import { Injectable } from '@angular/core';
import { HttpClient } from '@angular/common/http';
import { map, Observable } from 'rxjs';
import { environment } from '../../environments/environment';
import { Sale } from '../models/sale.model';
import { ApiCollectionResponse } from '../models/api-response.model';
import { extractCollectionData } from '../utils/api-response.util';

@Injectable({
  providedIn: 'root'
})
export class SaleService {
  private apiUrl = `${environment.apiBaseUrl}/product-sales`;

  constructor(private http: HttpClient) {}

  getAll(): Observable<Sale[]> {
    return this.http
      .get<Sale[] | ApiCollectionResponse<Sale>>(this.apiUrl)
      .pipe(map(response => extractCollectionData(response)));
  }

  getById(id: number): Observable<Sale> {
    return this.http.get<Sale>(`${this.apiUrl}/${id}`);
  }

  create(sale: Sale): Observable<Sale> {
    return this.http.post<Sale>(this.apiUrl, sale);
  }

  update(id: number, sale: Sale): Observable<Sale> {
    return this.http.put<Sale>(`${this.apiUrl}/${id}`, sale);
  }

  delete(id: number): Observable<void> {
    return this.http.delete<void>(`${this.apiUrl}/${id}`);
  }
}