import { Observable } from 'rxjs/Observable';
import { Injectable } from '@angular/core';
import {HttpClient, HttpRequest, HttpEvent} from '@angular/common/http';

@Injectable()
export class UploadFileService {

  private filename: string;

  constructor(private http: HttpClient) { }

  pushFileToStorage(file: File): Observable<HttpEvent<{}>> {
    const formData: FormData = new FormData();
    formData.append('file', file);
    this.filename = file.name;

    const req = new HttpRequest('POST', 'http://localhost:8080/post', formData, {
      reportProgress: true,
      responseType: 'text'
    });

    return this.http.request(req);
  }

  getFiles(): Observable<any> {
    return this.http.get('http://localhost:8080/getAllFiles');
  }

  setFilename(filename: string) {
    this.filename = filename;
  }

  getFilename(): string {
    return this.filename;
  }

}