'use strict';

describe("widget", function() {
  beforeEach(inject(function($provide){
    $provide.factory('$xhrCache', ['$xhr.cache', identity]);
  }));

  describe('ng:switch', inject(function($rootScope, $compile) {
    it('should switch on value change', inject(function($rootScope, $compile) {
      var element = $compile(
        '<ng:switch on="select">' +
          '<div ng:switch-when="1">first:{{name}}</div>' +
          '<div ng:switch-when="2">second:{{name}}</div>' +
          '<div ng:switch-when="true">true:{{name}}</div>' +
        '</ng:switch>')($rootScope);
      expect(element.html()).toEqual('');
      $rootScope.select = 1;
      $rootScope.$apply();
      expect(element.text()).toEqual('first:');
      $rootScope.name="shyam";
      $rootScope.$apply();
      expect(element.text()).toEqual('first:shyam');
      $rootScope.select = 2;
      $rootScope.$apply();
      expect(element.text()).toEqual('second:shyam');
      $rootScope.name = 'misko';
      $rootScope.$apply();
      expect(element.text()).toEqual('second:misko');
      $rootScope.select = true;
      $rootScope.$apply();
      expect(element.text()).toEqual('true:misko');
    }));
    

    it('should switch on switch-when-default', inject(function($rootScope, $compile) {
      var element = $compile(
        '<ng:switch on="select">' +
          '<div ng:switch-when="1">one</div>' +
          '<div ng:switch-default>other</div>' +
        '</ng:switch>')($rootScope);
      $rootScope.$apply();
      expect(element.text()).toEqual('other');
      $rootScope.select = 1;
      $rootScope.$apply();
      expect(element.text()).toEqual('one');
    }));

    
    it('should call change on switch', inject(function($rootScope, $compile) {
      var element = $compile(
        '<ng:switch on="url" change="name=\'works\'">' +
          '<div ng:switch-when="a">{{name}}</div>' +
        '</ng:switch>')($rootScope);
      $rootScope.url = 'a';
      $rootScope.$apply();
      expect($rootScope.name).toEqual(undefined);
      expect(element.text()).toEqual('works');
    }));
  }));


  describe('ng:include', inject(function($rootScope, $compile) {
    it('should include on external file', inject(function($rootScope, $compile, $xhrCache) {
      var element = jqLite('<ng:include src="url" scope="childScope"></ng:include>');
      var element = $compile(element)($rootScope);
      $rootScope.childScope = $rootScope.$new();
      $rootScope.childScope.name = 'misko';
      $rootScope.url = 'myUrl';
      $xhrCache.data.myUrl = {value:'{{name}}'};
      $rootScope.$digest();
      expect(element.text()).toEqual('misko');
    }));

    
    it('should remove previously included text if a falsy value is bound to src',
        inject(function($rootScope, $compile, $xhrCache) {
      var element = jqLite('<ng:include src="url" scope="childScope"></ng:include>');
      var element = $compile(element)($rootScope);
      $rootScope.childScope = $rootScope.$new();
      $rootScope.childScope.name = 'igor';
      $rootScope.url = 'myUrl';
      $xhrCache.data.myUrl = {value:'{{name}}'};
      $rootScope.$digest();

      expect(element.text()).toEqual('igor');

      $rootScope.url = undefined;
      $rootScope.$digest();

      expect(element.text()).toEqual('');
    }));

    
    it('should allow this for scope', inject(function($rootScope, $compile, $xhrCache) {
      var element = jqLite('<ng:include src="url" scope="this"></ng:include>');
      var element = $compile(element)($rootScope);
      $rootScope.url = 'myUrl';
      $xhrCache.data.myUrl = {value:'{{"abc"}}'};
      $rootScope.$digest();
      // TODO(misko): because we are using scope==this, the eval gets registered
      // during the flush phase and hence does not get called.
      // I don't think passing 'this' makes sense. Does having scope on ng:include makes sense?
      // should we make scope="this" illegal?
      $rootScope.$digest();

      expect(element.text()).toEqual('abc');
    }));

    
    it('should evaluate onload expression when a partial is loaded',
        inject(function($rootScope, $compile, $xhrCache) {
      var element = jqLite('<ng:include src="url" onload="loaded = true"></ng:include>');
      var element = $compile(element)($rootScope);

      expect($rootScope.loaded).not.toBeDefined();

      $rootScope.url = 'myUrl';
      $xhrCache.data.myUrl = {value:'my partial'};
      $rootScope.$digest();
      expect(element.text()).toEqual('my partial');
      expect($rootScope.loaded).toBe(true);
    }));

    
    it('should destroy old scope', inject(function($rootScope, $compile, $xhrCache) {
      var element = jqLite('<ng:include src="url"></ng:include>');
      var element = $compile(element)($rootScope);

      expect($rootScope.$$childHead).toBeFalsy();

      $rootScope.url = 'myUrl';
      $xhrCache.data.myUrl = {value:'my partial'};
      $rootScope.$digest();
      expect($rootScope.$$childHead).toBeTruthy();

      $rootScope.url = null;
      $rootScope.$digest();
      expect($rootScope.$$childHead).toBeFalsy();
    }));
  }));


  describe('a', inject(function($rootScope, $compile) {
    it('should prevent default action to be executed when href is empty',
        inject(function($rootScope, $compile) {
      var orgLocation = document.location.href,
          preventDefaultCalled = false,
          event;

      var element = $compile('<a href="">empty link</a>')($rootScope);

      if (msie < 9) {

        event = document.createEventObject();
        expect(event.returnValue).not.toBeDefined();
        element[0].fireEvent('onclick', event);
        expect(event.returnValue).toEqual(false);

      } else {

        event = document.createEvent('MouseEvent');
        event.initMouseEvent(
          'click', true, true, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null);

        event.preventDefaultOrg = event.preventDefault;
        event.preventDefault = function() {
          preventDefaultCalled = true;
          if (this.preventDefaultOrg) this.preventDefaultOrg();
        };

        element[0].dispatchEvent(event);

        expect(preventDefaultCalled).toEqual(true);
      }

      expect(document.location.href).toEqual(orgLocation);
    }));
  }));


  describe('@ng:repeat', inject(function($rootScope, $compile) {
    it('should ng:repeat over array', inject(function($rootScope, $compile) {
      var element = $compile(
        '<ul>' +
          '<li ng:repeat="item in items" ng:init="suffix = \';\'" ng:bind="item + suffix"></li>' +
        '</ul>')($rootScope);

      Array.prototype.extraProperty = "should be ignored";
      // INIT
      $rootScope.items = ['misko', 'shyam'];
      $rootScope.$digest();
      expect(element.find('li').length).toEqual(2);
      expect(element.text()).toEqual('misko;shyam;');
      delete Array.prototype.extraProperty;

      // GROW
      $rootScope.items = ['adam', 'kai', 'brad'];
      $rootScope.$digest();
      expect(element.find('li').length).toEqual(3);
      expect(element.text()).toEqual('adam;kai;brad;');

      // SHRINK
      $rootScope.items = ['brad'];
      $rootScope.$digest();
      expect(element.find('li').length).toEqual(1);
      expect(element.text()).toEqual('brad;');
    }));

    it('should ng:repeat over object', inject(function($rootScope, $compile) {
      var element = $compile(
        '<ul>' +
          '<li ng:repeat="(key, value) in items" ng:bind="key + \':\' + value + \';\' "></li>' +
        '</ul>')($rootScope);
      $rootScope.items = {misko:'swe', shyam:'set'};
      $rootScope.$digest();
      expect(element.text()).toEqual('misko:swe;shyam:set;');
    }));

    it('should not ng:repeat over parent properties', inject(function($rootScope, $compile) {
      var Class = function() {};
      Class.prototype.abc = function() {};
      Class.prototype.value = 'abc';

      var element = $compile(
        '<ul>' +
          '<li ng:repeat="(key, value) in items" ng:bind="key + \':\' + value + \';\' "></li>' +
        '</ul>')($rootScope);
      $rootScope.items = new Class();
      $rootScope.items.name = 'value';
      $rootScope.$digest();
      expect(element.text()).toEqual('name:value;');
    }));

    it('should error on wrong parsing of ng:repeat', inject(function($rootScope, $compile, $log) {
      expect(function() {
        var element = $compile('<ul><li ng:repeat="i dont parse"></li></ul>')($rootScope);
      }).toThrow("Expected ng:repeat in form of '_item_ in _collection_' but got 'i dont parse'.");

      $log.error.logs.shift();
    }));

    it('should expose iterator offset as $index when iterating over arrays',
        inject(function($rootScope, $compile) {
      var element = $compile(
        '<ul>' +
          '<li ng:repeat="item in items" ng:bind="item + $index + \'|\'"></li>' +
        '</ul>')($rootScope);
      $rootScope.items = ['misko', 'shyam', 'frodo'];
      $rootScope.$digest();
      expect(element.text()).toEqual('misko0|shyam1|frodo2|');
    }));

    it('should expose iterator offset as $index when iterating over objects',
        inject(function($rootScope, $compile) {
      var element = $compile(
        '<ul>' +
          '<li ng:repeat="(key, val) in items" ng:bind="key + \':\' + val + $index + \'|\'"></li>' +
        '</ul>')($rootScope);
      $rootScope.items = {'misko':'m', 'shyam':'s', 'frodo':'f'};
      $rootScope.$digest();
      expect(element.text()).toEqual('frodo:f0|misko:m1|shyam:s2|');
    }));

    it('should expose iterator position as $position when iterating over arrays',
        inject(function($rootScope, $compile) {
      var element = $compile(
        '<ul>' +
          '<li ng:repeat="item in items" ng:bind="item + \':\' + $position + \'|\'"></li>' +
        '</ul>')($rootScope);
      $rootScope.items = ['misko', 'shyam', 'doug'];
      $rootScope.$digest();
      expect(element.text()).toEqual('misko:first|shyam:middle|doug:last|');

      $rootScope.items.push('frodo');
      $rootScope.$digest();
      expect(element.text()).toEqual('misko:first|shyam:middle|doug:middle|frodo:last|');

      $rootScope.items.pop();
      $rootScope.items.pop();
      $rootScope.$digest();
      expect(element.text()).toEqual('misko:first|shyam:last|');
    }));

    it('should expose iterator position as $position when iterating over objects',
        inject(function($rootScope, $compile) {
      var element = $compile(
        '<ul>' +
          '<li ng:repeat="(key, val) in items" ng:bind="key + \':\' + val + \':\' + $position + \'|\'">' +
          '</li>' +
        '</ul>')($rootScope);
      $rootScope.items = {'misko':'m', 'shyam':'s', 'doug':'d', 'frodo':'f'};
      $rootScope.$digest();
      expect(element.text()).toEqual('doug:d:first|frodo:f:middle|misko:m:middle|shyam:s:last|');

      delete $rootScope.items.doug;
      delete $rootScope.items.frodo;
      $rootScope.$digest();
      expect(element.text()).toEqual('misko:m:first|shyam:s:last|');
    }));

    it('should ignore $ and $$ properties', inject(function($rootScope, $compile) {
      var element = $compile('<ul><li ng:repeat="i in items">{{i}}|</li></ul>')($rootScope);
      $rootScope.items = ['a', 'b', 'c'];
      $rootScope.items.$$hashkey = 'xxx';
      $rootScope.items.$root = 'yyy';
      $rootScope.$digest();

      expect(element.text()).toEqual('a|b|c|');
    }));

    it('should repeat over nested arrays', inject(function($rootScope, $compile) {
      var element = $compile(
        '<ul>' +
          '<li ng:repeat="subgroup in groups">' +
            '<div ng:repeat="group in subgroup">{{group}}|</div>X' +
          '</li>' +
        '</ul>')($rootScope);
      $rootScope.groups = [['a', 'b'], ['c','d']];
      $rootScope.$digest();

      expect(element.text()).toEqual('a|b|Xc|d|X');
    }));

    it('should ignore non-array element properties when iterating over an array',
        inject(function($rootScope, $compile) {
      var element = $compile('<ul><li ng:repeat="item in array">{{item}}|</li></ul>')($rootScope);
      $rootScope.array = ['a', 'b', 'c'];
      $rootScope.array.foo = '23';
      $rootScope.array.bar = function() {};
      $rootScope.$digest();

      expect(element.text()).toBe('a|b|c|');
    }));

    it('should iterate over non-existent elements of a sparse array',
        inject(function($rootScope, $compile) {
      var element = $compile('<ul><li ng:repeat="item in array">{{item}}|</li></ul>')($rootScope);
      $rootScope.array = ['a', 'b'];
      $rootScope.array[4] = 'c';
      $rootScope.array[6] = 'd';
      $rootScope.$digest();

      expect(element.text()).toBe('a|b|||c||d|');
    }));


    describe('stability', function() {
      var a, b, c, d, lis, element;

      beforeEach(inject(function($rootScope, $compile) {
        element = $compile(
          '<ul>' +
            '<li ng:repeat="item in items" ng:bind="key + \':\' + val + \':\' + $position + \'|\'"></li>' +
          '</ul>')($rootScope);
        a = {};
        b = {};
        c = {};
        d = {};

        $rootScope.items = [a, b, c];
        $rootScope.$digest();
        lis = element.find('li');
      }));

      it('should preserve the order of elements', inject(function($rootScope, $compile) {
        $rootScope.items = [a, c, d];
        $rootScope.$digest();
        var newElements = element.find('li');
        expect(newElements[0]).toEqual(lis[0]);
        expect(newElements[1]).toEqual(lis[2]);
        expect(newElements[2]).not.toEqual(lis[1]);
      }));

      it('should support duplicates', inject(function($rootScope, $compile) {
        $rootScope.items = [a, a, b, c];
        $rootScope.$digest();
        var newElements = element.find('li');
        expect(newElements[0]).toEqual(lis[0]);
        expect(newElements[1]).not.toEqual(lis[0]);
        expect(newElements[2]).toEqual(lis[1]);
        expect(newElements[3]).toEqual(lis[2]);

        lis = newElements;
        $rootScope.$digest();
        newElements = element.find('li');
        expect(newElements[0]).toEqual(lis[0]);
        expect(newElements[1]).toEqual(lis[1]);
        expect(newElements[2]).toEqual(lis[2]);
        expect(newElements[3]).toEqual(lis[3]);

        $rootScope.$digest();
        newElements = element.find('li');
        expect(newElements[0]).toEqual(lis[0]);
        expect(newElements[1]).toEqual(lis[1]);
        expect(newElements[2]).toEqual(lis[2]);
        expect(newElements[3]).toEqual(lis[3]);
      }));

      it('should remove last item when one duplicate instance is removed',
          inject(function($rootScope, $compile) {
        $rootScope.items = [a, a, a];
        $rootScope.$digest();
        lis = element.find('li');

        $rootScope.items = [a, a];
        $rootScope.$digest();
        var newElements = element.find('li');
        expect(newElements.length).toEqual(2);
        expect(newElements[0]).toEqual(lis[0]);
        expect(newElements[1]).toEqual(lis[1]);
      }));

      it('should reverse items when the collection is reversed',
          inject(function($rootScope, $compile) {
        $rootScope.items = [a, b, c];
        $rootScope.$digest();
        lis = element.find('li');

        $rootScope.items = [c, b, a];
        $rootScope.$digest();
        var newElements = element.find('li');
        expect(newElements.length).toEqual(3);
        expect(newElements[0]).toEqual(lis[2]);
        expect(newElements[1]).toEqual(lis[1]);
        expect(newElements[2]).toEqual(lis[0]);
      }));
    });
  }));


  describe('@ng:non-bindable', function() {
    it('should prevent compilation of the owning element and its children',
        inject(function($rootScope, $compile) {
      var element = $compile('<div ng:non-bindable><span ng:bind="name"></span></div>')($rootScope);
      $rootScope.name =  'misko';
      $rootScope.$digest();
      expect(element.text()).toEqual('');
    }));
  });


  describe('ng:view', function() {
    var element;
    beforeEach(inject(function($rootScope, $compile) {
      element = $compile('<ng:view></ng:view>')($rootScope);
    }));


    it('should do nothing when no routes are defined',
        inject(function($rootScope, $compile, $location) {
      $location.path('/unknown');
      $rootScope.$digest();
      expect(element.text()).toEqual('');
    }));


    it('should load content via xhr when route changes',
        inject(function($rootScope, $compile, $browser, $location, $route) {
      $route.when('/foo', {template: 'myUrl1'});
      $route.when('/bar', {template: 'myUrl2'});

      expect(element.text()).toEqual('');

      $location.path('/foo');
      $browser.xhr.expectGET('myUrl1').respond('<div>{{1+3}}</div>');
      $rootScope.$digest();
      $browser.xhr.flush();
      expect(element.text()).toEqual('4');

      $location.path('/bar');
      $browser.xhr.expectGET('myUrl2').respond('angular is da best');
      $rootScope.$digest();
      $browser.xhr.flush();
      expect(element.text()).toEqual('angular is da best');
    }));

    it('should remove all content when location changes to an unknown route',
        inject(function($rootScope, $compile, $location, $browser, $route) {
      $route.when('/foo', {template: 'myUrl1'});

      $location.path('/foo');
      $browser.xhr.expectGET('myUrl1').respond('<div>{{1+3}}</div>');
      $rootScope.$digest();
      $browser.xhr.flush();
      expect(element.text()).toEqual('4');

      $location.path('/unknown');
      $rootScope.$digest();
      expect($rootScope.$element.text()).toEqual('');
    }));

    it('should chain scopes and propagate evals to the child scope',
        inject(function($rootScope, $compile, $location, $browser, $route) {
      $route.when('/foo', {template: 'myUrl1'});
      $rootScope.parentVar = 'parent';

      $location.path('/foo');
      $browser.xhr.expectGET('myUrl1').respond('<div>{{parentVar}}</div>');
      $rootScope.$digest();
      $browser.xhr.flush();
      expect(element.text()).toEqual('parent');

      $rootScope.parentVar = 'new parent';
      $rootScope.$digest();
      expect($rootScope.$element.text()).toEqual('new parent');
    }));

    it('should be possible to nest ng:view in ng:include', inject(function() {
      var injector = angular.injector('ng', 'ngMock');
      var myApp = injector('$rootScope');
      var $browser = injector('$browser');
      $browser.xhr.expectGET('includePartial.html').respond('view: <ng:view></ng:view>');
      injector('$location').path('/foo');

      var $route = injector('$route');
      $route.when('/foo', {controller: angular.noop, template: 'viewPartial.html'});

      var element = injector('$compile')(
          '<div>' +
            'include: <ng:include src="\'includePartial.html\'"> </ng:include>' +
          '</div>')(myApp);
      myApp.$apply();

      $browser.xhr.expectGET('viewPartial.html').respond('content');
      myApp.$digest();
      $browser.xhr.flush();

      expect(myApp.$element.text()).toEqual('include: view: content');
      expect($route.current.template).toEqual('viewPartial.html');
      dealoc(myApp);
    }));

    it('should initialize view template after the view controller was initialized even when ' +
       'templates were cached', inject(function($rootScope, $compile, $location, $browser, $route) {
      //this is a test for a regression that was introduced by making the ng:view cache sync

      $route.when('/foo', {controller: ParentCtrl, template: 'viewPartial.html'});

      $rootScope.log = [];

      function ParentCtrl() {
        this.log.push('parent');
      }

      $rootScope.ChildCtrl = function() {
        this.log.push('child');
      };

      $location.path('/foo');
      $browser.xhr.expectGET('viewPartial.html').
          respond('<div ng:init="log.push(\'init\')">' +
                    '<div ng:controller="ChildCtrl"></div>' +
                  '</div>');
      $rootScope.$apply();
      $browser.xhr.flush();

      expect($rootScope.log).toEqual(['parent', 'init', 'child']);

      $location.path('/');
      $rootScope.$apply();
      expect($rootScope.log).toEqual(['parent', 'init', 'child']);

      $rootScope.log = [];
      $location.path('/foo');
      $rootScope.$apply();
      $browser.defer.flush();

      expect($rootScope.log).toEqual(['parent', 'init', 'child']);
    }));

    it('should discard pending xhr callbacks if a new route is requested before the current ' +
        'finished loading', inject(function($route, $rootScope, $location, $browser) {
      // this is a test for a bad race condition that affected feedback

      $route.when('/foo', {template: 'myUrl1'});
      $route.when('/bar', {template: 'myUrl2'});

      expect($rootScope.$element.text()).toEqual('');

      $location.path('/foo');
      $browser.xhr.expectGET('myUrl1').respond('<div>{{1+3}}</div>');
      $rootScope.$digest();
      $location.path('/bar');
      $browser.xhr.expectGET('myUrl2').respond('<div>{{1+1}}</div>');
      $rootScope.$digest();
      $browser.xhr.flush(); // now that we have to requests pending, flush!

      expect($rootScope.$element.text()).toEqual('2');
    }));
  });


  describe('ng:pluralize', function() {


    describe('deal with pluralized strings without offset', function() {
       var element;
       beforeEach(inject(function($rootScope, $compile) {
          element = $compile(
            '<ng:pluralize count="email"' +
                           "when=\"{'0': 'You have no new email'," +
                                   "'one': 'You have one new email'," +
                                   "'other': 'You have {} new emails'}\">" +
            '</ng:pluralize>')($rootScope);
        }));

        it('should show single/plural strings', inject(function($rootScope, $compile) {
          $rootScope.email = 0;
          $rootScope.$digest();
          expect(element.text()).toBe('You have no new email');

          $rootScope.email = '0';
          $rootScope.$digest();
          expect(element.text()).toBe('You have no new email');

          $rootScope.email = 1;
          $rootScope.$digest();
          expect(element.text()).toBe('You have one new email');

          $rootScope.email = 0.01;
          $rootScope.$digest();
          expect(element.text()).toBe('You have 0.01 new emails');

          $rootScope.email = '0.1';
          $rootScope.$digest();
          expect(element.text()).toBe('You have 0.1 new emails');

          $rootScope.email = 2;
          $rootScope.$digest();
          expect(element.text()).toBe('You have 2 new emails');

          $rootScope.email = -0.1;
          $rootScope.$digest();
          expect(element.text()).toBe('You have -0.1 new emails');

          $rootScope.email = '-0.01';
          $rootScope.$digest();
          expect(element.text()).toBe('You have -0.01 new emails');

          $rootScope.email = -2;
          $rootScope.$digest();
          expect(element.text()).toBe('You have -2 new emails');
        }));


        it('should show single/plural strings with mal-formed inputs',
            inject(function($rootScope, $compile) {
          $rootScope.email = '';
          $rootScope.$digest();
          expect(element.text()).toBe('');

          $rootScope.email = null;
          $rootScope.$digest();
          expect(element.text()).toBe('');

          $rootScope.email = undefined;
          $rootScope.$digest();
          expect(element.text()).toBe('');

          $rootScope.email = 'a3';
          $rootScope.$digest();
          expect(element.text()).toBe('');

          $rootScope.email = '011';
          $rootScope.$digest();
          expect(element.text()).toBe('You have 11 new emails');

          $rootScope.email = '-011';
          $rootScope.$digest();
          expect(element.text()).toBe('You have -11 new emails');

          $rootScope.email = '1fff';
          $rootScope.$digest();
          expect(element.text()).toBe('You have one new email');

          $rootScope.email = '0aa22';
          $rootScope.$digest();
          expect(element.text()).toBe('You have no new email');

          $rootScope.email = '000001';
          $rootScope.$digest();
          expect(element.text()).toBe('You have one new email');
        }));
    });


    describe('deal with pluralized strings with offset', function() {
      it('should show single/plural strings with offset', inject(function($rootScope, $compile) {
        var element = $compile(
          "<ng:pluralize count=\"viewCount\"  offset=2 " +
              "when=\"{'0': 'Nobody is viewing.'," +
                      "'1': '{{p1}} is viewing.'," +
                      "'2': '{{p1}} and {{p2}} are viewing.'," +
                      "'one': '{{p1}}, {{p2}} and one other person are viewing.'," +
                      "'other': '{{p1}}, {{p2}} and {} other people are viewing.'}\">" +
          "</ng:pluralize>")($rootScope);
        $rootScope.p1 = 'Igor';
        $rootScope.p2 = 'Misko';

        $rootScope.viewCount = 0;
        $rootScope.$digest();
        expect(element.text()).toBe('Nobody is viewing.');

        $rootScope.viewCount = 1;
        $rootScope.$digest();
        expect(element.text()).toBe('Igor is viewing.');

        $rootScope.viewCount = 2;
        $rootScope.$digest();
        expect(element.text()).toBe('Igor and Misko are viewing.');

        $rootScope.viewCount = 3;
        $rootScope.$digest();
        expect(element.text()).toBe('Igor, Misko and one other person are viewing.');

        $rootScope.viewCount = 4;
        $rootScope.$digest();
        expect(element.text()).toBe('Igor, Misko and 2 other people are viewing.');
      }));
    });
  });
});