// The `$dialogProvider` can be used to configure global defaults for your
// `$dialog` service.
var dialogModule = angular.module('ui.bootstrap.dialog', ['ui.bootstrap.transition']);

dialogModule.controller('MessageBoxController', ['$scope', 'dialog', 'model', function($scope, dialog, model){
  $scope.title = model.title;
  $scope.message = model.message;
  $scope.buttons = model.buttons;
  $scope.close = function(res){
    dialog.close(res);
  };
}]);

dialogModule.provider("$dialog", function(){

  // The default options for all dialogs.
  var defaults = {
    backdrop: true,
    dialogClass: 'modal',
    backdropClass: 'modal-backdrop',
    transitionClass: 'fade',
    triggerClass: 'in',
    dialogOpenClass: 'modal-open',  
    resolve:{},
    backdropFade: false,
    dialogFade:false,
    keyboard: true, // close with esc key
    backdropClick: true // only in conjunction with backdrop=true
    /* other options: template, templateUrl, controller */
	};

	var globalOptions = {};

  var activeBackdrops = {value : 0};

  // The `options({})` allows global configuration of all dialogs in the application.
  //
  //      var app = angular.module('App', ['ui.bootstrap.dialog'], function($dialogProvider){
  //        // don't close dialog when backdrop is clicked by default
  //        $dialogProvider.options({backdropClick: false});
  //      });
	this.options = function(value){
		globalOptions = value;
	};

  // Returns the actual `$dialog` service that is injected in controllers
	this.$get = ["$http", "$document", "$compile", "$rootScope", "$controller", "$templateCache", "$q", "$transition", "$injector",
  function ($http, $document, $compile, $rootScope, $controller, $templateCache, $q, $transition, $injector) {

		var body = $document.find('body');

		function createElement(clazz) {
			var el = angular.element("<div>");
			el.addClass(clazz);
			return el;
		}

    // The `Dialog` class represents a modal dialog. The dialog class can be invoked by providing an options object
    // containing at lest template or templateUrl and controller:
    //
    //     var d = new Dialog({templateUrl: 'foo.html', controller: 'BarController'});
    //
    // Dialogs can also be created using templateUrl and controller as distinct arguments:
    //
    //     var d = new Dialog('path/to/dialog.html', MyDialogController);
		function Dialog(opts) {

      var self = this, options = this.options = angular.extend({}, defaults, globalOptions, opts);
      this._open = false;

      this.backdropEl = createElement(options.backdropClass);
      if(options.backdropFade){
        this.backdropEl.addClass(options.transitionClass);
        this.backdropEl.removeClass(options.triggerClass);
      }

      this.modalEl = createElement(options.dialogClass);
      if(options.dialogFade){
        this.modalEl.addClass(options.transitionClass);
        this.modalEl.removeClass(options.triggerClass);
      }

      this.handledEscapeKey = function(e) {
        if (e.which === 27) {
          self.close();
          e.preventDefault();
          self.$scope.$apply();
        }
      };

      this.handleBackDropClick = function(e) {
        self.close();
        e.preventDefault();
        self.$scope.$apply();
      };
    }

    // The `isOpen()` method returns wether the dialog is currently visible.
    Dialog.prototype.isOpen = function(){
      return this._open;
    };

    // The `open(templateUrl, controller)` method opens the dialog.
    // Use the `templateUrl` and `controller` arguments if specifying them at dialog creation time is not desired.
    Dialog.prototype.open = function(templateUrl, controller){
      var self = this, options = this.options;

      if(templateUrl){
        options.templateUrl = templateUrl;
      }
      if(controller){
        options.controller = controller;
      }

      if(!(options.template || options.templateUrl)) {
        throw new Error('Dialog.open expected template or templateUrl, neither found. Use options or open method to specify them.');
      }

      this._loadResolves().then(function(locals) {
        var $scope = locals.$scope = self.$scope = locals.$scope ? locals.$scope : $rootScope.$new();

        self.modalEl.html(locals.$template);

        if (self.options.controller) {
          var ctrl = $controller(self.options.controller, locals);
          self.modalEl.contents().data('ngControllerController', ctrl);
        }

        $compile(self.modalEl)($scope);
        self._addElementsToDom();
        body.addClass(self.options.dialogOpenClass);

        // trigger tranisitions
        setTimeout(function(){
          if(self.options.dialogFade){ self.modalEl.addClass(self.options.triggerClass); }
          if(self.options.backdropFade){ self.backdropEl.addClass(self.options.triggerClass); }
        });

        self._bindEvents();
      });

      this.deferred = $q.defer();
      return this.deferred.promise;
    };

    // closes the dialog and resolves the promise returned by the `open` method with the specified result.
    Dialog.prototype.close = function(result){
      var self = this;
      var fadingElements = this._getFadingElements();

      body.removeClass(self.options.dialogOpenClass);
      if(fadingElements.length > 0){
        for (var i = fadingElements.length - 1; i >= 0; i--) {
          $transition(fadingElements[i], removeTriggerClass).then(onCloseComplete);
        }
        return;
      }

      this._onCloseComplete(result);

      function removeTriggerClass(el){
        el.removeClass(self.options.triggerClass);
      }

      function onCloseComplete(){
        if(self._open){
          self._onCloseComplete(result);
        }
      }
    };

    Dialog.prototype._getFadingElements = function(){
      var elements = [];
      if(this.options.dialogFade){
        elements.push(this.modalEl);
      }
      if(this.options.backdropFade){
        elements.push(this.backdropEl);
      }

      return elements;
    };

    Dialog.prototype._bindEvents = function() {
      if(this.options.keyboard){ body.bind('keydown', this.handledEscapeKey); }
      if(this.options.backdrop && this.options.backdropClick){ this.backdropEl.bind('click', this.handleBackDropClick); }
    };

    Dialog.prototype._unbindEvents = function() {
      if(this.options.keyboard){ body.unbind('keydown', this.handledEscapeKey); }
      if(this.options.backdrop && this.options.backdropClick){ this.backdropEl.unbind('click', this.handleBackDropClick); }
    };

    Dialog.prototype._onCloseComplete = function(result) {
      this._removeElementsFromDom();
      this._unbindEvents();

      this.deferred.resolve(result);
    };

    Dialog.prototype._addElementsToDom = function(){
      body.append(this.modalEl);

      if(this.options.backdrop) { 
        if (activeBackdrops.value === 0) {
          body.append(this.backdropEl); 
        }
        activeBackdrops.value++;
      }

      this._open = true;
    };

    Dialog.prototype._removeElementsFromDom = function(){
      this.modalEl.remove();

      if(this.options.backdrop) { 
        activeBackdrops.value--;
        if (activeBackdrops.value === 0) {
          this.backdropEl.remove(); 
        }
      }
      this._open = false;
    };

    // Loads all `options.resolve` members to be used as locals for the controller associated with the dialog.
    Dialog.prototype._loadResolves = function(){
      var values = [], keys = [], templatePromise, self = this;

      if (this.options.template) {
        templatePromise = $q.when(this.options.template);
      } else if (this.options.templateUrl) {
        templatePromise = $http.get(this.options.templateUrl, {cache:$templateCache})
        .then(function(response) { return response.data; });
      }

      angular.forEach(this.options.resolve || [], function(value, key) {
        keys.push(key);
        values.push(angular.isString(value) ? $injector.get(value) : $injector.invoke(value));
      });

      keys.push('$template');
      values.push(templatePromise);

      return $q.all(values).then(function(values) {
        var locals = {};
        angular.forEach(values, function(value, index) {
          locals[keys[index]] = value;
        });
        locals.dialog = self;
        return locals;
      });
    };

    // The actual `$dialog` service that is injected in controllers.
    return {
      // Creates a new `Dialog` with the specified options.
      dialog: function(opts){
        return new Dialog(opts);
      },
      // creates a new `Dialog` tied to the default message box template and controller.
      //
      // Arguments `title` and `message` are rendered in the modal header and body sections respectively.
      // The `buttons` array holds an object with the following members for each button to include in the
      // modal footer section:
      //
      // * `result`: the result to pass to the `close` method of the dialog when the button is clicked
      // * `label`: the label of the button
      // * `cssClass`: additional css class(es) to apply to the button for styling
      messageBox: function(title, message, buttons){
        return new Dialog({templateUrl: 'template/dialog/message.html', controller: 'MessageBoxController', resolve:
          {model: function() {
            return {
              title: title,
              message: message,
              buttons: buttons
            };
          }
        }});
      }
    };
  }];
});


angular.module('ui.bootstrap.transition', [])

/**
 * $transition service provides a consistent interface to trigger CSS 3 transitions and to be informed when they complete.
 * @param  {DOMElement} element  The DOMElement that will be animated.
 * @param  {string|object|function} trigger  The thing that will cause the transition to start:
 *   - As a string, it represents the css class to be added to the element.
 *   - As an object, it represents a hash of style attributes to be applied to the element.
 *   - As a function, it represents a function to be called that will cause the transition to occur.
 * @return {Promise}  A promise that is resolved when the transition finishes.
 */
.factory('$transition', ['$q', '$timeout', '$rootScope', function($q, $timeout, $rootScope) {

  var $transition = function(element, trigger, options) {
    options = options || {};
    var deferred = $q.defer();
    var endEventName = $transition[options.animation ? "animationEndEventName" : "transitionEndEventName"];

    var transitionEndHandler = function(event) {
      $rootScope.$apply(function() {
        element.unbind(endEventName, transitionEndHandler);
        deferred.resolve(element);
      });
    };

    if (endEventName) {
      element.bind(endEventName, transitionEndHandler);
    }

    // Wrap in a timeout to allow the browser time to update the DOM before the transition is to occur
    $timeout(function() {
      if ( angular.isString(trigger) ) {
        element.addClass(trigger);
      } else if ( angular.isFunction(trigger) ) {
        trigger(element);
      } else if ( angular.isObject(trigger) ) {
        element.css(trigger);
      }
      //If browser does not support transitions, instantly resolve
      if ( !endEventName ) {
        deferred.resolve(element);
      }
    });

    // Add our custom cancel function to the promise that is returned
    // We can call this if we are about to run a new transition, which we know will prevent this transition from ending,
    // i.e. it will therefore never raise a transitionEnd event for that transition
    deferred.promise.cancel = function() {
      if ( endEventName ) {
        element.unbind(endEventName, transitionEndHandler);
      }
      deferred.reject('Transition cancelled');
    };

    return deferred.promise;
  };

  // Work out the name of the transitionEnd event
  var transElement = document.createElement('trans');
  var transitionEndEventNames = {
    'WebkitTransition': 'webkitTransitionEnd',
    'MozTransition': 'transitionend',
    'OTransition': 'oTransitionEnd',
    'msTransition': 'MSTransitionEnd',
    'transition': 'transitionend'
  };
  var animationEndEventNames = {
    'WebkitTransition': 'webkitAnimationEnd',
    'MozTransition': 'animationend',
    'OTransition': 'oAnimationEnd',
    'msTransition': 'MSAnimationEnd',
    'transition': 'animationend'
  };
  function findEndEventName(endEventNames) {
    for (var name in endEventNames){
      if (transElement.style[name] !== undefined) {
        return endEventNames[name];
      }
    }
  }
  $transition.transitionEndEventName = findEndEventName(transitionEndEventNames);
  $transition.animationEndEventName = findEndEventName(animationEndEventNames);
  return $transition;
}]);