/*
 * Copyright (c) 2014
 *
 * This file is licensed under the Affero General Public License version 3
 * or later.
 *
 * See the COPYING-README file.
 *
 */

/* global FileActions, Files */
/* global dragOptions, folderDropOptions */
OCA.Sharing = {};
if (!OCA.Files) {
	OCA.Files = {};
}
OCA.Sharing.PublicApp = {
	_initialized: false,

	initialize: function($el) {
		var self = this;
		var fileActions;
		if (this._initialized) {
			return;
		}
		fileActions = new OCA.Files.FileActions();
		// default actions
		fileActions.registerDefaultActions();
		// legacy actions
		fileActions.merge(window.FileActions);
		// regular actions
		fileActions.merge(OCA.Files.fileActions);

		this._initialized = true;
		this.initialDir = $('#dir').val();

		// file list mode ?
		if ($el.find('#filestable').length) {
			this.fileList = new OCA.Files.FileList(
				$el,
				{
					scrollContainer: $(window),
					dragOptions: dragOptions,
					folderDropOptions: folderDropOptions,
					fileActions: fileActions
				}
			);
			this.files = OCA.Files.Files;
			this.files.initialize();
		}

		var mimetype = $('#mimetype').val();

		if (typeof FileActions !== 'undefined') {
			// Show file preview if previewer is available, images are already handled by the template
			if (mimetype.substr(0, mimetype.indexOf('/')) !== 'image' && $('.publicpreview').length === 0) {
				// Trigger default action if not download TODO
				var action = FileActions.getDefault(mimetype, 'file', OC.PERMISSION_READ);
				if (typeof action !== 'undefined') {
					action($('#filename').val());
				}
			}
		}

		// dynamically load image previews
		if (mimetype.substr(0, mimetype.indexOf('/')) === 'image' ) {

			var params = {
				x: $(document).width() * window.devicePixelRatio,
				a: 'true',
				file: encodeURIComponent(this.initialDir + $('#filename').val()),
				t: $('#sharingToken').val(),
				scalingup: 0
			};

			var img = $('<img class="publicpreview">');
			img.attr('src', OC.filePath('files_sharing', 'ajax', 'publicpreview.php') + '?' + OC.buildQueryString(params));
			img.appendTo('#imgframe');
		}

		if (this.fileList) {
			// TODO: move this to a separate PublicFileList class that extends OCA.Files.FileList (+ unit tests)
			this.fileList.getDownloadUrl = function(filename, dir) {
				if ($.isArray(filename)) {
					filename = JSON.stringify(filename);
				}
				var path = dir || FileList.getCurrentDirectory();
				var params = {
					service: 'files',
					t: $('#sharingToken').val(),
					path: path,
					files: filename,
					download: null
				};
				return OC.filePath('', '', 'public.php') + '?' + OC.buildQueryString(params);
			};

			this.fileList.getAjaxUrl = function(action, params) {
				params = params || {};
				params.t = $('#sharingToken').val();
				return OC.filePath('files_sharing', 'ajax', action + '.php') + '?' + OC.buildQueryString(params);
			};

			this.fileList.linkTo = function(dir) {
				var params = {
					service: 'files',
					t: $('#sharingToken').val(),
					dir: dir
				};
				return OC.filePath('', '', 'public.php') + '?' + OC.buildQueryString(params);
			};

			this.fileList.generatePreviewUrl = function(urlSpec) {
				urlSpec.t = $('#dirToken').val();
				return OC.generateUrl('/apps/files_sharing/ajax/publicpreview.php?') + $.param(urlSpec);
			};

			var file_upload_start = $('#file_upload_start');
			file_upload_start.on('fileuploadadd', function(e, data) {
				var fileDirectory = '';
				if(typeof data.files[0].relativePath !== 'undefined') {
					fileDirectory = data.files[0].relativePath;
				}

				// Add custom data to the upload handler
				data.formData = {
					requesttoken: $('#publicUploadRequestToken').val(),
					dirToken: $('#dirToken').val(),
					subdir: self.fileList.getCurrentDirectory(),
					file_directory: fileDirectory
				};
			});

			// do not allow sharing from the public page
			delete this.fileList.fileActions.actions.all.Share;

			this.fileList.changeDirectory(this.initialDir || '/', false, true);

			// URL history handling
			this.fileList.$el.on('changeDirectory', _.bind(this._onDirectoryChanged, this));
			OC.Util.History.addOnPopStateHandler(_.bind(this._onUrlChanged, this));
		}

		$(document).on('click', '#directLink', function() {
			$(this).focus();
			$(this).select();
		});

		// legacy
		window.FileList = this.fileList;
	},

	_onDirectoryChanged: function(e) {
		OC.Util.History.pushState({
			service: 'files',
			t: $('#sharingToken').val(),
			// arghhhh, why is this not called "dir" !?
			path: e.dir
		});
	},

	_onUrlChanged: function(params) {
		this.fileList.changeDirectory(params.path || params.dir, false, true);
	}
};

$(document).ready(function() {
	var App = OCA.Sharing.PublicApp;
	App.initialize($('#preview'));

	if (window.Files) {
		// HACK: for oc-dialogs previews that depends on Files:
		Files.lazyLoadPreview = function(path, mime, ready, width, height, etag) {
			return App.fileList.lazyLoadPreview({
				path: path,
				mime: mime,
				callback: ready,
				width: width,
				height: height,
				etag: etag
			});
		};
	}
});