import { Injectable } from '@angular/core';
import {GlobalConstants} from '../global-constants';
import {HttpClient, HttpEvent, HttpRequest} from '@angular/common/http';
import {Observable} from 'rxjs';
import {FileInfo} from '../models/file-info';

@Injectable({
  providedIn: 'root'
})
export class FileUploadService {
  private baseUrl = GlobalConstants.API_URL + '/file';

  constructor(private http: HttpClient) {}

  upload(file: File): Observable<HttpEvent<any>> {
    const formData: FormData = new FormData();
    formData.append('file', file);

    const req = new HttpRequest('POST', `${this.baseUrl}/upload`, formData, {
      responseType: 'json',
    });

    return this.http.request(req);
  }

  getFiles(): Observable<FileInfo[]> {
    return this.http.get<FileInfo[]>(`${this.baseUrl}/files`);
  }
}