import {gettext} from 'core/utils';

angular.module('superdesk.core.activity.list', [])
    .directive('sdActivityList', ['superdesk', 'activityService', 'workflowService', 'asset', 'notify', 'lodash',
        function(superdesk, activityService, workflowService, asset, notify, _) {
            return {
                scope: {
                    item: '=',
                    type: '@',
                    action: '@',
                    done: '&',
                    single: '=',
                    preview: '@',
                },
                templateUrl: asset.templateUrl('core/activity/views/activity-list.html'),
                link: function(scope, elem, attrs) {
                    scope.item.actioning = {};

                    var intent: any = {
                        action: scope.action,
                    };

                    if (scope.type) {
                        intent.type = scope.type;
                    } else {
                        return;
                    }

                    var initializeActivities = function(item) {
                        if (!item) {
                            return;
                        }

                        scope.activities = _.filter(superdesk.findActivities(intent, scope.item), (activity) => {
                            if (activity.monitor) {
                                scope.item.actioning = {};
                                scope.item.actioning[activity._id] = false;
                                scope.$watchCollection('item.actioning', (newValue, oldValue) => {
                                    if (scope.item.actioning &&
                                !scope.item.actioning[activity._id] &&
                                oldValue &&
                                newValue[activity._id] !== oldValue[activity._id]) {
                                        if (scope.item.error && scope.item.error.data
                                            && scope.item.error.data._message) {
                                            notify.error(gettext(scope.item.error.data._message));
                                            delete scope.item.error;
                                        }
                                    }
                                });
                            }

                            return workflowService.isActionAllowed(scope.item, activity.action);
                        });

                        if (scope.preview) {
                            scope.limit = scope.activities.length;
                        } else {
                            scope.limit = scope.activities.length > 6 ? 5 : 6;
                        }

                        // register key shortcuts for single instance of activity list - in preview sidebar
                        if (scope.single) {
                            angular.forEach(scope.activities, (activity) => {
                                if (activity.key) {
                                    if (activity.unbind) {
                                        activity.unbind();
                                    }
                                    activity.unbind = scope.$on('key:' + activity.key, () => {
                                        scope.run(activity);
                                    });
                                }
                            });
                        }
                    };

                    scope.run = function runActivity(activity, e) {
                        if (scope.$root.link(activity._id, scope.item)) {
                            return; // don't try to run it, just let it change url
                        }

                        if (activity.monitor) {
                            scope.item.actioning[activity._id] = true;
                        }

                        if (!_.isNil(e)) {
                            e.stopPropagation();
                        }

                        activityService.start(activity, {data: {item: scope.item}})
                            .then(() => {
                                if (typeof scope.done === 'function') {
                                    scope.done(scope.data);
                                }
                            });
                    };

                    scope.$watch('item', initializeActivities, true);
                },
            };
        }]);