Add option for custom translation file

src/main/java/de/shiewk/smoderation/paper/SModerationPaper.java

@@ -74,7 +74,11 @@ public final class SModerationPaper extends JavaPlugin {
         LOGGER.info("Folia: {}", SchedulerUtil.isFolia ? "yes" : "no");
         PLUGIN = this;
         LOGGER.info("Loading translations");
+        if (config().getBoolean("custom-messages", false)) {
+            translatorManager.loadCustomMessages(getDataPath().resolve("messages.json"));
+        } else {
             translatorManager.load();
+        }
         updateConfig();
 
         this.punishmentManager = new PunishmentManager(getDataPath().resolve("punishments.v2"));

src/main/java/de/shiewk/smoderation/paper/translation/TranslatorManager.java

@@ -1,17 +1,20 @@
 package de.shiewk.smoderation.paper.translation;
 
+import com.google.gson.FormattingStyle;
 import com.google.gson.JsonIOException;
 import com.google.gson.JsonSyntaxException;
 import com.google.gson.reflect.TypeToken;
+import com.google.gson.stream.JsonWriter;
 import de.shiewk.smoderation.paper.SModerationPaper;
 import net.kyori.adventure.key.Key;
 import net.kyori.adventure.text.minimessage.MiniMessage;
 import net.kyori.adventure.text.minimessage.translation.MiniMessageTranslationStore;
 import net.kyori.adventure.translation.GlobalTranslator;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
+import java.io.*;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.StandardOpenOption;
 import java.util.Locale;
 import java.util.Map;
 
@@ -45,4 +48,54 @@ public class TranslatorManager {
         }
         GlobalTranslator.translator().addSource(translationStore);
     }
+
+    public void loadCustomMessages(Path customPath) {
+        try {
+            if (Files.notExists(customPath)) {
+                Files.createDirectories(customPath.getParent());
+                Files.write(customPath, "{}".getBytes(), StandardOpenOption.CREATE);
+            }
+
+            Map<String, String> predefinedMap;
+            try (InputStream stream = SModerationPaper.class.getClassLoader().getResourceAsStream(resourcePath + "en_us.json")) {
+                if (stream == null) {
+                    SModerationPaper.LOGGER.warn("English (US) predefined translations not found or not accessible");
+                    predefinedMap = Map.of();
+                } else {
+                    predefinedMap = SModerationPaper.gson.fromJson(new InputStreamReader(stream), new TypeToken<>(){});
+                }
+            }
+
+            Map<String, String> translationMap;
+            try (InputStream stream = Files.newInputStream(customPath)) {
+                translationMap = SModerationPaper.gson.fromJson(new InputStreamReader(stream), new TypeToken<>(){});
+            }
+
+            boolean updated = false;
+            for (Map.Entry<String, String> entry : predefinedMap.entrySet()) {
+                if (!translationMap.containsKey(entry.getKey())) {
+                    translationMap.put(entry.getKey(), entry.getValue());
+                    updated = true;
+                }
+            }
+
+            if (updated) {
+                SModerationPaper.LOGGER.warn("Updating {} custom translations", translationMap.size());
+                try (OutputStream stream = Files.newOutputStream(customPath, StandardOpenOption.TRUNCATE_EXISTING);
+                     OutputStreamWriter writer = new OutputStreamWriter(stream);
+                     JsonWriter jsonWriter = new JsonWriter(writer)) {
+                    jsonWriter.setFormattingStyle(FormattingStyle.PRETTY);
+                    SModerationPaper.gson.toJson(translationMap, translationMap.getClass(), jsonWriter);
+                }
+                SModerationPaper.LOGGER.info("Update successful");
+            }
+
+            translationStore.registerAll(Locale.forLanguageTag("en-US"), translationMap);
+            SModerationPaper.LOGGER.info("Registered {} custom translations", translationMap.size());
+
+        } catch (IOException e) {
+            SModerationPaper.LOGGER.warn("Failed to load custom translations", e);
+        }
+        GlobalTranslator.translator().addSource(translationStore);
+    }
 }

src/main/resources/default-config.yml

@@ -31,6 +31,14 @@ colors:
   secondary: '#fc9e07'
   detail: '#ababab'
 
+# Allows you to customize translation files.
+# - At 'false', the plugin's predefined localization is used
+#   and available for multiple languages:
+#   https://github.com/Shiewk/SModeration/tree/main/src/main/resources/smoderation/translations
+# - At 'true', a JSON localization file will be created in the plugin directory.
+#   Only the contained strings will be used and localization will be disabled.
+custom-messages: false
+
 # A list of commands which will be captured and broadcast
 # to players which have SocialSpy enabled (/socialspy).
 socialspy-commands: