private async Task GetPlaylistItems(Action <PlaylistItemData, InsertStatus> callback, PlaylistData playlist)
{
var playlistItems = new List <PlaylistItemData>();
await foreach (var playlistItem in _youTubeApi.GetPlaylistItems(playlist.Id, RemovePlaylist))
{
playlistItems.Add(playlistItem);
var result = await _youTubeCleanupToolDbContextFactory.Create().UpsertPlaylistItem(playlistItem);
callback(playlistItem, result);
}
// Now we have to remove playlist items we didn't get back from the API - Otherwise if we delete + add items then we end up with duplicates
var originalPlaylistItems = await _youTubeCleanupToolDbContextFactory.Create().GetPlaylistItems(playlist.Id);
var playlistItemsHashSet = new HashSet <string>(playlistItems.Select(x => x.Id).ToList());
foreach (var playlistItem in originalPlaylistItems)
{
if (!playlistItemsHashSet.Contains(playlistItem.Id))
{
_youTubeCleanupToolDbContextFactory.Create().RemovePlaylistItem(playlistItem);
callback(playlistItem, InsertStatus.Deleted);
}
}
}
private async Task GetPlaylistItems(IYouTubeCleanupToolDbContext context, Func <IData, InsertStatus, CancellationToken, Task> callback, PlaylistData playlist, CancellationToken cancellationToken)
{
var playlistItems = new List <PlaylistItemData>();
await foreach (var playlistItem in _youTubeApi.GetPlaylistItems(playlist.Id, RemovePlaylist).WithCancellation(cancellationToken))
{
playlistItems.Add(playlistItem);
var result = await context.UpsertPlaylistItem(playlistItem);
await callback(playlistItem, result, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
}
// Now we have to remove playlist items we didn't get back from the API - Otherwise if we delete + add items then we end up with duplicates
var originalPlaylistItems = await context.GetPlaylistItems(playlist.Id);
var playlistItemsHashSet = new HashSet <string>(playlistItems.Select(x => x.Id).ToList());
foreach (var playlistItem in originalPlaylistItems)
{
if (!playlistItemsHashSet.Contains(playlistItem.Id))
{
context.RemovePlaylistItem(playlistItem);
await callback(playlistItem, InsertStatus.Deleted, cancellationToken);
cancellationToken.ThrowIfCancellationRequested();
}
}
}
public async Task GetPlaylistItemsForPlaylist(Action <PlaylistItemData, InsertStatus> callback, PlaylistData playlist)
{
await GetPlaylistItems(callback, playlist);
await _youTubeCleanupToolDbContextFactory.Create().SaveChangesAsync();
}
public async Task GetPlaylistItemsForPlaylist(Func <IData, InsertStatus, CancellationToken, Task> callback, PlaylistData playlist, CancellationToken cancellationToken)
{
var context = _youTubeCleanupToolDbContextFactory.Create();
await GetPlaylistItems(context, callback, playlist, cancellationToken);
await context.SaveChangesAsync(cancellationToken);
}