Adds support for custom strings.yml files

src/main/java/net/knarcraft/permissionsigns/PermissionSigns.java

@@ -133,7 +133,6 @@ public final class PermissionSigns extends JavaPlugin {
     public void onEnable() {
         PluginDescriptionFile pluginDescriptionFile = this.getDescription();
         pluginVersion = pluginDescriptionFile.getVersion();
-        //TODO: Allow for custom language files. Perhaps just look for strings.yml in the folder
         //TODO: Display a notice in the console if a new version is available
 
         FileConfiguration config = this.getConfig();

src/main/java/net/knarcraft/permissionsigns/formatting/Translator.java

@@ -5,7 +5,10 @@ import net.knarcraft.permissionsigns.utility.FileHelper;
 import org.bukkit.configuration.file.YamlConfiguration;
 
 import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileInputStream;
 import java.io.FileNotFoundException;
+import java.io.InputStreamReader;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.logging.Level;
@@ -23,7 +26,10 @@ public final class Translator {
      */
     public static void loadLanguages(String selectedLanguage) {
         backupTranslatedMessages = loadTranslatedMessages("en");
-        translatedMessages = loadTranslatedMessages(selectedLanguage);
+        translatedMessages = loadCustomTranslatedMessages(selectedLanguage);
+        if (translatedMessages == null) {
+            translatedMessages = loadTranslatedMessages(selectedLanguage);
+        }
     }
 
     /**
@@ -52,14 +58,46 @@ public final class Translator {
      * @return <p>A mapping of all strings for the given language</p>
      */
     public static Map<TranslatableMessage, String> loadTranslatedMessages(String language) {
-        Map<TranslatableMessage, String> translatedMessages = new HashMap<>();
-        BufferedReader reader;
         try {
-            reader = FileHelper.getBufferedReaderForInternalFile("/strings.yml");
+            BufferedReader reader = FileHelper.getBufferedReaderForInternalFile("/strings.yml");
+            return loadTranslatableMessages(language, reader);
         } catch (FileNotFoundException e) {
             PermissionSigns.getInstance().getLogger().log(Level.SEVERE, "Unable to load translated messages");
             return null;
         }
+    }
+
+    /**
+     * Tries to load translated messages from a custom strings.yml file
+     *
+     * @param language <p>The selected language</p>
+     * @return <p>The loaded translated strings, or null if no custom language file exists</p>
+     */
+    public static Map<TranslatableMessage, String> loadCustomTranslatedMessages(String language) {
+        File strings = new File(PermissionSigns.getInstance().getDataFolder(), "strings.yml");
+        if (!strings.exists()) {
+            PermissionSigns.getInstance().getLogger().log(Level.WARNING, "Strings file not found");
+            return null;
+        }
+
+        try {
+            PermissionSigns.getInstance().getLogger().log(Level.WARNING, "Loading custom strings...");
+            return loadTranslatableMessages(language, new BufferedReader(new InputStreamReader(new FileInputStream(strings))));
+        } catch (FileNotFoundException e) {
+            PermissionSigns.getInstance().getLogger().log(Level.WARNING, "Unable to load custom messages");
+            return null;
+        }
+    }
+
+    /**
+     * Loads translatable messages from the given reader
+     *
+     * @param language <p>The selected language</p>
+     * @param reader   <p>The buffered reader to read from</p>
+     * @return <p>The loaded translated strings</p>
+     */
+    private static Map<TranslatableMessage, String> loadTranslatableMessages(String language, BufferedReader reader) {
+        Map<TranslatableMessage, String> translatedMessages = new HashMap<>();
         YamlConfiguration configuration = YamlConfiguration.loadConfiguration(reader);
 
         for (TranslatableMessage message : TranslatableMessage.values()) {