/* -*- Mode: javascript; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* JavaScript for common UI services */

(function() {
  'use strict';

  /**
   * @name Dialog
   * @constructor
   */
  function Dialog() {
  }

  /**
   * @name alert
   * @desc Show an alert dialog box with a single "OK" button
   * @param {string} title
   * @param {string} content
   */
  Dialog.alert = function(title, content) {
    this.$modal.open({
      template:
      '<h2 data-ng-bind-html="title"></h2>' +
        '<p data-ng-bind-html="content"></p>' +
        '<a class="button button-primary" ng-click="closeModal()">' + l('OK') + '</a>' +
        '<span class="close-reveal-modal" ng-click="closeModal()"><i class="icon-close"></i></span>',
      windowClass: 'small',
      controller: function($scope, $modalInstance) {
        $scope.title = title;
        $scope.content = content;
        $scope.closeModal = function() {
          $modalInstance.close();
        };
      }
    });
  };

  /**
   * @name confirm
   * @desc Show a confirmation dialog box with buttons "Cancel" and "OK"
   * @param {string} title
   * @param {string} content
   * @returns a promise that always resolves, but returns true only if the user user has clicked on the
   * 'OK' button
   */
  Dialog.confirm = function(title, content) {
    var d = this.$q.defer();
    this.$modal.open({
      template:
        '<h2 data-ng-bind-html="title"></h2>' +
        '<p data-ng-bind-html="content"></p>' +
        '<a class="button button-primary" ng-click="confirm()">' + l('OK') + '</a>' +
        '<a class="button button-secondary" ng-click="closeModal()">' + l('Cancel') + '</a>' +
        '<span class="close-reveal-modal" ng-click="closeModal()"><i class="icon-close"></i></span>',
      windowClass: 'small',
      controller: function($scope, $modalInstance) {
        $scope.title = title;
        $scope.content = content;
        $scope.closeModal = function() {
          $modalInstance.close();
          d.resolve(false);
        };
        $scope.confirm = function() {
          $modalInstance.close();
          d.resolve(true);
        };
      }
    });
    return d.promise;
  };

  Dialog.prompt = function(title, inputPlaceholder, options) {
    var o = options || {},
        d = this.$q.defer();
    this.$modal.open({
      template:
      '<h2 ng-bind-html="title"></h2>' +
        '<form><input type="' + (o.inputType || 'text')
        + '" placeholder="' + (inputPlaceholder || '') + '" ng-model="inputValue" /></form>' +
        '<a class="button button-primary" ng-click="confirm(inputValue)">' + l('OK') + '</a>' +
        '<a class="button button-secondary" ng-click="closeModal()">' + l('Cancel') + '</a>' +
        '<span class="close-reveal-modal" ng-click="closeModal()"><i class="icon-close"></i></span>',
      windowClass: 'small',

      controller: function($scope, $modalInstance) {
        $scope.title = title;
        $scope.inputValue = o.inputValue || '';
        $scope.closeModal = function() {
          $modalInstance.close();
          d.resolve(false);
        };
        $scope.confirm = function(value) {
          $modalInstance.close();
          d.resolve(value);
        };
      }
    });
    return d.promise;
  };

  /**
   * @memberof Dialog
   * @desc The factory we'll register as sgDialog in the Angular module SOGo.UIDesktop
   */
  Dialog.$factory = ['$modal', '$q', function($modal, $q) {
    angular.extend(Dialog, { $modal: $modal, $q: $q });

    return Dialog; // return constructor
  }];

  /* Angular module instanciation */
  angular.module('SOGo.UIDesktop', ['mm.foundation'])

  /* Factory registration in Angular module */
    .factory('sgDialog', Dialog.$factory)

  /**
   * @desc A directive evaluated when the escape key is pressed.
   */
    .directive('sgEscape', function() {
      var ESCAPE_KEY = 27;
      return function (scope, elem, attrs) {
	elem.bind('keydown', function (event) {
	  if (event.keyCode === ESCAPE_KEY) {
	    scope.$apply(attrs.sgEscape);
	  }
	});
      };
    });

})();