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                     .catch((res) => this.restExtractor.handleError(res));
  26   }
  27
  28   getVideos(pagination: RestPagination, sort: SortField) {
  29     const params = this.restService.buildRestGetParams(pagination, sort);
  30
  31     return this.http.get(VideoService.BASE_VIDEO_URL, { search: params })
  32                     .map(res => res.json())
  33                     .map(this.extractVideos)
  34                     .catch((res) => this.restExtractor.handleError(res));
  35   }
  36
  37   removeVideo(id: string) {
  38     return this.authHttp.delete(VideoService.BASE_VIDEO_URL + id)
  39                         .map(this.restExtractor.extractDataBool)
  40                         .catch((res) => this.restExtractor.handleError(res));
  41   }
  42
  43   searchVideos(search: Search, pagination: RestPagination, sort: SortField) {
  44     const params = this.restService.buildRestGetParams(pagination, sort);
  45
  46     if (search.field) params.set('field', search.field);
  47
  48     return this.http.get(VideoService.BASE_VIDEO_URL + 'search/' + encodeURIComponent(search.value), { search: params })
  49                     .map(this.restExtractor.extractDataList)
  50                     .map(this.extractVideos)
  51                     .catch((res) => this.restExtractor.handleError(res));
  52   }
  53
  54   private extractVideos(result: ResultList) {
  55     const videosJson = result.data;
  56     const totalVideos = result.total;
  57     const videos = [];
  58     for (const videoJson of videosJson) {
  59       videos.push(new Video(videoJson));
  60     }
  61
  62     return { videos, totalVideos };
  63   }
  64 }