// -- 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 {wpButtonsModule} from '../../../angular-modules';
import {WorkPackageButtonController, wpButtonDirective} from '../wp-buttons.module';

const screenfull:any = require('screenfull/dist/screenfull.js');

export class WorkPackageZenModeButtonController extends WorkPackageButtonController {
  public buttonId:string = 'work-packages-zen-mode-toggle-button';
  public buttonClass:string = 'toolbar-icon';
  public iconClass:string = 'icon-zen-mode';

  static inZenMode:boolean = false;

  private activateLabel:string;
  private deactivateLabel:string;
  private scope:ng.IScope;

  constructor(public I18n:op.I18n, protected $scope:ng.IScope) {
    super(I18n);
    this.scope = $scope;
    this.activateLabel = I18n.t('js.zen_mode.button_activate');
    this.deactivateLabel = I18n.t('js.zen_mode.button_deactivate');
    let self = this;
    
    if (screenfull.enabled) {
      screenfull.onchange(function() {
        // This event might get triggered several times for once leaving
        // fullscreen mode.
        if (!screenfull.isFullscreen) {
          self.deactivateZenMode();
          // The event wasn't cached from angularJS so we need to make sure
          // a rendering cycle gets triggered:
          self.scope.$apply();
        }
      });
    }
  }

  public get label():string {
    if (this.isActive()) {
      return this.deactivateLabel;
    } else {
      return this.activateLabel;
    }
  }

  public isToggle():boolean {
    return true;
  }

  public isActive():boolean {
    return WorkPackageZenModeButtonController.inZenMode;
  }

  private deactivateZenMode():void {
    WorkPackageZenModeButtonController.inZenMode = false;
    angular.element('body').removeClass('zen-mode');
    this.disabled = false;
    if (screenfull.enabled && screenfull.isFullscreen) {
      screenfull.exit();
    }
  }

  private activateZenMode():void {
    WorkPackageZenModeButtonController.inZenMode = true;
    angular.element('body').addClass('zen-mode');
    if (screenfull.enabled) {
      screenfull.request();
    }
  }

  public performAction() {
    if (WorkPackageZenModeButtonController.inZenMode) {
      this.deactivateZenMode();
    } else {
      this.activateZenMode();
    }
  }
}

function wpZenModeToggleButton():ng.IDirective {
  return wpButtonDirective({
    controller: WorkPackageZenModeButtonController
  });
}

wpButtonsModule.directive('wpZenModeToggleButton', wpZenModeToggleButton);