Move config java files to their own package

src/main/java/emu/grasscutter/config/Configuration.java

@@ -0,0 +1,109 @@
+package emu.grasscutter.config;
+
+import java.util.Locale;
+
+import java.nio.file.Paths;
+
+import static emu.grasscutter.Grasscutter.config;
+
+
+/**
+ * A data container for the server's configuration.
+ * 
+ * Use `import static emu.grasscutter.Configuration.*;`
+ * to import all configuration constants.
+ */
+public final class Configuration extends ConfigContainer {
+    
+    /*
+     * Constants
+     */
+    
+    // 'c' is short for 'config' and makes code look 'cleaner'.
+    public static final ConfigContainer c = config;
+    
+    public static final Locale LANGUAGE = config.language.language;
+    public static final Locale FALLBACK_LANGUAGE = config.language.fallback;
+    public static final String DOCUMENT_LANGUAGE = config.language.document;
+    private static final String DATA_FOLDER = config.folderStructure.data;
+    private static final String RESOURCES_FOLDER = config.folderStructure.resources;
+    private static final String PLUGINS_FOLDER = config.folderStructure.plugins;
+    private static final String SCRIPTS_FOLDER = config.folderStructure.scripts;
+    private static final String PACKETS_FOLDER = config.folderStructure.packets;
+    
+    public static final Server SERVER = config.server;
+    public static final Database DATABASE = config.databaseInfo;
+    public static final Account ACCOUNT = config.account;
+    
+    public static final HTTP HTTP_INFO = config.server.http;
+    public static final Game GAME_INFO = config.server.game;
+    public static final Dispatch DISPATCH_INFO = config.server.dispatch;
+    
+    public static final Encryption HTTP_ENCRYPTION = config.server.http.encryption;
+    public static final Policies HTTP_POLICIES = config.server.http.policies;
+    public static final Files HTTP_STATIC_FILES = config.server.http.files;
+    
+    public static final GameOptions GAME_OPTIONS = config.server.game.gameOptions;
+    public static final GameOptions.InventoryLimits INVENTORY_LIMITS = config.server.game.gameOptions.inventoryLimits;
+    
+    /*
+     * Utilities
+     */
+    public static String DATA() {
+        return DATA_FOLDER;
+    }
+
+    public static String DATA(String path) {
+        return Paths.get(DATA_FOLDER, path).toString();
+    }
+    
+    public static String RESOURCE(String path) {
+        return Paths.get(RESOURCES_FOLDER, path).toString();
+    }
+    
+    public static String PLUGIN() {
+        return PLUGINS_FOLDER;
+    }
+
+    public static String PLUGIN(String path) {
+        return Paths.get(PLUGINS_FOLDER, path).toString();
+    }
+
+    public static String SCRIPT(String path) {
+        return Paths.get(SCRIPTS_FOLDER, path).toString();
+    }
+
+    public static String PACKET(String path) {
+        return Paths.get(PACKETS_FOLDER, path).toString();
+    }
+
+    /**
+     * Fallback method.
+     * @param left Attempt to use.
+     * @param right Use if left is undefined.
+     * @return Left or right.
+     */
+    public static <T> T lr(T left, T right) {
+        return left == null ? right : left;
+    }
+
+    /**
+     * {@link Configuration#lr(Object, Object)} for {@link String}s.
+     * @param left Attempt to use.
+     * @param right Use if left is empty.
+     * @return Left or right.
+     */
+    public static String lr(String left, String right) {
+        return left.isEmpty() ? right : left;
+    }
+
+    /**
+     * {@link Configuration#lr(Object, Object)} for {@link Integer}s.
+     * @param left Attempt to use.
+     * @param right Use if left is 0.
+     * @return Left or right.
+     */
+    public static int lr(int left, int right) {
+        return left == 0 ? right : left;
+    }
+}