"use strict";
(function () {
    'use strict';
    angular.module('myitsmApp')
        .directive('editActivityDates', ['$rootScope', 'events', 'utilityFunctions', 'configurationModel', 'ticketModel', 'fieldValidationModel', 'editTicketDatesService',
        function ($rootScope, events, utilityFunctions, configurationModel, ticketModel, fieldValidationModel, editTicketDatesService) {
            return {
                restrict: 'E',
                templateUrl: 'views/common/edit-activity-dates.html',
                replace: true,
                scope: {
                    ticketOriginal: '=ticket',
                    dateForm: '=',
                    isDraft: '=',
                    updateIsHandledByParent: '=',
                    onlyShowRequired: '=',
                    ignoreAccessMapping: '=',
                    makeScheduleDatesOptional: '=',
                    makeActualDatesOptional: '='
                },
                link: function (scope) {
                    scope.ticket = _.cloneDeep(scope.ticketOriginal);
                    var datesCopy, parentGuid = scope.ticket ? scope.ticket.parentGuid : '';
                    if (scope.ticket) {
                        makeCopy();
                        adjustTimezone();
                    }
                    scope.$watch('ticketOriginal', function (value) {
                        scope.ticket = _.cloneDeep(scope.ticketOriginal);
                        if (scope.ticket) {
                            adjustTimezone();
                        }
                    });
                    var state = {
                        pendingTicketDatesChange: false
                    };
                    scope.state = state;
                    scope.validator = editTicketDatesService;
                    scope.datePickerOptions = {
                        startingDay: configurationModel.getWeekStartingDay(),
                        'show-weeks': false,
                        'min-date': moment().year(1970).month(0).date(2),
                        'max-date': moment().year(2038).month(0).date(18)
                    };
                    scope.showMeridian = window.showMeridian;
                    scope.$watch('ticket.timing', function () {
                        if (scope.ticket && scope.ticket.timing) {
                            scope.ticket.scheduledStartDate = scope.isFieldDisabled('scheduledStartDate') ? null : scope.ticket.scheduledStartDate;
                            scope.ticket.scheduledEndDate = scope.isFieldDisabled('scheduledEndDate') ? null : scope.ticket.scheduledEndDate;
                        }
                    });
                    /**
                     * Collect changes
                     *
                     * @return {Object} change set
                     */
                    function collectChanges() {
                        if (state.pendingTicketDatesChange) {
                            return {
                                scheduledStartDate: getTimestamp(scope.ticket.scheduledStartDate),
                                scheduledEndDate: getTimestamp(scope.ticket.scheduledEndDate),
                                actualStartDate: getTimestamp(scope.ticket.actualStartDate),
                                actualEndDate: getTimestamp(scope.ticket.actualEndDate)
                            };
                        }
                        else {
                            return {};
                        }
                    }
                    function makeCopy() {
                        datesCopy = _.clone({
                            scheduledStartDate: scope.ticket.scheduledStartDate,
                            scheduledEndDate: scope.ticket.scheduledEndDate,
                            actualStartDate: scope.ticket.actualStartDate,
                            actualEndDate: scope.ticket.actualEndDate
                        });
                    }
                    function adjustTimezone() {
                        if ($rootScope.timezone) {
                            scope.ticket.scheduledStartDate = utilityFunctions.convertToLocalTimezone(scope.ticket.scheduledStartDate, $rootScope.timezone);
                            scope.ticket.scheduledEndDate = utilityFunctions.convertToLocalTimezone(scope.ticket.scheduledEndDate, $rootScope.timezone);
                            scope.ticket.actualStartDate = utilityFunctions.convertToLocalTimezone(scope.ticket.actualStartDate, $rootScope.timezone);
                            scope.ticket.actualEndDate = utilityFunctions.convertToLocalTimezone(scope.ticket.actualEndDate, $rootScope.timezone);
                        }
                    }
                    /**
                     * Handle save changes
                     */
                    scope.save = function () {
                        var changes = collectChanges();
                        var isDraft = scope.isDraft;
                        var singleMode = !scope.updateIsHandledByParent;
                        scope.$emit(events.SAVE_CHANGES_REQUEST, changes, singleMode || isDraft);
                        if (_.size(changes)) {
                            if (isDraft) {
                                closeEditor();
                            }
                            else {
                                if (singleMode) {
                                    updateTicketDates(changes)
                                        .then(function () {
                                        closeEditor();
                                    });
                                }
                            }
                        }
                        else {
                            closeEditor();
                        }
                    };
                    scope.cancel = function () {
                        scope.ticket.scheduledStartDate = datesCopy.scheduledStartDate;
                        scope.ticket.scheduledEndDate = datesCopy.scheduledEndDate;
                        scope.ticket.actualStartDate = datesCopy.actualStartDate;
                        scope.ticket.actualEndDate = datesCopy.actualEndDate;
                        scope.updateDateTime('actual');
                        scope.updateDateTime('scheduled');
                        closeEditor();
                    };
                    /**
                     * Handle user input
                     *
                     * @param {String} type - date type
                     */
                    scope.updateDateTime = function (type) {
                        state.pendingTicketDatesChange = true;
                        editTicketDatesService.updateDateTime(scope.dateForm, scope.ticket, type);
                    };
                    scope.isFieldRequired = function (field) {
                        return scope.ticket && fieldValidationModel.isFieldRequired(scope.ticket.type, scope.ticket.status.value, scope.ticket.timing, field);
                    };
                    scope.isFieldDisabled = function (field) {
                        return scope.ticket && fieldValidationModel.isFieldDisabled(scope.ticket.type, scope.ticket.status.value, scope.ticket.timing, field);
                    };
                    /**
                     * Update ticket dates
                     *
                     * @param {Object} changes
                     * @returns {*}
                     */
                    function updateTicketDates(changes) {
                        return ticketModel.update(scope.ticket.id, scope.ticket.type, changes);
                    }
                    function closeEditor() {
                        if (!scope.updateIsHandledByParent || scope.isDraft) {
                            scope.$emit(events.SAVE_CHANGES_COMPLETE);
                        }
                        clearPendingChangeFlag();
                    }
                    function clearPendingChangeFlag() {
                        state.pendingTicketDatesChange = false;
                    }
                    /**
                     * Handle save all changes event
                     * @param event
                     * @param eventData
                     */
                    function handleSaveAllChangesComplete() {
                        if (!scope.ticket.parentGuid) {
                            scope.ticket.parentGuid = parentGuid;
                        }
                        clearPendingChangeFlag();
                    }
                    function handleToggleEditMode() {
                        makeCopy();
                    }
                    function handleSaveChanges() {
                        console.log('handleSaveChanges in editTicketDates directive');
                        scope.save();
                    }
                    function handleDiscardChanges() {
                        scope.cancel();
                    }
                    function getTimestamp(date, time) {
                        date = $rootScope.timezone ? utilityFunctions.convertToUserPreferenceTimezone(date, $rootScope.timezone) : date;
                        time = time ? moment(time) : moment(date);
                        return moment(date).set('hours', time.get('hours')).set('minutes', time.get('minutes')).format('X') * 1000;
                    }
                    scope.$on(events.SAVE_CHANGES, handleSaveChanges);
                    scope.$on(events.TOGGLE_EDIT_MODE, handleToggleEditMode);
                    scope.$on(events.DISCARD_CHANGES, handleDiscardChanges);
                    scope.$on(events.SAVE_ALL_CHANGES_COMPLETE, handleSaveAllChangesComplete);
                }
            };
        }]);
}());