79 lines
2.6 KiB
TypeScript
79 lines
2.6 KiB
TypeScript
import { Injectable } from '@angular/core';
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import { Http, Response, URLSearchParams } from '@angular/http';
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import { Observable } from 'rxjs/Rx';
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import { Pagination } from './pagination.model';
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import { Search } from '../../shared/index';
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import { SortField } from './sort-field.type';
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import { AuthService } from '../../users/index';
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import { Video } from './video.model';
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@Injectable()
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export class VideoService {
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private static BASE_VIDEO_URL = '/api/v1/videos/';
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constructor(private http: Http, private authService: AuthService) {}
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getVideos(pagination: Pagination, sort: SortField) {
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const params = this.createPaginationParams(pagination);
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if (sort) params.set('sort', sort);
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return this.http.get(VideoService.BASE_VIDEO_URL, { search: params })
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.map(res => res.json())
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.map(this.extractVideos)
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.catch(this.handleError);
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}
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getVideo(id: string) {
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return this.http.get(VideoService.BASE_VIDEO_URL + id)
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.map(res => <Video> res.json())
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.catch(this.handleError);
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}
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removeVideo(id: string) {
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const options = this.authService.getAuthRequestOptions();
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return this.http.delete(VideoService.BASE_VIDEO_URL + id, options)
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.map(res => <number> res.status)
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.catch(this.handleError);
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}
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searchVideos(search: Search, pagination: Pagination, sort: SortField) {
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const params = this.createPaginationParams(pagination);
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if (search.field) params.set('field', search.field);
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if (sort) params.set('sort', sort);
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return this.http.get(VideoService.BASE_VIDEO_URL + 'search/' + encodeURIComponent(search.value), { search: params })
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.map(res => res.json())
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.map(this.extractVideos)
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.catch(this.handleError);
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}
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private extractVideos(body: any) {
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const videos_json = body.data;
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const totalVideos = body.total;
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const videos = [];
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for (const video_json of videos_json) {
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videos.push(new Video(video_json));
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}
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return { videos, totalVideos };
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}
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private handleError(error: Response) {
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console.error(error);
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return Observable.throw(error.json().error || 'Server error');
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}
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private createPaginationParams(pagination: Pagination) {
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const params = new URLSearchParams();
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const start: number = (pagination.currentPage - 1) * pagination.itemsPerPage;
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const count: number = pagination.itemsPerPage;
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params.set('start', start.toString());
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params.set('count', count.toString());
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return params;
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}
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}
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