D-Net

/**

 * Created by stefania on 7/17/17.

 */

import { Injectable } from '@angular/core';

import { environment } from '../../environments/environment';

import { HttpClient } from '@angular/common/http';

import { PageContent } from '../domain/page-content';

import { catchError } from 'rxjs/operators';

import { throwError } from 'rxjs';

@Injectable()

export class HelpContentService {

  private _helpServiceUrl = environment.FAQ_ENDPOINT;

  constructor (private httpClient: HttpClient) {

  }

  getActivePageContent(route: string) {

    const url = this._helpServiceUrl + '/page/route?q=' + route;

    console.log(`sending request at: ${url}`);

    return this.httpClient.get<PageContent>(url).pipe(catchError(this.handleError));

  }

  private extractData(res: Response) {

    const body = res;

    return body.body || { };

  }

  private handleError (error: Response | any) {

    // In a real world app, we might use a remote logging infrastructure

    // We'd also dig deeper into the error to get a better message

    let errMsg = '';

    console.log(error);

    if (error instanceof Response) {

      const body = error.text() || '';

      errMsg = `${error.status} - ${error.statusText || ''} ${body}`;

    } else {

      errMsg = (error.message) ? error.message :

        error.status ? `${error.status} - ${error.statusText}` : 'Server error';

      console.error(errMsg); // log to console instead

    }

    return throwError(errMsg);

  }

}