import { Injectable } from '@angular/core';
import { FmodeParse } from "fmode-ng/core";

@Injectable({
  providedIn: 'root'
})
export class TikHubService {
  private Parse: any;

  // Cloud Function IDs
  private readonly FUNCTIONS = {
    SEARCH_USER: 'BHmiTlSNA4',
    GET_PROFILE: 'UfDBWNeH90',
    GET_POSTS: 'rZ5HSTDpMm',
    GET_COMMENTS: '6sjEatiEN8'
  };

  constructor() {
    this.Parse = FmodeParse.initialize({
      appId: "ncloudmaster",
      serverURL: "https://server.fmode.cn/parse"
    });
  }

  /**
   * Search for TikTok users
   * @param keyword Search keyword
   * @param cursor Pagination cursor
   */
  async searchUsers(keyword: string, cursor: number = 0): Promise<any> {
    try {
      const result = await this.Parse.Cloud.function({
        id: this.FUNCTIONS.SEARCH_USER,
        keyword,
        cursor
      });

      if (result.code === 200 && result.success) {
        return result.data;
      } else {
        throw new Error(result.error || 'Search failed');
      }
    } catch (error) {
      console.error('TikHub Search Error:', error);
      throw error;
    }
  }

  /**
   * Get user profile details
   * @param uniqueId User handle (e.g. @username)
   */
  async getUserProfile(uniqueId: string): Promise<any> {
    try {
      const result = await this.Parse.Cloud.function({
        id: this.FUNCTIONS.GET_PROFILE,
        unique_id: uniqueId
      });

      if (result.code === 200 && result.success) {
        return result.data;
      } else {
        throw new Error(result.error || 'Get Profile failed');
      }
    } catch (error) {
      console.error('TikHub Profile Error:', error);
      throw error;
    }
  }

  /**
   * Get user posts
   * @param secUid User secure UID
   * @param count Number of posts
   * @param cursor Pagination cursor
   */
  async getUserPosts(secUid: string, count: number = 20, cursor: number = 0): Promise<any> {
    try {
      const result = await this.Parse.Cloud.function({
        id: this.FUNCTIONS.GET_POSTS,
        sec_user_id: secUid,
        count,
        cursor
      });

      if (result.code === 200 && result.success) {
        return result.data;
      } else {
        throw new Error(result.error || 'Get Posts failed');
      }
    } catch (error) {
      console.error('TikHub Posts Error:', error);
      throw error;
    }
  }

  /**
   * Get video comments
   * @param videoId Video ID
   * @param count Number of comments
   * @param cursor Pagination cursor
   */
  async getPostComments(videoId: string, count: number = 50, cursor: number = 0): Promise<any> {
    try {
      const result = await this.Parse.Cloud.function({
        id: this.FUNCTIONS.GET_COMMENTS,
        video_id: videoId,
        count,
        cursor
      });

      if (result.code === 200 && result.success) {
        return result.data;
      } else {
        throw new Error(result.error || 'Get Comments failed');
      }
    } catch (error) {
      console.error('TikHub Comments Error:', error);
      throw error;
    }
  }
}