// -- copyright
// OpenProject is a project management system.
// Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License version 3.
//
// OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
// Copyright (C) 2006-2013 Jean-Philippe Lang
// Copyright (C) 2010-2013 the ChiliProject Team
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
//
// See doc/COPYRIGHT.rdoc for more details.
// ++

import {BehaviorSubject} from 'rxjs';
import {openprojectLegacyModule} from "../../openproject-legacy-app";
import {GonRef} from '../gon-ref/gon-ref';

export interface HideSectionDefinition {
  key:string;
  label:string;
}

export class HideSectionService {
  private displayed = new BehaviorSubject<HideSectionDefinition[]>([]);
  private all = new BehaviorSubject<HideSectionDefinition[]>([]);

  public displayed$ = this.displayed.asObservable();
  public all$ = this.all.asObservable();

  constructor(protected GonRef:GonRef) {
    this.all.next(this.GonRef.get('hideSections').all);
    this.displayed.next(this.GonRef.get('hideSections').active);
  }

  hide(key:string) {
    let newDisplayed = _.filter(this.displayed.getValue(), (candidate) => candidate.key !== key);
    this.displayed.next(newDisplayed);
  }

  show(section:HideSectionDefinition) {
    let newDisplayed = _.concat(this.displayed.getValue(), section);
    this.displayed.next(newDisplayed);
  }
}

openprojectLegacyModule.service('HideSectionService', HideSectionService);