'use strict';

(function (global) {

    var sendEventToUploader = function sendEventToUploader(items, files, el) {

        var passItems, contextNode;
        if (items.length && items[0] && (items[0].getAsEntry || items[0].webkitGetAsEntry)) {
            passItems = items;
        }
        if (el.ajxpNode) {
            contextNode = el.ajxpNode;
        } else {
            contextNode = pydio.getContextHolder().getContextNode();
        }
        UploaderModel.Store.getInstance().handleDropEventResults(passItems, files, contextNode);
        if (!UploaderModel.Store.getInstance().getAutoStart()) {
            pydio.getController().fireAction('upload');
        }
    };

    var createWorkspaceMenu = function createWorkspaceMenu(event, items, files, el) {

        var targetNode = new AjxpNode('/', false, '');
        var data = [];
        var uploaderStore = UploaderModel.Store.getInstance();
        uploaderStore.handleDropEventResults(items, files, targetNode, data);

        var menuItems = [];
        global.pydio.user.getRepositoriesList().forEach(function (repository) {

            if (repository.getId().indexOf('ajxp_') === 0 || repository.getId() === 'inbox' || !repository.allowCrossRepositoryCopy) return;
            if (repository.hasContentFilter() || repository.getOwner()) return;
            if (repository.getAccessStatus() === 'declined') return;

            var repoId = repository.getId();
            menuItems.push({
                name: repository.getLabel(),
                alt: repository.getDescription(),
                icon_class: 'mdi mdi-upload',
                callback: function callback(e) {
                    data.forEach(function (item) {
                        item.updateRepositoryId(repoId);
                        if (item instanceof UploaderModel.FolderItem) uploaderStore.pushFolder(item);else uploaderStore.pushFile(item);
                    });
                }
            });
        });

        var contextMenu = new Proto.Menu({
            menuTitle: global.pydio.MessageHash['user_home.78'],
            selector: '', // context menu will be shown when element with class name of "contextmenu" is clicked
            className: 'menu desktop home_upload', // this is a class which will be attached to menu container (used for css styling)
            menuItems: menuItems,
            fade: false,
            zIndex: 2000,
            forceCheckHeight: true
        });
        contextMenu.show(event);
    };

    var initialized = false;

    var initUploaderExtension = function initUploaderExtension() {
        return;
        if (initialized) return;else initialized = true;
        var mainElement = global.pydio.Parameters.get('MAIN_ELEMENT');
        var fullZone = $(mainElement);
        var listZones = $$('[ajxpClass="FilesList"]');
        var listZone = undefined;
        var listZoneSelector = undefined;
        if (listZones.length) {
            listZone = listZones[0];
            listZoneSelector = '#' + listZone.id;
            listZone.addClassName('droparea');
        }
        var dropzone = undefined;
        if (fullZone) dropzone = fullZone;else if (listZone) dropzone = listZone;else return;

        var findElement = function findElement(event) {
            var el = Event.findElement(event, selector);
            if (el.hasClassName('ajxpNodeProvider')) {
                if (Event.findElement(event, '.class-FetchedResultPane')) {
                    return listZone ? listZone : dropzone;
                }
                if (el.hasClassName('ajxpNodeLeaf') || el.ajxpNode.isLeaf() || el.ajxpNode.getAjxpMime() === 'ajxp_recycle') {
                    if (listZoneSelector) el = Event.findElement(event, listZoneSelector);else el = Event.findElement(event, '[ajxpClass="FilesList"]');
                }
            }
            if (!el) {
                return listZone ? listZone : dropzone;
            }
            return el;
        };

        var selector = '#' + mainElement + (listZoneSelector ? ',' + listZoneSelector : '') + ',div.webfx-tree-item,.ajxpNodeProvider';
        var dragOverFunc = function dragOverFunc(event) {
            var el = findElement(event);
            el.addClassName("dropareaHover");
            event.preventDefault();
        };
        var dropFunc = function dropFunc(event) {
            event.preventDefault();
            event.stopPropagation();
            var el = findElement(event);
            el.removeClassName("dropareaHover");
            var items = event.dataTransfer.items || [];
            var files = event.dataTransfer.files;
            ResourcesManager.loadClassesAndApply(["UploaderModel"], function () {
                if (el.hasClassName('ajxp_ws-welcome')) {
                    createWorkspaceMenu(event, items, files, el);
                } else {
                    sendEventToUploader(items, files, el);
                }
            });
        };
        var enterFunc = function enterFunc(event) {
            var el = findElement(event);
            el.addClassName("dropareaHover");
        };
        var leaveFunc = function leaveFunc(event) {
            var el = findElement(event);
            el.removeClassName("dropareaHover");
        };
        AjxpDroppables.dragOverHook = dragOverFunc;
        AjxpDroppables.dropHook = dropFunc;
        AjxpDroppables.dragEnterHook = enterFunc;
        AjxpDroppables.dragLeaveHook = leaveFunc;
        dropzone.addEventListener("dragover", dragOverFunc, true);
        dropzone.addEventListener("drop", dropFunc, true);
        dropzone.addEventListener("dragenter", enterFunc, true);
        dropzone.addEventListener("dragleave", leaveFunc, true);
        document.observeOnce("ajaxplorer:trigger_repository_switch", function () {
            initialized = false;
            dropzone.removeClassName('droparea');
            dropzone.removeEventListener("dragover", dragOverFunc, true);
            dropzone.removeEventListener("drop", dropFunc, true);
            dropzone.removeEventListener("dragenter", enterFunc, true);
            dropzone.removeEventListener("dragleave", leaveFunc, true);
            AjxpDroppables.dragOverHook = null;
            AjxpDroppables.dropHook = null;
            AjxpDroppables.dragEnterHook = null;
            AjxpDroppables.dragLeaveHook = null;
        });
    };

    var ns = global.UploaderGlobalListener || {};
    ns.initUploaderExtension = initUploaderExtension;
    global.UploaderGlobalListener = ns;
})(window);