Adds a new /formatbook command

src/main/java/net/knarcraft/bookswithoutborders/BooksWithoutBorders.java

@@ -6,6 +6,7 @@ import net.knarcraft.bookswithoutborders.command.CommandDecrypt;
 import net.knarcraft.bookswithoutborders.command.CommandDelete;
 import net.knarcraft.bookswithoutborders.command.CommandDeletePublic;
 import net.knarcraft.bookswithoutborders.command.CommandEncrypt;
+import net.knarcraft.bookswithoutborders.command.CommandFormat;
 import net.knarcraft.bookswithoutborders.command.CommandGive;
 import net.knarcraft.bookswithoutborders.command.CommandGivePublic;
 import net.knarcraft.bookswithoutborders.command.CommandGroupEncrypt;
@@ -280,6 +281,7 @@ public class BooksWithoutBorders extends JavaPlugin {
         registerCommand("loadPublicBook", new CommandLoadPublic());
         registerCommand("booksWithoutBorders", new CommandBooksWithoutBorders());
         registerCommand("reload", new CommandReload());
+        registerCommand("formatBook", new CommandFormat());
     }
 
     /**
@@ -299,6 +301,7 @@ public class BooksWithoutBorders extends JavaPlugin {
 
     /**
      * Initializes the plugin, loading and fixing the config file
+     *
      * @return <p>True if successful</p>
      */
     private boolean initialize() {
@@ -399,6 +402,7 @@ public class BooksWithoutBorders extends JavaPlugin {
 
     /**
      * Loads the config
+     *
      * @return <p>True if the config was loaded successfully</p>
      */
     public boolean loadConfig() {
@@ -417,9 +421,6 @@ public class BooksWithoutBorders extends JavaPlugin {
             if (config.contains("Options.Book_for_new_players")) {
                 firstBooks.add(config.getString("Options.Book_for_new_players"));
             }
-            if (firstBooks.isEmpty()) {
-                firstBooks.add(" ");
-            }
 
             welcomeMessage = config.getString("Options.Message_for_new_players", " ");
 

src/main/java/net/knarcraft/bookswithoutborders/command/CommandFormat.java

@@ -0,0 +1,73 @@
+package net.knarcraft.bookswithoutborders.command;
+
+import net.knarcraft.bookswithoutborders.BooksWithoutBorders;
+import net.knarcraft.bookswithoutborders.utility.InventoryHelper;
+import net.md_5.bungee.api.ChatColor;
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.inventory.meta.BookMeta;
+import org.jetbrains.annotations.NotNull;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Objects;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+/**
+ * A command for converting color codes to color formatting
+ */
+public class CommandFormat implements TabExecutor {
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender sender, @NotNull Command command, @NotNull String label, @NotNull String[] args) {
+        if (!(sender instanceof Player player)) {
+            BooksWithoutBorders.sendErrorMessage(sender, "This command can only be used by a player!");
+            return false;
+        }
+
+        if (InventoryHelper.notHoldingOneWrittenBookCheck(player, "You must be holding a written book to format it!",
+                "You cannot format two books at once!")) {
+            return false;
+        }
+
+        ItemStack heldBook = InventoryHelper.getHeldBook(player, true);
+        BookMeta bookMeta = (BookMeta) heldBook.getItemMeta();
+
+        List<String> formattedPages = new ArrayList<>(Objects.requireNonNull(bookMeta).getPageCount());
+        for (String page : bookMeta.getPages()) {
+            formattedPages.add(translateAllColorCodes(page));
+        }
+        bookMeta.setPages(formattedPages);
+        heldBook.setItemMeta(bookMeta);
+
+        BooksWithoutBorders.sendSuccessMessage(sender, "Book formatted!");
+
+        return true;
+    }
+
+    /**
+     * Translates all found color codes to formatting in a string
+     *
+     * @param message <p>The string to search for color codes</p>
+     * @return <p>The message with color codes translated</p>
+     */
+    public static String translateAllColorCodes(String message) {
+        message = ChatColor.translateAlternateColorCodes('&', message);
+        Pattern pattern = Pattern.compile("(#[a-fA-F0-9]{6})");
+        Matcher matcher = pattern.matcher(message);
+        while (matcher.find()) {
+            message = message.replace(matcher.group(), "" + ChatColor.of(matcher.group()));
+        }
+        return message;
+    }
+
+    @Override
+    public List<String> onTabComplete(@NotNull CommandSender sender, @NotNull Command command, @NotNull String alias, @NotNull String[] args) {
+        return new ArrayList<>();
+    }
+
+}