export class WebSocketClient {
  constructor(url = 'wss://localhost:8080') {
    this.url = url;
    this.reconnectAttempts = 0;
    this.maxReconnectAttempts = 5;
    this.reconnectDelay = 1000;
    this.maxReconnectDelay = 30000;
    this.socket = null;
    this.connected = false;
    this.reconnectTimeout = null;
    this.messageQueue = [];
  }

  connect() {
    if (this.socket && this.socket.readyState === WebSocket.OPEN) {
      return;
    }

    this.socket = new WebSocket(this.url);

    this.socket.onopen = () => {
      this.connected = true;
      this.reconnectAttempts = 0;
      this.messageQueue.forEach(msg => this.send(msg));
      this.messageQueue = [];
      window.dispatchEvent(new CustomEvent('player-joined', { detail: { id: 'system', name: 'System' } }));
    };

    this.socket.onmessage = (event) => {
      const data = JSON.parse(event.data);
      switch (data.type) {
        case 'player-joined':
          window.dispatchEvent(new CustomEvent('player-joined', { detail: data }));
          break;
        case 'player-left':
          window.dispatchEvent(new CustomEvent('player-left', { detail: data }));
          break;
        case 'chat-message':
          window.dispatchEvent(new CustomEvent('chat-message', { detail: data }));
          break;
      }
    };

    this.socket.onclose = () => {
      this.connected = false;
      this.reconnect();
    };

    this.socket.onerror = (error) => {
      console.error('WebSocket error:', error);
    };
  }

  reconnect() {
    if (this.reconnectAttempts >= this.maxReconnectAttempts) {
      console.warn('Max reconnection attempts reached.');
      return;
    }

    this.reconnectTimeout = setTimeout(() => {
      this.reconnectAttempts++;
      this.connect();
    }, Math.min(this.reconnectDelay * Math.pow(2, this.reconnectAttempts), this.maxReconnectDelay));
  }

  send(message) {
    if (this.connected) {
      this.socket.send(JSON.stringify(message));
    } else {
      this.messageQueue.push(message);
    }
  }

  disconnect() {
    if (this.socket) {
      this.socket.close();
    }
  }
}

// Initialize and export a singleton instance
export const wsClient = new WebSocketClient();