/**
 * Copyright (c) 2014
 *
 * @author Azul <azul@riseup.net>
 * @author Gary Kim <gary@garykim.dev>
 * @author Jan C. Borchardt <hey@jancborchardt.net>
 * @author John Molakvoæ <skjnldsv@protonmail.com>
 * @author Robin Appelman <robin@icewind.nl>
 * @author Vincent Petry <vincent@nextcloud.com>
 *
 * @license AGPL-3.0-or-later
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 *
 */

/* eslint-disable */
(function() {
	var DELETED_REGEXP = new RegExp(/^(.+)\.d[0-9]+$/)
	var FILENAME_PROP = '{http://nextcloud.org/ns}trashbin-filename'
	var DELETION_TIME_PROP = '{http://nextcloud.org/ns}trashbin-deletion-time'
	var TRASHBIN_ORIGINAL_LOCATION = '{http://nextcloud.org/ns}trashbin-original-location'
	var TRASHBIN_TITLE = '{http://nextcloud.org/ns}trashbin-title'

	/**
	 * 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 {String} name file name
	 * @returns {String} converted file name
	 */
	function getDeletedFileName(name) {
		name = OC.basename(name)
		var match = DELETED_REGEXP.exec(name)
		if (match && match.length > 1) {
			name = match[1]
		}
		return name
	}

	/**
	 * @class OCA.Trashbin.FileList
	 * @augments OCA.Files.FileList
	 * @classdesc List of deleted files
	 *
	 * @param $el container element with existing markup for the #controls
	 * and a table
	 * @param [options] map of options
	 */
	var FileList = function($el, options) {
		this.client = options.client
		this.initialize($el, options)
	}
	FileList.prototype = _.extend({}, OCA.Files.FileList.prototype,
		/** @lends OCA.Trashbin.FileList.prototype */ {
		id: 'trashbin',
		appName: t('files_trashbin', 'Deleted files'),
		/** @type {OC.Files.Client} */
		client: null,

		/**
		 * @private
		 */
		initialize: function() {
			this.client.addFileInfoParser(function(response, data) {
				var props = response.propStat[0].properties
				var path = props[TRASHBIN_ORIGINAL_LOCATION]
				var title = props[TRASHBIN_TITLE]
				return {
					displayName: props[FILENAME_PROP],
					mtime: parseInt(props[DELETION_TIME_PROP], 10) * 1000,
					hasPreview: true,
					path: path,
					extraData: title
				}
			})

			var result = OCA.Files.FileList.prototype.initialize.apply(this, arguments)
			this.$el.find('.undelete').click('click', _.bind(this._onClickRestoreSelected, this))

			// Sort by most recently deleted first
			this.setSort('mtime', 'desc')

			/**
			 * Override crumb making to add "Deleted Files" entry
			 * and convert files with ".d" extensions to a more
			 * user friendly name.
			 */
				this.breadcrumb._makeCrumbs = function() {
					var parts = OCA.Files.BreadCrumb.prototype._makeCrumbs.apply(this, [...arguments, 'icon-delete no-hover'])
					for (var i = 1; i < parts.length; i++) {
						parts[i].name = getDeletedFileName(parts[i].name)
					}
					return parts
				}

				OC.Plugins.attach('OCA.Trashbin.FileList', this)
				return result
			},

			/**
		 * Override to only return read permissions
		 */
			getDirectoryPermissions: function() {
				return OC.PERMISSION_READ | OC.PERMISSION_DELETE
			},

			_setCurrentDir: function(targetDir) {
				OCA.Files.FileList.prototype._setCurrentDir.apply(this, arguments)

				var baseDir = OC.basename(targetDir)
				if (baseDir !== '') {
					this.setPageTitle(getDeletedFileName(baseDir))
				}
			},

			_createRow: function() {
			// FIXME: MEGAHACK until we find a better solution
				var tr = OCA.Files.FileList.prototype._createRow.apply(this, arguments)
				tr.find('td.filesize').remove()
				return tr
			},

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

			setupUploadEvents: function() {
			// override and do nothing
			},

			linkTo: function(dir) {
				return OC.linkTo('files', 'index.php') + '?view=trashbin&dir=' + encodeURIComponent(dir).replace(/%2F/g, '/')
			},

			elementToFile: function($el) {
				var fileInfo = OCA.Files.FileList.prototype.elementToFile($el)
				if (this.getCurrentDirectory() === '/') {
					fileInfo.displayName = getDeletedFileName(fileInfo.name)
				}
				// no size available
				delete fileInfo.size
				return fileInfo
			},

			updateEmptyContent: function() {
				var exists = this.$fileList.find('tr:first').exists()
				this.$el.find('#emptycontent').toggleClass('hidden', exists)
				this.$el.find('#filestable th').toggleClass('hidden', !exists)
			},

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

			_onClickRestoreSelected: function(event) {
				event.preventDefault()
				var self = this
				var files = _.pluck(this.getSelectedFiles(), 'name')
				for (var i = 0; i < files.length; i++) {
					var tr = this.findFileEl(files[i])
					this.showFileBusyState(tr, true)
				}

				this.fileMultiSelectMenu.toggleLoading('restore', true)
				var restorePromises = files.map(function(file) {
					return self.client.move(OC.joinPaths('trash', self.getCurrentDirectory(), file), OC.joinPaths('restore', file), true)
						.then(
							function() {
								self._removeCallback([file])
							}
						)
				})
				return Promise.all(restorePromises).then(
					function() {
						self.fileMultiSelectMenu.toggleLoading('restore', false)
					},
					function() {
						OC.Notification.show(t('files_trashbin', 'Error while restoring files from trash bin'))
					}
				)
			},

			_onClickDeleteSelected: function(event) {
				event.preventDefault()
				var self = this
				var allFiles = this.$el.find('.select-all').is(':checked')
				var files = _.pluck(this.getSelectedFiles(), 'name')
				for (var i = 0; i < files.length; i++) {
					var tr = this.findFileEl(files[i])
					this.showFileBusyState(tr, true)
				}

				if (allFiles) {
					return this.client.remove(OC.joinPaths('trash', this.getCurrentDirectory()))
						.then(
							function() {
								self.hideMask()
								self.setFiles([])
							},
							function() {
								OC.Notification.show(t('files_trashbin', 'Error while emptying trash bin'))
							}
						)
				} else {
					this.fileMultiSelectMenu.toggleLoading('delete', true)
					var deletePromises = files.map(function(file) {
						return self.client.remove(OC.joinPaths('trash', self.getCurrentDirectory(), file))
							.then(
								function() {
									self._removeCallback([file])
								}
							)
					})
					return Promise.all(deletePromises).then(
						function() {
							self.fileMultiSelectMenu.toggleLoading('delete', false)
						},
						function() {
							OC.Notification.show(t('files_trashbin', 'Error while removing files from trash bin'))
						}
					)
				}
			},

			_onClickFile: function(event) {
				var mime = $(this).parent().parent().data('mime')
				if (mime !== 'httpd/unix-directory') {
					event.preventDefault()
				}
				return OCA.Files.FileList.prototype._onClickFile.apply(this, arguments)
			},

			generatePreviewUrl: function(urlSpec) {
				return OC.generateUrl('/apps/files_trashbin/preview?') + $.param(urlSpec)
			},

			getDownloadUrl: function() {
			// no downloads
				return '#'
			},

			getDefaultActionUrl: function() {
			// no default action
				return '#'
			},

			updateStorageStatistics: function() {
			// no op because the trashbin doesn't have
			// storage info like free space / used space
			},

			isSelectedDeletable: function() {
				return true
			},

			/**
		 * Returns list of webdav properties to request
		 */
			_getWebdavProperties: function() {
				return [FILENAME_PROP, DELETION_TIME_PROP, TRASHBIN_ORIGINAL_LOCATION, TRASHBIN_TITLE].concat(this.filesClient.getPropfindProperties())
			},

			/**
		 * Reloads the file list using ajax call
		 *
		 * @returns ajax call object
		 */
			reload: function() {
				this._selectedFiles = {}
				this._selectionSummary.clear()
				this.$el.find('.select-all').prop('checked', false)
				this.showMask()
				if (this._reloadCall) {
					this._reloadCall.abort()
				}
				this._reloadCall = this.client.getFolderContents(
					'trash/' + this.getCurrentDirectory(), {
						includeParent: false,
						properties: this._getWebdavProperties()
					}
				)
				var callBack = this.reloadCallback.bind(this)
				return this._reloadCall.then(callBack, callBack)
			},
			reloadCallback: function(status, result) {
				delete this._reloadCall
				this.hideMask()

				if (status === 401) {
					return false
				}

				// Firewall Blocked request?
				if (status === 403) {
				// Go home
					this.changeDirectory('/')
					OC.Notification.show(t('files', 'This operation is forbidden'))
					return false
				}

				// Did share service die or something else fail?
				if (status === 500) {
				// Go home
					this.changeDirectory('/')
					OC.Notification.show(t('files', 'This directory is unavailable, please check the logs or contact the administrator'))
					return false
				}

				if (status === 404) {
				// go back home
					this.changeDirectory('/')
					return false
				}
				// aborted ?
				if (status === 0) {
					return true
				}

				this.setFiles(result)
				return true
			}

		})

	OCA.Trashbin.FileList = FileList
})()