class ChatService {
  constructor(app) {
    this.app = app;
  }

  worldChat(msg, cb) {
    // 获取所有chat-server服务器
    const chatServers = this.app.getServersByType("chat");

    // 随机选择一个chat-server
    const selectedServer = chatServers[Math.floor(Math.random() * chatServers.length)];

    // 向选定的chat-server发送世界聊天请求
    this.app.rpcInvoke(selectedServer.id, {
      namespace: "user",
      service: "chatRemote",
      method: "worldChat",
      args: [msg]
    }, cb);
  }

  teamChat(teamId, msg, cb) {
    // 获取所有chat-server服务器
    const chatServers = this.app.getServersByType("chat");

    // 随机选择一个chat-server
    const selectedServer = chatServers[Math.floor(Math.random() * chatServers.length)];

    // 向选定的chat-server发送队伍聊天请求
    this.app.rpcInvoke(selectedServer.id, {
      namespace: "user",
      service: "chatRemote",
      method: "teamChat",
      args: [teamId, msg]
    }, cb);
  }
}

module.exports = function(app) {
  return new ChatService(app);
};