/*
 * Licensed Materials - Property of IBM
 *
 * IBM Cognos Products: Modeling UI
 *
 * Copyright IBM Corp. 2017, 2021
 *
 * US Government Users Restricted Rights - Use, duplication or disclosure restricted by GSA ADP Schedule Contract with IBM Corp.
 */


define(
	['bi/glass/core/Class', '../StringResourcesBridge', '../FileUploadBridge'],
	function (BaseClass, Resources, FileUploader) {
		var fileUploader;
		var APPEND_ITEM_ID = 'com.ibm.bi.ca-uploadModeller.ca-modeller-glass-upload-append' ;
		var UploadActionHandler = BaseClass.extend({
			init: function () {
				UploadActionHandler.inherited('init', this, arguments);
			},
			
			initialize: function(context) {
				var providers  = context.controllerConfig && context.controllerConfig.providers;
				if (!fileUploader) {
					fileUploader = new FileUploader(context.glassContext);
					fileUploader.render({ providers: providers });
				}
			},

			_isSupported: function (application) {
				if (!window.File) {
					application.showErrorMessage(Resources.get('errorHTML5Support') + '(1)');

					return false;
				} else if (!window.FileReader) {
					application.showErrorMessage(Resources.get('errorHTML5Support') + '(2)');

					return false;
				} else if (!window.FileList) {
					application.showErrorMessage(Resources.get('errorHTML5Support') + '(3)');

					return false;
				} else if (!window.Blob) {
					application.showErrorMessage(Resources.get('errorHTML5Support') + '(4)');

					return false;
				} else if (/^((?!chrome).)*safari\/537/i.test(navigator.userAgent)) {
					// safari 8 not good
					application.showErrorMessage(Resources.get('errorUploadSupport'));

					return false;
				}

				return true;
			},

			// #onSelectItem for Upload or refresh button
			onSelectItem: function (context) {
				if (this._isSupported(context.glassContext)) {
					// fileUploadId
					var fileUploadId = null;
					var isAppend = false;
					// moser needs destination to be undefined as default
					var folderName = undefined;

					if (context.target.activeObject) {
						fileUploadId = context.target.activeObject.aSelectedContext[0].id;
						ancestors = context.target.activeObject.aSelectedContext[0].ancestors
						// https://jsw.ibm.com/browse/MUI-1256
						folderName = (ancestors && ancestors.length > 0) ? ancestors[ancestors.length -1].defaultName : undefined;

						if (context.target.itemId === APPEND_ITEM_ID) {
							isAppend = true;
						}
					}

					fileUploader.showFilePicker(fileUploadId, null, isAppend, { destination: folderName });
				}
			},

			isItemVisible: function (context) {

				if (!context.target.activeObject) {
					// Show in the Create New menu
					return true;
				}


				var obj = context.target.activeObject.aSelectedContext[0];
				var singleSelect = context.target.activeObject.aSelectedContext.length === 1;
				var visible =
					singleSelect &&
					obj.type === 'uploadedFile' &&
					_.indexOf(obj.permissions, 'write') > -1;

				if (obj.extensions && obj.extensions.refresh === false) {
					visible = false;
				}

				return visible;
			}
		});

		return UploadActionHandler;
	}
);