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import {Injectable} from '@angular/core';
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import {HttpClient} from '@angular/common/http';
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import {Observable} from 'rxjs';
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import {Page} from '../models/paging/page.interface';
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import {environment} from '../../../environments/environment';
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@Injectable({
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providedIn: 'root'
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})
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export class GenericRestService<T> {
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// tslint:disable-next-line:variable-name
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private _baseUrl: string;
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public get baseUrl(): string {
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return this._baseUrl;
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}
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constructor(url: string, private httpService: HttpClient) {
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// TODO when we unify the backend will be like that but for now
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// if (url.endsWith('/')) {
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// throw Error('Malformed url: ' + url + '\nEnds with slash');
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// }
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// if (url.startsWith('/')) {
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// throw Error('Malformed url: ' + url + '\nStarts with slash');
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// }
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// this._baseUrl = environment.ApiUrl + '/' + url;
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// will be like this
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if (url.endsWith('/')) {
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throw Error('Malformed url: ' + url + '\nEnds with slash');
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}
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if (url.startsWith('/')) {
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throw Error('Malformed url: ' + url + '\nStarts with slash');
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}
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this._baseUrl = url;
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// this remains unchanged
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this._baseUrl = url;
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}
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public getAll(): Observable<T[]> {
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return this.httpService.get<T[]>(this.baseUrl + '/all');
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}
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public getAllPaged(page: number, offset: number): Observable<Page<T>> {
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if (!environment.production && offset !== 10) {
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console.log('DEV MESSAGE: The deal is 10 results per page. Your offset became 10.I only show up in non-prod environment :)');
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}
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return this.httpService.get<Page<T>>(this.baseUrl + '/all', {
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params: {
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page: page.toString(),
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offset: '10'
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}
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});
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}
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public getById(id: string | number): Observable<T> {
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return this.httpService.get<T>(this.baseUrl + '/' + id.toString());
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}
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public update(data: T): Observable<T> {
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return this.httpService.put<T>(this.baseUrl, data);
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}
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public create(data: T): Observable<T> {
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return this.httpService.post<T>(this.baseUrl, data);
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}
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public delete(id: string | number): Observable<T> {
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return this.httpService.delete<T>(this.baseUrl + '/' + id.toString());
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}
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public deleteById(data: T): Observable<T> {
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return this.httpService.delete<T>(this.baseUrl, data);
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}
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public searchByCriteriaPaged(page: number, offset: number, criteria: any, urlExtension: string): Observable<Page<T>> {
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// TODO make this better
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if (!environment.production && offset !== 10) {
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console.log('DEV MESSAGE: The deal is 10 results per page. Your offset became 10.I only show up in non-prod environment :)');
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}
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if (urlExtension) {
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if (urlExtension.endsWith('/')) {
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throw Error('Malformed url: ' + urlExtension + '\nEnds with slash');
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}
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if (urlExtension.startsWith('/')) {
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throw Error('Malformed url: ' + urlExtension + '\nStarts with slash');
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}
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urlExtension = '/' + urlExtension;
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} else {
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urlExtension = '';
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}
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return this.httpService.post<Page<T>>(this.baseUrl + urlExtension, criteria, {
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params: {
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page: page.toString(),
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offset: '10'
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}
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});
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}
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}
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