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/**
* @copyright Copyright (c) 2020 Marco Ambrosini <marcoambrosini@pm.me>
*
* @author Marco Ambrosini <marcoambrosini@pm.me>
*
* @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/>.
*
*/
/**
* Returns the file extension for the given path
*
* @param {string} path path
* @return {string} file extension including the dot
*/
const getFileExtension = function(path) {
return path.match(/\.[0-9a-z]+$/i) ? path.match(/\.[0-9a-z]+$/i)[0] : ''
}
/**
* Checks the existence of a path in a folder and if a match is found, returns
* a unique path for that folder.
*
* @param {object} client The webdav client object
* @param {string} userRoot user root path
* @param {string} path The path whose existence in the destination is to
* be checked
* @return {string} The unique path
*/
const findUniquePath = async function(client, userRoot, path) {
// Return the input path if it doesn't exist in the destination folder
if (await client.exists(userRoot + path) === false) {
return path
}
// Get the file extension (if any)
const fileExtension = getFileExtension(path)
// If there's a file extention, remove it from the path string
if (fileExtension !== '') {
path = path.substring(0, path.length - fileExtension.length)
}
// Check if the path ends with ` (n)`
const suffix = path.match(/ \((\d+)\)$/) ? path.match(/ \((\d+)\)$/) : ''
// Initialise a pathwithout suffix variable
let pathWithoutSuffix = path
if (suffix !== '') {
// remove the suffix if any
pathWithoutSuffix = path.substring(0, path.length - suffix.length)
}
// Loop until a unique path is found
for (let number = 2; true; number++) {
const uniquePath = pathWithoutSuffix + ` (${number})` + (fileExtension)
if (await client.exists(userRoot + uniquePath) === false) {
return uniquePath
}
}
}
export {
findUniquePath,
getFileExtension,
}
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