define(['edx-ui-toolkit/js/utils/spec-helpers/ajax-helpers', 'js/ccx/schedule'],
    function(AjaxHelpers) {
        describe('edx.ccx.schedule.ScheduleView', function() {
            var view = null;
            var data;

            beforeEach(function() {
                loadFixtures('js/fixtures/ccx/schedule.html');

                var scheduleFixture = readFixtures('templates/ccx/schedule.underscore');
                appendSetFixtures(
                    '<script id="schedule_template" type="text/template" >' + scheduleFixture + '</script>'
                );
                schedule_template = _.template($('#schedule_template').html());
                save_url = 'save_ccx';

                $.fn.leanModal = function(param) {
                    return true;
                };

                data = [{
                    category: 'chapter',
                    display_name: 'Introduction',
                    due: null,
                    start: null,
                    location: 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b',
                    hidden: true,
                    children: [
                        {
                            category: 'sequential',
                            display_name: 'Demo Course Overview',
                            due: null,
                            start: null,
                            location: 'i4x://edX/DemoX/sequential/edx_introduction',
                            hidden: true,
                            children: [
                                {
                                    category: 'vertical',
                                    display_name: 'Introduction: Video and Sequences',
                                    due: null,
                                    start: null,
                                    location: 'i4x://edX/DemoX/vertical/vertical_0270f6de40fc',
                                    hidden: true
                                }
                            ]
                        }
                    ]
                }];
                view = new edx.ccx.schedule.ScheduleView({el: $('#new-ccx-schedule')});
                view.schedule_collection.set(data);
                view.render();
            });

            it('verifies correct view setup', function() {
                expect(view.dirty).toBe(false);
                expect(view.showing).toEqual([]);
                expect(view.hidden).toEqual(data);
                expect(view.schedule).toEqual(data);
            });

            it('finds a unit', function() {
                var unit = view.find_unit(view.schedule, 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b');
                expect(unit).toEqual(data[0]);
            });

            it('hides a unit', function() {
                var unit = view.find_unit(view.schedule, 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b');
                unit.hidden = false;
                view.hide(unit);
                expect(unit.hidden).toBe(true);
            });

            it('shows a unit', function() {
                var unit = view.find_unit(view.schedule, 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b');
                view.show(unit);
                expect(unit.hidden).toBe(false);
            });

            it('applies function to schedule nodes', function() {
                var unit = view.find_unit(view.schedule, 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b');
                expect(unit.hidden).toBe(true);
                view.schedule_apply(view.schedule, view.show);
                expect(unit.hidden).toBe(false);
            });

            it('adds all units to schedule', function() {
                expect(view.showing).toEqual([]);
                expect(view.hidden.length).toEqual(1);
                $('#add-all').click();
                expect(view.showing.length).toEqual(1);
                expect(view.hidden).toEqual([]);
            });

            it('selects a chapter and adds units to dropdown', function() {
                expect(view.sequential_select.children('option').length).toEqual(0);
                view.chapter_select.change();
                expect(view.sequential_select.prop('disabled')).toEqual(true);
                var val = 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b';
                view.chapter_select.val(val);
                view.chapter_select.change();
                expect(view.chapter_select.val()).toEqual(val);
                expect(view.sequential_select.prop('disabled')).toEqual(false);
                expect(view.sequential_select.children('option').length).toEqual(2);
            });

            it('selects a unit and adds sections to dropdown', function() {
                var val = 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b';
                view.chapter_select.val(val);
                view.chapter_select.change();
                expect(view.vertical_select.children('option').length).toEqual(0);
                view.sequential_select.change();
                expect(view.vertical_select.prop('disabled')).toEqual(true);
                val = 'i4x://edX/DemoX/sequential/edx_introduction';
                view.sequential_select.val(val);
                view.sequential_select.change();
                expect(view.sequential_select.val()).toEqual(val);
                expect(view.vertical_select.prop('disabled')).toEqual(false);
                expect(view.vertical_select.children('option').length).toEqual(2);
            });

            it('selects a section', function() {
                var val = 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b';
                view.chapter_select.val(val);
                view.chapter_select.change();
                val = 'i4x://edX/DemoX/sequential/edx_introduction';
                view.sequential_select.val(val);
                view.sequential_select.change();
                val = 'i4x://edX/DemoX/vertical/vertical_0270f6de40fc';
                view.vertical_select.val(val);
                view.vertical_select.change();
                expect(view.vertical_select.val()).toEqual(val);
            });

            it('adds a unit', function() {
                var val = 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b';
                view.chapter_select.val(val);
                view.chapter_select.change();
                val = 'i4x://edX/DemoX/sequential/edx_introduction';
                view.sequential_select.val(val);
                view.sequential_select.change();
                val = 'i4x://edX/DemoX/vertical/vertical_0270f6de40fc',
                view.vertical_select.val(val);
                view.vertical_select.change();
                var unit = view.find_unit(view.schedule, 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b');
                view.set_datetime('start', '2015-12-12 10:00');
                view.set_datetime('due', '2015-12-12 10:30');
                expect(unit.hidden).toBe(true);
                $('#add-unit-button').click();
                expect(unit.hidden).toBe(false);
            });

            it('add unit when start date is greater the due date', function() {
                var val = 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b';
                view.chapter_select.val(val);
                view.chapter_select.change();
                val = 'i4x://edX/DemoX/sequential/edx_introduction';
                view.sequential_select.val(val);
                view.sequential_select.change();
                val = 'i4x://edX/DemoX/vertical/vertical_0270f6de40fc';
                view.vertical_select.val(val);
                view.vertical_select.change();
                var unit = view.find_unit(view.schedule, 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b');
                // start date is before due date
                view.set_datetime('start', '2015-11-13 10:45');
                view.set_datetime('due', '2015-11-12 10:00');
                expect(unit.hidden).toBe(true);
                $('#add-unit-button').click();
                // Assert unit is not added to schedule
                expect(unit.hidden).toBe(true);
            });

            it('add unit when start date is missing', function() {
                var val = 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b';
                view.chapter_select.val(val);
                view.chapter_select.change();
                val = 'i4x://edX/DemoX/sequential/edx_introduction';
                view.sequential_select.val(val);
                view.sequential_select.change();
                val = 'i4x://edX/DemoX/vertical/vertical_0270f6de40fc';
                view.vertical_select.val(val);
                view.vertical_select.change();
                var unit = view.find_unit(view.schedule, 'i4x://edX/DemoX/chapter/d8a6192ade314473a78242dfeedfbf5b');
                // start date is missing
                view.set_datetime('start', null);
                view.set_datetime('due', '2015-12-12 10:00');
                expect(unit.hidden).toBe(true);
                $('#add-unit-button').click();
                // Assert unit is not added to schedule
                expect(unit.hidden).toBe(true);
            });

            it('gets a datetime string from date and time fields', function() {
                view.set_datetime('start', '2015-12-12 10:45');
                expect($('form#add-unit input[name=start_date]')).toHaveValue('2015-12-12');
                expect($('form#add-unit input[name=start_time]')).toHaveValue('10:45');
            });

            it('sets date and time fields from datetime string', function() {
                $('form#add-unit input[name=start_date]').val('2015-12-12');
                $('form#add-unit input[name=start_time]').val('10:45');
                var datetime = view.get_datetime('start');
                expect(datetime).toBe('2015-12-12 10:45');
            });

            it('saves schedule changes', function() {
                requests = AjaxHelpers.requests(this);
                view.save();
                expect(requests.length).toEqual(1);
                AjaxHelpers.expectJsonRequest(requests, 'POST', 'save_ccx', view.schedule);
                expect($('#dirty-schedule #save-changes').text()).toEqual('Saving');
                AjaxHelpers.respondWithJson(requests, {
                    data: view.schedule
                });
                expect($('#dirty-schedule #save-changes').text()).toEqual('Save changes');
                expect($('#ajax-error')).toHaveCss({display: 'none'});
            });

            it('displays an error if the sync fails', function() {
                requests = AjaxHelpers.requests(this);
                view.save();
                requests[0].respond(500);
                expect($('#ajax-error')).toHaveCss({display: 'block'});
            });
        });
    }
);