"use strict";
/**
 * Created by igor.samulenko on 6/20/2014.
 */
(function () {
    'use strict';
    angular.module('myitsmApp')
        .directive('customFieldContainer', ['events', 'customFieldAreaLinkFunction', 'screenConfigurationModel',
        function (events, customFieldAreaLinkFunction, screenConfigurationModel) {
            return {
                restrict: 'E',
                replace: true,
                scope: {
                    fields: '=',
                    ticket: '=',
                    stacked: '='
                },
                templateUrl: 'views/field-customization/custom-field-area.html',
                link: function (scope) {
                    var fieldWatcherUnregister;
                    scope.editMode = true;
                    scope.fieldsCountToShow = 5;
                    if (scope.ticket.type === EntityVO.TYPE_ASSET) {
                        fieldWatcherUnregister = scope.$watch('fields', function () {
                            scope.visibleFields = scope.getFieldsListToShow();
                        });
                        scope.$on('$destroy', function () {
                            fieldWatcherUnregister();
                        });
                    }
                    customFieldAreaLinkFunction(scope);
                    scope.visibleFields = scope.getFieldsListToShow();
                    if (scope.ticket.customFields) {
                        _.forEach(scope.fields, function (field) {
                            field.value = scope.ticket.customFields[field.name];
                        });
                    }
                    /**
                     * Handle field value change event
                     * @param event
                     * @param {FieldVO} field
                     */
                    function handleFieldValueChange(event, field) {
                        setTicketFieldValue(field.name, field.getValue());
                        field.valueField && setTicketFieldValue(field.valueField, field.getLinkedValue());
                        scope.$emit(events.FIELD_FORM_IS_DIRTY);
                    }
                    scope.$watch('ticket.customFields', function (newCustomFields) {
                        if (newCustomFields && _.isObject(newCustomFields && scope.fields)) {
                            screenConfigurationModel.initFieldValues(scope.fields, scope.ticket);
                            scope.$broadcast(events.REFRESH_FIELD_VALUES);
                        }
                    });
                    scope.isEditable = function (field) {
                        return scope.ticket.accessMappings ? field.isEditable(scope.ticket.accessMappings) : !field.isReadOnly;
                    };
                    scope.$on(events.FIELD_VALUE_CHANGE, handleFieldValueChange);
                    function handleDiscardChanges() {
                        _.forEach(scope.fields, function (field) {
                            field.clearValue();
                        });
                    }
                    /**
                     * Sets ticket's field value
                     * @param {String} fieldName
                     * @param {*} value
                     */
                    function setTicketFieldValue(fieldName, value) {
                        scope.ticket.customFields[fieldName] = value;
                    }
                    scope.$on(events.DISCARD_CHANGES, handleDiscardChanges);
                }
            };
        }]);
})();