import { Injectable } from '@angular/core';
import { Headers, Http } from '@angular/http';

import 'rxjs/add/operator/toPromise';

import { ServiceObject } from '../models/service-object';

@Injectable()
export class ServiceObjectService {
  private url = 'http://localhost:5000/serviceobject';
  private headers = new Headers({'Content-Type': 'application/json'});
  constructor(private http: Http) { }
  getData(): Promise<ServiceObject[]> {
    return this.http.get(this.url)
      .toPromise()
      .then(response => response.json().busStopEditDsM as ServiceObject[])
      .catch(this.handleError);
  }
  update(id: number, data: string): Promise<any> {
    return this.http.post(this.url + '/update?id=' + id, data, { headers: this.headers })
      .toPromise()
      .then(response => response.json())
      .catch(this.handleError);
  }
  create(data: string): Promise<ServiceObject> {
    return this.http.post(this.url + '/create', data, { headers: this.headers })
      .toPromise()
      .then(response => response.json() as ServiceObject)
      .catch(this.handleError);
  }
  delete(id: number): Promise<any> {
    return this.http.delete(this.url + '/delete?id=' + id, { headers: this.headers })
      .toPromise()
      .then(response => response.json())
      .catch(this.handleError);
  }
  private handleError(error: any): Promise<any> {
    console.error('An error occured', error);
    return Promise.reject(error.message || error);
  }
}