import { ChangeDetectionStrategy, Component } from '@angular/core';
import { Address, B2BUnit, Country, UserAddressService } from '@spartacus/core';
import { Observable } from 'rxjs';
import {
  map,
  shareReplay,
  switchMap,
  tap,
  withLatestFrom,
} from 'rxjs/operators';
import { ItemService } from '../../../../shared/item.service';
import { CurrentUnitService } from '../../../services/current-unit.service';
import { UnitAddressItemService } from '../services/unit-address-item.service';

@Component({
  selector: 'cx-org-unit-address-details',
  templateUrl: './unit-address-details.component.html',
  changeDetection: ChangeDetectionStrategy.OnPush,
  host: { class: 'content-wrapper' },
  providers: [
    {
      provide: ItemService,
      useExisting: UnitAddressItemService,
    },
  ],
})
export class UnitAddressDetailsComponent {
  unit$: Observable<B2BUnit> = this.currentUnitService.item$;

  model$: Observable<Address> = this.itemService.key$.pipe(
    withLatestFrom(this.unit$),
    switchMap(([code, unit]) => this.itemService.load(unit.uid, code)),
    shareReplay({ bufferSize: 1, refCount: true })
  );

  getCountry(isoCode): Observable<Country> {
    return this.userAddressService.getDeliveryCountries().pipe(
      tap((countries: Country[]) => {
        if (Object.keys(countries).length === 0) {
          this.userAddressService.loadDeliveryCountries();
        }
      }),
      map((countries) =>
        countries.find((country) => country.isocode === isoCode)
      )
    );
  }

  constructor(
    protected itemService: ItemService<Address>,
    protected currentUnitService: CurrentUnitService,
    protected userAddressService: UserAddressService
  ) {}
}