"use strict";
(function () {
    'use strict';
    angular.module('myitsmApp')
        .directive('editPoi', ['events', 'locationModel', '$state', '$timeout', function (events, locationModel, $state, $timeout) {
            return {
                restrict: 'E',
                templateUrl: 'views/work-order/edit-poi.html',
                replace: true,
                scope: {
                    ticket: '=',
                    isDraft: '=',
                    editMode: '=mode',
                    updateIsHandledByParent: '='
                },
                link: function (scope) {
                    scope.clearField = function (clearAll) {
                        if (clearAll) {
                            scope.viewData.location = null;
                            scope.viewData.poi = null;
                        }
                        else {
                            scope.viewData.poi = null;
                        }
                        scope.state.pendingChanges = true;
                    };
                    scope.filterLocationsByCriteria = function (term) {
                        return locationModel.filterLocations(term).then(function (locations) {
                            return locations;
                        });
                    };
                    scope.filterPOIbyCriteria = function (term) {
                        scope.state.loadingPOI = true;
                        return locationModel.filterLocationPOI(scope.viewData.location.id, term).then(function (poiList) {
                            return poiList;
                        }).finally(function () {
                            scope.state.loadingPOI = false;
                        });
                    };
                    scope.handleLocationChange = function () {
                        scope.viewData.poi = null;
                        scope.ticket.location = {};
                        scope.state.pendingChanges = true;
                    };
                    scope.handlePOIChange = function () {
                        scope.state.pendingChanges = true;
                        if (scope.viewData.poi && scope.viewData.poi.id) {
                            scope.ticket.location.poiId = scope.viewData.poi.id;
                            scope.ticket.location.poiName = scope.viewData.poi.name;
                            scope.ticket.location.flooMapId = scope.viewData.poi.floormap ? scope.viewData.poi.floormap.id : '';
                        }
                    };
                },
                controller: ['$scope', 'ticketModel', 'locationModel', 'googleMapService', function ($scope, ticketModel, locationModel, googleMapService) {
                        var ticket = $scope.ticket;
                        $scope.showPOIMap = function (poi) {
                            if (poi && poi.poiId && googleMapService.isAvailable) {
                                $state.go('location', { mapId: poi.floorMapId, id: poi.poiId });
                            }
                        };
                        function handleSaveChanges() {
                            $scope.save();
                        }
                        function applyChanges() {
                            var poi = $scope.viewData.poi || {};
                            if (poi.id) {
                                $scope.ticket.location = {
                                    poiId: poi.id,
                                    poiName: poi.name,
                                    floorMapId: poi.floormap ? poi.floormap.id : ''
                                };
                            }
                            else {
                                $scope.ticket.location = null;
                            }
                            $scope.state.pendingChanges = false;
                            if (!$scope.updateIsHandledByParent || $scope.isDraft) {
                                $scope.$emit(events.SAVE_CHANGES_COMPLETE);
                            }
                        }
                        function handleDiscardChanges() {
                            $scope.cancel();
                        }
                        /**
                         * Collect changes
                         * @return {Object} change set
                         */
                        function collectChanges() {
                            var changes = {};
                            if ($scope.state.pendingChanges) {
                                var initialPoiId = $scope.initialData.poiId;
                                var viewDataPoiId = $scope.viewData.poi && $scope.viewData.poi.id || null;
                                if (initialPoiId !== viewDataPoiId) {
                                    var poi = $scope.viewData.poi || {};
                                    changes.poiId = poi.id || null;
                                }
                            }
                            return changes;
                        }
                        /**
                         * 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) {
                                    applyChanges();
                                }
                                else {
                                    if (singleMode) {
                                        updatePOI(changes)
                                            .then(function () {
                                            applyChanges();
                                        });
                                    }
                                }
                            }
                            else if (singleMode || isDraft) {
                                $scope.$emit(events.SAVE_CHANGES_COMPLETE);
                            }
                        };
                        $scope.cancel = function () {
                            $scope.ticket.location = $scope.initialData;
                            $scope.state.pendingChanges = false;
                        };
                        var removeWatcher = $scope.$watch('ticket', function (newData) {
                            if (newData) {
                                handleToggleEditMode();
                                removeWatcher();
                            }
                        });
                        function handleToggleEditMode() {
                            $scope.initialData = _.clone($scope.ticket.location) || {};
                            $scope.state = {
                                pendingChanges: false,
                                dataIsLoading: true,
                                loadingPOI: false
                            };
                            $scope.viewData = {
                                location: null,
                                poi: $scope.initialData.poiName
                            };
                            if ($scope.initialData.poiId) {
                                locationModel.getLocationByPoiId($scope.initialData.poiId)
                                    .then(function (location) {
                                    $scope.state.dataIsLoading = false;
                                    $scope.viewData.location = location;
                                    if (!$scope.viewData.poi) {
                                        var assetsByLocation = locationModel.poiByLocationCache[location.id] || [];
                                        var assetData = _.find(assetsByLocation, { id: $scope.initialData.poiId });
                                        if (assetData) {
                                            $timeout(function () {
                                                $scope.viewData.poi = {
                                                    name: assetData.name,
                                                    id: assetData.id,
                                                    floormap: { id: assetData.floorMapId }
                                                };
                                            });
                                        }
                                    }
                                    locationModel.getLocationsList();
                                });
                            }
                            else {
                                $scope.state.dataIsLoading = false;
                            }
                        }
                        function updatePOI(changes) {
                            return ticketModel.update(ticket.id, ticket.type, changes);
                        }
                        /**
                         * Handle save all changes event
                         * @param event
                         * @param eventData
                         */
                        function handleSaveAllChangesComplete() {
                            if ($scope.updateIsHandledByParent && !$scope.isDraft) {
                                applyChanges();
                            }
                        }
                        $scope.$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);
                    }]
            };
        }]);
}());