Fixes sign decryption using the wrong key

src/main/java/net/knarcraft/bookswithoutborders/listener/PlayerEventListener.java

@@ -70,7 +70,7 @@ public class PlayerEventListener implements Listener {
             if (!welcomeMessage.trim().isEmpty() && newBook != null && sendMessage) {
                 sendMessage = false;
                 booksWithoutBorders.getServer().getScheduler().scheduleSyncDelayedTask(booksWithoutBorders,
-                        () -> player.sendMessage(welcomeMessage), 40L);
+                        () -> new FormatBuilder(welcomeMessage).neutral(player), 40L);
             }
         }
         return sendMessage;

src/main/java/net/knarcraft/bookswithoutborders/listener/SignEventListener.java

@@ -4,13 +4,13 @@ import net.knarcraft.bookswithoutborders.BooksWithoutBorders;
 import net.knarcraft.bookswithoutborders.config.Permission;
 import net.knarcraft.bookswithoutborders.config.translation.GiveMessage;
 import net.knarcraft.bookswithoutborders.config.translation.SignText;
+import net.knarcraft.bookswithoutborders.config.translation.Translatable;
 import net.knarcraft.bookswithoutborders.encryption.EncryptionStyle;
 import net.knarcraft.bookswithoutborders.state.BookDirectory;
 import net.knarcraft.bookswithoutborders.state.SignType;
 import net.knarcraft.bookswithoutborders.utility.BookFileUtil;
 import net.knarcraft.bookswithoutborders.utility.BookLoaderUtil;
 import net.knarcraft.bookswithoutborders.utility.EncryptedBookUtil;
-import net.knarcraft.bookswithoutborders.utility.EncryptionUtil;
 import net.knarcraft.bookswithoutborders.utility.InputCleaningUtil;
 import net.knarcraft.knarlib.formatting.FormatBuilder;
 import net.md_5.bungee.api.ChatColor;
@@ -94,11 +94,27 @@ public class SignEventListener implements Listener {
         }
         Material heldItemType = heldItem.getType();
 
-        if (event.getClickedBlock() != null && (event.getAction() == Action.RIGHT_CLICK_BLOCK &&
+        if (event.getClickedBlock() == null || (event.getAction() != Action.RIGHT_CLICK_BLOCK ||
-                (Tag.SIGNS.isTagged(event.getClickedBlock().getType()) ||
+                (!Tag.SIGNS.isTagged(event.getClickedBlock().getType()) &&
-                        Tag.WALL_SIGNS.isTagged(event.getClickedBlock().getType())))) {
+                        !Tag.WALL_SIGNS.isTagged(event.getClickedBlock().getType())))) {
+            return;
+        }
+
         //The player right-clicked a sign
-            Sign sign = (Sign) event.getClickedBlock().getState();
+        checkSign(event, (Sign) event.getClickedBlock().getState(), heldItemType, hand);
+    }
+
+    /**
+     * Checks if the clicked sign is a BwB sign, and which action to take
+     *
+     * @param event        <p>The triggered interact event</p>
+     * @param sign         <p>The clicked sign</p>
+     * @param heldItemType <p>The type of the held item</p>
+     * @param hand         <p>The hand the held item is in</p>
+     */
+    private void checkSign(@NotNull PlayerInteractEvent event, @NotNull Sign sign, @NotNull Material heldItemType,
+                           @NotNull EquipmentSlot hand) {
+        Player player = event.getPlayer();
         if (SignType.fromString(sign.getSide(Side.FRONT).getLine(0)) != SignType.BOOKS_WITHOUT_BORDERS) {
             return;
         }
@@ -117,8 +133,6 @@ public class SignEventListener implements Listener {
             SignSide front = sign.getSide(Side.FRONT);
             new FormatBuilder(SignText.ERROR_SIGN_COMMAND_INVALID).replace("{action}", front.getLine(1)).
                     replace("{data}", front.getLine(2)).error(player);
-                player.sendMessage(String.valueOf(getSignLine2Color(sign)));
-            }
         }
     }
 
@@ -133,22 +147,24 @@ public class SignEventListener implements Listener {
     private void decryptHeldBookUsingSign(@NotNull Sign sign, @NotNull Material heldItemType, @NotNull Player player,
                                           @NotNull EquipmentSlot hand) {
         //Decrypt the held book and replace it
-        if (heldItemType == Material.WRITTEN_BOOK) {
+        if (heldItemType != Material.WRITTEN_BOOK) {
+            return;
+        }
+
         player.closeInventory();
 
         //Converts user supplied key into integer form
         String lineText = InputCleaningUtil.stripColor(sign.getSide(Side.FRONT).getLine(2));
-            String key = EncryptionUtil.getNumberKeyFromStringKey(lineText);
 
-            ItemStack book = EncryptedBookUtil.loadEncryptedBook(player, key, false, false);
+
+        ItemStack book = EncryptedBookUtil.loadEncryptedBook(player, lineText, false, false);
         if (book == null) {
-                book = EncryptedBookUtil.loadEncryptedBookLegacy(player, key, false);
+            book = EncryptedBookUtil.loadEncryptedBookLegacy(player, lineText, false);
         }
 
         if (book != null) {
             player.getInventory().setItem(hand, book);
-                player.sendMessage(ChatColor.GREEN + "Book decrypted!");
+            new FormatBuilder(Translatable.SUCCESS_DECRYPTED).success(player);
-            }
         }
     }