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

import { Season } from '../models/season.model';

@Injectable({
  providedIn: 'root'
})

export class SeasonsService {
  seasons: Season[] = [];

  constructor(private httpClient: HttpClient) {
  }

  getAllSeasons(): Observable<Array<Season>> {
      return this.httpClient.get<Array<Season>>("assets/Seasons.json")
  }

  getSeason(id: string): Observable<Season | undefined> {
    let promise = new Promise<Season|undefined>((resolve, reject) =>{
      this.httpClient.get<Array<Season>>("assets/Seasons.json").subscribe(data => {
        for(let season of data) {
          if(season.id == id) {
            resolve(season);
          }
        }
        reject(undefined);
      });
    });
    return from(promise);
  }

  create(title: string, subTitle: string, startingDate: Date) {
    return this.httpClient.post("http://localhost:3000/seasons/", {title, subTitle, startingDate});
  }
}