/**
 * Provides helper methods for invoking Studio editors in Jasmine tests.
 */
define(['jquery', 'underscore', 'edx-ui-toolkit/js/utils/spec-helpers/ajax-helpers',
        'common/js/spec_helpers/template_helpers', 'js/spec_helpers/modal_helpers', 'js/views/modals/edit_xblock',
        'js/collections/component_template', 'xmodule', 'cms/js/main', 'xblock/cms.runtime.v1'],
    function($, _, AjaxHelpers, TemplateHelpers, modal_helpers, EditXBlockModal, ComponentTemplates) {
        var installMockXBlock, uninstallMockXBlock, installMockXModule, uninstallMockXModule,
            mockComponentTemplates, installEditTemplates, showEditModal, verifyXBlockRequest;

        installMockXBlock = function(mockResult) {
            window.MockXBlock = function(runtime, element) {
                var block = {
                    runtime: runtime
                };
                if (mockResult) {
                    block.save = function() {
                        return mockResult;
                    };
                }
                return block;
            };
        };

        uninstallMockXBlock = function() {
            window.MockXBlock = null;
        };

        installMockXModule = function(mockResult) {
            window.MockDescriptor = _.extend(XModule.Descriptor, {
                save: function() {
                    return mockResult;
                }
            });
        };

        uninstallMockXModule = function() {
            window.MockDescriptor = null;
        };

        mockComponentTemplates = new ComponentTemplates([
            {
                'templates': [
                    {
                        'category': 'discussion',
                        'display_name': 'Discussion'
                    }],
                'type': 'discussion',
                'support_legend': {'show_legend': false}
            }, {
                'templates': [
                    {
                        'category': 'html',
                        'boilerplate_name': null,
                        'display_name': 'Text'
                    }, {
                        'category': 'html',
                        'boilerplate_name': 'announcement.yaml',
                        'display_name': 'Announcement'
                    }, {
                        'category': 'html',
                        'boilerplate_name': 'raw.yaml',
                        'display_name': 'Raw HTML'
                    }],
                'type': 'html',
                'support_legend': {'show_legend': false}
            }],
            {
                parse: true
            });

        installEditTemplates = function(append) {
            modal_helpers.installModalTemplates(append);

            // Add templates needed by the add XBlock menu
            TemplateHelpers.installTemplate('add-xblock-component');
            TemplateHelpers.installTemplate('add-xblock-component-button');
            TemplateHelpers.installTemplate('add-xblock-component-menu');
            TemplateHelpers.installTemplate('add-xblock-component-menu-problem');
            TemplateHelpers.installTemplate('add-xblock-component-support-legend');
            TemplateHelpers.installTemplate('add-xblock-component-support-level');

            // Add templates needed by the edit XBlock modal
            TemplateHelpers.installTemplate('edit-xblock-modal');
            TemplateHelpers.installTemplate('editor-mode-button');

            // Add templates needed by the settings editor
            TemplateHelpers.installTemplate('metadata-editor');
            TemplateHelpers.installTemplate('metadata-number-entry', false, 'metadata-number-entry');
            TemplateHelpers.installTemplate('metadata-string-entry', false, 'metadata-string-entry');
        };

        showEditModal = function(requests, xblockElement, model, mockHtml, options) {
            var modal = new EditXBlockModal({});
            modal.edit(xblockElement, model, options);
            AjaxHelpers.respondWithJson(requests, {
                html: mockHtml,
                'resources': []
            });
            return modal;
        };

        verifyXBlockRequest = function(requests, expectedJson) {
            var request = AjaxHelpers.currentRequest(requests),
                actualJson = JSON.parse(request.requestBody);
            expect(request.url).toEqual('/xblock/');
            expect(request.method).toEqual('POST');
            expect(actualJson).toEqual(expectedJson);
        };

        return $.extend(modal_helpers, {
            'installMockXBlock': installMockXBlock,
            'uninstallMockXBlock': uninstallMockXBlock,
            'installMockXModule': installMockXModule,
            'uninstallMockXModule': uninstallMockXModule,
            'mockComponentTemplates': mockComponentTemplates,
            'installEditTemplates': installEditTemplates,
            'showEditModal': showEditModal,
            'verifyXBlockRequest': verifyXBlockRequest
        });
    });