/* -*- Mode: javascript; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

(function() {
  'use strict';

  /**
   * @name Alarm
   * @constructor
   */
  function Alarm() {
    this.currentAlarm = null;
  }

  /**
   * @name getAlarms
   * @desc Fetch the list of alarms from the server and use the last one
   */
  Alarm.getAlarms = function() {
    var _this = this;
    var now = new Date();
    var browserTime = Math.floor(now.getTime()/1000);

    this.$$resource.fetch('', 'alarmslist?browserTime=' + browserTime).then(function(data) {
      
      var alarms = data.alarms.sort(function reverseSortByAlarmTime(a, b) {
        var x = parseInt(a[2]);
        var y = parseInt(b[2]);
        return (y - x);
      });

      if (alarms.length > 0) {
        var next = alarms.pop();
        var now = new Date();
        var utc = Math.floor(now.getTime()/1000);
        var url = next[0] + '/' + next[1];
        var alarmTime = parseInt(next[2]);
        var delay = alarmTime;
        if (alarmTime > 0) delay -= utc;
        var d = new Date(alarmTime*1000);
        //console.log ("now = " + now.toUTCString());
        //console.log ("next event " + url + " in " + delay + " seconds (on " + d.toUTCString() + ")");

        var f = angular.bind(_this, Alarm.showAlarm, url);

        if (_this.currentAlarm)
          _this.$timeout.cancel(_this.currentAlarm);

        _this.currentAlarm = _this.$timeout(f, delay*1000);
      }
    });
  };
  
  /**
   * @name showAlarm
   * @desc Show the latest alarm using a toast
   * @param url The URL of the calendar component for snoozing
   */
  Alarm.showAlarm = function(url) {
    var _this = this;

    this.$$resource.fetch(url, '?resetAlarm=yes');

    this.$toast.show({
      position: 'top right',
      hideDelay: 0,
      template: [
        '<md-toast>',
        ' <md-input-container>',
        '   <md-select ng-model="reminder">',
        '    <md-option value=5>',
              l('5 minutes'),
        '    </md-option>',
        '    <md-option value=10>',
              l('10 minutes'),
        '    </md-option>',
        '    <md-option value=15>',
              l('15 minutes'),
        '    </md-option>',
        '    <md-option value=30>',
              l('30 minutes'),
        '    </md-option>',
        '    <md-option value=45>',
              l('45 minutes'),
        '    </md-option>',
        '    <md-option value=60>',
              l('1 hour'),
        '    </md-option>',
        '    <md-option value=1440>',
              l('1 day'),
        '    </md-option>',
        '  </md-select>',
        ' </md-input-container>',
        ' <md-button ng-click="cancel()">',
           l('Cancel'),
        ' </md-button>',
        ' <md-button ng-click="ok()">',
           l('Ok'),
        ' </md-button>',
        '</md-toast>'
        ].join(''),
      locals: {
        url: url
      },
      controller: AlarmController
    });
    
    /**
     * @ngInject
     */
    AlarmController.$inject = ['scope', '$mdToast', 'url'];
    function AlarmController(scope, $mdToast, url) {
      scope.reminder = '10';
      scope.cancel = function() {
        $mdToast.hide();
      };
      scope.ok = function() {
        _this.$$resource.fetch(url, 'view?snoozeAlarm=' + scope.reminder);
        $mdToast.hide();
      };
    }
  };

  /**
   * @memberof Alarm
   * @desc The factory we'll register as Alarm in the Angular module SOGo.Common
   * @ngInject
   */
  AlarmService.$inject = ['$timeout', 'sgSettings', 'Resource', '$mdToast'];
  function AlarmService($timeout, Settings, Resource, $mdToast) {
    angular.extend(Alarm, {
      $timeout: $timeout,
      $$resource: new Resource(Settings.activeUser('folderURL') + 'Calendar', Settings.activeUser()),
      $toast: $mdToast
    });

    return Alarm; // return constructor
  }

  /* Factory registration in Angular module */
  angular
    .module('SOGo.Common')
    .factory('Alarm', AlarmService);

})();
