/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
import {Component, OnDestroy, OnInit, ViewChild} from '@angular/core';
import {AccountFormComponent} from '../form.component';
import {Account} from '../../../../services/accounting/domain/account.model';
import {ActivatedRoute, Router} from '@angular/router';
import {Ledger} from '../../../../services/accounting/domain/ledger.model';
import * as fromAccounting from '../../../store';
import {Store} from '@ngrx/store';
import {Subscription} from 'rxjs/Subscription';
import {Error} from '../../../../services/domain/error.model';
import {CREATE, RESET_FORM} from '../../../store/account/account.actions';

@Component({
  templateUrl: './create.form.component.html'
})
export class CreateAccountFormComponent implements OnInit, OnDestroy {

  private formStateSubscription: Subscription;
  private selectedLedgerSubscription: Subscription;

  ledger: Ledger;

  @ViewChild('form') formComponent: AccountFormComponent;

  account: Account = {
    identifier: '',
    name: '',
    ledger: '',
    balance: 0
  };

  constructor(private router: Router, private route: ActivatedRoute, private store: Store<fromAccounting.State>) {}

  ngOnInit() {
    this.formStateSubscription = this.store.select(fromAccounting.getAccountFormError)
      .filter((error: Error) => !!error)
      .subscribe((error: Error) => this.formComponent.showIdentifierValidationError());

    this.selectedLedgerSubscription = this.store.select(fromAccounting.getSelectedLedger)
      .filter(ledger => !!ledger)
      .subscribe(ledger => {
        this.ledger = ledger;
        this.account.ledger = this.ledger.identifier;
        this.account.type = this.ledger.type;
      });
  }

  ngOnDestroy(): void {
    this.formStateSubscription.unsubscribe();
    this.selectedLedgerSubscription.unsubscribe();

    this.store.dispatch({ type: RESET_FORM });
  }

  onSave(account: Account) {
    this.store.dispatch({ type: CREATE, payload: {
      account,
      activatedRoute: this.route
    }});
  }

  onCancel() {
    this.navigateAway();
  }

  navigateAway(): void {
    this.router.navigate(['../../'], { relativeTo: this.route });
  }
}