"use strict";
/**
 * Created by Abhranil Naha on 7/10/2017.
 */
(function () {
    'use strict';
    angular.module('layoutConfigModule')
        .factory('layoutConfigurationModel', ['$log', '$q', 'layoutConfigurationService', 'screenConfigurationModel',
        function ($log, $q, layoutConfigurationService, screenConfigurationModel) {
            var layoutConfigurationModel = {
                layoutsByScreenName: {}
            };
            /**
             * Public functions
             */
            layoutConfigurationModel.getLayoutFromCacheByScreenName = function (screenName) {
                return angular.copy(layoutConfigurationModel.layoutsByScreenName[screenName]);
            };
            /**
             * Can load all layouts, if no params specified or layout for specific datasource and screen name
             *
             * @param {String} datasource 	- layout datasource name
             * @param {String} screenName 	- layout screen name
             * @returns {Promise}
             */
            layoutConfigurationModel.loadLayout = function (screenName) {
                var params = {};
                if (arguments.length) {
                    params = {
                        screen: screenName
                    };
                }
                return layoutConfigurationService.loadLayout(params)
                    .then(function (layouts) {
                    (layouts || []).forEach(function (layout) {
                        if (layout.name) {
                            layoutConfigurationModel.layoutsByScreenName[layout.name] = layout;
                        }
                    });
                    return angular.copy(layouts);
                })
                    .catch(function (e) {
                    $log.error('Could not load screen configurations! ', e);
                    throw e;
                });
            };
            /**
             * Loads screen layout for specific datasource and screen name
             *
             * @param {String} screenName
             * @param {Boolean} force - whether to force request to be sent
             * @returns {*}
             */
            layoutConfigurationModel.loadScreenLayout = function (screenName, force) {
                var cachedLayout = force ? angular.noop() : layoutConfigurationModel.layoutsByScreenName[screenName], layoutPromise;
                if (cachedLayout) {
                    layoutPromise = $q.when(cachedLayout);
                }
                else {
                    layoutPromise = screenConfigurationModel.isV2CompatibleScreen(screenName) ? layoutConfigurationModel.loadLayout(screenName) : $q.when({});
                }
                return layoutPromise.then(function () {
                    return angular.copy(layoutConfigurationModel.layoutsByScreenName[screenName]);
                });
            };
            /**
             * Sends reuqest to update screen layout by its name
             *
             * @param {Object} panel
             * @returns {*}
             */
            layoutConfigurationModel.applyCustomizationChangesToScreenLayout = function (panel) {
                var layout = layoutConfigurationModel.layoutsByScreenName[panel.parentScreenName], rawLayout = layout.getRawLayout(), flatLayoutPanels = flattenLayoutPanels(rawLayout), section = _.find(flatLayoutPanels, { id: panel.id });
                section.children = panel.fields.map(function (field) {
                    return _.pick(field, ['name', 'id', 'type', 'dataType']);
                });
                section.name = panel.name;
                return layoutConfigurationModel.updateScreenLayout(rawLayout, panel.parentScreenName);
            };
            /**
             * Sends reuqest to update screen layout by its name
             *
             * @param {Object} layout -
             * @param {String} screenId
             * @returns {*}
             */
            layoutConfigurationModel.updateScreenLayout = function (screenName, layout) {
                return layoutConfigurationService.updateScreenLayout(layout, screenName);
            };
            function flattenLayoutPanels(layout) {
                return layout.panels.reduce(function (acc, item) {
                    acc.push(item);
                    if (item.panels) {
                        acc = acc.concat(flattenLayoutPanels(item));
                    }
                    return acc;
                }, []);
            }
            return layoutConfigurationModel;
        }]);
})();