import LiveClient, * as $LiveClient from "@alicloud/live20161101";
import LiveInteractionClient, * as $LiveInteraction from "@alicloud/live-interaction20201214";
import * as $OpenApi from "@alicloud/openapi-client";

interface RoomOptions {
  title?: string;
  templateId?: string;
  maxUsers?: number;
}

interface UserInfo {
  id: string;
  name?: string;
  avatar?: string;
  isAdmin?: boolean;
}

interface Message {
  id: string;
  sender: UserInfo;
  content: string;
  timestamp: Date;
}

export class RoomManagementSystem {
  private liveClient: LiveClient.default;
  private liveInteractionClient: LiveInteractionClient.default;
  private appId: string;

  constructor() {
    const config = new $OpenApi.Config({
      accessKeyId: Deno.env.get("ALIYUN_LIVE_ACCESS_KEY_ID") || "",
      accessKeySecret: Deno.env.get("ALIYUN_LIVE_ACCESS_KEY_SECRET") || "",
      endpoint: "live.aliyuncs.com"
    });
    
    this.liveClient = new LiveClient.default(config);
    this.liveInteractionClient = new LiveInteractionClient.default(config);
    this.appId = Deno.env.get("ALIYUN_CHAT_APP_ID") || "";
  }

  /**
   * 创建房间
   * @param roomId 房间ID
   * @param options 房间选项
   * @returns 房间信息
   */
  async createRoom(roomId: string, options: RoomOptions = {}): Promise<{
    roomId: string;
    pushUrl: string;
    playUrl: string;
    chatToken: string;
  }> {
    try {
      // 创建互动直播房间
      const createRequest = new $LiveInteraction.CreateRoomRequest({
        AppId: this.appId,
        RoomId: roomId,
        Title: options.title || `Room ${roomId}`,
        TemplateId: options.templateId || "standard"
      });
      const createResponse = await this.liveInteractionClient.createRoom(createRequest);

      // 获取推流/播放地址
      const urlRequest = new $LiveClient.DescribeLiveStreamsOnlineListRequest({
        AppId: this.appId,
        RoomId: roomId
      });
      const urlResponse = await this.liveClient.describeLiveStreamsOnlineList(urlRequest);

      return {
        roomId,
        pushUrl: urlResponse.PushUrl,
        playUrl: urlResponse.PlayUrl,
        chatToken: createResponse.Token
      };
    } catch (error) {
      throw new Error(`Failed to create room: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 销毁房间
   * @param roomId 房间ID
   */
  async destroyRoom(roomId: string): Promise<void> {
    try {
      const request = new $LiveInteraction.DestroyRoomRequest({
        AppId: this.appId,
        RoomId: roomId
      });
      await this.liveInteractionClient.destroyRoom(request); 
    } catch (error) {
      throw new Error(`Failed to destroy room: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 用户加入房间
   * @param roomId 房间ID
   * @param user 用户信息
   * @returns 用户Token和播放地址
   */
  async joinRoom(roomId: string, user: UserInfo) {
    try {
      const addMemberRequest = new $LiveInteraction.AddGroupMembersRequest({
        appId:this.appId,
        requestParams: {
            groupId: roomId,
            members: [user.id]
        }
      })

      await this.liveInteractionClient.addGroupMembers(addMemberRequest) ;

    } catch (error) {
      throw new Error(`Failed to join room: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 用户离开房间
   * @param roomId 房间ID
   * @param userId 用户ID
   */
  async leaveRoom(roomId: string, userId: string): Promise<void> {
    try {
      const request = new $LiveInteraction.RemoveGroupMembersRequest({
        AppId: this.appId,
        RoomId: roomId,
        UserId: userId
      });
      await this.liveInteractionClient.leaveRoom(request);
    } catch (error) {
      throw new Error(`Failed to leave room: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 发送消息
   * @param roomId 房间ID
   * @param sender 发送者信息
   * @param content 消息内容
   * @returns 消息ID
   */
  async sendMessage(roomId: string, sender: UserInfo, content: string): Promise<string> {
    try {
      const request = new $LiveInteraction.SendMessageRequest({
        AppId: this.appId,
        RoomId: roomId,
        SenderId: sender.id,
        Content: content
      });
      const response = await this.liveInteractionClient.sendMessage(request);
      return response.MessageId;
    } catch (error) {
      throw new Error(`Failed to send message: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 获取历史消息
   * @param roomId 房间ID
   * @param limit 消息数量限制
   * @returns 消息列表
   */
  async getHistoryMessages(roomId: string, limit: number = 50): Promise<Message[]> {
    try {
      const request = new $LiveInteraction.GetHistoryMessagesRequest({
        AppId: this.appId,
        RoomId: roomId,
        Limit: limit
      });
      const response = await this.liveInteractionClient.getHistoryMessages(request);
      
      return response.Messages.map((msg: any) => ({
        id: msg.MessageId,
        sender: {
          id: msg.SenderId,
          name: msg.SenderName,
          avatar: msg.SenderAvatar
        },
        content: msg.Content,
        timestamp: new Date(msg.Timestamp)
      }));
    } catch (error) {
      throw new Error(`Failed to get history messages: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 禁言用户
   * @param roomId 房间ID
   * @param userId 用户ID
   * @param duration 禁言时长(秒)
   */
  async muteUser(roomId: string, userId: string, duration: number = 3600): Promise<void> {
    try {
      const request = new $LiveInteraction.MuteUserRequest({
        AppId: this.appId,
        RoomId: roomId,
        UserId: userId,
        Duration: duration
      });
      await this.liveInteractionClient.muteUser(request);
    } catch (error) {
      throw new Error(`Failed to mute user: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 踢出用户
   * @param roomId 房间ID
   * @param userId 用户ID
   */
  async kickUser(roomId: string, userId: string): Promise<void> {
    try {
      const request = new $LiveInteraction.KickUserRequest({
        AppId: this.appId,
        RoomId: roomId,
        UserId: userId
      });
      await this.liveInteractionClient.kickUser(request);
    } catch (error) {
      throw new Error(`Failed to kick user: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }

  /**
   * 获取房间信息
   * @param roomId 房间ID
   * @returns 房间信息
   */
  async getRoomInfo(roomId: string): Promise<{
    roomId: string;
    playUrl: string;
    onlineCount: number;
  }> {
    try {
      // 获取直播间信息
      const infoRequest = new $LiveClient.DescribeLiveStreamsOnlineListRequest({
        AppId: this.appId,
        RoomId: roomId
      });
      const infoResponse = await this.liveClient.describeLiveStreamsOnlineList(infoRequest);

      // 获取在线人数
      const statsRequest = new $LiveClient.DescribeLiveDomainOnlineUserNumRequest({
        AppId: this.appId,
        RoomId: roomId
      });
      const statsResponse = await this.liveClient.describeLiveDomainOnlineUserNum(statsRequest);

      return {
        roomId,
        playUrl: infoResponse.PlayUrl,
        onlineCount: statsResponse.OnlineCount
      };
    } catch (error) {
      throw new Error(`Failed to get room info: ${error instanceof Error ? error.message : "Unknown error"}`);
    }
  }
}