import axios from 'axios';

// Token API 相关类型定义
interface IMTokenResponse {
  nonce: string;
  token: string;
  appId: string;
  appSign: string;
  timestamp: number;
}

interface RTCTokenResponse {
  token: string;
  appId: string;
  timestamp: number;
}

interface TokenError {
  message: string;
  code?: number;
}

// 课堂相关API
export const ClassroomAPI = {
  /**
   * 获取IM Token
   * @param userId 用户ID
   * @param role 用户角色 (admin/student)
   * @returns Promise<string> 返回IM Token
   * @throws {TokenError} 获取失败时抛出错误
   */
  getIMToken: async (userId: string, role: string): Promise<IMTokenResponse> => {
    try {
      const response = await axios.post(`/classroom/im_token`, {
        userId,
        role
      });

      if (!response.data.token) {
        throw new Error('Invalid token response');
      }

      return response.data;
    } catch (error) {
      console.error('Failed to get IM token:', error);
      throw new Error('Failed to get IM token');
    }
  },

  /**
   * 获取RTC Token
   * @param channelId 频道ID
   * @param userId 用户ID
   * @returns Promise<string> 返回RTC Token
   * @throws {TokenError} 获取失败时抛出错误
   */
  getRTCToken: async (channelId: string, userId: string): Promise<RTCTokenResponse> => {
    try {
      const response = await axios.post(`/classroom/rtc_token`, {
        channelId,
        userId
      });

      if (!response.data.token) {
        throw new Error('Invalid token response');
      }

      return response.data;
    } catch (error) {
      console.error('Failed to get RTC token:', error);
      throw new Error('Failed to get RTC token');
    }
  }
};