/* eslint-disable */
/*
 * Copyright (c) 2014 Vincent Petry <pvince81@owncloud.com>
 *
 * This file is licensed under the Affero General Public License version 3
 * or later.
 *
 * See the COPYING-README file.
 *
 */
(function() {

	/**
	 * @class OCA.Sharing.FileList
	 * @augments OCA.Files.FileList
	 *
	 * @classdesc Sharing file list.
	 * Contains both "shared with others" and "shared with you" modes.
	 *
	 * @param $el container element with existing markup for the #controls
	 * and a table
	 * @param [options] map of options, see other parameters
	 * @param {boolean} [options.sharedWithUser] true to return files shared with
	 * the current user, false to return files that the user shared with others.
	 * Defaults to false.
	 * @param {boolean} [options.linksOnly] true to return only link shares
	 */
	var FileList = function($el, options) {
		this.initialize($el, options)
	}
	FileList.prototype = _.extend({}, OCA.Files.FileList.prototype,
		/** @lends OCA.Sharing.FileList.prototype */ {
			appName: 'Shares',

			/**
		 * Whether the list shows the files shared with the user (true) or
		 * the files that the user shared with others (false).
		 */
			_sharedWithUser: false,
			_linksOnly: false,
			_showDeleted: false,
			_showPending: false,
			_clientSideSort: true,
			_allowSelection: false,
			_isOverview: false,

			/**
		 * @private
		 */
			initialize: function($el, options) {
				OCA.Files.FileList.prototype.initialize.apply(this, arguments)
				if (this.initialized) {
					return
				}

				// TODO: consolidate both options
				if (options && options.sharedWithUser) {
					this._sharedWithUser = true
				}
				if (options && options.linksOnly) {
					this._linksOnly = true
				}
				if (options && options.showDeleted) {
					this._showDeleted = true
				}
				if (options && options.showPending) {
					this._showPending = true
				}
				if (options && options.isOverview) {
					this._isOverview = true
				}
			},

			_renderRow: function() {
			// HACK: needed to call the overridden _renderRow
			// this is because at the time this class is created
			// the overriding hasn't been done yet...
				return OCA.Files.FileList.prototype._renderRow.apply(this, arguments)
			},

			_createRow: function(fileData) {
			// TODO: hook earlier and render the whole row here
				var $tr = OCA.Files.FileList.prototype._createRow.apply(this, arguments)
				$tr.find('.filesize').remove()
				$tr.find('td.date').before($tr.children('td:first'))
				$tr.find('td.filename input:checkbox').remove()
				$tr.attr('data-share-id', _.pluck(fileData.shares, 'id').join(','))
				if (this._sharedWithUser) {
					$tr.attr('data-share-owner', fileData.shareOwner)
					$tr.attr('data-mounttype', 'shared-root')
					var permission = parseInt($tr.attr('data-permissions')) | OC.PERMISSION_DELETE
					$tr.attr('data-permissions', permission)
				}
				if (this._showDeleted || this._showPending) {
					var permission = fileData.permissions
					$tr.attr('data-share-permissions', permission)
				}

				if (fileData.remoteId) {
					$tr.attr('data-remote-id', fileData.remoteId)
				}

				if (fileData.shareType) {
					$tr.attr('data-share-type', fileData.shareType)
				}

				// add row with expiration date for link only shares - influenced by _createRow of filelist
				if (this._linksOnly) {
					var expirationTimestamp = 0
					if (fileData.shares && fileData.shares[0].expiration !== null) {
						expirationTimestamp = moment(fileData.shares[0].expiration).valueOf()
					}
					$tr.attr('data-expiration', expirationTimestamp)

					// date column (1000 milliseconds to seconds, 60 seconds, 60 minutes, 24 hours)
					// difference in days multiplied by 5 - brightest shade for expiry dates in more than 32 days (160/5)
					var modifiedColor = Math.round((expirationTimestamp - (new Date()).getTime()) / 1000 / 60 / 60 / 24 * 5)
					// ensure that the brightest color is still readable
					if (modifiedColor >= 160) {
						modifiedColor = 160
					}

					var formatted
					var text
					if (expirationTimestamp > 0) {
						formatted = OC.Util.formatDate(expirationTimestamp)
						text = OC.Util.relativeModifiedDate(expirationTimestamp)
					} else {
						formatted = t('files_sharing', 'No expiration date set')
						text = ''
						modifiedColor = 160
					}
					td = $('<td></td>').attr({ 'class': 'date' })
					td.append($('<span></span>').attr({
						'class': 'modified',
						'title': formatted,
						'style': 'color:rgb(' + modifiedColor + ',' + modifiedColor + ',' + modifiedColor + ')'
					}).text(text)
						.tooltip({ placement: 'top' })
					)

					$tr.append(td)
				}
				return $tr
			},

			/**
		 * Set whether the list should contain outgoing shares
		 * or incoming shares.
		 *
		 * @param state true for incoming shares, false otherwise
		 */
			setSharedWithUser: function(state) {
				this._sharedWithUser = !!state
			},

			updateEmptyContent: function() {
				var dir = this.getCurrentDirectory()
				if (dir === '/') {
				// root has special permissions
					this.$el.find('#emptycontent').toggleClass('hidden', !this.isEmpty)
					this.$el.find('#filestable thead th').toggleClass('hidden', this.isEmpty)

					// hide expiration date header for non link only shares
					if (!this._linksOnly) {
						this.$el.find('th.column-expiration').addClass('hidden')
					}
				} else {
					OCA.Files.FileList.prototype.updateEmptyContent.apply(this, arguments)
				}
			},

			getDirectoryPermissions: function() {
				return OC.PERMISSION_READ | OC.PERMISSION_DELETE
			},

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

			reload: function() {
				this.showMask()
				if (this._reloadCall) {
					this._reloadCall.abort()
				}

				// there is only root
				this._setCurrentDir('/', false)

				var promises = []

				var deletedShares = {
					url: OC.linkToOCS('apps/files_sharing/api/v1', 2) + 'deletedshares',
					/* jshint camelcase: false */
					data: {
						format: 'json',
						include_tags: true
					},
					type: 'GET',
					beforeSend: function(xhr) {
						xhr.setRequestHeader('OCS-APIREQUEST', 'true')
					}
				}

				var pendingShares = {
					url: OC.linkToOCS('apps/files_sharing/api/v1/shares', 2) + 'pending',
					/* jshint camelcase: false */
					data: {
						format: 'json'
					},
					type: 'GET',
					beforeSend: function(xhr) {
						xhr.setRequestHeader('OCS-APIREQUEST', 'true')
					}
				}

				var pendingRemoteShares = {
					url: OC.linkToOCS('apps/files_sharing/api/v1/remote_shares', 2) + 'pending',
					/* jshint camelcase: false */
					data: {
						format: 'json'
					},
					type: 'GET',
					beforeSend: function(xhr) {
						xhr.setRequestHeader('OCS-APIREQUEST', 'true')
					}
				}

				var shares = {
					url: OC.linkToOCS('apps/files_sharing/api/v1') + 'shares',
					/* jshint camelcase: false */
					data: {
						format: 'json',
						shared_with_me: this._sharedWithUser !== false,
						include_tags: true
					},
					type: 'GET',
					beforeSend: function(xhr) {
						xhr.setRequestHeader('OCS-APIREQUEST', 'true')
					}
				}

				var remoteShares = {
					url: OC.linkToOCS('apps/files_sharing/api/v1') + 'remote_shares',
					/* jshint camelcase: false */
					data: {
						format: 'json',
						include_tags: true
					},
					type: 'GET',
					beforeSend: function(xhr) {
						xhr.setRequestHeader('OCS-APIREQUEST', 'true')
					}
				}

				// Add the proper ajax requests to the list and run them
				// and make sure we have 2 promises
				if (this._showDeleted) {
					promises.push($.ajax(deletedShares))
				} else if (this._showPending) {
					promises.push($.ajax(pendingShares))
					promises.push($.ajax(pendingRemoteShares))
				} else {
					promises.push($.ajax(shares))

					if (this._sharedWithUser !== false || this._isOverview) {
						promises.push($.ajax(remoteShares))
					}
					if (this._isOverview) {
						shares.data.shared_with_me = !shares.data.shared_with_me
						promises.push($.ajax(shares))
					}
				}

				this._reloadCall = $.when.apply($, promises)
				var callBack = this.reloadCallback.bind(this)
				return this._reloadCall.then(callBack, callBack)
			},

			reloadCallback: function(shares, remoteShares, additionalShares) {
				delete this._reloadCall
				this.hideMask()

				this.$el.find('#headerSharedWith').text(
					t('files_sharing', this._sharedWithUser ? 'Shared by' : 'Shared with')
				)

				var files = []

				// make sure to use the same format
				if (shares[0] && shares[0].ocs) {
					shares = shares[0]
				}
				if (remoteShares && remoteShares[0] && remoteShares[0].ocs) {
					remoteShares = remoteShares[0]
				}
				if (additionalShares && additionalShares[0] && additionalShares[0].ocs) {
					additionalShares = additionalShares[0]
				}

				if (shares.ocs && shares.ocs.data) {
					files = files.concat(this._makeFilesFromShares(shares.ocs.data, this._sharedWithUser))
				}

				if (remoteShares && remoteShares.ocs && remoteShares.ocs.data) {
					files = files.concat(this._makeFilesFromRemoteShares(remoteShares.ocs.data))
				}

				if (additionalShares && additionalShares.ocs && additionalShares.ocs.data) {
					if (this._showPending) {
						// in this case the second callback is about pending remote shares
						files = files.concat(this._makeFilesFromRemoteShares(additionalShares.ocs.data))
					} else {
						files = files.concat(this._makeFilesFromShares(additionalShares.ocs.data, !this._sharedWithUser))
					}
				}

				this.setFiles(files)
				return true
			},

			_makeFilesFromRemoteShares: function(data) {
				var files = data

				files = _.chain(files)
				// convert share data to file data
					.map(function(share) {
						var file = {
							shareOwner: share.owner + '@' + share.remote.replace(/.*?:\/\//g, ''),
							name: OC.basename(share.mountpoint),
							mtime: share.mtime * 1000,
							mimetype: share.mimetype,
							type: share.type,
							// remote share types are different and need to be mapped
							shareType: (parseInt(share.share_type, 10) === 1) ? OC.Share.SHARE_TYPE_REMOTE_GROUP : OC.Share.SHARE_TYPE_REMOTE,
							id: share.file_id,
							path: OC.dirname(share.mountpoint),
							permissions: share.permissions,
							tags: share.tags || []
						}

						if (share.remote_id) {
							// remote share
							if (share.accepted !== '1') {
								file.name = OC.basename(share.name)
								file.path = '/'
							}
							file.remoteId = share.remote_id
							file.shareOwnerId = share.owner
						}

						if (!file.mimetype) {
							// pending shares usually have no type, so default to showing a directory icon
							file.mimetype = 'dir-shared'
						}

						file.shares = [{
							id: share.id,
							type: OC.Share.SHARE_TYPE_REMOTE
						}]
						return file
					})
					.value()
				return files
			},

			/**
		 * Converts the OCS API share response data to a file info
		 * list
		 * @param {Array} data OCS API share array
		 * @param {boolean} sharedWithUser
		 * @returns {Array.<OCA.Sharing.SharedFileInfo>} array of shared file info
		 */
			_makeFilesFromShares: function(data, sharedWithUser) {
			/* jshint camelcase: false */
				var files = data

				if (this._linksOnly) {
					files = _.filter(data, function(share) {
						return share.share_type === OC.Share.SHARE_TYPE_LINK
					})
				}

				// OCS API uses non-camelcased names
				files = _.chain(files)
				// convert share data to file data
					.map(function(share) {
					// TODO: use OC.Files.FileInfo
						var file = {
							id: share.file_source,
							icon: OC.MimeType.getIconUrl(share.mimetype),
							mimetype: share.mimetype,
							hasPreview: share.has_preview,
							tags: share.tags || []
						}
						if (share.item_type === 'folder') {
							file.type = 'dir'
							file.mimetype = 'httpd/unix-directory'
						} else {
							file.type = 'file'
						}
						file.share = {
							id: share.id,
							type: share.share_type,
							target: share.share_with,
							stime: share.stime * 1000,
							expiration: share.expiration
						}
						if (sharedWithUser) {
							file.shareOwner = share.displayname_owner
							file.shareOwnerId = share.uid_owner
							file.name = OC.basename(share.file_target)
							file.path = OC.dirname(share.file_target)
							file.permissions = share.permissions
							if (file.path) {
								file.extraData = share.file_target
							}
						} else {
							if (share.share_type !== OC.Share.SHARE_TYPE_LINK) {
								file.share.targetDisplayName = share.share_with_displayname
								file.share.targetShareWithId = share.share_with
							}
							file.name = OC.basename(share.path)
							file.path = OC.dirname(share.path)
							file.permissions = OC.PERMISSION_ALL
							if (file.path) {
								file.extraData = share.path
							}
						}
						return file
					})
				// Group all files and have a "shares" array with
				// the share info for each file.
				//
				// This uses a hash memo to cumulate share information
				// inside the same file object (by file id).
					.reduce(function(memo, file) {
						var data = memo[file.id]
						var recipient = file.share.targetDisplayName
						var recipientId = file.share.targetShareWithId
						if (!data) {
							data = memo[file.id] = file
							data.shares = [file.share]
							// using a hash to make them unique,
							// this is only a list to be displayed
							data.recipients = {}
							data.recipientData = {}
							// share types
							data.shareTypes = {}
							// counter is cheaper than calling _.keys().length
							data.recipientsCount = 0
							data.mtime = file.share.stime
						} else {
						// always take the most recent stime
							if (file.share.stime > data.mtime) {
								data.mtime = file.share.stime
							}
							data.shares.push(file.share)
						}

						if (recipient) {
						// limit counterparts for output
							if (data.recipientsCount < 4) {
							// only store the first ones, they will be the only ones
							// displayed
								data.recipients[recipient] = true
								data.recipientData[data.recipientsCount] = {
									'shareWith': recipientId,
									'shareWithDisplayName': recipient
								}
							}
							data.recipientsCount++
						}

						data.shareTypes[file.share.type] = true

						delete file.share
						return memo
					}, {})
				// Retrieve only the values of the returned hash
					.values()
				// Clean up
					.each(function(data) {
					// convert the recipients map to a flat
					// array of sorted names
						data.mountType = 'shared'
						delete data.recipientsCount
						if (sharedWithUser) {
						// only for outgoing shares
							delete data.shareTypes
						} else {
							data.shareTypes = _.keys(data.shareTypes)
						}
					})
				// Finish the chain by getting the result
					.value()

				// Sort by expected sort comparator
				return files.sort(this._sortComparator)
			}
		})

	/**
	 * Share info attributes.
	 *
	 * @typedef {Object} OCA.Sharing.ShareInfo
	 *
	 * @property {number} id share ID
	 * @property {number} type share type
	 * @property {String} target share target, either user name or group name
	 * @property {number} stime share timestamp in milliseconds
	 * @property {String} [targetDisplayName] display name of the recipient
	 * (only when shared with others)
	 * @property {String} [targetShareWithId] id of the recipient
	 *
	 */

	/**
	 * Recipient attributes
	 *
	 * @typedef {Object} OCA.Sharing.RecipientInfo
	 * @property {String} shareWith the id of the recipient
	 * @property {String} shareWithDisplayName the display name of the recipient
	 */

	/**
	 * Shared file info attributes.
	 *
	 * @typedef {OCA.Files.FileInfo} OCA.Sharing.SharedFileInfo
	 *
	 * @property {Array.<OCA.Sharing.ShareInfo>} shares array of shares for
	 * this file
	 * @property {number} mtime most recent share time (if multiple shares)
	 * @property {String} shareOwner name of the share owner
	 * @property {Array.<String>} recipients name of the first 4 recipients
	 * (this is mostly for display purposes)
	 * @property {Object.<OCA.Sharing.RecipientInfo>} recipientData (as object for easier
	 * passing to HTML data attributes with jQuery)
	 */

	OCA.Sharing.FileList = FileList
})()
