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 { AuthService } from '../../core';
   8 import { AuthHttp, RestExtractor, RestPagination, RestService, ResultList } from '../../shared';
   9 import { Video } from './video.model';
  10
  11 @Injectable()
  12 export class VideoService {
  13   private static BASE_VIDEO_URL = '/api/v1/videos/';
  14
  15   constructor(
  16     private authService: AuthService,
  17     private authHttp: AuthHttp,
  18     private http: Http,
  19     private restExtractor: RestExtractor,
  20     private restService: RestService
  21   ) {}
  22
  23   getVideo(id: string): Observable<Video> {
  24     return this.http.get(VideoService.BASE_VIDEO_URL + id)
  25                     .map(this.restExtractor.extractDataGet)
  26                     .map(video_hash => new Video(video_hash))
  27                     .catch((res) => this.restExtractor.handleError(res));
  28   }
  29
  30   getVideos(pagination: RestPagination, sort: SortField) {
  31     const params = this.restService.buildRestGetParams(pagination, sort);
  32
  33     return this.http.get(VideoService.BASE_VIDEO_URL, { search: params })
  34                     .map(res => res.json())
  35                     .map(this.extractVideos)
  36                     .catch((res) => this.restExtractor.handleError(res));
  37   }
  38
  39   removeVideo(id: string) {
  40     return this.authHttp.delete(VideoService.BASE_VIDEO_URL + id)
  41                         .map(this.restExtractor.extractDataBool)
  42                         .catch((res) => this.restExtractor.handleError(res));
  43   }
  44
  45   searchVideos(search: Search, pagination: RestPagination, sort: SortField) {
  46     const params = this.restService.buildRestGetParams(pagination, sort);
  47
  48     if (search.field) params.set('field', search.field);
  49
  50     return this.http.get(VideoService.BASE_VIDEO_URL + 'search/' + encodeURIComponent(search.value), { search: params })
  51                     .map(this.restExtractor.extractDataList)
  52                     .map(this.extractVideos)
  53                     .catch((res) => this.restExtractor.handleError(res));
  54   }
  55
  56   private extractVideos(result: ResultList) {
  57     const videosJson = result.data;
  58     const totalVideos = result.total;
  59     const videos = [];
  60     for (const videoJson of videosJson) {
  61       videos.push(new Video(videoJson));
  62     }
  63
  64     return { videos, totalVideos };
  65   }
  66 }