///
/// Copyright © 2016-2023 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 { ChangeDetectionStrategy, Component, OnInit } from '@angular/core';
import { MenuService } from '@core/services/menu.service';
import { MenuSection } from '@core/services/menu.models';
import { Observable, of } from 'rxjs';
import { mergeMap, share } from 'rxjs/operators';

@Component({
  selector: 'tb-side-menu',
  templateUrl: './side-menu.component.html',
  styleUrls: ['./side-menu.component.scss'],
  changeDetection: ChangeDetectionStrategy.OnPush
})
export class SideMenuComponent implements OnInit {

  menuSections$: Observable<Array<MenuSection>>;

  constructor(private menuService: MenuService) {
    this.menuSections$ = this.menuService.menuSections().pipe(
      mergeMap((sections) => this.filterSections(sections)),
      share()
    );
  }

  trackByMenuSection(index: number, section: MenuSection){
    return section.id;
  }

  private filterSections(sections: Array<MenuSection>): Observable<Array<MenuSection>> {
    return of(sections.filter(section => !section.disabled));
  }

  ngOnInit() {
  }

}