public bool Sync(Watcher watcher, bool updateThumbnails = true)
{
bool changed = false;
var filesInDir = DBHelpers.GetAllFileInfo(watcher);
if (filesInDir == null)
{
return(false);
}
// Remove files no longer in folder.
var toRemove = from file in GetAllFilesInWatcher(watcher).ToList()
where !filesInDir.ContainsKey(file.FullName)
select file;
changed |= toRemove.Any();
Files.RemoveRange(toRemove);
// Update updated files.
// Tuples returned are of the form (Modified Time, Created Time)
var toUpdate = from file in GetAllFilesInWatcher(watcher).ToList()
where filesInDir.ContainsKey(file.FullName) &&
(!filesInDir[file.FullName].Item1.Equals(file.FileModifiedTime) || !filesInDir[file.FullName].Item2.Equals(file.FileCreatedTime))
select file;
changed |= toUpdate.Any();
foreach (var file in toUpdate)
{
file.FileModifiedTime = filesInDir[file.FullName].Item1;
file.FileCreatedTime = filesInDir[file.FullName].Item2;
if (updateThumbnails)
{
file.Thumbnail = MaybeMakeThumbnail(new FileInfo(file.FullName), watcher);
}
updateXMPTagsFromFile(file);
}
// Add files that are new.
foreach (var file in GetAllFilesInWatcher(watcher))
{
filesInDir.Remove(file.FullName);
}
Console.WriteLine($"Adding {filesInDir.Count()} files during sync.");
var toAdd = from filename in filesInDir.Keys
select MakeFileModel(new FileInfo(filename), watcher);
changed |= toAdd.Any();
Files.AddRange(toAdd);
SaveChanges();
return(changed);
}
