/// <summary> /// Triggers the <see cref="InactivePlayer"/> event asynchronously. /// </summary> /// <param name="eventArgs">the event arguments</param> /// <returns>a task that represents the asynchronous operation</returns> protected virtual Task OnInactivePlayerAsync(InactivePlayerEventArgs eventArgs) => InactivePlayer.InvokeAsync(this, eventArgs);
/// <summary>
/// Force polls tracking of all inactive players asynchronously.
/// </summary>
/// <returns>a task that represents the asynchronous operation</returns>
/// <exception cref="ObjectDisposedException">thrown if the instance is disposed</exception>
public virtual async Task PollAsync()
{
EnsureNotDisposed();
// get all created player instances in the audio service
var players = _audioService.GetPlayers <LavalinkPlayer>();
// iterate through players that are connected to a voice channel
foreach (var player in players.Where(s => s.VoiceChannelId.HasValue))
{
// check if the player is inactive
if (await IsInactiveAsync(player))
{
// add the player to tracking list
if (!_players.ContainsKey(player.GuildId))
{
// mark as tracked
_players.Add(player.GuildId, DateTimeOffset.UtcNow + _options.DisconnectDelay);
_logger.Log(this, string.Format("Tracked player {0} as inactive.", player.GuildId), LogLevel.Debug);
// trigger event
await OnPlayerTrackingStatusUpdated(new PlayerTrackingStatusUpdateEventArgs(_audioService,
player, InactivityTrackingStatus.Tracked));
}
}
else
{
// the player is active again, remove from tracking list
if (_players.Remove(player.GuildId))
{
_logger.Log(this, string.Format("Removed player {0} from tracking list.", player.GuildId), LogLevel.Debug);
// remove from tracking list
await UntrackPlayerAsync(player);
}
}
}
// remove all inactive, tracked players where the disconnect delay was exceeded
foreach (var player in _players.ToArray())
{
// check if player is inactive and the delay was exceeded
if (player.Value < DateTimeOffset.UtcNow)
{
var trackedPlayer = _audioService.GetPlayer <LavalinkPlayer>(player.Key);
// player does not exists, remove it from the tracking list and continue.
if (trackedPlayer is null)
{
// remove from tracking list
await UntrackPlayerAsync(trackedPlayer);
continue;
}
// trigger event
var eventArgs = new InactivePlayerEventArgs(_audioService, trackedPlayer);
await OnInactivePlayerAsync(eventArgs);
// it is wanted that the player should not stop.
if (!eventArgs.ShouldStop)
{
continue;
}
_logger.Log(this, string.Format("Destroyed player {0} due inactivity.", player.Key), LogLevel.Debug);
// dispose the player
trackedPlayer.Dispose();
// remove from tracking list
await UntrackPlayerAsync(trackedPlayer);
}
}
}