoenix, :vsn)}
-      </p>
+<div class="flex flex-col h-screen">
+  <header>
+    <.partial_navbar
+      page_title={assigns[:page_title]}
+      current_user={assigns[:current_user]}
+    />
+  </header>
+
+  <main class="px-4 pt-20 pb-2 sm:px-6 lg:px-8 flex-grow">
+    <div class="mx-auto max-w-4xl">
+      <.flash_group flash={@flash} />
+      {@inner_content}
     </div>
-    <div class="flex items-center gap-4 font-semibold leading-6 text-zinc-900">
-      <a href="https://twitter.com/elixirphoenix" class="hover:text-zinc-700">
-        @elixirphoenix
-      </a>
-      <a href="https://github.com/phoenixframework/phoenix" class="hover:text-zinc-700">
-        GitHub
-      </a>
-      <a
-        href="https://hexdocs.pm/phoenix/overview.html"
-        class="rounded-lg bg-zinc-100 px-2 py-1 hover:bg-zinc-200/80"
-      >
-        Get Started <span aria-hidden="true">&rarr;</span>
-      </a>
-    </div>
-  </div>
-</header>
-<main class="px-4 py-20 sm:px-6 lg:px-8">
-  <div class="mx-auto max-w-2xl">
-    <.flash_group flash={@flash} />
-    {@inner_content}
-  </div>
-</main>
+  </main>
+
+  <.partial_footer />
+</div>

lib/decentralised_book_index_web/components/layouts/root.html.heex

@@ -4,14 +4,14 @@
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <meta name="csrf-token" content={get_csrf_token()} />
-    <.live_title default="DecentralisedBookIndex" suffix=" · Phoenix Framework">
+    <.live_title default="DecentralisedBookIndex">
       {assigns[:page_title]}
     </.live_title>
     <link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />
     <script defer phx-track-static type="text/javascript" src={~p"/assets/app.js"}>
     </script>
   </head>
-  <body class="bg-white">
+  <body class="bg-white dark:bg-gray-900">
     {@inner_content}
   </body>
 </html>

lib/decentralised_book_index_web/components/my_components.ex

@@ -0,0 +1,39 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents do
+  alias DecentralisedBookIndexWeb.Components.MyComponents
+
+  defmacro __using__(_) do
+    quote do
+      import MyComponents.BookCard, only: [book_card: 1]
+      import MyComponents.BookSearch, only: [book_search: 1]
+
+      import MyComponents.AuthorCard, only: [author_card: 1]
+
+      import MyComponents.SearchResources, only: [search_resources: 1]
+      import MyComponents.JustSearchResources, only: [just_search_resources: 1]
+
+      import MyComponents.Pagination, only: [pagination: 1]
+
+      import MyComponents.Buttons,
+        only: [
+          success_button: 1,
+          primary_button: 1,
+          add_button_link: 1,
+          save_button: 1,
+          edit_button: 1,
+          cancel_button: 1
+        ]
+
+      alias MyComponents.SelectPublisher
+      import MyComponents.SelectedPublisher, only: [selected_publisher: 1]
+
+      alias MyComponents.SelectAuthor
+      import MyComponents.SelectedAuthor, only: [selected_author: 1]
+
+      alias MyComponents.SelectBookEdition
+      import MyComponents.SelectedBookEdition, only: [selected_book_edition: 1]
+
+      alias MyComponents.SelectAuthorAlias
+      import MyComponents.SelectedAuthorAlias, only: [selected_author_alias: 1]
+    end
+  end
+end

lib/decentralised_book_index_web/components/my_components/author_card.ex

@@ -0,0 +1,101 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.AuthorCard do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  alias DecentralisedBookIndex.Accounts.Role
+
+  attr(:author, :map, required: true)
+  attr :current_user, :map, default: nil
+
+  def author_card(assigns) do
+    ~H"""
+    <div class="w-full max-w-sm bg-white border border-gray-200 rounded-lg shadow-sm dark:bg-gray-800 dark:border-gray-700 mx-auto my-3">
+      <%= if @current_user != nil and Role.can_moderate?(@current_user.role) and is_nil(@author.dbi_server) do %>
+        <div class="flex justify-end px-4 pt-4">
+          <button
+            id={"dropdownButton#{@author.id}"}
+            data-dropdown-toggle={"dropdown#{@author.id}"}
+            class="inline-block text-gray-500 dark:text-gray-400 hover:bg-gray-100 dark:hover:bg-gray-700 focus:ring-4 focus:outline-none focus:ring-gray-200 dark:focus:ring-gray-700 rounded-lg text-sm p-1.5"
+            type="button"
+          >
+            <span class="sr-only">Open dropdown</span>
+            <svg
+              class="w-5 h-5"
+              aria-hidden="true"
+              xmlns="http://www.w3.org/2000/svg"
+              fill="currentColor"
+              viewBox="0 0 16 3"
+            >
+              <path d="M2 0a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3Zm6.041 0a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3ZM14 0a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3Z" />
+            </svg>
+          </button>
+          <!-- Dropdown menu -->
+          <div
+            id={"dropdown#{@author.id}"}
+            class="z-10 hidden text-base list-none bg-white divide-y divide-gray-100 rounded-lg shadow-sm w-44 dark:bg-gray-700"
+          >
+            <ul class="py-2" aria-labelledby="dropdownButton">
+              <li>
+                <.link
+                  navigate={~p"/authors/#{@author.id}/edit"}
+                  class="flex items-center block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-200 dark:hover:text-white"
+                >
+                  <svg
+                    xmlns="http://www.w3.org/2000/svg"
+                    class="h-4 w-4 mr-2 -ml-0.5"
+                    viewBox="0 0 20 20"
+                    fill="currentColor"
+                    aria-hidden="true"
+                  >
+                    <path d="M17.414 2.586a2 2 0 00-2.828 0L7 10.172V13h2.828l7.586-7.586a2 2 0 000-2.828z">
+                    </path>
+                    <path
+                      fill-rule="evenodd"
+                      d="M2 6a2 2 0 012-2h4a1 1 0 010 2H4v10h10v-4a1 1 0 112 0v4a2 2 0 01-2 2H4a2 2 0 01-2-2V6z"
+                      clip-rule="evenodd"
+                    >
+                    </path>
+                  </svg>
+                  Edit
+                </.link>
+              </li>
+            </ul>
+          </div>
+        </div>
+      <% end %>
+      <div class="flex flex-col items-center py-5 text-center">
+        <.link navigate={~p"/authors/#{@author.id}"}>
+          <%= if @author.avatar_url != nil do %>
+            <img
+              class="w-36 h-36 mb-3 rounded-full shadow-lg"
+              src={@author.avatar_url}
+              alt={"#{@author.name} image"}
+            />
+          <% else %>
+            <div class="relative w-36 h-36 overflow-hidden bg-gray-100 rounded-full dark:bg-gray-600">
+              <svg
+                class="absolute w-36 h-36 text-gray-400"
+                fill="currentColor"
+                viewBox="0 0 20 20"
+                xmlns="http://www.w3.org/2000/svg"
+              >
+                <path
+                  fill-rule="evenodd"
+                  d="M10 9a3 3 0 100-6 3 3 0 000 6zm-7 9a7 7 0 1114 0H3z"
+                  clip-rule="evenodd"
+                >
+                </path>
+              </svg>
+            </div>
+          <% end %>
+        </.link>
+
+        <.link navigate={~p"/authors/#{@author.id}"}>
+          <h5 class="mb-1 text-xl font-medium text-gray-900 dark:text-white">{@author.name}</h5>
+        </.link>
+        <span class="text-sm text-gray-500 dark:text-gray-400">{@author.brief_description}</span>
+      </div>
+    </div>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/book_card.ex

@@ -0,0 +1,99 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.BookCard do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  alias DecentralisedBookIndex.Accounts.Role
+
+  attr(:book, :map, required: true)
+  attr :current_user, :map, default: nil
+
+  def book_card(assigns) do
+    ~H"""
+    <div class="w-full max-w-sm bg-white border border-gray-200 rounded-lg shadow-sm dark:bg-gray-800 dark:border-gray-700 mx-auto my-3">
+      <%= if @current_user != nil and Role.can_moderate?(@current_user.role) and is_nil(@book.dbi_server) do %>
+        <div class="flex justify-end px-4 pt-4">
+          <button
+            id={"dropdownButton#{@book.id}"}
+            data-dropdown-toggle={"dropdown#{@book.id}"}
+            class="inline-block text-gray-500 dark:text-gray-400 hover:bg-gray-100 dark:hover:bg-gray-700 focus:ring-4 focus:outline-none focus:ring-gray-200 dark:focus:ring-gray-700 rounded-lg text-sm p-1.5"
+            type="button"
+          >
+            <span class="sr-only">Open dropdown</span>
+            <svg
+              class="w-5 h-5"
+              aria-hidden="true"
+              xmlns="http://www.w3.org/2000/svg"
+              fill="currentColor"
+              viewBox="0 0 16 3"
+            >
+              <path d="M2 0a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3Zm6.041 0a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3ZM14 0a1.5 1.5 0 1 1 0 3 1.5 1.5 0 0 1 0-3Z" />
+            </svg>
+          </button>
+          <!-- Dropdown menu -->
+          <div
+            id={"dropdown#{@book.id}"}
+            class="z-10 hidden text-base list-none bg-white divide-y divide-gray-100 rounded-lg shadow-sm w-44 dark:bg-gray-700"
+          >
+            <ul class="py-2" aria-labelledby="dropdownButton">
+              <li>
+                <.link
+                  navigate={~p"/books/#{@book.id}/edit"}
+                  class="flex items-center block px-4 py-2 text-sm text-gray-700 hover:bg-gray-100 dark:hover:bg-gray-600 dark:text-gray-200 dark:hover:text-white"
+                >
+                  <svg
+                    xmlns="http://www.w3.org/2000/svg"
+                    class="h-4 w-4 mr-2 -ml-0.5"
+                    viewBox="0 0 20 20"
+                    fill="currentColor"
+                    aria-hidden="true"
+                  >
+                    <path d="M17.414 2.586a2 2 0 00-2.828 0L7 10.172V13h2.828l7.586-7.586a2 2 0 000-2.828z">
+                    </path>
+                    <path
+                      fill-rule="evenodd"
+                      d="M2 6a2 2 0 012-2h4a1 1 0 010 2H4v10h10v-4a1 1 0 112 0v4a2 2 0 01-2 2H4a2 2 0 01-2-2V6z"
+                      clip-rule="evenodd"
+                    >
+                    </path>
+                  </svg>
+                  Edit
+                </.link>
+              </li>
+            </ul>
+          </div>
+        </div>
+      <% end %>
+      <div class="flex flex-col items-center py-5 text-center">
+        <.link navigate={~p"/books/#{@book.id}"}>
+          <%= if @book.cover_image_url != nil do %>
+            <img class="w-36 mb-3 shadow-lg" src={@book.cover_image_url} alt={"#{@book.title} image"} />
+          <% else %>
+            <div class="relative w-36 h-36 overflow-hidden">
+              <svg
+                class="w-36 h-36 text-gray-800 dark:text-white"
+                aria-hidden="true"
+                xmlns="http://www.w3.org/2000/svg"
+                width="24"
+                height="24"
+                fill="currentColor"
+                viewBox="0 0 24 24"
+              >
+                <path
+                  fill-rule="evenodd"
+                  d="M6 2a2 2 0 0 0-2 2v15a3 3 0 0 0 3 3h12a1 1 0 1 0 0-2h-2v-2h2a1 1 0 0 0 1-1V4a2 2 0 0 0-2-2h-8v16h5v2H7a1 1 0 1 1 0-2h1V2H6Z"
+                  clip-rule="evenodd"
+                />
+              </svg>
+            </div>
+          <% end %>
+        </.link>
+
+        <.link navigate={~p"/books/#{@book.id}"}>
+          <h5 class="mb-1 text-xl font-medium text-gray-900 dark:text-white">{@book.title}</h5>
+        </.link>
+        <span class="text-sm text-gray-500 dark:text-gray-400">{@book.brief_description}</span>
+      </div>
+    </div>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/book_search.ex

@@ -0,0 +1,99 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.BookSearch do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  alias DecentralisedBookIndex.Accounts.Role
+
+  attr :search_query, :string, default: ""
+  attr :search_mode, :string, default: "title"
+  attr :search_mode_options, :list, required: true
+  attr :select_options, :list, required: true
+  attr :selected_option, :string, required: true
+
+  attr :current_user, :map, default: nil
+
+  def book_search(assigns) do
+    ~H"""
+    <div class="bg-white shadow-md dark:bg-gray-800 sm:rounded-lg">
+      <div class="flex items-center justify-center p-4 flex-row space-y-0 space-x-4">
+        <div class="w-full grow">
+          <form class="flex items-center" phx-change="search" phx-submit="search">
+            <label for="simple-search" class="sr-only">Search</label>
+            <div class="relative w-full">
+              <div class="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
+                <svg aria-hidden="true" class="w-5 h-5 text-gray-500 dark:text-gray-400" fill="currentColor" viewbox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
+                  <path fill-rule="evenodd" d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z" clip-rule="evenodd" />
+                </svg>
+              </div>
+              <input name="query" type="text" phx-debounce="300" autocomplete="off" id="simple-search" class="block w-full p-2 pl-10 text-sm text-gray-900 border border-gray-300 rounded-lg bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500" placeholder="Search" value={@search_query}>
+            </div>
+          </form>
+        </div>
+          <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
+            <.link patch={~p"/books/new"} class="flex-shrink-0 my-auto">
+              <button type="button" class="flex items-center justify-between px-4 py-2 text-sm font-medium text-black dark:text-white rounded-lg bg-primary-700 hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 dark:bg-primary-600 dark:hover:bg-primary-700 focus:outline-none dark:focus:ring-primary-800">
+                <svg class="h-3.5 w-3.5 mr-2" fill="currentColor" viewbox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
+                  <path clip-rule="evenodd" fill-rule="evenodd" d="M10 3a1 1 0 011 1v5h5a1 1 0 110 2h-5v5a1 1 0 11-2 0v-5H4a1 1 0 110-2h5V4a1 1 0 011-1z" />
+                </svg>
+                Add book
+              </button>
+            </.link>
+          <% end %>
+	        <.dropdown_settings
+            search_mode={@search_mode}
+            search_mode_options={@search_mode_options}
+            select_options={@select_options}
+            selected_option={@selected_option}
+          />
+      </div>
+    </div>
+    """
+  end
+
+  attr :search_mode, :string, default: "title"
+  attr :search_mode_options, :list, required: true
+  attr :select_options, :list, required: true
+  attr :selected_option, :string, required: true
+
+  def dropdown_settings(assigns) do
+    ~H"""
+    <div class="flex justify-end px-4">
+        <button id="dropdownButtonSearchBook" data-dropdown-toggle="dropdownSearchBook" class="inline-block text-gray-500 dark:text-gray-400 hover:bg-gray-100 dark:hover:bg-gray-700 focus:ring-4 focus:outline-none focus:ring-gray-200 dark:focus:ring-gray-700 rounded-lg text-sm p-1.5" type="button">
+            <span class="sr-only">Open dropdown</span>
+            <svg class="w-5 h-5 text-gray-800 dark:text-white" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
+                <path stroke="currentColor" stroke-linecap="round" stroke-width="2" d="M20 6H10m0 0a2 2 0 1 0-4 0m4 0a2 2 0 1 1-4 0m0 0H4m16 6h-2m0 0a2 2 0 1 0-4 0m4 0a2 2 0 1 1-4 0m0 0H4m16 6H10m0 0a2 2 0 1 0-4 0m4 0a2 2 0 1 1-4 0m0 0H4"/>
+            </svg>
+        </button>
+        <!-- Dropdown menu -->
+        <div id="dropdownSearchBook" class="z-10 hidden text-base list-none bg-white rounded-lg shadow-sm w-64 dark:bg-gray-700 p-2 flex flex-col gap-2">
+          <div class="flex items-center space-x-3 md:w-auto">
+            <form phx-change="change-search-mode" class="w-full">
+            <select name="search_mode" id="search_mode" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500">
+              <%= for {name, value} <- @search_mode_options do %>
+                <%= if value == @search_mode do %>
+                  <option value={value} selected>{name}</option>
+                <% else %>
+                  <option value={value}>{name}</option>
+                <% end %>
+              <% end %>
+            </select>
+            </form>
+          </div>
+          <div class="flex items-center space-x-3 md:w-auto">
+            <form phx-change="change-sort" class="w-full">
+            <select name="sort_by" id="sort_by" class="bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500">
+              <%= for {name, value} <- @select_options do %>
+                <%= if value == @selected_option do %>
+                  <option value={value} selected>{name}</option>
+                <% else %>
+                  <option value={value}>{name}</option>
+                <% end %>
+              <% end %>
+            </select>
+            </form>
+          </div>
+        </div>
+    </div>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/buttons.ex

@@ -0,0 +1,184 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.Buttons do
+  use Phoenix.Component
+
+  import DecentralisedBookIndexWeb.CoreComponents
+
+  @doc """
+  Renders a success button.
+
+  ## Examples
+
+      <.success_button>Send!</.success_button>
+      <.success_button phx-click="go" class="ml-2">Send!</.success_button>
+  """
+  attr :type, :string, default: nil
+  attr :class, :string, default: nil
+  attr :rest, :global, include: ~w(disabled form name value)
+
+  slot :inner_block, required: true
+
+  def success_button(assigns) do
+    ~H"""
+    <button
+      type={@type}
+      class={[
+        "phx-submit-loading:opacity-75 rounded-lg py-2 px-3 focus:outline-none text-white bg-green-700 hover:bg-green-800 focus:ring-4 focus:ring-green-300 font-medium rounded-lg text-sm px-5 py-2.5 me-2 mb-2 dark:bg-green-600 dark:hover:bg-green-700 dark:focus:ring-green-800",
+        "text-sm font-semibold leading-6 text-white active:text-white/80",
+        @class
+      ]}
+      {@rest}
+    >
+      {render_slot(@inner_block)}
+    </button>
+    """
+  end
+
+  @doc """
+  Renders a primary button.
+
+  ## Examples
+
+      <.primary_button>Send!</.primary_button>
+      <.primary_button phx-click="go" class="ml-2">Send!</.primary_button>
+  """
+  attr :type, :string, default: nil
+  attr :class, :string, default: nil
+  attr :rest, :global, include: ~w(disabled form name value)
+
+  slot :inner_block, required: true
+
+  def primary_button(assigns) do
+    ~H"""
+    <button
+      type={@type}
+      class={[
+        "phx-submit-loading:opacity-75 rounded-lg py-2 px-3 text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 mb-2 bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-blue-800",
+        "text-sm font-semibold leading-6 text-white active:text-white/80",
+        @class
+      ]}
+      {@rest}
+    >
+      {render_slot(@inner_block)}
+    </button>
+    """
+  end
+
+  attr :type, :string, default: nil
+  attr :class, :string, default: nil
+  attr :rest, :global, include: ~w(disabled form name value)
+
+  slot :inner_block, required: true
+
+  def add_button_link(assigns) do
+    ~H"""
+    <.link
+      class={[
+        "phx-submit-loading:opacity-75 rounded-lg py-2 px-3 text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 mb-2 bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-blue-800",
+        "text-sm font-semibold leading-6 text-white active:text-white/80",
+        "flex items-center gap-1",
+        @class
+      ]}
+      {@rest}
+    >
+      <svg
+        class="w-6 h-6 text-white dark:text-white"
+        aria-hidden="true"
+        xmlns="http://www.w3.org/2000/svg"
+        width="24"
+        height="24"
+        fill="none"
+        viewBox="0 0 24 24"
+      >
+        <path
+          stroke="currentColor"
+          stroke-linecap="round"
+          stroke-linejoin="round"
+          stroke-width="2"
+          d="M5 12h14m-7 7V5"
+        />
+      </svg>
+      {render_slot(@inner_block)}
+    </.link>
+    """
+  end
+
+  attr :type, :string, default: nil
+  attr :class, :string, default: nil
+  attr :rest, :global, include: ~w(disabled form name value)
+
+  slot :inner_block, required: true
+
+  def save_button(assigns) do
+    ~H"""
+    <.success_button
+      type={@type}
+      class={[
+        "phx-submit-loading:opacity-75 rounded-lg py-2 px-3 text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 mb-2 bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-blue-800",
+        "text-sm font-semibold leading-6 text-white active:text-white/80",
+        "flex items-center gap-1",
+        @class
+      ]}
+      {@rest}
+    >
+      <svg class="w-6 h-6 dark:text-white" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 24 24">
+        <path fill-rule="evenodd" d="M5 3a2 2 0 0 0-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2V7.414A2 2 0 0 0 20.414 6L18 3.586A2 2 0 0 0 16.586 3H5Zm3 11a1 1 0 0 1 1-1h6a1 1 0 0 1 1 1v6H8v-6Zm1-7V5h6v2a1 1 0 0 1-1 1h-4a1 1 0 0 1-1-1Z" clip-rule="evenodd"/>
+        <path fill-rule="evenodd" d="M14 17h-4v-2h4v2Z" clip-rule="evenodd"/>
+      </svg>
+      {render_slot(@inner_block)}
+    </.success_button>
+    """
+  end
+
+  attr :type, :string, default: nil
+  attr :class, :string, default: nil
+  attr :rest, :global, include: ~w(disabled form name value)
+
+  slot :inner_block, required: true
+
+  def edit_button(assigns) do
+    ~H"""
+    <.primary_button
+      type={@type}
+      class={[
+        "phx-submit-loading:opacity-75 rounded-lg py-2 px-3 text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 mb-2 bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-blue-800",
+        "text-sm font-semibold leading-6 text-white active:text-white/80",
+        "flex items-center gap-1",
+        @class
+      ]}
+      {@rest}
+    >
+      <svg xmlns="http://www.w3.org/2000/svg" class="h-4 w-4 mr-2 -ml-0.5" viewBox="0 0 20 20" fill="currentColor" aria-hidden="true">
+        <path d="M17.414 2.586a2 2 0 00-2.828 0L7 10.172V13h2.828l7.586-7.586a2 2 0 000-2.828z"></path>
+        <path fill-rule="evenodd" d="M2 6a2 2 0 012-2h4a1 1 0 010 2H4v10h10v-4a1 1 0 112 0v4a2 2 0 01-2 2H4a2 2 0 01-2-2V6z" clip-rule="evenodd"></path>
+      </svg>
+      {render_slot(@inner_block)}
+    </.primary_button>
+    """
+  end
+
+  attr :type, :string, default: nil
+  attr :class, :string, default: nil
+  attr :rest, :global, include: ~w(disabled form name value)
+
+  slot :inner_block, required: true
+
+  def cancel_button(assigns) do
+    ~H"""
+    <.primary_button
+      type={@type}
+      class={[
+        "phx-submit-loading:opacity-75 rounded-lg py-2 px-3 text-white bg-blue-700 hover:bg-blue-800 focus:ring-4 focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 mb-2 bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-blue-800",
+        "text-sm font-semibold leading-6 text-white active:text-white/80",
+        "flex items-center gap-1",
+        @class
+      ]}
+      {@rest}
+    >
+      <svg class="w-6 h-6 dark:text-white" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
+        <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18 17.94 6M18 18 6.06 6"/>
+      </svg>
+      {render_slot(@inner_block)}
+    </.primary_button>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/just_search_resources.ex

@@ -0,0 +1,48 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.JustSearchResources do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  attr :search_query, :string, default: ""
+  attr :select_options, :list, required: true
+  attr :selected_option, :string, required: true
+  attr :current_user, :map, default: nil
+
+  attr :search_placeholder, :string, default: "Search by name"
+
+  def just_search_resources(assigns) do
+    ~H"""
+    <div class="relative bg-white shadow-md dark:bg-gray-800 sm:rounded-lg">
+      <div class="flex flex-col items-center justify-between p-4 space-y-3 md:flex-row md:space-y-0 md:space-x-4">
+        <div class="w-full grow">
+          <form class="flex items-center" phx-change="search" phx-submit="search">
+            <label for="simple-search" class="sr-only">Search</label>
+            <div class="relative w-full">
+              <div class="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
+                <svg aria-hidden="true" class="w-5 h-5 text-gray-500 dark:text-gray-400" fill="currentColor" viewbox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
+                  <path fill-rule="evenodd" d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z" clip-rule="evenodd" />
+                </svg>
+              </div>
+              <input name="query" type="text" phx-debounce="300" autocomplete="off" id="simple-search" class="block w-full p-2 pl-10 text-sm text-gray-900 border border-gray-300 rounded-lg bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500" placeholder={@search_placeholder} value={@search_query}>
+            </div>
+          </form>
+        </div>
+        <div class="flex flex-col items-stretch justify-end flex-shrink-0 w-full space-y-2 md:w-auto md:flex-row md:space-y-0 md:items-center md:space-x-3">
+          <div class="flex items-center w-full space-x-3 md:w-auto">
+            <form phx-change="change-sort" class="w-full">
+            <select name="sort_by" id="sort_by" class="grow bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500">
+              <%= for {name, value} <- @select_options do %>
+                <%= if value == @selected_option do %>
+                  <option value={value} selected>{name}</option>
+                <% else %>
+                  <option value={value}>{name}</option>
+                <% end %>
+              <% end %>
+            </select>
+            </form>
+          </div>
+        </div>
+      </div>
+    </div>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/pagination.ex

@@ -0,0 +1,135 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.Pagination do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  attr :endpoint, :string, required: true
+  attr :page, :map, required: true
+  attr :page_params, :list, required: true
+  attr :params, :list, required: true
+
+  def pagination(assigns) do
+    assigns = assign(assigns, :current_page_number, get_current_page(assigns.page))
+
+    ~H"""
+    <%= if AshPhoenix.LiveView.prev_page?(@page) or AshPhoenix.LiveView.next_page?(@page) do %>
+      <nav aria-label="Page navigation example" class="flex justify-center">
+        <ul class="inline-flex -space-x-px text-base h-10 mx-auto">
+          <li class="pl-auto">
+            <.button_link
+              data-role="previous-page"
+              kind="primary"
+              inverse
+              patch={"#{@endpoint}?#{page_params_which(@page, @params, "prev")}"}
+              class="flex items-center justify-center px-4 h-10 ms-0 leading-tight text-gray-500 bg-white border border-e-0 border-gray-300 rounded-s-lg hover:bg-gray-100 hover:text-gray-700 dark:bg-gray-800 dark:border-gray-700 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white"
+              disabled={!AshPhoenix.LiveView.prev_page?(@page)}
+            >
+              Previous
+            </.button_link>
+          </li>
+          <%= for number <- get_page_numbers(@page) do %>
+            <%= if number == @current_page_number do %>
+              <li>
+                <a
+                  href={"#{@endpoint}?#{page_params_number(@page_params, @params, number)}"}
+                  aria-current="page"
+                  class="flex items-center justify-center px-4 h-10 text-blue-600 border border-gray-300 bg-blue-50 hover:bg-blue-100 hover:text-blue-700 dark:border-gray-700 dark:bg-gray-700 dark:text-white"
+                >
+                  {number}
+                </a>
+              </li>
+            <% else %>
+              <li>
+                <a
+                  href={"#{@endpoint}?#{page_params_number(@page_params, @params, number)}"}
+                  class="flex items-center justify-center px-4 h-10 leading-tight text-gray-500 bg-white border border-gray-300 hover:bg-gray-100 hover:text-gray-700 dark:bg-gray-800 dark:border-gray-700 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white"
+                >
+                  {number}
+                </a>
+              </li>
+            <% end %>
+          <% end %>
+          <li>
+            <.button_link
+              data-role="next-page"
+              kind="primary"
+              inverse
+              patch={"#{@endpoint}?#{page_params_which(@page, @params, "next")}"}
+              class="flex items-center justify-center px-4 h-10 leading-tight text-gray-500 bg-white border border-gray-300 rounded-e-lg hover:bg-gray-100 hover:text-gray-700 dark:bg-gray-800 dark:border-gray-700 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white"
+              disabled={!AshPhoenix.LiveView.next_page?(@page)}
+            >
+              Next
+            </.button_link>
+          </li>
+        </ul>
+      </nav>
+      <% end %>
+    """
+  end
+
+  attr :kind, :string,
+    values: ~w(base primary error),
+    default: "base"
+
+  attr :inverse, :boolean, default: false
+  attr :class, :string, default: ""
+  attr :rest, :global, include: ~w(navigate disabled patch)
+
+  slot :inner_block
+
+  defp button_link(assigns) do
+    ~H"""
+    <.link
+      class={[
+        @rest[:disabled] && "opacity-80 pointer-events-none",
+        @class
+      ]}
+      {@rest}
+    >
+      {render_slot(@inner_block)}
+    </.link>
+    """
+  end
+
+  defp get_page_numbers(pages) do
+    %{count: count, limit: limit} = pages
+
+    max_number =
+      (count / limit)
+      |> :math.ceil()
+      |> Kernel.trunc()
+
+    1..max_number
+  end
+
+  defp get_current_page(pages) do
+    %{offset: offset, limit: limit} = pages
+
+    Kernel.trunc(offset / limit) + 1
+  end
+
+  def page_params_which(page, params, which) do
+    page_params =
+      case AshPhoenix.LiveView.page_link_params(page, which) do
+        :invalid -> []
+        list -> list
+      end
+
+    page_params
+    |> Enum.into(params, fn {k, v} -> {Atom.to_string(k), v} end)
+    |> to_uri_params()
+  end
+
+  def page_params_number(page_params, params, number) do
+    limit = Keyword.get(page_params, :limit)
+    offset = limit * (number - 1)
+
+    params
+    |> Map.put("limit", limit)
+    |> Map.put("offset", offset)
+    |> to_uri_params()
+  end
+
+  defp to_uri_params(params) do
+    URI.encode_query(params)
+  end
+end

lib/decentralised_book_index_web/components/my_components/search_resources.ex

@@ -0,0 +1,72 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SearchResources do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  alias DecentralisedBookIndex.Accounts.Role
+
+  attr :search_query, :string, default: ""
+  attr :select_options, :list, required: true
+  attr :selected_option, :string, required: true
+  attr :current_user, :map, default: nil
+
+  attr :resource_type, :string, required: true
+  attr :resource_new_url, :string, required: true
+  attr :search_placeholder, :string, default: "Search by name"
+
+  attr :moderator_role, :atom, default: :moderator
+
+  def search_resources(assigns) do
+    ~H"""
+    <div class="relative bg-white shadow-md dark:bg-gray-800 sm:rounded-lg">
+      <div class="flex flex-col items-center justify-between p-4 space-y-3 md:flex-row md:space-y-0 md:space-x-4">
+        <div class="w-full grow">
+          <form class="flex items-center" phx-change="search" phx-submit="search">
+            <label for="simple-search" class="sr-only">Search</label>
+            <div class="relative w-full">
+              <div class="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
+                <svg aria-hidden="true" class="w-5 h-5 text-gray-500 dark:text-gray-400" fill="currentColor" viewbox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
+                  <path fill-rule="evenodd" d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z" clip-rule="evenodd" />
+                </svg>
+              </div>
+              <input name="query" type="text" phx-debounce="300" autocomplete="off" id="simple-search" class="block w-full p-2 pl-10 text-sm text-gray-900 border border-gray-300 rounded-lg bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500" placeholder={@search_placeholder} value={@search_query}>
+            </div>
+          </form>
+        </div>
+        <div class="flex flex-col items-stretch justify-end flex-shrink-0 w-full space-y-2 md:w-auto md:flex-row md:space-y-0 md:items-center md:space-x-3">
+          <%= if can_add?(@current_user, @moderator_role) do %>
+            <.link patch={@resource_new_url}>
+              <button type="button" class="grow w-full flex items-center justify-left px-4 py-2 text-sm font-medium text-black dark:text-white rounded-lg bg-primary-700 hover:bg-primary-800 focus:ring-4 focus:ring-primary-300 dark:bg-primary-600 dark:hover:bg-primary-700 focus:outline-none dark:focus:ring-primary-800">
+                <svg class="h-3.5 w-3.5 mr-2" fill="currentColor" viewbox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" aria-hidden="true">
+                  <path clip-rule="evenodd" fill-rule="evenodd" d="M10 3a1 1 0 011 1v5h5a1 1 0 110 2h-5v5a1 1 0 11-2 0v-5H4a1 1 0 110-2h5V4a1 1 0 011-1z" />
+                </svg>
+                Add {@resource_type}
+              </button>
+            </.link>
+          <% end %>
+          <div class="flex items-center w-full space-x-3 md:w-auto">
+            <form phx-change="change-sort" class="w-full">
+            <select name="sort_by" id="sort_by" class="grow bg-gray-50 border border-gray-300 text-gray-900 text-sm rounded-lg focus:ring-blue-500 focus:border-blue-500 block w-full p-2.5 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-blue-500 dark:focus:border-blue-500">
+              <%= for {name, value} <- @select_options do %>
+                <%= if value == @selected_option do %>
+                  <option value={value} selected>{name}</option>
+                <% else %>
+                  <option value={value}>{name}</option>
+                <% end %>
+              <% end %>
+            </select>
+            </form>
+          </div>
+        </div>
+      </div>
+    </div>
+    """
+  end
+
+  defp can_add?(current_user, role) do
+    case role do
+      :admin -> current_user != nil and Role.can_administrate?(current_user.role)
+      :moderator -> current_user != nil and Role.can_moderate?(current_user.role)
+      _ -> false
+    end
+  end
+end

lib/decentralised_book_index_web/components/my_components/select_author.ex

@@ -0,0 +1,57 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectAuthor do
+  use DecentralisedBookIndexWeb, :live_component
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        Select Author
+      </.header>
+
+      <form class="flex items-center" phx-change="search" phx-target={@myself}>
+        <label for="simple-search" class="sr-only">Search</label>
+        <div class="relative w-full">
+          <div class="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
+            <svg aria-hidden="true" class="w-5 h-5 text-gray-500 dark:text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
+              <path fill-rule="evenodd" d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z" clip-rule="evenodd"></path>
+            </svg>
+          </div>
+          <input name="query" type="text" phx-debounce="300" autocomplete="off" id="simple-search" class="block w-full p-2 pl-10 text-sm text-gray-900 border border-gray-300 rounded-lg bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500" placeholder="Search" value="">
+        </div>
+      </form>
+
+      <%= for author <- @page.results do %>
+        <div phx-click="select-author" phx-target={@notify_component} phx-value-author={author.id} phx-value-path={@form_path} class="w-full bg-white border border-gray-200 rounded-lg shadow-sm dark:bg-gray-800 dark:border-gray-700 mx-auto my-3">
+          <h5 class="mb-1 text-lg font-medium text-gray-900 dark:text-white px-2 pt-1">{author.name}</h5>
+        </div>
+      <% end %>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign(:author_query, "")
+     |> search()}
+  end
+
+  def handle_event("search", %{"query" => query}, socket) do
+    {:noreply,
+     socket
+     |> assign(:author_query, query)
+     |> search()}
+  end
+
+  defp search(socket) do
+    query = Map.get(socket.assigns, :author_query, "")
+    page = Metadata.search_author!(query)
+
+    socket
+    |> assign(page: page)
+  end
+end

lib/decentralised_book_index_web/components/my_components/select_author_alias.ex

@@ -0,0 +1,84 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectAuthorAlias do
+  use DecentralisedBookIndexWeb, :live_component
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        Select another alias of the author
+      </.header>
+
+      <form class="flex items-center" phx-change="search" phx-target={@myself}>
+        <label for="simple-search" class="sr-only">Search</label>
+        <div class="relative w-full">
+          <div class="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
+            <svg
+              aria-hidden="true"
+              class="w-5 h-5 text-gray-500 dark:text-gray-400"
+              fill="currentColor"
+              viewBox="0 0 20 20"
+              xmlns="http://www.w3.org/2000/svg"
+            >
+              <path
+                fill-rule="evenodd"
+                d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z"
+                clip-rule="evenodd"
+              >
+              </path>
+            </svg>
+          </div>
+          <input
+            name="query"
+            type="text"
+            phx-debounce="300"
+            autocomplete="off"
+            id="simple-search"
+            class="block w-full p-2 pl-10 text-sm text-gray-900 border border-gray-300 rounded-lg bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500"
+            placeholder="Search"
+            value=""
+          />
+        </div>
+      </form>
+
+      <%= for author_alias <- @page.results do %>
+        <div
+          phx-click="select-author-alias"
+          phx-target={@notify_component}
+          phx-value-author-alias={author_alias.author_alias_registry_id}
+          class="w-full bg-white border border-gray-200 rounded-lg shadow-sm dark:bg-gray-800 dark:border-gray-700 mx-auto my-3"
+        >
+          <h5 class="mb-1 text-lg font-medium text-gray-900 dark:text-white px-2 pt-1">
+            {author_alias.name}
+          </h5>
+        </div>
+      <% end %>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign(:author_alias_query, "")
+     |> search()}
+  end
+
+  def handle_event("search", %{"query" => query}, socket) do
+    {:noreply,
+     socket
+     |> assign(:author_alias_query, query)
+     |> search()}
+  end
+
+  defp search(socket) do
+    query = Map.get(socket.assigns, :author_alias_query, "")
+    page = Metadata.search_author!(query)
+
+    socket
+    |> assign(page: page)
+  end
+end

lib/decentralised_book_index_web/components/my_components/select_book_edition.ex

@@ -0,0 +1,84 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectBookEdition do
+  use DecentralisedBookIndexWeb, :live_component
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        Select another edition of the book
+      </.header>
+
+      <form class="flex items-center" phx-change="search" phx-target={@myself}>
+        <label for="simple-search" class="sr-only">Search</label>
+        <div class="relative w-full">
+          <div class="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
+            <svg
+              aria-hidden="true"
+              class="w-5 h-5 text-gray-500 dark:text-gray-400"
+              fill="currentColor"
+              viewBox="0 0 20 20"
+              xmlns="http://www.w3.org/2000/svg"
+            >
+              <path
+                fill-rule="evenodd"
+                d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z"
+                clip-rule="evenodd"
+              >
+              </path>
+            </svg>
+          </div>
+          <input
+            name="query"
+            type="text"
+            phx-debounce="300"
+            autocomplete="off"
+            id="simple-search"
+            class="block w-full p-2 pl-10 text-sm text-gray-900 border border-gray-300 rounded-lg bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500"
+            placeholder="Search"
+            value=""
+          />
+        </div>
+      </form>
+
+      <%= for book_edition <- @page.results do %>
+        <div
+          phx-click="select-book-edition"
+          phx-target={@notify_component}
+          phx-value-book-edition={book_edition.book_editions_registry_id}
+          class="w-full bg-white border border-gray-200 rounded-lg shadow-sm dark:bg-gray-800 dark:border-gray-700 mx-auto my-3"
+        >
+          <h5 class="mb-1 text-lg font-medium text-gray-900 dark:text-white px-2 pt-1">
+            {book_edition.title}
+          </h5>
+        </div>
+      <% end %>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign(:book_edition_query, "")
+     |> search()}
+  end
+
+  def handle_event("search", %{"query" => query}, socket) do
+    {:noreply,
+     socket
+     |> assign(:book_edition_query, query)
+     |> search()}
+  end
+
+  defp search(socket) do
+    query = Map.get(socket.assigns, :book_edition_query, "")
+    page = Metadata.search_book!(query)
+
+    socket
+    |> assign(page: page)
+  end
+end

lib/decentralised_book_index_web/components/my_components/select_publisher.ex

@@ -0,0 +1,57 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectPublisher do
+  use DecentralisedBookIndexWeb, :live_component
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        Select Publisher
+      </.header>
+
+      <form class="flex items-center" phx-change="search" phx-target={@myself}>
+        <label for="simple-search" class="sr-only">Search</label>
+        <div class="relative w-full">
+          <div class="absolute inset-y-0 left-0 flex items-center pl-3 pointer-events-none">
+            <svg aria-hidden="true" class="w-5 h-5 text-gray-500 dark:text-gray-400" fill="currentColor" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg">
+              <path fill-rule="evenodd" d="M8 4a4 4 0 100 8 4 4 0 000-8zM2 8a6 6 0 1110.89 3.476l4.817 4.817a1 1 0 01-1.414 1.414l-4.816-4.816A6 6 0 012 8z" clip-rule="evenodd"></path>
+            </svg>
+          </div>
+          <input name="query" type="text" phx-debounce="300" autocomplete="off" id="simple-search" class="block w-full p-2 pl-10 text-sm text-gray-900 border border-gray-300 rounded-lg bg-gray-50 focus:ring-primary-500 focus:border-primary-500 dark:bg-gray-700 dark:border-gray-600 dark:placeholder-gray-400 dark:text-white dark:focus:ring-primary-500 dark:focus:border-primary-500" placeholder="Search" value="">
+        </div>
+      </form>
+
+      <%= for publisher <- @page.results do %>
+        <div phx-click="select-publisher" phx-target={@notify_component} phx-value-publisher={publisher.id} class="w-full bg-white border border-gray-200 rounded-lg shadow-sm dark:bg-gray-800 dark:border-gray-700 mx-auto my-3">
+          <h5 class="mb-1 text-lg font-medium text-gray-900 dark:text-white px-2 pt-1">{publisher.name}</h5>
+        </div>
+      <% end %>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign(:publisher_query, "")
+     |> search()}
+  end
+
+  def handle_event("search", %{"query" => query}, socket) do
+    {:noreply,
+     socket
+     |> assign(:publisher_query, query)
+     |> search()}
+  end
+
+  defp search(socket) do
+    query = Map.get(socket.assigns, :publisher_query, "")
+    page = Metadata.search_publisher!(query)
+
+    socket
+    |> assign(page: page)
+  end
+end

lib/decentralised_book_index_web/components/my_components/selected_author.ex

@@ -0,0 +1,47 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectedAuthor do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  alias DecentralisedBookIndexWeb.CoreComponents
+
+  attr :author_form, :map, default: nil
+  attr :form_path, :string, default: ""
+  attr :class, :string, default: ""
+
+  def selected_author(assigns) do
+    author_id = assigns.author_form.value
+
+    author =
+      if author_id == nil do
+        author_id
+      else
+        DecentralisedBookIndex.Metadata.get_author_by_id!(author_id)
+      end
+
+    errors =
+      if Phoenix.Component.used_input?(assigns.author_form), do: assigns.author_form.errors, else: []
+
+    assigns =
+      assigns
+      |> assign(:author, author)
+      |> assign(:errors, Enum.map(errors, &CoreComponents.translate_error(&1)))
+
+    ~H"""
+    <button
+      type="button"
+      phx-click="open-select-author"
+      phx-target={@notify_component}
+      phx-value-path={@form_path}
+      class={"text-white bg-blue-700 hover:bg-blue-800 focus:outline-none focus:ring-4 focus:ring-blue-300 font-medium rounded-full text-sm px-5 py-2.5 text-center dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800 #{@class}"}
+    >
+      <%= if @author != nil do %>
+        {@author.name}
+      <% else %>
+        Select an author
+      <% end %>
+    </button>
+
+    <CoreComponents.error :for={msg <- @errors}>{msg}</CoreComponents.error>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/selected_author_alias.ex

@@ -0,0 +1,19 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectedAuthorAlias do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  attr :author_alias_registry_form, :map, default: nil
+
+  def selected_author_alias(assigns) do
+    ~H"""
+    <button
+      type="button"
+      phx-click="open-select-author-alias"
+      phx-target={@notify_component}
+      class={"text-white bg-blue-700 hover:bg-blue-800 focus:outline-none focus:ring-4 focus:ring-blue-300 font-medium rounded-full text-sm px-5 py-2.5 text-center dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800"}
+    >
+      Change the author alias
+    </button>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/selected_book_edition.ex

@@ -0,0 +1,19 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectedBookEdition do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  attr :book_editions_registry_form, :map, default: nil
+
+  def selected_book_edition(assigns) do
+    ~H"""
+    <button
+      type="button"
+      phx-click="open-select-book-edition"
+      phx-target={@notify_component}
+      class={"text-white bg-blue-700 hover:bg-blue-800 focus:outline-none focus:ring-4 focus:ring-blue-300 font-medium rounded-full text-sm px-5 py-2.5 text-center dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800"}
+    >
+      Change the book edition
+    </button>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_components/selected_publisher.ex

@@ -0,0 +1,44 @@
+defmodule DecentralisedBookIndexWeb.Components.MyComponents.SelectedPublisher do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  alias DecentralisedBookIndexWeb.CoreComponents
+
+  attr :publisher_form, :map, default: nil
+
+  def selected_publisher(assigns) do
+    publisher_id = assigns.publisher_form.value
+
+    publisher =
+      if publisher_id == nil do
+        publisher_id
+      else
+        DecentralisedBookIndex.Metadata.get_publisher_by_id!(publisher_id)
+      end
+
+    errors =
+      if Phoenix.Component.used_input?(assigns.publisher_form), do: assigns.publisher_form.errors, else: []
+
+    assigns =
+      assigns
+      |> assign(:publisher, publisher)
+      |> assign(:errors, Enum.map(errors, &CoreComponents.translate_error(&1)))
+
+    ~H"""
+    <button
+      type="button"
+      phx-click="open-select-publisher"
+      phx-target={@notify_component}
+      class="text-white bg-blue-700 hover:bg-blue-800 focus:outline-none focus:ring-4 focus:ring-blue-300 font-medium rounded-full text-sm px-5 py-2.5 text-center dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-blue-800"
+    >
+      <%= if @publisher != nil do %>
+        {@publisher.name}
+      <% else %>
+        Select a publisher
+      <% end %>
+    </button>
+
+    <CoreComponents.error :for={msg <- @errors}>{msg}</CoreComponents.error>
+    """
+  end
+end

lib/decentralised_book_index_web/components/my_partials.ex

@@ -0,0 +1,10 @@
+defmodule DecentralisedBookIndexWeb.Components.MyPartials do
+  alias DecentralisedBookIndexWeb.Components.MyPartials
+
+  defmacro __using__(_) do
+    quote do
+      import MyPartials.Navbar, only: [partial_navbar: 1]
+      import MyPartials.Footer, only: [partial_footer: 1]
+    end
+  end
+end

lib/decentralised_book_index_web/components/my_partials/footer.ex

@@ -0,0 +1,27 @@
+defmodule DecentralisedBookIndexWeb.Components.MyPartials.Footer do
+  use Phoenix.Component
+
+  def partial_footer(assigns) do
+    ~H"""
+    <footer class="bg-white shadow-sm dark:bg-gray-900">
+      <div class="w-full max-w-screen-xl mx-auto p-4 md:py-8">
+        <hr class="my-6 border-gray-200 sm:mx-auto dark:border-gray-700 lg:my-8" />
+        <span class="block text-sm text-gray-500 text-center dark:text-gray-400">
+          © 2025 Kostiantyn Klochko. All Rights Reserved.
+        </span>
+        <span class="block text-sm text-gray-500 text-center dark:text-gray-400">
+          <a href="https://git.kklochko.space/KKlochko/decentralised_book_index">Decentralised book index</a> is free software: you can redistribute it and/or modify it under the terms of <a href="https://www.gnu.org/licenses/agpl-3.0.en.html">the GNU Affero General Public License</a> as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+        </span>
+      </div>
+    </footer>
+    """
+  end
+
+  def selected_navbar_link_css(page_title, active_title) do
+    if active_title =~ page_title do
+      "block py-2 pr-4 pl-3 text-black dark:text-white rounded bg-primary-700 lg:bg-transparent lg:text-primary-700 lg:p-0 dark:text-white"
+    else
+      "block py-2 pr-4 pl-3 text-gray-700 border-b border-gray-100 hover:bg-gray-50 lg:hover:bg-transparent lg:border-0 lg:hover:text-primary-700 lg:p-0 dark:text-gray-400 lg:dark:hover:text-white dark:hover:bg-gray-700 dark:hover:text-white lg:dark:hover:bg-transparent dark:border-gray-700"
+    end
+  end
+end

lib/decentralised_book_index_web/components/my_partials/navbar.ex

@@ -0,0 +1,188 @@
+defmodule DecentralisedBookIndexWeb.Components.MyPartials.Navbar do
+  use Phoenix.Component
+  use DecentralisedBookIndexWeb, :verified_routes
+
+  import DecentralisedBookIndexWeb.Components.MyComponents.Buttons
+  alias Phoenix.LiveView.JS
+  alias DecentralisedBookIndex.Accounts.Role
+
+  attr :page_title, :string, required: true
+  attr :current_user, :map, default: nil
+
+  def partial_navbar(assigns) do
+    ~H"""
+    <nav class="bg-white border-gray-200 px-4 lg:px-6 py-2.5 dark:bg-gray-800">
+      <div class="flex flex-wrap justify-between items-center mx-auto max-w-screen-xl">
+        <.link patch={~p"/books"} class="flex items-center">
+          <svg
+            class="w-6 h-6 text-gray-800 dark:text-white"
+            aria-hidden="true"
+            xmlns="http://www.w3.org/2000/svg"
+            width="24"
+            height="24"
+            fill="none"
+            viewBox="0 0 24 24"
+          >
+            <path
+              stroke="currentColor"
+              stroke-linecap="round"
+              stroke-linejoin="round"
+              stroke-width="2"
+              d="M12 6.03v13m0-13c-2.819-.831-4.715-1.076-8.029-1.023A.99.99 0 0 0 3 6v11c0 .563.466 1.014 1.03 1.007 3.122-.043 5.018.212 7.97 1.023m0-13c2.819-.831 4.715-1.076 8.029-1.023A.99.99 0 0 1 21 6v11c0 .563-.466 1.014-1.03 1.007-3.122-.043-5.018.212-7.97 1.023"
+            />
+          </svg>
+
+          <span class="self-center text-xl font-semibold whitespace-nowrap dark:text-white">DBI</span>
+        </.link>
+        <div class="flex items-center lg:order-2">
+          <.user_info current_user={@current_user} />
+          <button
+            data-collapse-toggle="mobile-menu-2"
+            type="button"
+            class="inline-flex items-center p-2 ml-1 text-sm text-gray-500 rounded-lg lg:hidden hover:bg-gray-100 focus:outline-none focus:ring-2 focus:ring-gray-200 dark:text-gray-400 dark:hover:bg-gray-700 dark:focus:ring-gray-600"
+            aria-controls="mobile-menu-2"
+            aria-expanded="false"
+          >
+            <span class="sr-only">Open main menu</span>
+            <svg
+              class="w-6 h-6"
+              fill="currentColor"
+              viewBox="0 0 20 20"
+              xmlns="http://www.w3.org/2000/svg"
+            >
+              <path
+                fill-rule="evenodd"
+                d="M3 5a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 10a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1zM3 15a1 1 0 011-1h12a1 1 0 110 2H4a1 1 0 01-1-1z"
+                clip-rule="evenodd"
+              >
+              </path>
+            </svg>
+            <svg
+              class="hidden w-6 h-6"
+              fill="currentColor"
+              viewBox="0 0 20 20"
+              xmlns="http://www.w3.org/2000/svg"
+            >
+              <path
+                fill-rule="evenodd"
+                d="M4.293 4.293a1 1 0 011.414 0L10 8.586l4.293-4.293a1 1 0 111.414 1.414L11.414 10l4.293 4.293a1 1 0 01-1.414 1.414L10 11.414l-4.293 4.293a1 1 0 01-1.414-1.414L8.586 10 4.293 5.707a1 1 0 010-1.414z"
+                clip-rule="evenodd"
+              >
+              </path>
+            </svg>
+          </button>
+        </div>
+        <div
+          class="hidden justify-between items-center w-full lg:flex lg:w-auto lg:order-1"
+          id="mobile-menu-2"
+        >
+          <ul class="flex flex-col mt-4 font-medium lg:flex-row lg:space-x-8 lg:mt-0">
+            <li>
+              <a
+                href={~p"/books/"}
+                class={selected_navbar_link_css(@page_title, "Listing Books")}
+                aria-current="page"
+              >
+                Books
+              </a>
+            </li>
+            <li>
+              <a
+                href={~p"/authors/"}
+                class={selected_navbar_link_css(@page_title, "Listing Authors")}
+                aria-current="page"
+              >
+                Authors
+              </a>
+            </li>
+            <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
+              <li>
+                <a
+                  href={~p"/publishers/"}
+                  class={selected_navbar_link_css(@page_title, "Listing Publishers")}
+                  aria-current="page"
+                >
+                  Publishers
+                </a>
+              </li>
+            <% end %>
+            <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
+              <li>
+                <a
+                  href={~p"/servers/"}
+                  class={selected_navbar_link_css(@page_title, "Listing Server")}
+                  aria-current="page"
+                >
+                  Servers
+                </a>
+              </li>
+            <% end %>
+            <%= if @current_user != nil and Role.can_administrate?(@current_user.role) do %>
+              <li>
+                <a
+                  href={~p"/users/"}
+                  class={selected_navbar_link_css(@page_title, "Listing Users")}
+                  aria-current="page"
+                >
+                  Users
+                </a>
+              </li>
+            <% end %>
+          </ul>
+        </div>
+      </div>
+    </nav>
+    """
+  end
+
+  attr :current_user, :map, default: nil
+
+  defp user_info(assigns) do
+    ~H"""
+    <%= if @current_user != nil do %>
+      <div class="flex justify-end px-4">
+        <button
+          id="dropdownButton-user-info"
+          data-dropdown-toggle="dropdown-user-info"
+          class="inline-block text-gray-500 dark:text-gray-400 hover:bg-gray-100 dark:hover:bg-gray-700 focus:ring-4 focus:outline-none focus:ring-gray-200 dark:focus:ring-gray-700 rounded-lg text-sm p-1.5"
+          type="button"
+        >
+          <span class="sr-only">Open dropdown</span>
+          {@current_user.email}
+        </button>
+        <!-- Dropdown menu -->
+        <div
+          id="dropdown-user-info"
+          class="z-10 hidden text-base list-none bg-white rounded-lg shadow-sm w-40 dark:bg-gray-700 flex flex-col items-center pt-2 border dark:border-gray-600"
+        >
+          <%= if @current_user.role != :user do %>
+            <p class="text-zinc-700 dark:text-white">
+              role: {@current_user.role}
+            </p>
+          <% end %>
+          <.link patch={~p"/sign-out"}>
+            <.primary_button>
+              Sign Out
+            </.primary_button>
+          </.link>
+        </div>
+      </div>
+    <% else %>
+      <a
+        href={~p"/sign-in"}
+        class="text-gray-800 dark:text-white hover:bg-gray-50 focus:ring-4 focus:ring-gray-300 font-medium rounded-lg text-sm px-4 lg:px-5 py-2 lg:py-2.5 mr-2 dark:hover:bg-gray-700 focus:outline-none dark:focus:ring-gray-800"
+      >
+        Sign in
+      </a>
+    <% end %>
+    """
+  end
+
+  defp selected_navbar_link_css(page_title, active_title) do
+    if active_title =~ page_title do
+      "block py-2 pr-4 pl-3 text-black dark:text-white rounded bg-primary-700 lg:bg-transparent lg:text-primary-700 lg:p-0 dark:text-white"
+    else
+      "block py-2 pr-4 pl-3 text-gray-700 border-gray-100 hover:bg-gray-50 lg:hover:bg-transparent lg:border-0 lg:hover:text-primary-700 lg:p-0 dark:text-gray-400 lg:dark:hover:text-white dark:hover:bg-gray-700 dark:hover:text-white lg:dark:hover:bg-transparent dark:border-gray-700"
+    end
+  end
+end

lib/decentralised_book_index_web/controllers/error_html.ex

@@ -13,7 +13,7 @@ defmodule DecentralisedBookIndexWeb.ErrorHTML do
   #   * lib/decentralised_book_index_web/controllers/error_html/404.html.heex
   #   * lib/decentralised_book_index_web/controllers/error_html/500.html.heex
   #
-  # embed_templates "error_html/*"
+  embed_templates "error_html/*"
 
   # The default is to render a plain text page based on
   # the template name. For example, "404.html" becomes

lib/decentralised_book_index_web/controllers/error_html/404.html.heex

@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html lang="en" class="[scrollbar-gutter:stable]">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="csrf-token" content={get_csrf_token()} />
+    <.live_title default="DecentralisedBookIndex" suffix=" · Page not found">
+      {assigns[:page_title]}
+    </.live_title>
+    <link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />
+    <script defer phx-track-static type="text/javascript" src={~p"/assets/app.js"}>
+    </script>
+  </head>
+  <body class="bg-white dark:bg-gray-900 flex flex-col h-screen">
+    <header>
+      <.partial_navbar page_title="404" current_user={assigns[:current_user]} />
+    </header>
+
+    <main class="px-4 pt-20 pb-2 sm:px-6 lg:px-8 flex-grow">
+      <div class="mx-auto max-w-4xl">
+        <%= if Map.has_key?(assigns, :flash) do %>
+          <.flash_group flash={@flash} />
+        <% end %>
+
+        <section class="bg-white dark:bg-gray-900">
+          <div class="py-8 px-4 mx-auto max-w-screen-xl lg:py-16 lg:px-6">
+            <div class="mx-auto max-w-screen-sm text-center">
+              <h1 class="mb-4 text-7xl tracking-tight font-extrabold lg:text-9xl text-blue-600 dark:text-blue-500">
+                404
+              </h1>
+              <p class="mb-4 text-3xl tracking-tight font-bold text-gray-900 md:text-4xl dark:text-white">
+                Something's missing.
+              </p>
+              <p class="mb-4 text-lg font-light text-gray-500 dark:text-gray-400">
+                Sorry, we can't find that page.
+              </p>
+              <a
+                href="/books"
+                class="inline-flex text-white bg-blue-600 hover:bg-blue-800 focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:focus:ring-blue-900 my-4"
+              >
+                Go to books
+              </a>
+            </div>
+          </div>
+        </section>
+      </div>
+    </main>
+
+    <.partial_footer />
+  </body>
+</html>

lib/decentralised_book_index_web/controllers/error_html/500.html.heex

@@ -0,0 +1,51 @@
+<!DOCTYPE html>
+<html lang="en" class="[scrollbar-gutter:stable]">
+  <head>
+    <meta charset="utf-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1" />
+    <meta name="csrf-token" content={get_csrf_token()} />
+    <.live_title default="DecentralisedBookIndex" suffix=" · Something went wrong">
+      {assigns[:page_title]}
+    </.live_title>
+    <link phx-track-static rel="stylesheet" href={~p"/assets/app.css"} />
+    <script defer phx-track-static type="text/javascript" src={~p"/assets/app.js"}>
+    </script>
+  </head>
+  <body class="bg-white dark:bg-gray-900 flex flex-col h-screen">
+    <header>
+      <.partial_navbar page_title="505" current_user={assigns[:current_user]} />
+    </header>
+
+    <main class="px-4 pt-20 pb-2 sm:px-6 lg:px-8 flex-grow">
+      <div class="mx-auto max-w-4xl">
+        <%= if Map.has_key?(assigns, :flash) do %>
+          <.flash_group flash={@flash} />
+        <% end %>
+
+        <section class="bg-white dark:bg-gray-900">
+          <div class="py-8 px-4 mx-auto max-w-screen-xl lg:py-16 lg:px-6">
+            <div class="mx-auto max-w-screen-sm text-center">
+              <h1 class="mb-4 text-7xl tracking-tight font-extrabold lg:text-9xl text-blue-600 dark:text-blue-500">
+                500
+              </h1>
+              <p class="mb-4 text-3xl tracking-tight font-bold text-gray-900 md:text-4xl dark:text-white">
+                Something's went wrong.
+              </p>
+              <p class="mb-4 text-lg font-light text-gray-500 dark:text-gray-400">
+                Try to refresh the page. Feel free to contact us if the problem persists.
+              </p>
+              <a
+                href="/books"
+                class="inline-flex text-white bg-blue-600 hover:bg-blue-800 focus:ring-4 focus:outline-none focus:ring-blue-300 font-medium rounded-lg text-sm px-5 py-2.5 text-center dark:focus:ring-blue-900 my-4"
+              >
+                Go to books
+              </a>
+            </div>
+          </div>
+        </section>
+      </div>
+    </main>
+
+    <.partial_footer />
+  </body>
+</html>

lib/decentralised_book_index_web/controllers/page_html/home.html.heex

@@ -1,271 +1,11 @@
 <.flash_group flash={@flash} />
-<div class="left-[40rem] fixed inset-y-0 right-0 z-0 hidden lg:block xl:left-[50rem]">
-  <svg
-    viewBox="0 0 1480 957"
-    fill="none"
-    aria-hidden="true"
-    class="absolute inset-0 h-full w-full"
-    preserveAspectRatio="xMinYMid slice"
-  >
-    <path fill="#EE7868" d="M0 0h1480v957H0z" />
-    <path
-      d="M137.542 466.27c-582.851-48.41-988.806-82.127-1608.412 658.2l67.39 810 3083.15-256.51L1535.94-49.622l-98.36 8.183C1269.29 281.468 734.115 515.799 146.47 467.012l-8.928-.742Z"
-      fill="#FF9F92"
-    />
-    <path
-      d="M371.028 528.664C-169.369 304.988-545.754 149.198-1361.45 665.565l-182.58 792.025 3014.73 694.98 389.42-1689.25-96.18-22.171C1505.28 697.438 924.153 757.586 379.305 532.09l-8.277-3.426Z"
-      fill="#FA8372"
-    />
-    <path
-      d="M359.326 571.714C-104.765 215.795-428.003-32.102-1349.55 255.554l-282.3 1224.596 3047.04 722.01 312.24-1354.467C1411.25 1028.3 834.355 935.995 366.435 577.166l-7.109-5.452Z"
-      fill="#E96856"
-      fill-opacity=".6"
-    />
-    <path
-      d="M1593.87 1236.88c-352.15 92.63-885.498-145.85-1244.602-613.557l-5.455-7.105C-12.347 152.31-260.41-170.8-1225-131.458l-368.63 1599.048 3057.19 704.76 130.31-935.47Z"
-      fill="#C42652"
-      fill-opacity=".2"
-    />
-    <path
-      d="M1411.91 1526.93c-363.79 15.71-834.312-330.6-1085.883-863.909l-3.822-8.102C72.704 125.95-101.074-242.476-1052.01-408.907l-699.85 1484.267 2837.75 1338.01 326.02-886.44Z"
-      fill="#A41C42"
-      fill-opacity=".2"
-    />
-    <path
-      d="M1116.26 1863.69c-355.457-78.98-720.318-535.27-825.287-1115.521l-1.594-8.816C185.286 163.833 112.786-237.016-762.678-643.898L-1822.83 608.665 571.922 2635.55l544.338-771.86Z"
-      fill="#A41C42"
-      fill-opacity=".2"
-    />
-  </svg>
-  <div class="sm:py-28 xl:py-32">
-    <div class="relative px-8">
-      <div class="relative space-y-6 bg-black/50 px-6 pt-1 pb-6 rounded-xl">
-        <span class="flex absolute h-6 w-6 -top-1 -left-2 -mt-1 -mr-1">
-          <span class="animate-ping absolute inline-flex h-full w-full rounded-full bg-white">
-          </span>
-          <span class="relative inline-flex rounded-full h-6 w-6 bg-white/80"></span>
-        </span>
-        <h2 class="text-4xl text-white font-semibold">
-          Finish your Elixir setup!
-        </h2>
-        <p class="text-lg text-gray-300">
-          Elixir has been installed to
-          <code class="text-[1rem] px-2 py-1 rounded-md bg-black/50">~/.elixir-install</code>
-          and activated in your current shell. <br />
-          <br /> Add to your
-          <code class="text-[1rem] px-2 py-1 rounded-md bg-black/50">~/.bashrc</code>
-          or similar to ensure it is always activated:
-        </p>
-        <div class="relative text-md text-gray-300 p-2 rounded-md bg-black/50">
-          <button
-            class="absolute -right-2 -top-2 p-1 bg-white/70 hover:bg-white rounded-full"
-            onclick="navigator.clipboard.writeText(document.getElementById('setup-elixir').innerText)"
-          >
-            <svg
-              xmlns="http://www.w3.org/2000/svg"
-              fill="none"
-              viewBox="0 0 24 24"
-              stroke-width="1.5"
-              stroke="currentColor"
-              class="size-5 stroke-black/80"
-            >
-              <path
-                stroke-linecap="round"
-                stroke-linejoin="round"
-                d="M15.666 3.888A2.25 2.25 0 0 0 13.5 2.25h-3c-1.03 0-1.9.693-2.166 1.638m7.332 0c.055.194.084.4.084.612v0a.75.75 0 0 1-.75.75H9a.75.75 0 0 1-.75-.75v0c0-.212.03-.418.084-.612m7.332 0c.646.049 1.288.11 1.927.184 1.1.128 1.907 1.077 1.907 2.185V19.5a2.25 2.25 0 0 1-2.25 2.25H6.75A2.25 2.25 0 0 1 4.5 19.5V6.257c0-1.108.806-2.057 1.907-2.185a48.208 48.208 0 0 1 1.927-.184"
-              />
-            </svg>
-          </button>
-          <code
-            id="setup-elixir"
-            class="block px-1 overflow-x-auto whitespace-pre"
-            phx-no-format
-          >export PATH=$HOME//nix/store/imkmv8zssyq3nwbr8b3ilj1mg9jikqzy-erlang-25.3.2.12/lib/erlang/erts-13.2.2.9/bin:$PATH
-export PATH=$HOME/.nix-profile/bin:$PATH</code>
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
 <div class="px-4 py-10 sm:px-6 sm:py-28 lg:px-8 xl:px-28 xl:py-32">
   <div class="mx-auto max-w-xl lg:mx-0">
-    <svg viewBox="0 0 71 48" class="h-12" aria-hidden="true">
-      <path
-        d="m26.371 33.477-.552-.1c-3.92-.729-6.397-3.1-7.57-6.829-.733-2.324.597-4.035 3.035-4.148 1.995-.092 3.362 1.055 4.57 2.39 1.557 1.72 2.984 3.558 4.514 5.305 2.202 2.515 4.797 4.134 8.347 3.634 3.183-.448 5.958-1.725 8.371-3.828.363-.316.761-.592 1.144-.886l-.241-.284c-2.027.63-4.093.841-6.205.735-3.195-.16-6.24-.828-8.964-2.582-2.486-1.601-4.319-3.746-5.19-6.611-.704-2.315.736-3.934 3.135-3.6.948.133 1.746.56 2.463 1.165.583.493 1.143 1.015 1.738 1.493 2.8 2.25 6.712 2.375 10.265-.068-5.842-.026-9.817-3.24-13.308-7.313-1.366-1.594-2.7-3.216-4.095-4.785-2.698-3.036-5.692-5.71-9.79-6.623C12.8-.623 7.745.14 2.893 2.361 1.926 2.804.997 3.319 0 4.149c.494 0 .763.006 1.032 0 2.446-.064 4.28 1.023 5.602 3.024.962 1.457 1.415 3.104 1.761 4.798.513 2.515.247 5.078.544 7.605.761 6.494 4.08 11.026 10.26 13.346 2.267.852 4.591 1.135 7.172.555ZM10.751 3.852c-.976.246-1.756-.148-2.56-.962 1.377-.343 2.592-.476 3.897-.528-.107.848-.607 1.306-1.336 1.49Zm32.002 37.924c-.085-.626-.62-.901-1.04-1.228-1.857-1.446-4.03-1.958-6.333-2-1.375-.026-2.735-.128-4.031-.61-.595-.22-1.26-.505-1.244-1.272.015-.78.693-1 1.31-1.184.505-.15 1.026-.247 1.6-.382-1.46-.936-2.886-1.065-4.787-.3-2.993 1.202-5.943 1.06-8.926-.017-1.684-.608-3.179-1.563-4.735-2.408l-.043.03a2.96 2.96 0 0 0 .04-.029c-.038-.117-.107-.12-.197-.054l.122.107c1.29 2.115 3.034 3.817 5.004 5.271 3.793 2.8 7.936 4.471 12.784 3.73A66.714 66.714 0 0 1 37 40.877c1.98-.16 3.866.398 5.753.899Zm-9.14-30.345c-.105-.076-.206-.266-.42-.069 1.745 2.36 3.985 4.098 6.683 5.193 4.354 1.767 8.773 2.07 13.293.51 3.51-1.21 6.033-.028 7.343 3.38.19-3.955-2.137-6.837-5.843-7.401-2.084-.318-4.01.373-5.962.94-5.434 1.575-10.485.798-15.094-2.553Zm27.085 15.425c.708.059 1.416.123 2.124.185-1.6-1.405-3.55-1.517-5.523-1.404-3.003.17-5.167 1.903-7.14 3.972-1.739 1.824-3.31 3.87-5.903 4.604.043.078.054.117.066.117.35.005.699.021 1.047.005 3.768-.17 7.317-.965 10.14-3.7.89-.86 1.685-1.817 2.544-2.71.716-.746 1.584-1.159 2.645-1.07Zm-8.753-4.67c-2.812.246-5.254 1.409-7.548 2.943-1.766 1.18-3.654 1.738-5.776 1.37-.374-.066-.75-.114-1.124-.17l-.013.156c.135.07.265.151.405.207.354.14.702.308 1.07.395 4.083.971 7.992.474 11.516-1.803 2.221-1.435 4.521-1.707 7.013-1.336.252.038.503.083.756.107.234.022.479.255.795.003-2.179-1.574-4.526-2.096-7.094-1.872Zm-10.049-9.544c1.475.051 2.943-.142 4.486-1.059-.452.04-.643.04-.827.076-2.126.424-4.033-.04-5.733-1.383-.623-.493-1.257-.974-1.889-1.457-2.503-1.914-5.374-2.555-8.514-2.5.05.154.054.26.108.315 3.417 3.455 7.371 5.836 12.369 6.008Zm24.727 17.731c-2.114-2.097-4.952-2.367-7.578-.537 1.738.078 3.043.632 4.101 1.728.374.388.763.768 1.182 1.106 1.6 1.29 4.311 1.352 5.896.155-1.861-.726-1.861-.726-3.601-2.452Zm-21.058 16.06c-1.858-3.46-4.981-4.24-8.59-4.008a9.667 9.667 0 0 1 2.977 1.39c.84.586 1.547 1.311 2.243 2.055 1.38 1.473 3.534 2.376 4.962 2.07-.656-.412-1.238-.848-1.592-1.507Zm17.29-19.32c0-.023.001-.045.003-.068l-.006.006.006-.006-.036-.004.021.018.012.053Zm-20 14.744a7.61 7.61 0 0 0-.072-.041.127.127 0 0 0 .015.043c.005.008.038 0 .058-.002Zm-.072-.041-.008-.034-.008.01.008-.01-.022-.006.005.026.024.014Z"
-        fill="#FD4F00"
-      />
-    </svg>
-    <h1 class="text-brand mt-10 flex items-center text-sm font-semibold leading-6">
-      Phoenix Framework
-      <small class="bg-brand/5 text-[0.8125rem] ml-3 rounded-full px-2 font-medium leading-6">
-        v{Application.spec(:phoenix, :vsn)}
-      </small>
+    <h1 class="text-[2rem] mt-4 font-semibold leading-10 tracking-tighter text-zinc-900 text-balance">
+      Decentralised Book Index
     </h1>
-    <p class="text-[2rem] mt-4 font-semibold leading-10 tracking-tighter text-zinc-900 text-balance">
-      Peace of mind from prototype to production.
-    </p>
     <p class="mt-4 text-base leading-7 text-zinc-600">
-      Build rich, interactive web applications quickly, with less code and fewer moving parts. Join our growing community of developers using Phoenix to craft APIs, HTML5 apps and more, for fun or at scale.
+      Search the books.
     </p>
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lib/decentralised_book_index_web/live/author_live/edit.ex

@@ -0,0 +1,72 @@
+defmodule DecentralisedBookIndexWeb.AuthorLive.Edit do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.live_component
+      module={DecentralisedBookIndexWeb.AuthorLive.FormComponent}
+      id={(@author && @author.id) || :new}
+      title={@page_title}
+      current_user={@current_user}
+      action={@live_action}
+      author={@author}
+      alternative_author_id={@alternative_author_id}
+    />
+    """
+  end
+
+  @impl true
+  def mount(params, _session, socket) do
+    alternative_author_id = Map.get(params, "alternative_author_id", nil)
+
+    {:ok,
+     socket
+     |> assign(:alternative_author_id, alternative_author_id)
+     |> assign_new(:current_user, fn -> nil end)}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    socket =
+      socket
+      |> assign(:params, params)
+      |> apply_action(socket.assigns.live_action, params)
+
+    {:noreply, socket}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit Author")
+    |> assign(
+      :author,
+      Ash.get!(Metadata.Author, id, load: [:dbi_server], actor: socket.assigns.current_user)
+    )
+    |> redirect_if_not_editable()
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New Author")
+    |> assign(:author, nil)
+  end
+
+  @impl true
+  def handle_info({DecentralisedBookIndexWeb.AuthorLive.FormComponent, {:saved, _author}}, socket) do
+    {:noreply, socket}
+  end
+
+  defp redirect_if_not_editable(socket) do
+    if not is_nil(socket.assigns.author.dbi_server) do
+      socket =
+        socket
+        |> Phoenix.LiveView.put_flash(:error, "Can't edit other server's data!")
+        |> Phoenix.LiveView.redirect(to: ~p"/authors/#{socket.assigns.author}")
+    else
+      socket
+    end
+  end
+end

lib/decentralised_book_index_web/live/author_live/form_component.ex

@@ -0,0 +1,187 @@
+defmodule DecentralisedBookIndexWeb.AuthorLive.FormComponent do
+  use DecentralisedBookIndexWeb, :live_component
+
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        {@title}
+      </.header>
+
+      <.simple_form
+        for={@form}
+        id="author-form"
+        phx-target={@myself}
+        phx-change="validate"
+        phx-submit="save"
+      >
+        <%= if @form.source.type == :create do %>
+          <.input field={@form[:name]} type="text" label="Name" />
+          <.input field={@form[:avatar_url]} type="text" label="Cover image url" />
+          <.input field={@form[:description]} type="textarea" label="Description" />
+          <div>
+            <.input field={@form[:author_alias_registry_id]} type="hidden" label="Author alias registry" />
+            <.selected_author_alias author_alias_registry_form={@form[:author_alias_registry_id]} notify_component={@myself} />
+          </div>
+        <% end %>
+        <%= if @form.source.type == :update do %>
+          <.input field={@form[:name]} type="text" label="Name" />
+          <.input field={@form[:avatar_url]} type="text" label="Cover image url" />
+          <.input field={@form[:description]} type="textarea" label="Description" />
+          <div>
+            <.input field={@form[:author_alias_registry_id]} type="hidden" label="Author alias registry" />
+            <.selected_author_alias author_alias_registry_form={@form[:author_alias_registry_id]} notify_component={@myself} />
+          </div>
+        <% end %>
+
+        <:actions>
+          <.save_button phx-disable-with="Saving...">
+            Save
+          </.save_button>
+          <.cancel_button phx-click="cancel" phx-target={@myself}>
+            Cancel
+          </.cancel_button>
+        </:actions>
+      </.simple_form>
+
+      <.modal
+        :if={@select_author_alias_open? == true}
+        id="select-author-alias-modal"
+        show
+        on_cancel={JS.push("close-select-author-alias", target: @myself)}
+      >
+        <.live_component
+          id="select-author-alias"
+          module={SelectAuthorAlias}
+          current_user={@current_user}
+          notify_component={@myself}
+        />
+      </.modal>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign(:select_author_alias_open?, false)
+     |> assign_form()}
+  end
+
+  @impl true
+  def handle_event("validate", %{"author" => author_params}, socket) do
+    {:noreply, assign(socket, form: AshPhoenix.Form.validate(socket.assigns.form, author_params))}
+  end
+
+  def handle_event("save", %{"author" => author_params}, socket) do
+    case AshPhoenix.Form.submit(socket.assigns.form,
+           params: author_params,
+           actor: socket.assigns.current_user
+         ) do
+      {:ok, author} ->
+        notify_parent({:saved, author})
+
+        socket =
+          socket
+          |> put_flash(:info, "Author #{socket.assigns.form.source.type}d successfully")
+          |> redirect(to: patch_url(socket.assigns.action, author.id))
+
+        {:noreply, socket}
+
+      {:error, form} ->
+        {:noreply, assign(socket, form: form)}
+    end
+  end
+
+  def handle_event("cancel", _params, socket) do
+    author = socket.assigns.author
+    author_id = if author == nil, do: nil, else: author.id
+
+    socket =
+      socket
+      |> push_navigate(to: patch_url(socket.assigns.action, author_id))
+
+    {:noreply, socket}
+  end
+
+  defp notify_parent(msg), do: send(self(), {__MODULE__, msg})
+
+  defp assign_form(
+         %{assigns: %{author: author, alternative_author_id: alternative_author_id}} = socket
+       ) do
+    alias_id =
+      if alternative_author_id == nil do
+        nil
+      else
+        alternative_author = Metadata.get_author_by_id!(alternative_author_id)
+        alternative_author.author_alias_registry_id
+      end
+
+    form =
+      if author do
+        AshPhoenix.Form.for_update(author, :update,
+          as: "author",
+          actor: socket.assigns.current_user
+        )
+      else
+        form =
+          AshPhoenix.Form.for_create(Metadata.Author, :create,
+            as: "author",
+            actor: socket.assigns.current_user
+          )
+          |> set_author_alias_registry_id(alias_id)
+      end
+
+    assign(socket, form: to_form(form))
+  end
+
+  defp set_author_alias_registry_id(form, alias_id) do
+    if alias_id != nil do
+      form
+      |> AshPhoenix.Form.update_params(&Map.put(&1, "author_alias_registry_id", alias_id))
+    else
+      form
+    end
+  end
+
+  defp patch_url(action, author_id) do
+    case action do
+      :edit -> ~p"/authors/#{author_id}"
+      :new -> ~p"/authors"
+      _ -> ~p"/authors"
+    end
+  end
+
+  def handle_event("select-author-alias", %{"author-alias" => author_alias_id}, socket) do
+    socket =
+      socket
+      |> update(:form, fn form ->
+        form
+        |> AshPhoenix.Form.update_params(&Map.put(&1, "author_alias_registry_id", author_alias_id))
+      end)
+      |> assign(:select_author_alias_open?, false)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("open-select-author-alias", _params, socket) do
+    socket =
+      socket
+      |> assign(:select_author_alias_open?, true)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("close-select-author-alias", _params, socket) do
+    socket =
+      socket
+      |> assign(:select_author_alias_open?, false)
+
+    {:noreply, socket}
+  end
+end

lib/decentralised_book_index_web/live/author_live/index.ex

@@ -0,0 +1,146 @@
+defmodule DecentralisedBookIndexWeb.AuthorLive.Index do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.header class="pb-2">
+      Listing Authors
+    </.header>
+
+    <.search_resources
+      search_query={@search_query}
+      select_options={@select_options}
+      selected_option={@sort_by}
+      current_user={@current_user}
+      resource_type="author"
+      resource_new_url={~p"/authors/new"}
+    />
+
+    <%= if Enum.empty?(@page.results) do %>
+      <div class="flex justify-center ">
+        <div>
+          <p class="text-xl font-semibold py-5 dark:text-white">
+            No Authors
+          </p>
+        </div>
+      </div>
+    <% else %>
+      <div class="flex flex-wrap flex-[3_1_auto]">
+        <%= for author <- @page.results do %>
+          <.author_card
+            author={author}
+            current_user={@current_user}
+          />
+        <% end %>
+      </div>
+
+      <.pagination
+        endpoint={~p"/authors"}
+        page={@page}
+        page_params={@page_params}
+        params={@params}
+      />
+    <% end %>
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok,
+     socket
+     |> assign_new(:current_user, fn -> nil end)}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    search_query = Map.get(params, "query", "")
+    sort_by = Map.get(params, "sort_by", "name") |> validate_sort_by()
+    page_params = AshPhoenix.LiveView.page_from_params(params, 10)
+
+    page =
+      Metadata.search_author!(
+        search_query,
+        load: [:brief_description, :dbi_server],
+        query: [sort_input: sort_by],
+        page: page_params ++ [count: true],
+        actor: socket.assigns.current_user
+      )
+
+    socket =
+      socket
+      |> assign(:sort_by, sort_by)
+      |> assign(:search_query, search_query)
+      |> assign(:select_options, sort_options())
+      |> assign(:page_params, page_params)
+      |> assign(:page, page)
+      |> assign(:params, params)
+      |> apply_action(socket.assigns.live_action, params)
+
+    {:noreply, socket}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit Author")
+    |> assign(
+      :author,
+      Ash.get!(DecentralisedBookIndex.Metadata.Author, id, actor: socket.assigns.current_user)
+    )
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New Author")
+    |> assign(:author, nil)
+  end
+
+  defp apply_action(socket, :index, _params) do
+    socket
+    |> assign(:page_title, "Listing Authors")
+    |> assign(:author, nil)
+  end
+
+  @impl true
+  def handle_info({DecentralisedBookIndexWeb.AuthorLive.FormComponent, {:saved, _author}}, socket) do
+    {:noreply, socket}
+  end
+
+  defp sort_options do
+    [
+      {"Sort by name", "name"},
+      {"Sort by recently updated", "-updated_at"},
+      {"Sort by recently added", "-inserted_at"}
+    ]
+  end
+
+  def validate_sort_by(key) do
+    valid_keys = Enum.map(sort_options(), &elem(&1, 1))
+
+    if key in valid_keys do
+      key
+    else
+      List.first(valid_keys)
+    end
+  end
+
+  @impl true
+  def handle_event("change-sort", %{"sort_by" => sort_by}, socket) do
+    params =
+      socket.assigns.params
+      |> Map.put("sort_by", sort_by)
+
+    {:noreply, push_patch(socket, to: ~p"/authors?#{params}")}
+  end
+
+  @impl true
+  def handle_event("search", %{"query" => query}, socket) do
+    params =
+      socket.assigns.params
+      |> Map.put("query", query)
+
+    {:noreply, push_patch(socket, to: ~p"/authors?#{params}")}
+  end
+end

lib/decentralised_book_index_web/live/author_live/show.ex

@@ -0,0 +1,124 @@
+defmodule DecentralisedBookIndexWeb.AuthorLive.Show do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Accounts.Role
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.header class="flex-col lg:flex-row">
+      {@author.name}
+
+      <:actions>
+        <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
+          <div class="flex flex-row gap-2">
+            <.add_button_link patch={~p"/authors/#{@author}/new"}>
+              Alias
+            </.add_button_link>
+            <%= if is_nil(@author.dbi_server) do %>
+              <.link patch={~p"/authors/#{@author}/edit"}>
+                <.edit_button>
+                  Edit
+                </.edit_button>
+              </.link>
+            <% end %>
+          </div>
+        <% end %>
+      </:actions>
+    </.header>
+
+    <div class="flex flex-col items-start gap-6 max-w-6xl mx-auto p-4 bg-gray-900 rounded-lg transition-all duration-300 md:prose md:block">
+      <%= if @author.avatar_url != nil do %>
+        <img
+          class="w-36 h-36 mb-3 rounded-full shadow-lg mx-auto md:float-left md:mr-4"
+          src={@author.avatar_url}
+          alt={"#{@author.name} image"}
+        />
+      <% else %>
+        <div class="relative w-36 h-36 overflow-hidden bg-gray-100 rounded-full dark:bg-gray-600 mx-auto md:float-left md:mr-4">
+          <svg
+            class="absolute w-36 h-36 text-gray-400"
+            fill="currentColor"
+            viewBox="0 0 20 20"
+            xmlns="http://www.w3.org/2000/svg"
+          >
+            <path
+              fill-rule="evenodd"
+              d="M10 9a3 3 0 100-6 3 3 0 000 6zm-7 9a7 7 0 1114 0H3z"
+              clip-rule="evenodd"
+            >
+            </path>
+          </svg>
+        </div>
+      <% end %>
+
+      <div class="flex-1 pt-2 lg:pt-0 min-h-36">
+        <h2 class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Description</h2>
+        <p class="text-gray-300 leading-relaxed">
+          {@author.description}
+        </p>
+
+        <%= if not is_nil(@author.dbi_server) do %>
+          <dl>
+            <dt class="mt-4 mb-2 font-semibold leading-none text-gray-900 dark:text-white">
+              From Server
+            </dt>
+            <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">
+              <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
+                <.link navigate={~p"/servers/#{@author.dbi_server.id}/"} class="hover:underline">
+                  {@author.dbi_server.name}
+                </.link>
+              <% else %>
+                <.link navigate={@author.dbi_server.url} class="hover:underline">
+                  {@author.dbi_server.name}
+                </.link>
+              <% end %>
+            </dd>
+          </dl>
+        <% end %>
+      </div>
+    </div>
+
+    <%= if @alternative_names != [] do %>
+      <h2 class="mb-2 text-lg font-semibold text-gray-900 dark:text-white mt-10">
+        Alternatives names
+      </h2>
+      <ul class="max-w-md space-y-1 text-gray-700 list-disc list-inside dark:text-white">
+        <%= for alias_author <- @alternative_names do %>
+          <.link navigate={~p"/authors/#{alias_author.id}"}>
+            <li>
+              <span class="no-underline hover:underline">
+                {alias_author.name}
+              </span>
+            </li>
+          </.link>
+        <% end %>
+      </ul>
+    <% end %>
+
+    <.back navigate={~p"/authors"}>Back to authors</.back>
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok, socket}
+  end
+
+  @impl true
+  def handle_params(%{"id" => id}, _, socket) do
+    author =
+      Ash.get!(DecentralisedBookIndex.Metadata.Author, id, load: [:dbi_server], actor: socket.assigns.current_user)
+
+    alternative_names = DecentralisedBookIndex.Metadata.get_author_alternative_names!(author)
+
+    {:noreply,
+     socket
+     |> assign(:page_title, page_title(socket.assigns.live_action))
+     |> assign(:author, author)
+     |> assign(:alternative_names, alternative_names)}
+  end
+
+  defp page_title(:show), do: "Show Author"
+  defp page_title(:edit), do: "Edit Author"
+end

lib/decentralised_book_index_web/live/book_live/edit.ex

@@ -0,0 +1,69 @@
+defmodule DecentralisedBookIndexWeb.BookLive.Edit do
+  use DecentralisedBookIndexWeb, :live_view
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.live_component
+      module={DecentralisedBookIndexWeb.BookLive.FormComponent}
+      id={(@book && @book.id) || :new}
+      title={@page_title}
+      current_user={@current_user}
+      action={@live_action}
+      book={@book}
+      alternative_book_id={@alternative_book_id}
+    />
+    """
+  end
+
+  @impl true
+  def mount(params, _session, socket) do
+    alternative_book_id = Map.get(params, "alternative_book_id", nil)
+
+    {:ok,
+     socket
+     |> assign(:alternative_book_id, alternative_book_id)
+     |> assign_new(:current_user, fn -> nil end)}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    socket =
+      socket
+      |> apply_action(socket.assigns.live_action, params)
+
+    {:noreply, socket}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit Book")
+    |> assign(
+      :book,
+      Ash.get!(DecentralisedBookIndex.Metadata.Book, id, load: [:dbi_server], actor: socket.assigns.current_user)
+    )
+    |> redirect_if_not_editable()
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New Book")
+    |> assign(:book, nil)
+  end
+
+  @impl true
+  def handle_info({DecentralisedBookIndexWeb.BookLive.FormComponent, {:saved, _book}}, socket) do
+    {:noreply, socket}
+  end
+
+  defp redirect_if_not_editable(socket) do
+    if not is_nil(socket.assigns.book.dbi_server) do
+      socket =
+        socket
+        |> Phoenix.LiveView.put_flash(:error, "Can't edit other server's data!")
+        |> Phoenix.LiveView.redirect(to: ~p"/books/#{socket.assigns.book}")
+    else
+      socket
+    end
+  end
+end

lib/decentralised_book_index_web/live/book_live/form_component.ex

@@ -0,0 +1,488 @@
+defmodule DecentralisedBookIndexWeb.BookLive.FormComponent do
+  use DecentralisedBookIndexWeb, :live_component
+
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        {@title}
+      </.header>
+
+      <.simple_form
+        for={@form}
+        id="book-form"
+        phx-target={@myself}
+        phx-change="validate"
+        phx-submit="save"
+      >
+        <%= if @form.source.type == :create do %>
+          <.input field={@form[:title]} type="text" label="Title" />
+          <.input field={@form[:cover_image_url]} type="text" label="Cover image url" />
+          <.input
+            field={@form[:description]}
+            type="textarea"
+            label="Description"
+          />
+          <.bids_inputs form={@form} myself={@myself} />
+          <.author_roles_inputs form={@form} myself={@myself} notify_component={@myself} />
+          <.input field={@form[:format]} type="text" label="Format" />
+          <.input
+            field={@form[:language]}
+            type="text"
+            label="Language"
+          />
+          <.input field={@form[:page_count]} type="number" label="Page count" />
+          <div>
+            <.input field={@form[:publisher_id]} type="text" label="Publisher" type="hidden" show_errors?={false} />
+            <.selected_publisher publisher_form={@form[:publisher_id]} notify_component={@myself} />
+          </div>
+          <.input field={@form[:published]} type="date" label="Published" />
+          <div>
+            <.input field={@form[:book_editions_registry_id]} type="hidden" label="Book Editions" />
+            <.selected_book_edition book_editions_registry_form={@form[:book_editions_registry_id]} notify_component={@myself} />
+          </div>
+        <% end %>
+        <%= if @form.source.type == :update do %>
+          <.input field={@form[:title]} type="text" label="Title" />
+          <.input field={@form[:cover_image_url]} type="text" label="Cover image url" />
+          <.input
+            field={@form[:description]}
+            type="textarea"
+            label="Description"
+          />
+          <.bids_inputs form={@form} myself={@myself} />
+          <.author_roles_inputs form={@form} myself={@myself} notify_component={@myself} />
+          <.input field={@form[:format]} type="text" label="Format" />
+          <.input
+            field={@form[:language]}
+            type="text"
+            label="Language"
+          />
+          <.input field={@form[:page_count]} type="number" label="Page count" />
+          <div>
+            <.input field={@form[:publisher_id]} type="text" label="Publisher" type="hidden" show_errors?={false} />
+            <.selected_publisher publisher_form={@form[:publisher_id]} notify_component={@myself} />
+          </div>
+          <.input field={@form[:published]} type="date" label="Published" />
+          <div>
+            <.input field={@form[:book_editions_registry_id]} type="hidden" label="Book Editions" />
+            <.selected_book_edition book_editions_registry_form={@form[:book_editions_registry_id]} notify_component={@myself} />
+          </div>
+        <% end %>
+
+        <:actions>
+          <.save_button phx-disable-with="Saving...">
+            Save
+          </.save_button>
+          <.cancel_button phx-click="cancel" phx-target={@myself}>
+            Cancel
+          </.cancel_button>
+        </:actions>
+      </.simple_form>
+
+      <.modal
+        :if={@select_publisher_open? == true}
+        id="select-publisher-modal"
+        show
+        on_cancel={JS.push("close-select-publisher", target: @myself)}
+      >
+        <.live_component
+          id="select-publisher"
+          module={SelectPublisher}
+          current_user={@current_user}
+          notify_component={@myself}
+        />
+      </.modal>
+
+      <.modal
+        :if={@select_book_edition_open? == true}
+        id="select-book-edition-modal"
+        show
+        on_cancel={JS.push("close-select-book-edition", target: @myself)}
+      >
+        <.live_component
+          id="select-book-edition"
+          module={SelectBookEdition}
+          current_user={@current_user}
+          notify_component={@myself}
+        />
+      </.modal>
+
+      <.modal
+        :if={@select_author_open? == true}
+        id="select-author-modal"
+        show
+        on_cancel={JS.push("close-select-author", target: @myself)}
+      >
+        <.live_component
+          id="select-author"
+          module={SelectAuthor}
+          current_user={@current_user}
+          notify_component={@myself}
+          form_path={@form_path}
+        />
+      </.modal>
+    </div>
+    """
+  end
+
+  def bids_inputs(assigns) do
+    ~H"""
+    <h2 class="font-semibold leading-8 text-zinc-800 dark:text-white">Book ids</h2>
+
+    <table class="w-full">
+      <thead class="border-b border-zinc-100">
+        <tr>
+          <th class="text-left font-medium text-sm pb-1 px-3 w-10"></th>
+          <th class="text-left font-medium text-sm pb-1 px-3 w-36 dark:text-white">Type</th>
+          <th class="text-left font-medium text-sm pb-1 px-3 dark:text-white">Id</th>
+          <th class="text-left font-medium text-sm pb-1 px-3 w-12"></th>
+        </tr>
+      </thead>
+      <tbody phx-hook="bidSort" id="bidSort" phx-target={@myself}>
+        <.inputs_for :let={bid_form} field={@form[:bids]}>
+          <tr data-id={bid_form.index}>
+            <td class="px-3 w-10 pt-2">
+              <svg class="w-6 h-6 text-gray-800 dark:text-white handle cursor-pointer" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
+                <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="m8 15 4 4 4-4m0-6-4-4-4 4"/>
+              </svg>
+            </td>
+            <td class="px-3 w-36">
+              <label for={bid_form[:type].id} class="hidden">Type</label>
+              <.input field={bid_form[:type]} />
+            </td>
+            <td class="px-3">
+              <label for={bid_form[:bid].id} class="hidden">Id</label>
+              <.input field={bid_form[:bid]} />
+            </td>
+            <td class="flex items-center justify-center w-12 pt-2">
+              <.button_link
+                phx-click="remove-bid"
+                phx-value-path={bid_form.name}
+                phx-target={@myself}
+                kind="error"
+                size="xs"
+                inverse
+              >
+                <svg class="w-6 h-6 text-gray-800 dark:text-white" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 24 24">
+                  <path fill-rule="evenodd" d="M8.586 2.586A2 2 0 0 1 10 2h4a2 2 0 0 1 2 2v2h3a1 1 0 1 1 0 2v12a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V8a1 1 0 0 1 0-2h3V4a2 2 0 0 1 .586-1.414ZM10 6h4V4h-4v2Zm1 4a1 1 0 1 0-2 0v8a1 1 0 1 0 2 0v-8Zm4 0a1 1 0 1 0-2 0v8a1 1 0 1 0 2 0v-8Z" clip-rule="evenodd"/>
+                </svg>
+              </.button_link>
+            </td>
+          </tr>
+        </.inputs_for>
+      </tbody>
+    </table>
+
+    <.add_button_link phx-click="add-bid" phx-target={@myself} class="w-44">
+      Add Book Id
+    </.add_button_link>
+    """
+  end
+
+  @impl true
+  def handle_event("add-bid", _params, socket) do
+    socket =
+      update(socket, :form, fn form ->
+        AshPhoenix.Form.add_form(form, :bids)
+      end)
+
+    {:noreply, socket}
+  end
+
+  @impl true
+  def handle_event("remove-bid", %{"path" => path}, socket) do
+    socket =
+      update(socket, :form, fn form ->
+        AshPhoenix.Form.remove_form(form, path)
+      end)
+
+    {:noreply, socket}
+  end
+
+  @impl true
+  def handle_event("reorder-bids", %{"order" => order}, socket) do
+    socket =
+      update(socket, :form, fn form ->
+        AshPhoenix.Form.sort_forms(form, [:bids], order)
+      end)
+
+    {:noreply, socket}
+  end
+
+  def author_roles_inputs(assigns) do
+    ~H"""
+    <h2 class="font-semibold leading-8 text-zinc-800 dark:text-white">Authors</h2>
+
+    <table class="w-full">
+      <thead class="border-b border-zinc-100">
+        <tr>
+          <th class="text-left font-medium text-sm pb-1 px-3 w-10"></th>
+          <th class="text-left font-medium text-sm pb-1 px-3 w-48 dark:text-white">Author</th>
+          <th class="text-left font-medium text-sm pb-1 px-3 dark:text-white">Role</th>
+          <th class="text-left font-medium text-sm pb-1 px-3 w-12"></th>
+        </tr>
+      </thead>
+      <tbody phx-hook="authorRoleSort" id="authorRoleSort" phx-target={@myself}>
+        <.inputs_for :let={author_roles_form} field={@form[:author_roles]}>
+          <tr data-id={author_roles_form.index}>
+            <td class="px-3 w-10 pt-2">
+              <svg class="w-6 h-6 text-gray-800 dark:text-white handle cursor-pointer" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="none" viewBox="0 0 24 24">
+                <path stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="m8 15 4 4 4-4m0-6-4-4-4 4"/>
+              </svg>
+            </td>
+            <td class="px-3 w-48">
+              <label for={author_roles_form[:author_id].id} class="hidden">Type</label>
+              <.input field={author_roles_form[:author_id]} type="hidden" show_errors?={false} />
+              <.selected_author
+                author_form={author_roles_form[:author_id]}
+                notify_component={@notify_component}
+                form_path={author_roles_form.name}
+                class="mt-2 w-full"
+              />
+            </td>
+            <td class="px-3">
+              <label for={author_roles_form[:role].id} class="hidden">Id</label>
+              <.input field={author_roles_form[:role]} />
+            </td>
+            <td class="flex items-center justify-center w-12 pt-2">
+              <.button_link
+                phx-click="remove-author-role"
+                phx-value-path={author_roles_form.name}
+                phx-target={@myself}
+                kind="error"
+                size="xs"
+                inverse
+              >
+                <svg class="w-6 h-6 text-gray-800 dark:text-white" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 24 24">
+                  <path fill-rule="evenodd" d="M8.586 2.586A2 2 0 0 1 10 2h4a2 2 0 0 1 2 2v2h3a1 1 0 1 1 0 2v12a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V8a1 1 0 0 1 0-2h3V4a2 2 0 0 1 .586-1.414ZM10 6h4V4h-4v2Zm1 4a1 1 0 1 0-2 0v8a1 1 0 1 0 2 0v-8Zm4 0a1 1 0 1 0-2 0v8a1 1 0 1 0 2 0v-8Z" clip-rule="evenodd"/>
+                </svg>
+              </.button_link>
+            </td>
+          </tr>
+        </.inputs_for>
+      </tbody>
+    </table>
+
+    <.add_button_link phx-click="add-author-role" phx-target={@myself} class="w-40">
+      Add Author
+    </.add_button_link>
+    """
+  end
+
+  @impl true
+  def handle_event("add-author-role", _params, socket) do
+    socket =
+      update(socket, :form, fn form ->
+        AshPhoenix.Form.add_form(form, :author_roles)
+      end)
+
+    {:noreply, socket}
+  end
+
+  @impl true
+  def handle_event("remove-author-role", %{"path" => path}, socket) do
+    socket =
+      update(socket, :form, fn form ->
+        AshPhoenix.Form.remove_form(form, path)
+      end)
+
+    {:noreply, socket}
+  end
+
+  @impl true
+  def handle_event("reorder-author-role", %{"order" => order}, socket) do
+    socket =
+      update(socket, :form, fn form ->
+        AshPhoenix.Form.sort_forms(form, [:author_roles], order)
+      end)
+
+    {:noreply, socket}
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign(:select_publisher_open?, false)
+     |> assign(:select_author_open?, false)
+     |> assign(:select_book_edition_open?, false)
+     |> assign(:form_path, nil)
+     |> assign_form()}
+  end
+
+  @impl true
+  def handle_event("validate", %{"book" => book_params}, socket) do
+    {:noreply, assign(socket, form: AshPhoenix.Form.validate(socket.assigns.form, book_params))}
+  end
+
+  def handle_event("save", %{"book" => book_params}, socket) do
+    case AshPhoenix.Form.submit(socket.assigns.form, params: book_params) do
+      {:ok, book} ->
+        notify_parent({:saved, book})
+
+        socket =
+          socket
+          |> put_flash(:info, "Book #{socket.assigns.form.source.type}d successfully")
+          |> redirect(to: patch_url(socket.assigns.action, book.id))
+
+        {:noreply, socket}
+
+      {:error, form} ->
+        {:noreply, assign(socket, form: form)}
+    end
+  end
+
+  def handle_event("cancel", _params, socket) do
+    book = socket.assigns.book
+    book_id = if book == nil, do: nil, else: book.id
+
+    socket =
+      socket
+      |> push_navigate(to: patch_url(socket.assigns.action, book_id))
+
+    {:noreply, socket}
+  end
+
+  defp notify_parent(msg), do: send(self(), {__MODULE__, msg})
+
+  defp assign_form(%{assigns: %{book: book, alternative_book_id: alternative_book_id}} = socket) do
+    alternative_edition_id =
+      if alternative_book_id == nil do
+        nil
+      else
+        alternative_book = Metadata.get_book_by_id!(alternative_book_id)
+        alternative_book.book_editions_registry_id
+      end
+
+    form =
+      if book do
+        book =
+          book
+          |> Ash.load!([:bids, :author_roles, :publisher])
+
+        AshPhoenix.Form.for_update(book, :update, as: "book", actor: socket.assigns.current_user)
+      else
+        form =
+          AshPhoenix.Form.for_create(DecentralisedBookIndex.Metadata.Book, :create,
+            as: "book",
+            actor: socket.assigns.current_user
+          )
+          |> set_book_edition_registry_id(alternative_edition_id)
+      end
+
+    assign(socket, form: to_form(form))
+  end
+
+  defp set_book_edition_registry_id(form, alternative_edition_id) do
+    if alternative_edition_id != nil do
+      form
+      |> AshPhoenix.Form.update_params(
+        &Map.put(&1, "book_editions_registry_id", alternative_edition_id)
+      )
+    else
+      form
+    end
+  end
+
+  defp patch_url(action, book_id) do
+    case action do
+      :edit -> ~p"/books/#{book_id}"
+      :new -> ~p"/books"
+      _ -> ~p"/books"
+    end
+  end
+
+  def handle_event("select-publisher", %{"publisher" => publisher_id}, socket) do
+    socket =
+      socket
+      |> update(:form, fn form ->
+        form
+        |> AshPhoenix.Form.update_params(&Map.put(&1, "publisher_id", publisher_id))
+      end)
+      |> assign(:select_publisher_open?, false)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("open-select-publisher", _params, socket) do
+    socket =
+      socket
+      |> assign(:select_publisher_open?, true)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("close-select-publisher", _params, socket) do
+    socket =
+      socket
+      |> assign(:select_publisher_open?, false)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("select-author", %{"author" => author_id, "path" => path}, socket) do
+    socket =
+      socket
+      |> update(:form, fn form ->
+        form
+        |> AshPhoenix.Form.update_form(path, fn nested_form ->
+          params = Map.put(nested_form.params, "author_id", author_id)
+          AshPhoenix.Form.validate(nested_form, params)
+        end)
+      end)
+      |> assign(:select_author_open?, false)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("open-select-author", %{"path" => path}, socket) do
+    socket =
+      socket
+      |> assign(:select_author_open?, true)
+      |> assign(:form_path, path)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("close-select-author", _params, socket) do
+    socket =
+      socket
+      |> assign(:select_author_open?, false)
+      |> assign(:form_path, nil)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("select-book-edition", %{"book-edition" => book_edition_id}, socket) do
+    socket =
+      socket
+      |> update(:form, fn form ->
+        form
+        |> AshPhoenix.Form.update_params(&Map.put(&1, "book_editions_registry_id", book_edition_id))
+      end)
+      |> assign(:select_book_edition_open?, false)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("open-select-book-edition", _params, socket) do
+    socket =
+      socket
+      |> assign(:select_book_edition_open?, true)
+
+    {:noreply, socket}
+  end
+
+  def handle_event("close-select-book-edition", _params, socket) do
+    socket =
+      socket
+      |> assign(:select_book_edition_open?, false)
+
+    {:noreply, socket}
+  end
+end

lib/decentralised_book_index_web/live/book_live/index.ex

@@ -0,0 +1,218 @@
+defmodule DecentralisedBookIndexWeb.BookLive.Index do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.header class="pb-2">
+      Listing Books
+    </.header>
+
+    <.book_search
+      search_query={@search_query}
+      search_mode={@search_mode}
+      search_mode_options={@search_mode_options}
+      select_options={@select_options}
+      selected_option={@sort_by}
+      current_user={@current_user}
+    />
+
+    <%= if Enum.empty?(@page.results) do %>
+      <div class="flex justify-center ">
+        <div>
+          <p class="text-xl font-semibold py-5 dark:text-white">
+            No Books
+          </p>
+        </div>
+      </div>
+    <% else %>
+      <div class="flex flex-wrap flex-[3_1_auto]">
+        <%= for book <- @page.results do %>
+          <.book_card
+            book={book}
+            current_user={@current_user}
+          />
+        <% end %>
+      </div>
+
+      <.pagination
+        endpoint={~p"/books"}
+        page={@page}
+        page_params={@page_params}
+        params={@params}
+      />
+    <% end %>
+
+    <.modal :if={@live_action in [:new, :edit]} id="book-modal" show on_cancel={JS.patch(~p"/books")}>
+      <.live_component
+        module={DecentralisedBookIndexWeb.BookLive.FormComponent}
+        id={(@book && @book.id) || :new}
+        title={@page_title}
+        current_user={@current_user}
+        action={@live_action}
+        book={@book}
+        patch={~p"/books"}
+      />
+    </.modal>
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok, socket}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    search_query = Map.get(params, "query", "")
+    sort_by = Map.get(params, "sort_by", "title") |> validate_sort_by()
+    search_mode = Map.get(params, "search_mode", "title") |> validate_search_mode()
+    page_params = AshPhoenix.LiveView.page_from_params(params, 10)
+
+    page =
+      search(
+        search_mode,
+        search_query,
+        page_params,
+        sort_by: sort_by,
+        actor: socket.assigns[:current_user]
+      )
+
+    socket =
+      socket
+      |> stream(
+        :books,
+        Ash.read!(DecentralisedBookIndex.Metadata.Book, actor: socket.assigns[:current_user])
+      )
+      |> assign(:sort_by, sort_by)
+      |> assign(:search_query, search_query)
+      |> assign(:search_mode, search_mode)
+      |> assign(:search_mode_options, search_mode_options())
+      |> assign(:select_options, sort_options())
+      |> assign(:page_params, page_params)
+      |> assign(:page, page)
+      |> assign(:params, params)
+      |> assign_new(:current_user, fn -> nil end)
+      |> apply_action(socket.assigns.live_action, params)
+
+    {:noreply, socket}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit Book")
+    |> assign(
+      :book,
+      Ash.get!(DecentralisedBookIndex.Metadata.Book, id, actor: socket.assigns.current_user)
+    )
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New Book")
+    |> assign(:book, nil)
+  end
+
+  defp apply_action(socket, :index, _params) do
+    socket
+    |> assign(:page_title, "Listing Books")
+    |> assign(:book, nil)
+  end
+
+  @impl true
+  def handle_info({DecentralisedBookIndexWeb.BookLive.FormComponent, {:saved, _book}}, socket) do
+    {:noreply, socket}
+  end
+
+  defp sort_options do
+    [
+      {"Sort by title", "title"},
+      {"Sort by recently updated", "-updated_at"},
+      {"Sort by recently added", "-inserted_at"}
+    ]
+  end
+
+  def validate_sort_by(key) do
+    valid_keys = Enum.map(sort_options(), &elem(&1, 1))
+
+    if key in valid_keys do
+      key
+    else
+      List.first(valid_keys)
+    end
+  end
+
+  @impl true
+  def handle_event("change-sort", %{"sort_by" => sort_by}, socket) do
+    params =
+      socket.assigns.params
+      |> Map.put("sort_by", sort_by)
+
+    {:noreply, push_patch(socket, to: ~p"/books?#{params}")}
+  end
+
+  defp search_mode_options do
+    [
+      {"Search by title", "title"},
+      {"Search by isbn13", "isbn13"},
+      {"Search by isbn", "isbn"},
+      {"Search by asin", "asin"}
+    ]
+  end
+
+  def validate_search_mode(key) do
+    valid_keys = Enum.map(search_mode_options(), &elem(&1, 1))
+
+    if key in valid_keys do
+      key
+    else
+      List.first(valid_keys)
+    end
+  end
+
+  @impl true
+  def handle_event("change-search-mode", %{"search_mode" => search_mode}, socket) do
+    params =
+      socket.assigns.params
+      |> Map.put("search_mode", search_mode)
+
+    {:noreply, push_patch(socket, to: ~p"/books?#{params}")}
+  end
+
+  def search(search_mode, search_query, page_params, opts \\ []) do
+    sort_by = Keyword.get(opts, :sort_by, nil)
+    actor = Keyword.get(opts, :actor, nil)
+
+    case search_mode do
+      "title" ->
+        Metadata.search_book!(
+          search_query,
+          load: [:brief_description, :dbi_server],
+          query: [sort_input: sort_by],
+          page: page_params ++ [count: true],
+          actor: actor
+        )
+
+      type ->
+        Metadata.search_book_by_bid!(
+          type,
+          search_query,
+          load: [:brief_description, :dbi_server],
+          query: [sort_input: sort_by],
+          page: page_params ++ [count: true],
+          actor: actor
+        )
+    end
+  end
+
+  @impl true
+  def handle_event("search", %{"query" => query}, socket) do
+    params =
+      socket.assigns.params
+      |> Map.put("query", query)
+
+    {:noreply, push_patch(socket, to: ~p"/books?#{params}")}
+  end
+end

lib/decentralised_book_index_web/live/book_live/show.ex

@@ -0,0 +1,165 @@
+defmodule DecentralisedBookIndexWeb.BookLive.Show do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.Accounts.Role
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.header class="flex-col lg:flex-row">
+      {@book.title}
+      <:subtitle>
+        <.authors book={@book} />
+      </:subtitle>
+
+      <:actions>
+        <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
+          <div class="flex flex-row gap-2">
+            <.add_button_link patch={~p"/books/#{@book}/new"}>
+              Edition
+            </.add_button_link>
+            <%= if is_nil(@book.dbi_server) do %>
+              <.link patch={~p"/books/#{@book}/edit"}>
+                <.edit_button>
+                  Edit
+                </.edit_button>
+              </.link>
+            <% end %>
+          </div>
+        <% end %>
+      </:actions>
+    </.header>
+
+    <div class="mb-4">
+      <%= if @book.cover_image_url != nil do %>
+        <img class="w-36 shadow-lg mt-14 mx-auto object-cover" src={@book.cover_image_url} alt={"#{@book.title} image"}/>
+      <% else %>
+        <div class="relative w-36 h-36 overflow-hidden mt-14 mx-auto">
+          <svg class="w-36 h-36 text-gray-800 dark:text-white" aria-hidden="true" xmlns="http://www.w3.org/2000/svg" width="24" height="24" fill="currentColor" viewBox="0 0 24 24">
+              <path fill-rule="evenodd" d="M6 2a2 2 0 0 0-2 2v15a3 3 0 0 0 3 3h12a1 1 0 1 0 0-2h-2v-2h2a1 1 0 0 0 1-1V4a2 2 0 0 0-2-2h-8v16h5v2H7a1 1 0 1 1 0-2h1V2H6Z" clip-rule="evenodd"/>
+          </svg>
+        </div>
+      <% end %>
+    </div>
+
+    <div>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Description</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@book.description}</dd>
+      </dl>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Publisher</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@book.publisher.name}</dd>
+      </dl>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Published</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@book.published}</dd>
+      </dl>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Format</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@book.format}</dd>
+      </dl>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Page Count</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@book.page_count}</dd>
+      </dl>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Language</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@book.language}</dd>
+      </dl>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Identifiers</dt>
+        <%= for bid <- @book.bids do %>
+          <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{bid.type}: {bid.bid}</dd>
+        <% end %>
+      </dl>
+      <%= if not is_nil(@book.dbi_server) do %>
+        <dl>
+          <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">From Server</dt>
+          <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">
+            <%= if @current_user != nil and Role.can_moderate?(@current_user.role) do %>
+              <.link navigate={~p"/servers/#{@book.dbi_server.id}/"} class="hover:underline">
+                {@book.dbi_server.name}
+              </.link>
+            <% else %>
+              <.link navigate={@book.dbi_server.url} class="hover:underline">
+                {@book.dbi_server.name}
+              </.link>
+            <% end %>
+          </dd>
+        </dl>
+      <% end %>
+    </div>
+
+    <%= if not Enum.empty?(@alternative_editions) do %>
+      <h1 class="text-lg font-semibold leading-8 text-zinc-800 dark:text-white">Editions</h1>
+      <div class="flex flex-wrap flex-[3_1_auto]">
+        <%= for book <- @alternative_editions do %>
+          <.book_card
+            book={book}
+            current_user={@current_user}
+          />
+        <% end %>
+      </div>
+    <% end %>
+
+    <.back navigate={~p"/books"}>Back to books</.back>
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok, socket}
+  end
+
+  @impl true
+  def handle_params(%{"id" => id}, _, socket) do
+    book =
+      Ash.get!(Metadata.Book, id,
+        actor: socket.assigns.current_user,
+        load: [:bids, :author_roles, :publisher, :dbi_server]
+      )
+
+    alternative_editions = Metadata.get_book_alternative_editions!(book)
+
+    {:noreply,
+     socket
+     |> assign(:page_title, page_title(socket.assigns.live_action))
+     |> assign(:book, book)
+     |> assign(:alternative_editions, alternative_editions)}
+  end
+
+  defp page_title(:show), do: "Show Book"
+  defp page_title(:edit), do: "Edit Book"
+
+  attr :book, :map, required: true
+
+  def authors(assigns) do
+    author_roles = Metadata.get_author_roles_by_book_id!(assigns.book.id, load: [:author])
+    author_count = length(author_roles)
+
+    authors_string =
+      author_roles
+      |> Enum.map(fn author_role ->
+        if author_role.role in ["", nil] do
+          {"#{author_role.author.name}", author_role.author.id}
+        else
+          {"#{author_role.author.name} (#{author_role.role})", author_role.author.id}
+        end
+      end)
+      |> Enum.zip(1..author_count)
+
+    assigns =
+      assigns
+      |> assign(:authors_string, authors_string)
+      |> assign(:author_count, author_count)
+
+    ~H"""
+    <%= for {{name, id}, index} <- @authors_string do %>
+      <.link navigate={~p"/authors/#{id}/"} class="hover:underline">
+        {name}</.link><%= if {index} != {@author_count} do %>,<% end %>
+    <% end %>
+    """
+  end
+end

lib/decentralised_book_index_web/live/dbi_server_live/edit.ex

@@ -0,0 +1,59 @@
+defmodule DecentralisedBookIndexWeb.DbiServerLive.Edit do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.live_component
+      module={DecentralisedBookIndexWeb.DbiServerLive.FormComponent}
+      id={(@dbi_server && @dbi_server.id) || :new}
+      title={@page_title}
+      current_user={@current_user}
+      action={@live_action}
+      dbi_server={@dbi_server}
+    />
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok,
+     socket
+     |> assign_new(:current_user, fn -> nil end)}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    socket =
+      socket
+      |> assign(:params, params)
+      |> apply_action(socket.assigns.live_action, params)
+
+    {:noreply, socket}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit Server")
+    |> assign(
+      :dbi_server,
+      Ash.get!(Metadata.DBIServer, id, actor: socket.assigns.current_user)
+    )
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New Server")
+    |> assign(:dbi_server, nil)
+  end
+
+  @impl true
+  def handle_info(
+        {DecentralisedBookIndexWeb.DbiServerLive.FormComponent, {:saved, _dbi_server}},
+        socket
+      ) do
+    {:noreply, socket}
+  end
+end

lib/decentralised_book_index_web/live/dbi_server_live/form_component.ex

@@ -0,0 +1,110 @@
+defmodule DecentralisedBookIndexWeb.DbiServerLive.FormComponent do
+  use DecentralisedBookIndexWeb, :live_component
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        {@title}
+      </.header>
+
+      <.simple_form
+        for={@form}
+        id="dbi_server-form"
+        phx-target={@myself}
+        phx-change="validate"
+        phx-submit="save"
+      >
+        <%= if @form.source.type == :create do %>
+          <.input field={@form[:name]} type="text" label="Name" />
+          <.input field={@form[:url]} type="text" label="Url" />
+        <% end %>
+        <%= if @form.source.type == :update and is_nil(@form[:dbi_server_id].value) do %>
+          <.input field={@form[:name]} type="text" label="Name" />
+          <.input field={@form[:url]} type="text" label="Url" />
+        <% end %>
+        <.input field={@form[:sync_on?]} type="checkbox" label="Sync on" />
+
+        <:actions>
+          <.save_button phx-disable-with="Saving...">
+            Save
+          </.save_button>
+          <.cancel_button phx-click="cancel" phx-target={@myself}>
+            Cancel
+          </.cancel_button>
+        </:actions>
+      </.simple_form>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign_form()}
+  end
+
+  @impl true
+  def handle_event("validate", %{"dbi_server" => dbi_server_params}, socket) do
+    {:noreply,
+     assign(socket, form: AshPhoenix.Form.validate(socket.assigns.form, dbi_server_params))}
+  end
+
+  def handle_event("save", %{"dbi_server" => dbi_server_params}, socket) do
+    case AshPhoenix.Form.submit(socket.assigns.form, params: dbi_server_params) do
+      {:ok, dbi_server} ->
+        notify_parent({:saved, dbi_server})
+
+        socket =
+          socket
+          |> put_flash(:info, "Server #{socket.assigns.form.source.type}d successfully")
+          |> redirect(to: patch_url(socket.assigns.action, dbi_server.id))
+
+        {:noreply, socket}
+
+      {:error, form} ->
+        {:noreply, assign(socket, form: form)}
+    end
+  end
+
+  def handle_event("cancel", _params, socket) do
+    dbi_server = socket.assigns.dbi_server
+    dbi_server_id = if dbi_server == nil, do: nil, else: dbi_server.id
+
+    socket =
+      socket
+      |> push_navigate(to: patch_url(socket.assigns.action, dbi_server_id))
+
+    {:noreply, socket}
+  end
+
+  defp notify_parent(msg), do: send(self(), {__MODULE__, msg})
+
+  defp assign_form(%{assigns: %{dbi_server: dbi_server}} = socket) do
+    form =
+      if dbi_server do
+        AshPhoenix.Form.for_update(dbi_server, :update,
+          as: "dbi_server",
+          actor: socket.assigns.current_user
+        )
+      else
+        AshPhoenix.Form.for_create(DecentralisedBookIndex.Metadata.DBIServer, :create,
+          as: "dbi_server",
+          actor: socket.assigns.current_user
+        )
+      end
+
+    assign(socket, form: to_form(form))
+  end
+
+  defp patch_url(action, server_id) do
+    case action do
+      :edit -> ~p"/servers/#{server_id}"
+      :new -> ~p"/servers"
+      _ -> ~p"/servers"
+    end
+  end
+end

lib/decentralised_book_index_web/live/dbi_server_live/index.ex

@@ -0,0 +1,229 @@
+defmodule DecentralisedBookIndexWeb.DbiServerLive.Index do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Metadata
+  alias DecentralisedBookIndex.SyncTasks.SyncServerTask
+
+  alias DecentralisedBookIndex.Accounts.Role
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.header>
+      Listing Servers
+      <:actions>
+        <%= if @current_user != nil and Role.can_administrate?(@current_user.role) do %>
+          <div class="flex flex-row gap-2">
+            <div class="flex flex-row gap-2">
+              <.primary_button phx-click="sync">
+                Sync now
+              </.primary_button>
+            </div>
+            <div class="flex flex-row gap-2">
+              <.link patch={~p"/oban"}>
+                <.primary_button>
+                  Task dashboard
+                </.primary_button>
+              </.link>
+            </div>
+          </div>
+        <% end %>
+      </:actions>
+    </.header>
+
+    <div class="pt-2">
+      <.search_resources
+        search_query={@search_query}
+        select_options={@select_options}
+        selected_option={@sort_by}
+        current_user={@current_user}
+        resource_type="server"
+        resource_new_url={~p"/servers/new"}
+        moderator_role={:admin}
+      />
+    </div>
+
+    <%= if Enum.empty?(@page.results) do %>
+      <div class="flex justify-center ">
+        <div>
+          <p class="text-xl font-semibold py-5 dark:text-white">
+            No Servers
+          </p>
+        </div>
+      </div>
+    <% else %>
+      <div class="pt-2 flex flex-col gap-2">
+        <.table
+          id="dbi_servers"
+          rows={@page.results}
+          row_click={fn dbi_server -> JS.navigate(~p"/servers/#{dbi_server}") end}
+        >
+          <:col :let={dbi_server} label="Name">{dbi_server.name}</:col>
+
+          <:col :let={dbi_server} label="Url">{dbi_server.url}</:col>
+
+          <:action :let={dbi_server}>
+            <div class="sr-only">
+              <.link navigate={~p"/servers/#{dbi_server}"}>Show</.link>
+            </div>
+
+            <%= if @current_user != nil and Role.can_administrate?(@current_user.role) do %>
+              <.link patch={~p"/servers/#{dbi_server}/edit"}>Edit</.link>
+            <% end %>
+          </:action>
+        </.table>
+
+        <.pagination
+          endpoint={~p"/servers"}
+          page={@page}
+          page_params={@page_params}
+          params={@params}
+        />
+      </div>
+    <% end %>
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    if connected?(socket) do
+      Phoenix.PubSub.subscribe(DecentralisedBookIndex.PubSub, DecentralisedBookIndex.SyncWorkerManual.topic())
+    end
+
+    {:ok,
+     socket
+     |> assign_new(:current_user, fn -> nil end)}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    search_query = Map.get(params, "query", "")
+    sort_by = Map.get(params, "sort_by", "name") |> validate_sort_by()
+    page_params = AshPhoenix.LiveView.page_from_params(params, 10)
+
+    page =
+      Metadata.search_dbi_server!(
+        search_query,
+        query: [sort_input: sort_by],
+        page: page_params ++ [count: true],
+        actor: socket.assigns.current_user
+      )
+
+    socket =
+      socket
+      |> assign(:sort_by, sort_by)
+      |> assign(:search_query, search_query)
+      |> assign(:select_options, sort_options())
+      |> assign(:page_params, page_params)
+      |> assign(:page, page)
+      |> assign(:params, params)
+      |> apply_action(socket.assigns.live_action, params)
+
+    {:noreply, socket}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit server")
+    |> assign(
+      :dbi_server,
+      Ash.get!(DecentralisedBookIndex.Metadata.DBIServer, id, actor: socket.assigns.current_user)
+    )
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New server")
+    |> assign(:dbi_server, nil)
+  end
+
+  defp apply_action(socket, :index, _params) do
+    socket
+    |> assign(:page_title, "Listing servers")
+    |> assign(:dbi_server, nil)
+  end
+
+  @impl true
+  def handle_info(
+        {DecentralisedBookIndexWeb.DbiServerLive.FormComponent, {:saved, _dbi_server}},
+        socket
+      ) do
+    {:noreply, socket}
+  end
+
+  @impl true
+  def handle_event("delete", %{"id" => id}, socket) do
+    dbi_server =
+      Ash.get!(DecentralisedBookIndex.Metadata.DBIServer, id, actor: socket.assigns.current_user)
+
+    Ash.destroy!(dbi_server, actor: socket.assigns.current_user)
+
+    {:noreply, socket}
+  end
+
+  defp sort_options do
+    [
+      {"Sort by name", "name"},
+      {"Sort by recently updated", "-updated_at"},
+      {"Sort by recently added", "-inserted_at"}
+    ]
+  end
+
+  def validate_sort_by(key) do
+    valid_keys = Enum.map(sort_options(), &elem(&1, 1))
+
+    if key in valid_keys do
+      key
+    else
+      List.first(valid_keys)
+    end
+  end
+
+  @impl true
+  def handle_event("change-sort", %{"sort_by" => sort_by}, socket) do
+    params =
+      socket.assigns.params
+      |> Map.put("sort_by", sort_by)
+
+    {:noreply, push_patch(socket, to: ~p"/servers?#{params}")}
+  end
+
+  @impl true
+  def handle_event("search", %{"query" => query}, socket) do
+    params =
+      socket.assigns.params
+      |> Map.put("query", query)
+
+    {:noreply, push_patch(socket, to: ~p"/servers?#{params}")}
+  end
+
+  @impl true
+  def handle_event("sync", _params, socket) do
+    case DecentralisedBookIndex.SyncWorkerManual.new(%{}) |> Oban.insert() do
+      {:ok, _job} ->
+        {:noreply, put_flash(socket, :info, "Task started")}
+
+      {:error, reason} ->
+        {:noreply, put_flash(socket, :error, "Failed to start task: #{inspect(reason)}")}
+    end
+  end
+
+  @impl true
+  def handle_info({:manual_sync_completed, result}, socket) do
+    socket =
+      if result == :ok do
+        socket
+        |> put_flash(:info, "Task completed")
+      else
+        socket
+        |> put_flash(:error, "Task failed")
+      end
+
+    {:noreply, socket}
+  end
+
+  @impl true
+  def handle_info(_params, socket) do
+    {:noreply, socket}
+  end
+end

lib/decentralised_book_index_web/live/dbi_server_live/show.ex

@@ -0,0 +1,66 @@
+defmodule DecentralisedBookIndexWeb.DbiServerLive.Show do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Accounts.Role
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.header class="flex-col lg:flex-row">
+      {@dbi_server.name}
+
+      <:actions>
+        <%= if is_nil(@dbi_server.dbi_server) and @current_user != nil and Role.can_administrate?(@current_user.role) do %>
+          <.link patch={~p"/servers/#{@dbi_server}/edit"} phx-click={JS.push_focus()}>
+            <.edit_button>
+              Edit
+            </.edit_button>
+          </.link>
+        <% end %>
+      </:actions>
+    </.header>
+
+    <div>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Url</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@dbi_server.url}</dd>
+      </dl>
+      <dl>
+        <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">Sync on?</dt>
+        <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">{@dbi_server.sync_on?}</dd>
+      </dl>
+      <%= if not is_nil(@dbi_server.dbi_server) do %>
+        <dl>
+          <dt class="mb-2 font-semibold leading-none text-gray-900 dark:text-white">From Server</dt>
+          <dd class="mb-4 font-light text-gray-500 sm:mb-5 dark:text-gray-400">
+            <.link navigate={~p"/servers/#{@dbi_server.dbi_server.id}/"} class="hover:underline">
+              {@dbi_server.dbi_server.name}
+            </.link>
+          </dd>
+        </dl>
+      <% end %>
+    </div>
+
+    <.back navigate={~p"/servers"}>Back to servers</.back>
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok, socket}
+  end
+
+  @impl true
+  def handle_params(%{"id" => id}, _, socket) do
+    {:noreply,
+     socket
+     |> assign(:page_title, page_title(socket.assigns.live_action))
+     |> assign(
+       :dbi_server,
+       Ash.get!(DecentralisedBookIndex.Metadata.DBIServer, id, load: [:dbi_server], actor: socket.assigns.current_user)
+     )}
+  end
+
+  defp page_title(:show), do: "Show server"
+  defp page_title(:edit), do: "Edit server"
+end

lib/decentralised_book_index_web/live/publisher_live/edit.ex

@@ -0,0 +1,71 @@
+defmodule DecentralisedBookIndexWeb.PublisherLive.Edit do
+  use DecentralisedBookIndexWeb, :live_view
+
+  alias DecentralisedBookIndex.Metadata
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <.live_component
+      module={DecentralisedBookIndexWeb.PublisherLive.FormComponent}
+      id={(@publisher && @publisher.id) || :new}
+      title={@page_title}
+      current_user={@current_user}
+      action={@live_action}
+      publisher={@publisher}
+    />
+    """
+  end
+
+  @impl true
+  def mount(_params, _session, socket) do
+    {:ok,
+     socket
+     |> assign_new(:current_user, fn -> nil end)}
+  end
+
+  @impl true
+  def handle_params(params, _url, socket) do
+    socket =
+      socket
+      |> assign(:params, params)
+      |> apply_action(socket.assigns.live_action, params)
+
+    {:noreply, socket}
+  end
+
+  defp apply_action(socket, :edit, %{"id" => id}) do
+    socket
+    |> assign(:page_title, "Edit Publisher")
+    |> assign(
+      :publisher,
+      Ash.get!(Metadata.Publisher, id, load: [:dbi_server], actor: socket.assigns.current_user)
+    )
+    |> redirect_if_not_editable()
+  end
+
+  defp apply_action(socket, :new, _params) do
+    socket
+    |> assign(:page_title, "New Publisher")
+    |> assign(:publisher, nil)
+  end
+
+  @impl true
+  def handle_info(
+        {DecentralisedBookIndexWeb.PublisherLive.FormComponent, {:saved, _publisher}},
+        socket
+      ) do
+    {:noreply, socket}
+  end
+
+  defp redirect_if_not_editable(socket) do
+    if not is_nil(socket.assigns.publisher.dbi_server) do
+      socket =
+        socket
+        |> Phoenix.LiveView.put_flash(:error, "Can't edit other server's data!")
+        |> Phoenix.LiveView.redirect(to: ~p"/publishers/#{socket.assigns.publisher}")
+    else
+      socket
+    end
+  end
+end

lib/decentralised_book_index_web/live/publisher_live/form_component.ex

@@ -0,0 +1,107 @@
+defmodule DecentralisedBookIndexWeb.PublisherLive.FormComponent do
+  use DecentralisedBookIndexWeb, :live_component
+
+  @impl true
+  def render(assigns) do
+    ~H"""
+    <div>
+      <.header>
+        {@title}
+      </.header>
+
+      <.simple_form
+        for={@form}
+        id="publisher-form"
+        phx-target={@myself}
+        phx-change="validate"
+        phx-submit="save"
+      >
+        <%= if @form.source.type == :create do %>
+          <.input field={@form[:name]} type="text" label="Name" />
+        <% end %>
+        <%= if @form.source.type == :update do %>
+          <.input field={@form[:name]} type="text" label="Name" />
+        <% end %>
+
+        <:actions>
+          <.save_button phx-disable-with="Saving...">
+            Save
+          </.save_button>
+          <.cancel_button phx-click="cancel" phx-target={@myself}>
+            Cancel
+          </.cancel_button>
+        </:actions>
+      </.simple_form>
+    </div>
+    """
+  end
+
+  @impl true
+  def update(assigns, socket) do
+    {:ok,
+     socket
+     |> assign(assigns)
+     |> assign_form()}
+  end
+
+  @impl true
+  def handle_event("validate", %{"publisher" => publisher_params}, socket) do
+    {:noreply,
+     assign(socket, form: AshPhoenix.Form.validate(socket.assigns.form, publisher_params))}
+  end
+
+  def handle_event("save", %{"publisher" => publisher_params}, socket) do
+    case AshPhoenix.Form.submit(socket.assigns.form, params: publisher_params) do
+      {:ok, publisher} ->
+        notify_parent({:saved, publisher})
+
+        socket =
+          socket
+          |> put_flash(:info, "Publisher #{socket.assigns.form.source.type}d successfully")
+          |> push_navigate(to: patch_url(socket.assigns.action, publisher.id))
+
+        {:noreply, socket}
+
+      {:error, form} ->
+        {:noreply, assign(socket, form: form)}
+    end
+  end
+
+  def handle_event("cancel", _params, socket) do
+    publisher = socket.assigns.publisher
+    publisher_id = if publisher == nil, do: nil, else: publisher.id
+
+    socket =
+      socket
+      |> push_navigate(to: patch_url(socket.assigns.action, publisher_id))
+
+    {:noreply, socket}
+  end
+
+  defp notify_parent(msg), do: send(self(), {__MODULE__, msg})
+
+  defp assign_form(%{assigns: %{publisher: publisher}} = socket) do
+    form =
+      if publisher do
+        AshPhoenix.Form.for_update(publisher, :update,
+          as: "publisher",
+          actor: socket.assigns.current_user
+        )
+      else
+        AshPhoenix.Form.for_create(DecentralisedBookIndex.Metadata.Publisher, :create,
+          as: "publisher",
+          actor: socket.assigns.current_user
+        )
+      end
+
+    assign(socket, form: to_form(form))
+  end
+
+  defp patch_url(action, publisher_id) do
+    case action do
+      :edit -> ~p"/publishers/#{publisher_id}"
+      :new -> ~p"/publishers"
+      _ -> ~p"/publishers"
+    end
+  end
+end