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 import 'rxjs/add/operator/catch';
   5 import 'rxjs/add/operator/map';
   6
   7 import { Search } from '../../shared';
   8 import { SortField } from './sort-field.type';
   9 import { AuthService } from '../../core';
  10 import { AuthHttp, RestExtractor, RestPagination, RestService, ResultList } from '../../shared';
  11 import { Video } from './video.model';
  12
  13 @Injectable()
  14 export class VideoService {
  15   private static BASE_VIDEO_URL = '/api/v1/videos/';
  16
  17   constructor(
  18     private authService: AuthService,
  19     private authHttp: AuthHttp,
  20     private http: Http,
  21     private restExtractor: RestExtractor,
  22     private restService: RestService
  23   ) {}
  24
  25   getVideo(id: string): Observable<Video> {
  26     return this.http.get(VideoService.BASE_VIDEO_URL + id)
  27                     .map(this.restExtractor.extractDataGet)
  28                     .map(video_hash => new Video(video_hash))
  29                     .catch((res) => this.restExtractor.handleError(res));
  30   }
  31
  32   getVideos(pagination: RestPagination, sort: SortField) {
  33     const params = this.restService.buildRestGetParams(pagination, sort);
  34
  35     return this.http.get(VideoService.BASE_VIDEO_URL, { search: params })
  36                     .map(res => res.json())
  37                     .map(this.extractVideos)
  38                     .catch((res) => this.restExtractor.handleError(res));
  39   }
  40
  41   removeVideo(id: string) {
  42     return this.authHttp.delete(VideoService.BASE_VIDEO_URL + id)
  43                         .map(this.restExtractor.extractDataBool)
  44                         .catch((res) => this.restExtractor.handleError(res));
  45   }
  46
  47   searchVideos(search: Search, pagination: RestPagination, sort: SortField) {
  48     const params = this.restService.buildRestGetParams(pagination, sort);
  49
  50     if (search.field) params.set('field', search.field);
  51
  52     return this.http.get(VideoService.BASE_VIDEO_URL + 'search/' + encodeURIComponent(search.value), { search: params })
  53                     .map(this.restExtractor.extractDataList)
  54                     .map(this.extractVideos)
  55                     .catch((res) => this.restExtractor.handleError(res));
  56   }
  57
  58   private extractVideos(result: ResultList) {
  59     const videosJson = result.data;
  60     const totalVideos = result.total;
  61     const videos = [];
  62     for (const videoJson of videosJson) {
  63       videos.push(new Video(videoJson));
  64     }
  65
  66     return { videos, totalVideos };
  67   }
  68 }