private void PerformDeltaUpdate(DateTime after)
{
_logger.Info($"Scanning changes after {after}");
var libraryPaths = _apiAdapter.GetTrackPaths().ToArray();
var paths = _trackRepository.GetCachedPaths().ToArray();
var missingPaths = paths.Except(libraryPaths).ToArray();
for (int i = 0; i < paths.Length; i++)
{
if (paths[i] == null)
{
_logger.Info(i + " was null");
}
}
if (missingPaths.Length > 0)
{
_trackRepository.RemoveAll(missingPaths);
_logger.Info($"Removed {missingPaths.Length} tracks from cache");
}
var delta = _apiAdapter.GetSyncDelta(paths, after);
_logger.Debug($"Delta contains {delta}");
_trackRepository.RemoveAll(delta.GetDeletedFiles());
_trackRepository.Insert(_apiAdapter.GetTracks(delta.GetNewFiles()));
_trackRepository.Update(_apiAdapter.GetTracks(delta.GetUpdatedFiles()));
_cacheInfoRepository.Update(new CacheInfo {
TracksUpdated = DateTime.Now
});
_logger.Info($"Cache contains {_trackRepository.Count()} tracks.");
_semaphore.Release();
}
private void BuildCache()
{
Semaphore.Wait();
Task.Factory.StartNew(() =>
{
_logger.Info("Scanning for the first time");
_trackRepository.AddAll(_apiAdapter.GetTracks());
_cacheInfoRepository.Update(new CacheInfo {
TracksUpdated = DateTime.Now
});
_logger.Info($"Cache contains {_trackRepository.Count()} tracks.");
Semaphore.Release();
}, TaskCreationOptions.PreferFairness);
}