Add the action of decryption for the gamma cipher.

src/cipher_analytical_machine/cli/actions/cryptography.clj

@@ -1,7 +1,9 @@
 (ns cipher-analytical-machine.cli.actions.cryptography
   (:require
+   [clojure.string :as cs]
    [cipher-analytical-machine.ciphers.caesar :as caesar]
    [cipher-analytical-machine.ciphers.simple-substitution :as ss]
+   [cipher-analytical-machine.ciphers.gamma :as gamma]
    [cipher-analytical-machine.parsers.parsers :as ps]
    [cipher-analytical-machine.parsers.simple-substitution :as pss])
   (:gen-class))
@@ -38,6 +40,19 @@
             substitution-table (get data "table")]
         (ss/decrypt-message-with-caesar message key substitution-table symbols)))))
 
+(defn gamma-actions
+  [options arguments action-type]
+  (let [message (:message options)
+        key (->> (cs/split (:key options) #",")
+                (map #(Integer/parseInt %)))
+        symbols (:symbols options)]
+    (cond
+      (= action-type :encrypt)
+      (gamma/encrypt-message key symbols message)
+
+      (= action-type :decrypt)
+      (gamma/decrypt-message key symbols message))))
+
 (defn cryptography-actions
   [options arguments action-type]
   (let [cipher (:cipher options)]
@@ -46,5 +61,8 @@
       (caesar-actions options arguments action-type)
 
       (= cipher "Simple substitution and Caesar")
-      (simple-substitution-with-caesar-actions options arguments action-type))))
+      (simple-substitution-with-caesar-actions options arguments action-type)
+
+      (= cipher "Gamma")
+      (gamma-actions options arguments action-type))))