/// <summary>
/// Updates the database with the information for the specified playlist.
/// </summary>
/// <param name="playlist">A <see cref="MediaPlaylist" /> object that represents the playlist to be updated and the updated information for the playlist.</param>
/// <param name="cancellationToken">A token to observe while waiting for the task to complete.</param>
/// <returns>
/// A task that represents the asynchronous operation.
/// </returns>
/// <exception cref="System.ArgumentNullException"></exception>
public async Task UpdateAsync(MediaPlaylist playlist, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (playlist == null)
{
throw new ArgumentNullException(nameof(playlist));
}
if (playlist.DefaultList)
{
await SetDefaultAsync(playlist, cancellationToken);
}
_context.Update(playlist);
}
/// <summary>
/// Sets the specified playlist as default playlist.
/// </summary>
/// <param name="playlist">A <see cref="MediaPlaylist" /> object that represents the playlist to be updated and the updated information for the playlist.</param>
/// <param name="cancellationToken">A token to observe while waiting for the task to complete.</param>
/// <returns>
/// A task that represents the asynchronous operation.
/// </returns>
public async Task SetDefaultAsync(MediaPlaylist playlist, CancellationToken cancellationToken)
{
cancellationToken.ThrowIfCancellationRequested();
if (playlist == null)
{
throw new ArgumentNullException(nameof(playlist));
}
var defaultPlaylist = await FindDefaultByContactAsync(playlist.ContactId, cancellationToken);
if (defaultPlaylist != null)
{
defaultPlaylist.DefaultList = false;
}
playlist.DefaultList = true;
}
