add GhastTools

src/main/java/ghast/GhastTools.java

@@ -0,0 +1,57 @@
+package ghast;
+
+import lombok.experimental.UtilityClass;
+import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.plugin.Plugin;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.lang.ref.WeakReference;
+
+@UtilityClass
+@SuppressWarnings("unused")
+public class GhastTools {
+
+	private static WeakReference<Plugin> refPlugin;
+
+	@SuppressWarnings("java:S2696")
+	public void setPlugin(Plugin plugin) {
+		if (plugin == null) {
+			refPlugin = null;
+		} else {
+			refPlugin = new WeakReference<>(plugin);
+		}
+	}
+
+	@SuppressWarnings("java:S112")
+	public YamlConfiguration loadConfig(boolean saveDefault) {
+		if (saveDefault) {
+			getPlugin().saveDefaultConfig();
+		}
+
+		try (InputStream inputStream = AssetsManager.loadResource("config.yml", saveDefault)) {
+			return YamlConfiguration.loadConfiguration(new InputStreamReader(inputStream));
+		} catch (IOException e) {
+			throw new RuntimeException("Error load config: " + e.getMessage(), e);
+		}
+	}
+
+	public YamlConfiguration loadConfig() {
+		return loadConfig(true);
+	}
+
+	@SuppressWarnings("java:S112")
+	Plugin getPlugin() {
+		if (refPlugin == null) {
+			throw new RuntimeException("Plugin not set.");
+		}
+
+		Plugin plugin = refPlugin.get();
+		if (plugin == null) {
+			throw new RuntimeException("Plugin not set.");
+		}
+
+		return plugin;
+	}
+}