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

/* global OC, t, BreadCrumb, FileActions, FileList, Files */
$(document).ready(function() {
	var deletedRegExp = new RegExp(/^(.+)\.d[0-9]+$/);

	/**
	 * Convert a file name in the format filename.d12345 to the real file name.
	 * This will use basename.
	 * The name will not be changed if it has no ".d12345" suffix.
	 * @param name file name
	 * @return converted file name
	 */
	function getDeletedFileName(name) {
		name = OC.basename(name);
		var match = deletedRegExp.exec(name);
		if (match && match.length > 1) {
			name = match[1];
		}
		return name;
	}

	function removeCallback(result) {
		if (result.status !== 'success') {
			OC.dialogs.alert(result.data.message, t('files_trashbin', 'Error'));
		}

		var files = result.data.success;
		var $el;
		for (var i = 0; i < files.length; i++) {
			$el = FileList.remove(OC.basename(files[i].filename), {updateSummary: false});
			FileList.fileSummary.remove({type: $el.attr('data-type'), size: $el.attr('data-size')});
		}
		FileList.fileSummary.update();
		FileList.updateEmptyContent();
		enableActions();
	}

	Files.updateStorageStatistics = function() {
		// no op because the trashbin doesn't have
		// storage info like free space / used space
	};

	if (typeof FileActions !== 'undefined') {
		FileActions.register('all', 'Restore', OC.PERMISSION_READ, OC.imagePath('core', 'actions/history'), function(filename) {
			var tr = FileList.findFileEl(filename);
			var deleteAction = tr.children("td.date").children(".action.delete");
			deleteAction.removeClass('delete-icon').addClass('progress-icon');
			disableActions();
			$.post(OC.filePath('files_trashbin', 'ajax', 'undelete.php'), {
					files: JSON.stringify([filename]),
					dir: FileList.getCurrentDirectory()
				},
			    removeCallback
			);
		}, t('files_trashbin', 'Restore'));
	};

	FileActions.register('all', 'Delete', OC.PERMISSION_READ, function() {
		return OC.imagePath('core', 'actions/delete');
	}, function(filename) {
		$('.tipsy').remove();
		var tr = FileList.findFileEl(filename);
		var deleteAction = tr.children("td.date").children(".action.delete");
		deleteAction.removeClass('delete-icon').addClass('progress-icon');
		disableActions();
		$.post(OC.filePath('files_trashbin', 'ajax', 'delete.php'), {
				files: JSON.stringify([filename]),
				dir: FileList.getCurrentDirectory()
			},
			removeCallback
		);
	});

	// Sets the select_all checkbox behaviour :
	$('#select_all').click(function() {
		if ($(this).attr('checked')) {
			// Check all
			$('td.filename input:checkbox').attr('checked', true);
			$('td.filename input:checkbox').parent().parent().addClass('selected');
		} else {
			// Uncheck all
			$('td.filename input:checkbox').attr('checked', false);
			$('td.filename input:checkbox').parent().parent().removeClass('selected');
		}
		procesSelection();
	});
	$('.undelete').click('click', function(event) {
		event.preventDefault();
		var allFiles = $('#select_all').is(':checked');
		var files = [];
		var params = {};
		disableActions();
		if (allFiles) {
			FileList.showMask();
			params = {
				allfiles: true,
				dir: FileList.getCurrentDirectory()
			};
		}
		else {
			files = Files.getSelectedFiles('name');
			for (var i = 0; i < files.length; i++) {
				var deleteAction = FileList.findFileEl(files[i]).children("td.date").children(".action.delete");
				deleteAction.removeClass('delete-icon').addClass('progress-icon');
			}
			params = {
				files: JSON.stringify(files),
				dir: FileList.getCurrentDirectory()
			};
		}

		$.post(OC.filePath('files_trashbin', 'ajax', 'undelete.php'),
			params,
			function(result) {
				if (allFiles) {
					if (result.status !== 'success') {
						OC.dialogs.alert(result.data.message, t('files_trashbin', 'Error'));
					}
					FileList.hideMask();
					// simply remove all files
					FileList.update('');
					enableActions();
				}
				else {
					removeCallback(result);
				}
			}
		);
	});

	$('.delete').click('click', function(event) {
		event.preventDefault();
		var allFiles = $('#select_all').is(':checked');
		var files = [];
		var params = {};
		if (allFiles) {
			params = {
				allfiles: true,
				dir: FileList.getCurrentDirectory()
			};
		}
		else {
			files = Files.getSelectedFiles('name');
			params = {
				files: JSON.stringify(files),
				dir: FileList.getCurrentDirectory()
			};
		}

		disableActions();
		if (allFiles) {
			FileList.showMask();
		}
		else {
			for (var i = 0; i < files.length; i++) {
				var deleteAction = FileList.findFileEl(files[i]).children("td.date").children(".action.delete");
				deleteAction.removeClass('delete-icon').addClass('progress-icon');
			}
		}

		$.post(OC.filePath('files_trashbin', 'ajax', 'delete.php'),
				params,
				function(result) {
					if (allFiles) {
						if (result.status !== 'success') {
							OC.dialogs.alert(result.data.message, t('files_trashbin', 'Error'));
						}
						FileList.hideMask();
						// simply remove all files
						FileList.setFiles([]);
						enableActions();
					}
					else {
						removeCallback(result);
					}
				}
		);

	});

	$('#fileList').on('click', 'td.filename input', function() {
		var checkbox = $(this).parent().children('input:checkbox');
		$(checkbox).parent().parent().toggleClass('selected');
		if ($(checkbox).is(':checked')) {
			var selectedCount = $('td.filename input:checkbox:checked').length;
			if (selectedCount === $('td.filename input:checkbox').length) {
				$('#select_all').prop('checked', true);
			}
		} else {
			$('#select_all').prop('checked',false);
		}
		procesSelection();
	});

	$('#fileList').on('click', 'td.filename a', function(event) {
		var mime = $(this).parent().parent().data('mime');
		if (mime !== 'httpd/unix-directory') {
			event.preventDefault();
		}
		var filename = $(this).parent().parent().attr('data-file');
		var tr = FileList.findFileEl(filename);
		var renaming = tr.data('renaming');
		if(!renaming){
			if(mime.substr(0, 5) === 'text/'){ //no texteditor for now
				return;
			}
			var type = $(this).parent().parent().data('type');
			var permissions = $(this).parent().parent().data('permissions');
			var action = FileActions.getDefault(mime, type, permissions);
			if(action){
				event.preventDefault();
				action(filename);
			}
		}
	});

	/**
	 * Override crumb URL maker (hacky!)
	 */
	FileList.breadcrumb.getCrumbUrl = function(part, index) {
		if (index === 0) {
			return OC.linkTo('files', 'index.php');
		}
		return OC.linkTo('files_trashbin', 'index.php')+"?dir=" + encodeURIComponent(part.dir);
	};

	Files.generatePreviewUrl = function(urlSpec) {
		return OC.generateUrl('/apps/files_trashbin/ajax/preview.php?') + $.param(urlSpec);
	};

	Files.getDownloadUrl = function(action, params) {
		// no downloads
		return '#';
	};

	Files.getAjaxUrl = function(action, params) {
		var q = '';
		if (params) {
			q = '?' + OC.buildQueryString(params);
		}
		return OC.filePath('files_trashbin', 'ajax', action + '.php') + q;
	};


	/**
	 * Override crumb making to add "Deleted Files" entry
	 * and convert files with ".d" extensions to a more
	 * user friendly name.
	 */
	var oldMakeCrumbs = BreadCrumb.prototype._makeCrumbs;
	BreadCrumb.prototype._makeCrumbs = function() {
		var parts = oldMakeCrumbs.apply(this, arguments);
		// duplicate first part
		parts.unshift(parts[0]);
		parts[1] = {
			dir: '/',
			name: t('files_trashbin', 'Deleted Files')
		};
		for (var i = 2; i < parts.length; i++) {
			parts[i].name = getDeletedFileName(parts[i].name);
		}
		return parts;
	};

	FileActions.actions.dir = {
		// only keep 'Open' action for navigation
		'Open': FileActions.actions.dir.Open
	};
});

function enableActions() {
	$(".action").css("display", "inline");
	$(":input:checkbox").css("display", "inline");
}

function disableActions() {
	$(".action").css("display", "none");
	$(":input:checkbox").css("display", "none");
}