public static func getUniqueFileName(name: String, postfix: Int = 1, project: Project, ext: String) -> URL {

var defaultName = UUID().uuidString

if let naming = SettingsFilesNaming(rawValue: UserDefaultsManagement.naming.rawValue) {

defaultName = naming.getName()

}

var postfix = postfix

var name = name

.trimmingCharacters(in: CharacterSet.whitespaces)

.replacingOccurrences(of: ":", with: "")

.replacingOccurrences(of: "/", with: "")

if name.isEmpty {

name = defaultName

}

var fileUrl = project.url

fileUrl.appendPathComponent(name + "." + ext, isDirectory: false)

let fileManager = FileManager.default

if fileManager.fileExists(atPath: fileUrl.path) {

let regex = try? NSRegularExpression(pattern: "(.+)\\s(\\d)+$", options: .caseInsensitive)

if let result = regex?.firstMatch(in: name, range: NSRange(0..<name.count)) {

if let range = Range(result.range(at: 1), in: name) {

name = String(name[range])

}

if let range = Range(result.range(at: 2), in: name) {

let digit = name[range]

if let converted = Int(digit) {

postfix = converted

}

}

}

let increment = postfix + 1

let newName = name + " " + String(increment)

return NameHelper.getUniqueFileName(name: newName, postfix: increment, project: project, ext: ext)

}

return fileUrl

}

public static func generateCopy(file: URL, dstDir: URL? = nil, number: Int = 1) -> URL {

let dst = dstDir ?? file.deletingLastPathComponent()

let ext = file.pathExtension

var name = file.deletingPathExtension().lastPathComponent

let regex = try? NSRegularExpression(pattern: "(.+)\\s(?:Copy\\s)+(?:\\d)+$", options: .caseInsensitive)

if let result = regex?.firstMatch(in: name, range: NSRange(0..<name.count)) {

if let range = Range(result.range(at: 1), in: name) {

name = String(name[range])

}

}

var endName = name

if !endName.hasSuffix(" Copy") {

endName += " Copy"

}

if number > 1 {

endName += " " + String(number)

}

let newDst = dst.appendingPathComponent(endName + "." + ext, isDirectory: false)

if !FileManager.default.fileExists(atPath: newDst.path) {

return newDst

}

return generateCopy(file: file, dstDir: dst, number: number + 1)

}