public static FileInfo[] GetBackupsFor(CharacterFile file)
{
var characterName = Path.GetFileNameWithoutExtension(file.FilePath);
return(CharacterBackupDir.EnumerateFiles("*.fch")
.Select(f => (file: f, regex: Regex.Match(f.Name, @"^(.*)-backup-\d+\.fch")))
.Where(pair => pair.regex.Success && pair.regex.Groups[1].Value == characterName)
.Select(pair => pair.file)
.ToArray());
}
public static void BackupCharacter(CharacterFile source)
{
CharacterBackupDir.Create();
int latestBackupNumber =
CharacterBackupDir.EnumerateFiles()
.Select(f => f.Name)
.Select(fileName => Regex.Match(fileName, @"^.*-backup-(\d+)\.fch$"))
.Where(match => match.Success)
.Select(match =>
int.Parse(match.Groups[1].Value))
.DefaultIfEmpty().Max();
string charFilename = Path.GetFileNameWithoutExtension(source.FilePath);
string backupFilename = $"{charFilename}-backup-{latestBackupNumber + 1}.fch";
string backupFilePath = Path.Join(CharacterBackupDir.FullName, backupFilename);
File.Copy(source.FilePath, backupFilePath);
}
public Backups([NotNull] CharacterFile currentFile)
{
_currentFile = currentFile ?? throw new ArgumentNullException(nameof(currentFile));
InitializeComponent();
}