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 { RateType } from './rate-type.type';
  10 import { AuthService } from '../../core';
  11 import {
  12   AuthHttp,
  13   RestExtractor,
  14   RestPagination,
  15   RestService,
  16   ResultList,
  17   UserService
  18 } from '../../shared';
  19 import { Video } from './video.model';
  20
  21 @Injectable()
  22 export class VideoService {
  23   private static BASE_VIDEO_URL = '/api/v1/videos/';
  24
  25   videoCategories: Array<{ id: number, label: string }> = [];
  26
  27   constructor(
  28     private authService: AuthService,
  29     private authHttp: AuthHttp,
  30     private http: Http,
  31     private restExtractor: RestExtractor,
  32     private restService: RestService
  33   ) {}
  34
  35   loadVideoCategories() {
  36     return this.http.get(VideoService.BASE_VIDEO_URL + 'categories')
  37                     .map(this.restExtractor.extractDataGet)
  38                     .subscribe(data => {
  39                       Object.keys(data).forEach(categoryKey => {
  40                         this.videoCategories.push({
  41                           id: parseInt(categoryKey),
  42                           label: data[categoryKey]
  43                         });
  44                       });
  45                     });
  46   }
  47
  48   getVideo(id: string): Observable<Video> {
  49     return this.http.get(VideoService.BASE_VIDEO_URL + id)
  50                     .map(this.restExtractor.extractDataGet)
  51                     .map(video_hash => new Video(video_hash))
  52                     .catch((res) => this.restExtractor.handleError(res));
  53   }
  54
  55   getVideos(pagination: RestPagination, sort: SortField) {
  56     const params = this.restService.buildRestGetParams(pagination, sort);
  57
  58     return this.http.get(VideoService.BASE_VIDEO_URL, { search: params })
  59                     .map(res => res.json())
  60                     .map(this.extractVideos)
  61                     .catch((res) => this.restExtractor.handleError(res));
  62   }
  63
  64   removeVideo(id: string) {
  65     return this.authHttp.delete(VideoService.BASE_VIDEO_URL + id)
  66                         .map(this.restExtractor.extractDataBool)
  67                         .catch((res) => this.restExtractor.handleError(res));
  68   }
  69
  70   searchVideos(search: Search, pagination: RestPagination, sort: SortField) {
  71     const params = this.restService.buildRestGetParams(pagination, sort);
  72
  73     if (search.field) params.set('field', search.field);
  74
  75     return this.http.get(VideoService.BASE_VIDEO_URL + 'search/' + encodeURIComponent(search.value), { search: params })
  76                     .map(this.restExtractor.extractDataList)
  77                     .map(this.extractVideos)
  78                     .catch((res) => this.restExtractor.handleError(res));
  79   }
  80
  81   reportVideo(id: string, reason: string) {
  82     const url = VideoService.BASE_VIDEO_URL + id + '/abuse';
  83     const body = {
  84       reason
  85     };
  86
  87     return this.authHttp.post(url, body)
  88                         .map(this.restExtractor.extractDataBool)
  89                         .catch((res) => this.restExtractor.handleError(res));
  90   }
  91
  92   setVideoLike(id: string) {
  93     return this.setVideoRate(id, 'like');
  94   }
  95
  96   setVideoDislike(id: string) {
  97     return this.setVideoRate(id, 'dislike');
  98   }
  99
 100   getUserVideoRating(id: string) {
 101     const url = UserService.BASE_USERS_URL + '/me/videos/' + id + '/rating';
 102
 103     return this.authHttp.get(url)
 104                         .map(this.restExtractor.extractDataGet)
 105                         .catch((res) => this.restExtractor.handleError(res));
 106   }
 107
 108   private setVideoRate(id: string, rateType: RateType) {
 109     const url = VideoService.BASE_VIDEO_URL + id + '/rate';
 110     const body = {
 111       rating: rateType
 112     };
 113
 114     return this.authHttp.put(url, body)
 115                         .map(this.restExtractor.extractDataBool)
 116                         .catch((res) => this.restExtractor.handleError(res));
 117   }
 118
 119   private extractVideos(result: ResultList) {
 120     const videosJson = result.data;
 121     const totalVideos = result.total;
 122     const videos = [];
 123     for (const videoJson of videosJson) {
 124       videos.push(new Video(videoJson));
 125     }
 126
 127     return { videos, totalVideos };
 128   }
 129 }