public void StartRebuild()
{
IsRebuilding = true;
State = MediaDBState.Loading;
Console.WriteLine($"[MediaDB] Starting media database rebuild!");
ScannerTokenSource?.Cancel();
ScannerTask?.Wait();
CloseDatabase();
DeleteDatabaseFile();
CreateDatabaseFile();
OpenDatabase();
IsRebuilding = false;
StartMediaScan();
}
//entry point for media scan
private void MediaScan(CancellationToken token)
{
State = MediaDBState.Scanning;
int scanRetryCount = 0;
//run media scan
while (State != MediaDBState.Ready && scanRetryCount < UserConfig.Instance.MediaScannerRetryCount)
{
try
{
MediaScanner.Scan(DBContext, token);
State = MediaDBState.Ready;
}
catch (Exception ex)
{
if (ex is TaskCanceledException || ex is OperationCanceledException)
{
Console.WriteLine("[MediaDB] Media scanner aborted!");
State = MediaDBState.Loading;
break;
}
else
{
Console.Error.WriteLine("[MediaDB] Media scanner failed!");
Console.Error.WriteLine(ex);
State = MediaDBState.Error;
scanRetryCount++;
}
}
}
//load playlists
try
{
LoadPlaylists(token);
}
catch (Exception ex)
{
if (ex is TaskCanceledException || ex is OperationCanceledException)
{
Console.WriteLine("[MediaDB] Playlist loading aborted!");
State = MediaDBState.Loading;
}
else
{
Console.Error.WriteLine("[MediaDB] Playlist loading failed!");
Console.Error.WriteLine(ex);
State = MediaDBState.Error;
}
}
//trim cache
try
{
MediaTranscoder.TrimCache();
}
catch (Exception ex)
{
Console.Error.WriteLine("[MediaDB] Media cache trim failed!");
}
//needed? safe?
IsRebuilding = false;
ScannerTask = null;
ScannerTokenSource = null;
}
