public void ScanFolder(string path, string[] fileExtensions, bool includeSubdirectories = true, bool clearDatabase = false, bool resetDatabase = false)
{
ScanComplete = false;
ScanStart = DateTime.Now;
MySQLContext databaseContext = null;
LastScan = DateTime.Parse("1/1/1990");
DirectoriesProcessed = 0;
DirectoriesSkipped = 0;
FilesProcessed = 0;
FilesSkipped = 0;
try
{
if (Directory.Exists(path))
{
if (resetDatabase)
{
Logger.Info("Resetting database...");
using (MySQLContext db = new MySQLContext(Logger))
{
db.DropTablesIfExist();
}
Globals.TablesChecked = false;
}
else if (clearDatabase)
{
Logger.Info("Clearing database...");
using (MySQLContext db = new MySQLContext(Logger))
{
db.MediaFiles.Clear();
db.Albums.Clear();
db.Scans.Clear();
db.SaveChanges();
}
}
Logger.Info("Getting last scan date...");
using (MySQLContext db = new MySQLContext(Logger))
{
if (db.Scans.Any(s => s.FolderPath == path))
{
LastScan = db.Scans.Where(s => s.FolderPath == path).Select(s => s.LastScanned).Max();
}
try
{
var scanData = new Repository.Scan(Logger, path);
scanData.AddOrUpdate();
}
catch (Exception scanEx)
{
Logger.Fatal($"There was an error updating the last scan information. Error: {scanEx.Message}", scanEx);
}
}
Logger.Info("Beginning loading directories...");
ScanDirectory(path, fileExtensions, includeSubdirectories);
Logger.Info($"Loaded {ScanActions.Count()} files and directories.");
Logger.Info("Beginning scanning files and directories.");
while (ScanActionsRetry.Any() || ScanActions.Any())
{
if (!string.IsNullOrEmpty(ParallelThreads))
{
Logger.Info($"Running with maximum number of threads: {ParallelThreads}.");
var scanOptions = new ParallelOptions {
MaxDegreeOfParallelism = int.Parse(ParallelThreads)
};
Parallel.Invoke(scanOptions, ScanActions.ToArray());
}
else
{
Parallel.Invoke(ScanActions.ToArray());
}
ScanActions.Clear();
if (ScanActionsRetry.Any())
{
Logger.Info($"Processes to retry: {ScanActionsRetry.Count()}. Re-running errored processes.");
ScanActions.Clear();
ScanActions.AddRange(ScanActionsRetry);
ScanActionsRetry = new ConcurrentBag <Action>();
}
}
Logger.Info($"Scanned {FilesProcessed} files, skipped {FilesSkipped} files.");
Logger.Info($"Scanned {DirectoriesProcessed} albums, skipped {DirectoriesSkipped} directories.");
Logger.Info($"Encountered {Errors.Count} errors.");
Logger.Info($"Cleaning up database...");
using (var db = new MySQLContext(Logger))
{
foreach (var album in db.Albums.Where(a => a.LastScanned < LastScan))
{
if (Directory.Exists(album.FolderPath))
{
album.LastScanned = LastScan;
}
else
{
db.Albums.Remove(album);
}
}
db.SaveChanges();
foreach (var mp3File in db.MediaFiles.Where(f => f.LastScanned < LastScan))
{
if (File.Exists(mp3File.FilePath))
{
mp3File.LastScanned = LastScan;
}
else
{
db.MediaFiles.Remove(mp3File);
}
}
db.SaveChanges();
}
foreach (var error in Errors)
{
Logger.Info($"File: {error.FilePath}; Error: {error.Details}");
}
}
else
{
throw new Exception($"Directory '{path}' does not exist.");
}
}
catch (Exception ex)
{
Logger.Error($"Error scanning files: {path}", ex);
Errors.Add(new FileError(ex, path, "Error scanning files."));
}
ScanEnd = DateTime.Now;
ScanComplete = true;
if (databaseContext != null)
{
try
{
databaseContext.Dispose();
}
catch
{
}
finally
{
databaseContext = null;
}
}
}