import { Injectable }    from '@angular/core';
import { HeroTaxReturn } from './hero';
import { HeroesService } from './heroes.service';
 
@Injectable()
export class HeroTaxReturnService {
  private currentTaxReturn: HeroTaxReturn;
  private originalTaxReturn: HeroTaxReturn;
 
  constructor(private heroService: HeroesService) { }
 
  set taxReturn (htr: HeroTaxReturn) {
    this.originalTaxReturn = htr;
    this.currentTaxReturn  = htr.clone();
  }
 
  get taxReturn (): HeroTaxReturn {
    return this.currentTaxReturn;
  }
 
  restoreTaxReturn() {
    this.taxReturn = this.originalTaxReturn;
  }
 
  saveTaxReturn() {
    this.taxReturn = this.currentTaxReturn;
    this.heroService.saveTaxReturn(this.currentTaxReturn).subscribe();
  }
}