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

export interface EnergyPrice {
  SEK_per_kWh: number;
  EUR_per_kWh: number;
  EXR: number;
  time_start: string;
  time_end: string;
}

@Injectable({
  providedIn: 'root'
})
export class EnergyPriceService {
  private apiBaseUrl = 'https://www.elprisetjustnu.se/api/v1/prices';
  private http = inject(HttpClient);

  getPrices(year: string, month: string, day: string, priceClass: string): Observable<EnergyPrice[]> {
    const url = `${this.apiBaseUrl}/${year}/${month}-${day}_${priceClass}.json`;
    return this.http.get<EnergyPrice[]>(url);
  }

  formatDate(date: Date): { year: string, month: string, day: string } {
    const year = date.getFullYear().toString();
    const month = (date.getMonth() + 1).toString().padStart(2, '0');
    const day = date.getDate().toString().padStart(2, '0');

    return { year, month, day };
  }
}