/// <summary>
/// checks all files in a directory tree for size (and optionally name) equality
/// </summary>
/// <param name="pfad">root folder of directory tree</param>
/// <param name="modus">comparison type</param>
/// <returns>a list of possible duplicates</returns>
public IEnumerable <IDublette> Sammle_Kandidaten(string pfad, Vergleichsmodi modus)
{
var files = Directory.GetFiles(pfad, "*", System.IO.SearchOption.AllDirectories).Select(t => new FileInfo(t)).ToList();
List <Dublette> dubletten = new List <Dublette>();
int counter = 0;
files.ForEach(file =>
{
IEnumerable <FileInfo> targetFiles;
switch (modus)
{
case Vergleichsmodi.Größe_und_Name:
targetFiles = files.Where(t => t.Name == file.Name && t.Length == file.Length);
break;
case Vergleichsmodi.Größe:
targetFiles = files.Where(t => t.Length == file.Length);
break;
default:
throw new NotImplementedException();
}
//check if any target files were found AND first target file does not belong to any set (if it does, all target files do)
if (targetFiles.Any() && !dubletten.SelectMany(t => t.Fileinfos).Any(t => t.FullName == targetFiles.FirstOrDefault().FullName))
{
dubletten.Add(new Dublette(targetFiles.Select(t => t.FullName)));
}
counter++;
this.ProgressReport?.Invoke(this, $"Candidate check finished (file {counter} of {files.Count})");
});
return(dubletten);
}
public IEnumerable <IDublette> Sammle_Kandidaten(string pfad, Vergleichsmodi modus)
{
throw new NotImplementedException();
}