import { Injectable } from '@angular/core'; import { HttpClient } from '@angular/common/http'; import { BaseModel } from '../../shared/models/base/base-model'; import { Observable } from 'rxjs'; import { tap } from 'rxjs/operators'; /** * Send data back to server * * Contrast to dataStore service */ @Injectable({ providedIn: 'root' }) export class DataSendService { /** * Construct a DataSendService * * @param http The HTTP Client */ public constructor(private http: HttpClient) {} /** * Sends a post request with the model to the server. * Usually for new Models */ public createModel(model: BaseModel): Observable { return this.http.post('rest/' + model.collectionString + '/', model).pipe( tap( response => { // TODO: Message, Notify, Etc console.log('New Model added. Response :\n', response); }, error => console.error('createModel has returned an Error:\n', error) ) ); } /** * Function to change a model on the server. * * @param model the base model that is meant to be changed * @param method the required http method. might be put or patch */ public updateModel(model: BaseModel, method: 'put' | 'patch'): Observable { const restPath = `rest/${model.collectionString}/${model.id}`; let httpMethod; if (method === 'patch') { httpMethod = this.http.patch(restPath, model); } else if (method === 'put') { httpMethod = this.http.put(restPath, model); } return httpMethod.pipe( tap( response => { // TODO: Message, Notify, Etc console.log('Update model. Response :\n', response); }, error => console.error('updateModel has returned an Error:\n', error) ) ); } /** * Deletes the given model on the server * * @param model the BaseModel that shall be removed * @return Observable of BaseModel * * TODO Not tested */ public delete(model: BaseModel): Observable { if (model.id) { return this.http.delete('rest/' + model.collectionString + '/' + model.id).pipe( tap( response => { // TODO: Message, Notify, Etc console.log('the response: ', response); }, error => console.error('error during delete: ', error) ) ); } else { console.error('No model ID to delete'); } } }