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58 lines
2.1 KiB
TypeScript
58 lines
2.1 KiB
TypeScript
import { HttpClient } from '@angular/common/http';
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/**
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* Created by stefania on 7/17/17.
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*/
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import { Injectable } from '@angular/core';
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import { Observable, throwError as observableThrowError } from 'rxjs';
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import { catchError, map } from 'rxjs/operators';
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import { environment } from '../../../../environments/environment';
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import { PageHelpContent } from '../../model/help-content/page-help-content';
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import { CachedContentItem } from './cached-content-item';
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@Injectable()
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export class HelpContentService {
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private _helpServiceUrl = environment.HelpService.Url;
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cache = new Map<String, CachedContentItem>();
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constructor(private http: HttpClient) {
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}
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// getActivePageContent(route: string) {
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// if (!this.cache.get(route) || !this.isValidCachedItem(route)) {
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// return this.http.get(this._helpServiceUrl + '/page/route?q=' + route).pipe(
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// map((res: Response) => {
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// this.cache.set(route, { timestamp: Date.now(), content: res.json() as PageHelpContent });
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// return res.json();
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// }),
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// catchError(this.handleError));
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// }
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// return Observable.create(observer => observer.next(this.cache.get(route).content));
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// }
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// private extractData(res: Response) {
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// const body = res.json();
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// return body. || {};
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// }
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// private handleError(error: Response | any) {
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// // In a real world app, we might use a remote logging infrastructure
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// // We'd also dig deeper into the error to get a better message
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// let errMsg = '';
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// if (error instanceof Response) {
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// const body = error.text() || '';
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// //const err = body.error || JSON.stringify(body);
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// errMsg = `${error.status} - ${error.statusText || ''} ${body}`;
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// } else {
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// errMsg = (error.message) ? error.message :
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// error.status ? `${error.status} - ${error.statusText}` : 'Server error';
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// console.error(errMsg); // log to console instead
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// }
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// return observableThrowError(errMsg);
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// }
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// isValidCachedItem(route) {
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// const cachedTimestamp = this.cache.get(route).timestamp;
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// const currentTimestamp = Date.now();
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// if (currentTimestamp - cachedTimestamp > 30000) { return false; } else { return true; }
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// }
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}
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