client/src/app/videos/shared/video.service.ts

   1 import { Injectable } from '@angular/core';
   2 import { Http } from '@angular/http';
   3 import { Observable } from 'rxjs/Observable';
   4
   5 import { Search } from '../../shared';
   6 import { SortField } from './sort-field.type';
   7 import { AuthHttp, AuthService, RestExtractor, RestPagination, RestService, ResultList } from '../../shared';
   8 import { Video } from './video.model';
   9
  10 @Injectable()
  11 export class VideoService {
  12   private static BASE_VIDEO_URL = '/api/v1/videos/';
  13
  14   constructor(
  15     private authService: AuthService,
  16     private authHttp: AuthHttp,
  17     private http: Http,
  18     private restExtractor: RestExtractor,
  19     private restService: RestService
  20   ) {}
  21
  22   getVideo(id: string): Observable<Video> {
  23     return this.http.get(VideoService.BASE_VIDEO_URL + id)
  24                     .map(this.restExtractor.extractDataGet)
  25                     .map(video_hash => new Video(video_hash))
  26                     .catch((res) => this.restExtractor.handleError(res));
  27   }
  28
  29   getVideos(pagination: RestPagination, sort: SortField) {
  30     const params = this.restService.buildRestGetParams(pagination, sort);
  31
  32     return this.http.get(VideoService.BASE_VIDEO_URL, { search: params })
  33                     .map(res => res.json())
  34                     .map(this.extractVideos)
  35                     .catch((res) => this.restExtractor.handleError(res));
  36   }
  37
  38   removeVideo(id: string) {
  39     return this.authHttp.delete(VideoService.BASE_VIDEO_URL + id)
  40                         .map(this.restExtractor.extractDataBool)
  41                         .catch((res) => this.restExtractor.handleError(res));
  42   }
  43
  44   searchVideos(search: Search, pagination: RestPagination, sort: SortField) {
  45     const params = this.restService.buildRestGetParams(pagination, sort);
  46
  47     if (search.field) params.set('field', search.field);
  48
  49     return this.http.get(VideoService.BASE_VIDEO_URL + 'search/' + encodeURIComponent(search.value), { search: params })
  50                     .map(this.restExtractor.extractDataList)
  51                     .map(this.extractVideos)
  52                     .catch((res) => this.restExtractor.handleError(res));
  53   }
  54
  55   private extractVideos(result: ResultList) {
  56     const videosJson = result.data;
  57     const totalVideos = result.total;
  58     const videos = [];
  59     for (const videoJson of videosJson) {
  60       videos.push(new Video(videoJson));
  61     }
  62
  63     return { videos, totalVideos };
  64   }
  65 }