[Feat] New settings passwd UX & Config enc support

src/aura/utils/eventBus.js

@@ -0,0 +1,47 @@
+class EventBus {
+  constructor() {
+    this.listeners = new Map();
+  }
+
+  on(eventName, callback) {
+    if (!this.listeners.has(eventName)) {
+      this.listeners.set(eventName, new Set());
+    }
+    this.listeners.get(eventName).add(callback);
+    return () => this.off(eventName, callback);
+  }
+
+  off(eventName, callback) {
+    if (this.listeners.has(eventName)) {
+      this.listeners.get(eventName).delete(callback);
+      if (this.listeners.get(eventName).size === 0) {
+        this.listeners.delete(eventName);
+      }
+    }
+  }
+
+  emit(eventName, ...args) {
+    if (this.listeners.has(eventName)) {
+      this.listeners.get(eventName).forEach((callback) => {
+        try {
+          callback(...args);
+        } catch (error) {
+          console.error(
+            `[HugoAura / EventBus] Error in ${eventName} callback:`,
+            error
+          );
+        }
+      });
+    }
+  }
+
+  once(eventName, callback) {
+    const onceCallback = (...args) => {
+      callback(...args);
+      this.off(eventName, onceCallback);
+    };
+    return this.on(eventName, onceCallback);
+  }
+}
+
+module.exports = EventBus;