function()

in kahuna/public/js/components/gr-archiver/gr-archiver.js [27:127]

• 59 lines of code
• 10 McCabe index (conditional complexity)

    function ($scope,
              $window,
              archiveService,
              imageAccessor,
              imageLogic,
              humanJoin,
              mediaApi) {

        const ctrl = this;

        ctrl.archivedState = 'unarchived';
        ctrl.archiving = false;
        ctrl.canArchive = false;

        ctrl.canUndelete = false;
        ctrl.isDeleted = false;
        ctrl.undeleting = false;

        ctrl.undelete = undelete;

        mediaApi.getSession().then(session => {
            if (ctrl.image && ctrl.image.data.softDeletedMetadata !== undefined && (session.user.permissions.canDelete || session.user.email === ctrl.image.data.uploadedBy)) { ctrl.canUndelete = true; }
            if (ctrl.image && ctrl.image.data.softDeletedMetadata !== undefined) { ctrl.isDeleted = true; }
        });

        mediaApi.canUserArchive().then(canArchive => {
            ctrl.canArchive = canArchive;
        });

        $scope.$watchCollection(getImageArray, (images) => {
            const noneCanBeArchived = ! images.some(imageLogic.canBeArchived);
            const allPersisted = images.every(imageAccessor.isPersisted);
            ctrl.archivedState = noneCanBeArchived ? 'kept' :
                allPersisted ? 'archived' : 'unarchived';

            const explTokens = listAllPersistenceExplanations(images);
            let explanation, reason;
            if (images.length === 1) {
                reason = humanJoin(explTokens, 'and');
                explanation = `Kept in Library because the image has been ${reason}.`;
            } else {
                reason = humanJoin(explTokens, 'or');
                explanation = `Kept in Library because the images have been ${reason}.`;
            }
            ctrl.archivedExplanation = explanation;
        });

        ctrl.archive = () => {
            ctrl.archiving = true;
            archiveService.batchArchive(getImageArray())
                .catch(() => {
                    $window.alert('Failed to add to Library, please try again.');
                })
                .finally(() => {
                    ctrl.archiving = false;
                });
        };

        ctrl.unarchive = () => {
            ctrl.archiving = true;
            archiveService.batchUnarchive(getImageArray())
                .catch(() => {
                    $window.alert('Failed to remove from Library, please try again.');
                })
                .finally(() => {
                    ctrl.archiving = false;
                });
        };

        function getImageArray() {
            if (ctrl.images && ! ctrl.image) {
                // Convert from Immutable Set to JS Array
                return Array.from(ctrl.images);
            } else if (! ctrl.images && ctrl.image) {
                return [ctrl.image];
            } else {
                throw new Error('Either gr:images or gr:image should be provided ' +
                                'to gr-archiver directive');
            }
        }

        function listAllPersistenceExplanations(images) {
            return images.
                map(imageLogic.getPersistenceExplanation).
                map(items => new Set(items)).
                reduce((all, items) => all.union(items)).
                toArray();
        }
        function undelete() {
            ctrl.undeleting = true;
            const imageId = ctrl.image.data.id;
            mediaApi.undelete(imageId)
                .then(
                  ctrl.canUndelete = ctrl.isDeleted = false
                ).catch(() => {
                     $window.alert('Failed to undelete image!, please try again.');
                }).finally(() => {
                     ctrl.undeleting = false;
                });
        }
    }