///
/// Copyright © 2016-2019 The Thingsboard Authors
///
/// Licensed 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 { OnDestroy } from '@angular/core';
import { PageComponent } from '@shared/components/page.component';
import { Store } from '@ngrx/store';
import { AppState } from '@core/core.state';
import { MatDialogRef } from '@angular/material/dialog';
import { NavigationStart, Router, RouterEvent } from '@angular/router';
import { Subscription } from 'rxjs';
import { filter } from 'rxjs/operators';

export abstract class DialogComponent<T, R = any> extends PageComponent implements OnDestroy {

  routerSubscription: Subscription;

  protected constructor(protected store: Store<AppState>,
                        protected router: Router,
                        protected dialogRef: MatDialogRef<T, R>) {
    super(store);
    this.routerSubscription = this.router.events
      .pipe(
        filter((event: RouterEvent) => event instanceof NavigationStart),
        filter(() => !!this.dialogRef)
      )
      .subscribe(() => {
        this.dialogRef.close();
      });
  }

  ngOnDestroy(): void {
    super.ngOnDestroy();
    if (this.routerSubscription) {
      this.routerSubscription.unsubscribe();
    }
  }
}