define(['backbone', 'jquery', 'underscore', 'js/common_helpers/ajax_helpers', 'js/common_helpers/template_helpers',
        'js/spec/views/fields_helpers',
        'js/spec/student_account/helpers',
        'js/spec/student_account/account_settings_fields_helpers',
        'js/student_account/views/account_settings_factory',
        'js/student_account/views/account_settings_view'
        ],
    function (Backbone, $, _, AjaxHelpers, TemplateHelpers, FieldViewsSpecHelpers, Helpers,
              AccountSettingsFieldViewSpecHelpers, AccountSettingsPage) {
        'use strict';

        describe("edx.user.AccountSettingsFactory", function () {

            var FIELDS_DATA = {
                'country': {
                    'options': Helpers.FIELD_OPTIONS
                }, 'gender': {
                    'options': Helpers.FIELD_OPTIONS
                }, 'language': {
                    'options': Helpers.FIELD_OPTIONS
                }, 'level_of_education': {
                    'options': Helpers.FIELD_OPTIONS
                }, 'password': {
                    'url': '/password_reset'
                }, 'year_of_birth': {
                    'options': Helpers.FIELD_OPTIONS
                }, 'preferred_language': {
                    'options': Helpers.FIELD_OPTIONS
                }
            };

            var AUTH_DATA = {
                'providers': [
                    {
                        'name': "Network1",
                        'connected': true,
                        'connect_url': 'yetanother1.com/auth/connect',
                        'disconnect_url': 'yetanother1.com/auth/disconnect'
                    },
                    {
                        'name': "Network2",
                        'connected': true,
                        'connect_url': 'yetanother2.com/auth/connect',
                        'disconnect_url': 'yetanother2.com/auth/disconnect'
                    }
                ]
            };

            var createAccountSettingsPage = function() {
                var context = AccountSettingsPage(
                    FIELDS_DATA, AUTH_DATA, Helpers.USER_ACCOUNTS_API_URL, Helpers.USER_PREFERENCES_API_URL, 'edX'
                );
                return context.accountSettingsView;
            };

            var requests;

            beforeEach(function () {
                setFixtures('<div class="wrapper-account-settings"></div>');
                TemplateHelpers.installTemplate('templates/fields/field_readonly');
                TemplateHelpers.installTemplate('templates/fields/field_dropdown');
                TemplateHelpers.installTemplate('templates/fields/field_link');
                TemplateHelpers.installTemplate('templates/fields/field_text');
                TemplateHelpers.installTemplate('templates/student_account/account_settings');
            });

            it("shows loading error when UserAccountModel fails to load", function() {

                requests = AjaxHelpers.requests(this);

                var accountSettingsView = createAccountSettingsPage();

                Helpers.expectLoadingIndicatorIsVisible(accountSettingsView, true);
                Helpers.expectLoadingErrorIsVisible(accountSettingsView, false);
                Helpers.expectSettingsSectionsButNotFieldsToBeRendered(accountSettingsView);

                var request = requests[0];
                expect(request.method).toBe('GET');
                expect(request.url).toBe(Helpers.USER_ACCOUNTS_API_URL);

                AjaxHelpers.respondWithError(requests, 500);
                Helpers.expectLoadingIndicatorIsVisible(accountSettingsView, false);
                Helpers.expectLoadingErrorIsVisible(accountSettingsView, true);
                Helpers.expectSettingsSectionsButNotFieldsToBeRendered(accountSettingsView);
            });


            it("shows loading error when UserPreferencesModel fails to load", function() {

                requests = AjaxHelpers.requests(this);

                var accountSettingsView = createAccountSettingsPage();

                Helpers.expectLoadingIndicatorIsVisible(accountSettingsView, true);
                Helpers.expectLoadingErrorIsVisible(accountSettingsView, false);
                Helpers.expectSettingsSectionsButNotFieldsToBeRendered(accountSettingsView);

                var request = requests[0];
                expect(request.method).toBe('GET');
                expect(request.url).toBe(Helpers.USER_ACCOUNTS_API_URL);

                AjaxHelpers.respondWithJson(requests, Helpers.createAccountSettingsData());
                Helpers.expectLoadingIndicatorIsVisible(accountSettingsView, true);
                Helpers.expectLoadingErrorIsVisible(accountSettingsView, false);
                Helpers.expectSettingsSectionsButNotFieldsToBeRendered(accountSettingsView);

                request = requests[1];
                expect(request.method).toBe('GET');
                expect(request.url).toBe(Helpers.USER_PREFERENCES_API_URL);

                AjaxHelpers.respondWithError(requests, 500);
                Helpers.expectLoadingIndicatorIsVisible(accountSettingsView, false);
                Helpers.expectLoadingErrorIsVisible(accountSettingsView, true);
                Helpers.expectSettingsSectionsButNotFieldsToBeRendered(accountSettingsView);
            });

            it("renders fields after the models are successfully fetched", function() {

                requests = AjaxHelpers.requests(this);

                var accountSettingsView = createAccountSettingsPage();

                Helpers.expectLoadingIndicatorIsVisible(accountSettingsView, true);
                Helpers.expectLoadingErrorIsVisible(accountSettingsView, false);
                Helpers.expectSettingsSectionsButNotFieldsToBeRendered(accountSettingsView);

                AjaxHelpers.respondWithJson(requests, Helpers.createAccountSettingsData());
                AjaxHelpers.respondWithJson(requests, Helpers.createUserPreferencesData());

                Helpers.expectLoadingIndicatorIsVisible(accountSettingsView, false);
                Helpers.expectLoadingErrorIsVisible(accountSettingsView, false);
                Helpers.expectSettingsSectionsAndFieldsToBeRendered(accountSettingsView);
            });

            it("expects all fields to behave correctly", function () {

                requests = AjaxHelpers.requests(this);

                var accountSettingsView = createAccountSettingsPage();

                AjaxHelpers.respondWithJson(requests, Helpers.createAccountSettingsData());
                AjaxHelpers.respondWithJson(requests, Helpers.createUserPreferencesData());

                var sectionsData = accountSettingsView.options.sectionsData;

                expect(sectionsData[0].fields.length).toBe(6);

                var textFields = [sectionsData[0].fields[1], sectionsData[0].fields[2]];
                for (var i = 0; i < textFields.length ; i++) {

                    var view = textFields[i].view;
                    FieldViewsSpecHelpers.verifyTextField(view, {
                        title: view.options.title,
                        valueAttribute: view.options.valueAttribute,
                        helpMessage: view.options.helpMessage,
                        validValue: 'My Name',
                        invalidValue1: '',
                        invalidValue2: '@',
                        validationError: "Think again!",
                        defaultValue: ''
                    }, requests);
                }

                expect(sectionsData[1].fields.length).toBe(4);
                var dropdownFields = [
                    sectionsData[1].fields[0],
                    sectionsData[1].fields[1],
                    sectionsData[1].fields[2]
                ];
                _.each(dropdownFields, function(field) {
                    var view = field.view;
                    FieldViewsSpecHelpers.verifyDropDownField(view, {
                        title: view.options.title,
                        valueAttribute: view.options.valueAttribute,
                        helpMessage: '',
                        validValue: Helpers.FIELD_OPTIONS[1][0],
                        invalidValue1: Helpers.FIELD_OPTIONS[2][0],
                        invalidValue2: Helpers.FIELD_OPTIONS[3][0],
                        validationError: "Nope, this will not do!",
                        defaultValue: null
                    }, requests);
                });

                var section2Fields = sectionsData[2].fields;
                expect(section2Fields.length).toBe(2);
                for (var i = 0; i < section2Fields.length; i++) {

                    var view = section2Fields[i].view;
                    AccountSettingsFieldViewSpecHelpers.verifyAuthField(view, view.options, requests);
                }
            });
        });
    });
