Add validations to check if a cipher or an analyzer is available.

src/cipher_analytical_machine/cli/cli.clj

@@ -5,32 +5,11 @@
    [cipher-analytical-machine.analyzers.caesar :as caesar-analyzers]
    [cipher-analytical-machine.symbols.factories :as sf]
    [cipher-analytical-machine.symbols.frequencies :as symbol-frequencies]
+   [cipher-analytical-machine.cli.options :as options]
    [clojure.string :as cs]
    [clojure.tools.cli :refer [parse-opts]])
   (:gen-class))
 
-(def cipher-options
-  #{"Caesar"})
-
-(def language-options
-  #{"en", "uk"})
-
-(def cli-options
-  [["-m" "--message MESSAGE" "The message will be encrypted or decrypted."]
-   ["-M" "--message-file MESSAGE-FILE" "The file contains the message that will be encrypted or decrypted."]
-   ["-k" "--key KEY" "The key will be used to encrypt or decrypt."]
-   ["-c" "--cipher CIPHER" "The cipher will be used to encrypt or decrypt a message."
-    :default "Caesar"]
-   ["-e" "--encrypt" "Encrypt the message."]
-   ["-d" "--decrypt" "Decrypt the message."]
-   ["-s" "--symbols" "The string will be used as a set of symbols for a cipher."
-    :default (sf/default-symbol-factory "en")]
-   ["-l" "--language CODE" "The string will be used to set a default symbols for a cipher."
-    :validate [#(contains? language-options %) "Must be a code from the list: en, uk!!!"]]
-   ["-C" "--cracking" "Cracking the encrypted message."]
-   ["-O" "--output-file OUTPUT-FILE" "Save the program output to a file."]
-   ["-h" "--help"]])
-
 (defn usage [options-summary]
   (->> ["This is cipher-analytical-machine. It can help you to learn how ciphers works."
         ""
@@ -38,6 +17,12 @@
         ""
         "Options:"
         options-summary
+        ""
+        "Available values"
+        ""
+        (options/get-available-cipher-options-as-string)
+        ""
+        (options/get-available-analyzers-options-as-string)
         ""]
        (cs/join \newline)))
 
@@ -55,7 +40,7 @@
   should exit (with an error message, and optional ok status), or a map
   indicating the action the program should take and the options provided."
   [args]
-  (let [{:keys [options arguments errors summary]} (parse-opts args cli-options)]
+  (let [{:keys [options arguments errors summary]} (parse-opts args options/cli-options)]
     (cond
       (:help options)
       {:exit-message (usage summary) :ok? true}
@@ -77,6 +62,16 @@
            (file/is-file-exists? (:output-file options)))
       {:exit-message (error-msg ["Please, choose another file!!! Overwriting was prevented!!!"])}
 
+      (false? (contains? options/cipher-options (:cipher options)))
+      {:exit-message (error-msg ["Please, choose an available cipher!!!\n"
+                                 (options/get-available-cipher-options-as-string)])}
+
+      (and (map-has-keys? options [:cipher, :cracking, :analyzer])
+           (false? (contains?
+             (get options/analyzers-options (:cipher options)) (:analyzer options))))
+      {:exit-message (error-msg ["Please, choose an available analyzer!!!\n"
+                                 (options/get-available-analyzers-options-as-string)])}
+
       (and (map-has-keys? options [:cipher, :key])
            (or (contains? options :message)
                (contains? options :message-file))
@@ -153,14 +148,26 @@
     (save-output output options))
   (println output))
 
-(defn cracking-actions
-  [options arguments action-type]
-  (let [message (:message options)
+(defn cracking-caesar
+  [options arguments]
+  (let [analyzer (:analyzer options)
+        message (:message options)
         symbols (:symbols options)
         frequencies symbol-frequencies/english-letter-frequencies]
     (cond
-      (= action-type :cracking)
+      (= analyzer "Chi^2")
       (caesar-analyzers/get-plaintext message symbols frequencies)
+
+      (= analyzer "Frequency")
+      (caesar-analyzers/frequency-analizer-get-plaintext message symbols
+                                                         (symbol-frequencies/map-to-string frequencies)))))
+
+(defn cracking-actions
+  [options arguments action-type]
+  (let [cipher (:cipher options)]
+    (cond
+      (= cipher "Caesar")
+      (cracking-caesar options arguments)
       )))
 
 (defn crypt-actions

src/cipher_analytical_machine/cli/options.clj

@@ -0,0 +1,64 @@
+(ns cipher-analytical-machine.cli.options
+  (:require
+   [cipher-analytical-machine.symbols.factories :as sf]
+   [clojure.string :as cs])
+  (:gen-class))
+
+(defn option-values-as-row
+  "Return the formatted string of values for an option."
+  [option values]
+  (str option ": " (cs/join ", " values)))
+
+(defn option-values-as-list
+  "Return the formatted string of values for an option as a multiline list."
+  [option values]
+  (str option ": \n - " (cs/join "\n - " values)))
+
+(defn map-of-option-value-as-list
+  "Return the formatted string of values for an option as a multiline list.
+   The values are a map of pairs (suboption and its options)."
+  [option values]
+  (let [values (map #(apply option-values-as-row %) values)]
+    (option-values-as-list option values)))
+
+(def cipher-options
+  #{"Caesar"})
+
+(def default-cipher "Caesar")
+
+(defn get-available-cipher-options-as-string
+  "Return the formatted string of analyzers options."
+  []
+  (option-values-as-row "Ciphers" cipher-options))
+
+(def analyzers-options
+  {"Caesar" #{"Chi^2" "Frequency"}})
+
+(defn get-available-analyzers-options-as-string
+  "Return the formatted string of analyzers options."
+  []
+  (map-of-option-value-as-list "Analyzers" analyzers-options))
+
+(def language-options
+  #{"en", "uk"})
+
+(def default-symbols
+  (sf/default-symbol-factory "en"))
+
+(def cli-options
+  [["-m" "--message MESSAGE" "The message will be encrypted or decrypted."]
+   ["-M" "--message-file MESSAGE-FILE" "The file contains the message that will be encrypted or decrypted."]
+   ["-k" "--key KEY" "The key will be used to encrypt or decrypt."]
+   ["-c" "--cipher CIPHER" "The cipher will be used to encrypt or decrypt a message."
+    :default default-cipher]
+   ["-e" "--encrypt" "Encrypt the message."]
+   ["-d" "--decrypt" "Decrypt the message."]
+   ["-s" "--symbols SYMBOLS" "The string will be used as a set of symbols for a cipher."
+    :default default-symbols]
+   ["-l" "--language CODE" "The string will be used to set a default symbols for a cipher."
+    :validate [#(contains? language-options %) "Must be a code from the list: en, uk!!!"]]
+   ["-C" "--cracking" "Cracking the encrypted message."]
+   ["-a" "--analyzer ANALYZER" "The way of cracking."]
+   ["-O" "--output-file OUTPUT-FILE" "Save the program output to a file."]
+   ["-h" "--help"]])
+