// Read all of the files under a path into a list of MusicFolder class
static public MusicFolder EnumerateMusicFolder(string sDir, BackgroundWorker worker, DoWorkEventArgs e, Func <BackgroundWorker, DoWorkEventArgs, bool> checkForCancel)
{
List <MusicFile> musicFiles = null;
musicFiles = EnumerateFilesInPath(sDir, musicFiles, worker, e, checkForCancel);
MusicFolder musicFolder = new MusicFolder(sDir, musicFiles);
return(musicFolder);
}
// Begin the scan process widgets
static public string scanMusicFolder(string folderName, List <MusicFile> workingFiles, BackgroundWorker worker, DoWorkEventArgs e)
{
int addedCount = 0;
int deletedCount = 0;
FileInfo masterManifest = new FileInfo(Path.GetFullPath(folderName) + "\\" + Constants.ManifestFilename);
MusicFolder scannedMasterMusic = null;
MusicFolder manifestMasterMusic = null;
int percentComplete = 0;
// Scan the master folder and build a fresh list
Console.WriteLine("Scan the folder for music files....");
percentComplete = 20;
worker.ReportProgress(percentComplete, "Scan the folder for music files....");
scannedMasterMusic = FileUtils.EnumerateMusicFolder(folderName, worker, e, checkForCancel);
// If we have a previous manifest on the master folder, read it in
Console.WriteLine("Look for a manifest file in the folder....");
percentComplete = 40;
worker.ReportProgress(percentComplete, "Look for a manifest file in the folder....");
if (checkForCancel(worker, e))
{
return("Cancelled.");
}
if (masterManifest.Exists)
{
string json = File.ReadAllText(masterManifest.FullName);
manifestMasterMusic = Newtonsoft.Json.JsonConvert.DeserializeObject <MusicFolder>(json);
}
else
{
manifestMasterMusic = new MusicFolder(folderName, null);
string json = Newtonsoft.Json.JsonConvert.SerializeObject(scannedMasterMusic, Newtonsoft.Json.Formatting.Indented);
try
{
File.WriteAllText(masterManifest.FullName, json);
}
catch
{
MessageBoxResult result = MessageBox.Show(
"Could not write the manifest file to " + masterManifest.FullName,
"Cannot create music manifest",
MessageBoxButton.OK,
MessageBoxImage.Question);
}
}
// Go through all the recently scanned files to see if any are not in the disk list (new files)
Console.WriteLine("Chew through all the files we just scanned....");
percentComplete = 60;
worker.ReportProgress(percentComplete, "Chew through all the files we just scanned....");
foreach (MusicFile currentFile in scannedMasterMusic.musicFiles)
{
MusicFile searchFile = null;
worker.ReportProgress(percentComplete, "Process " + currentFile.fileName);
if (checkForCancel(worker, e))
{
return("Cancelled.");
}
if (manifestMasterMusic.musicFiles != null)
{
searchFile = manifestMasterMusic.musicFiles.Find(srch => srch.fileName == currentFile.fileName);
}
currentFile.isProcessed = true;
// If the file exists in the disk manifest, then we are good
if (searchFile != null)
{
searchFile.isProcessed = true;
currentFile.status = MusicFile.MusicFileStatus.Old;
searchFile.status = MusicFile.MusicFileStatus.Old;
}
else // Not in the disk manifest means a new file, add to our working list
{
MusicFile newFile = new MusicFile(currentFile.fileName);
currentFile.status = MusicFile.MusicFileStatus.New;
newFile.status = MusicFile.MusicFileStatus.New;
addedCount++;
workingFiles.Add(newFile);
}
}
// Now go through the disk list and mark any unprocessed as deleted from the master
Console.WriteLine("Now walk all the manifest files looking for deleted ones....");
percentComplete = 80;
worker.ReportProgress(percentComplete, "Now walk all the manifest files looking for deleted ones....");
if (manifestMasterMusic.musicFiles != null)
{
foreach (MusicFile currentFile in manifestMasterMusic.musicFiles)
{
worker.ReportProgress(percentComplete, "Scrub " + currentFile.fileName);
if (checkForCancel(worker, e))
{
return("Cancelled.");
}
if (currentFile.isProcessed == false)
{
currentFile.isProcessed = true;
MusicFile newFile = new MusicFile(currentFile.fileName);
currentFile.status = MusicFile.MusicFileStatus.Deleted;
newFile.status = MusicFile.MusicFileStatus.Deleted;
deletedCount++;
//workingFiles.Add(newFile);
}
}
}
Console.WriteLine("Scanning process is complete....");
percentComplete = 100;
worker.ReportProgress(percentComplete, "Scanning process is complete....");
return(manifestMasterMusic.musicFiles.Count + " files in library, " +
scannedMasterMusic.musicFiles.Count + " files scanned, " +
addedCount + " files added, " +
deletedCount + " files deleted, " +
workingFiles.Count + " files to process.");
}
private void asyncScanner_DoWork(object sender, DoWorkEventArgs e)
{
BackgroundWorker worker = sender as BackgroundWorker;
e.Result = MusicFolder.scanMusicFolder((string)e.Argument, workingList, worker, e);
}
