/*
 * Copyright (c) 2015-2017 Frank de Lange
 * Copyright (c) 2013-2014 Lukas Reschke <lukas@owncloud.com>
 *
 * This file is licensed under the Affero General Public License version 3
 * or later.
 *
 * See the COPYING-README file.
 *
 */


(function(OCA) {

	OCA.Files_Reader = OCA.Files_Reader || {};

	var isMobile = navigator.userAgent.match(/Mobi/i);
	var hasTouch = 'ontouchstart' in document.documentElement;

	function actionHandler(fileName, mime, context) {
		var downloadUrl = '';
		if($('#isPublic').val()) {
			var sharingToken = $('#sharingToken').val();
			downloadUrl = OC.generateUrl('/s/{token}/download?files={files}&path={path}', {
				token: sharingToken,
				files: fileName,
				path:  context.dir
			});
		} else {
			downloadUrl = Files.getDownloadUrl(fileName, context.dir);
		}
		OCA.Files_Reader.Plugin.show(downloadUrl, mime, true);
	}

	/**
	 * @namespace OCA.Files_Reader.Plugin
	 */
	OCA.Files_Reader.Plugin = {

		/**
		 * @param fileList
		 */
		attach: function(fileList) {
			this._extendFileActions(fileList.fileActions);
		},

		hideControls: function() {
			$('#app-content #controls').hide();
            // and, for NC12...
            $('#app-navigation').css("display", "none");
		},

		hide: function() {
			if ($('#fileList').length) {
				FileList.setViewerMode(false);
			}
			$("#controls").show();
			$('#app-content #controls').removeClass('hidden');
            // NC12...
            $('#app-navigation').css("display", "");
			if ($('#isPublic').val()) {
				$('#imgframe').show();
				$('footer').show();
				$('.directLink').show();
				$('.directDownload').show();
			}
			$('iframe').remove();
		},

		/**
		 * @param downloadUrl
		 * @param isFileList
		 */
		show: function(downloadUrl, mimeType, isFileList) {
			var self = this;
			var $iframe;
            		var viewer = OC.generateUrl('/apps/files_reader/?file={file}&type={type}', {file: downloadUrl, type: mimeType});
			// launch in new window on mobile and touch devices...
			if (isMobile || hasTouch) {
				window.open(viewer, downloadUrl);
            		} else {
				$iframe = '<iframe style="width:100%;height:100%;display:block;position:absolute;top:0;" src="' + viewer + '" allowfullscreen="true" webkitallowfullscreen="true" mozallowfullscreen="true"  sandbox="allow-scripts allow-same-origin"/>';
				if (isFileList === true) {
					FileList.setViewerMode(true);
				}
				if ($('#isPublic').val()) {
					// force the preview to adjust its height
					$('#preview').append($iframe).css({ height: '100%' });
					$('body').css({ height: '100%' });
					$('footer').addClass('hidden');
					$('#imgframe').addClass('hidden');
					$('.directLink').addClass('hidden');
					$('.directDownload').addClass('hidden');
					$('#controls').addClass('hidden');
				} else {
					$('#app-content').append($iframe);
					self.hideControls();
				}
			}
		},

		/**
		 * @param fileActions
		 * @private
		 */
		_extendFileActions: function(fileActions) {
			var self = this;
			fileActions.registerAction({
				name: 'view-epub',
				displayName: 'View',
				mime: 'application/epub+zip',
				permissions: OC.PERMISSION_READ,
				actionHandler: function(fileName, context){
					return actionHandler(fileName, 'application/epub+zip', context);
				}
			});
			fileActions.registerAction({
				name: 'view-cbr',
				displayName: 'View',
				mime: 'application/x-cbr',
				permissions: OC.PERMISSION_READ,
				actionHandler: function(fileName, context) {
					return actionHandler(fileName, 'application/x-cbr', context);
				}
			});
			fileActions.registerAction({
				name: 'view-pdf',
				displayName: 'View',
				mime: 'application/pdf',
				permissions: OC.PERMISSION_READ,
				actionHandler: function(fileName, context) {
					return actionHandler(fileName, 'application/pdf', context);
				}
			});

            if (oc_appconfig.filesReader.enableEpub === 'true')
                fileActions.setDefault('application/epub+zip', 'view-epub');
            if (oc_appconfig.filesReader.enableCbx === 'true')
                fileActions.setDefault('application/x-cbr', 'view-cbr');
            if (oc_appconfig.filesReader.enablePdf === 'true')
                fileActions.setDefault('application/pdf', 'view-pdf');
		}
	};

})(OCA);

OC.Plugins.register('OCA.Files.FileList', OCA.Files_Reader.Plugin);

// FIXME: Hack for single public file view since it is not attached to the fileslist
$(document).ready(function(){
    if ($('#isPublic').val()
        && ($('#mimetype').val() === 'application/epub+zip'
            || $('#mimetype').val() === 'application/pdf'
            || $('#mimetype').val() === 'application/x-cbr')
    ) {
		var sharingToken = $('#sharingToken').val();
		var downloadUrl = OC.generateUrl('/s/{token}/download', {token: sharingToken});
		var viewer = OCA.Files_Reader.Plugin;
		var mime = $('#mimetype').val();
		viewer.show(downloadUrl, mime, false);
	}
});
