public static Task <DiscordVoiceSession> JoinVoiceChannelAsync(this DiscordSocketClient client, VoiceStateProperties properties)
{
if (!properties.ChannelProperty.Set || !properties.ChannelId.HasValue)
{
throw new ArgumentNullException("ChannelId can not be null");
}
properties.Fill(client);
ulong guildId = properties.GuildId ?? 0;
if (client.VoiceSessions.TryGetValue(guildId, out var oldSession))
{
oldSession.Disconnect();
}
CancellationTokenSource source = new CancellationTokenSource();
TaskCompletionSource <DiscordVoiceSession> task = new TaskCompletionSource <DiscordVoiceSession>();
void serverHandler(DiscordMediaSession session, DiscordMediaServer server)
{
source.Cancel();
if (server.Endpoint != null)
{
session.OnServerUpdated -= serverHandler;
if (task.Task.Status != TaskStatus.Faulted)
{
task.SetResult((DiscordVoiceSession)session);
}
}
}
void stateHandler(DiscordSocketClient c, DiscordVoiceState state)
{
if (state.Channel != null && state.Channel.Id == properties.ChannelId.Value)
{
client.OnSessionVoiceState -= stateHandler;
DiscordVoiceSession session = client.VoiceSessions[guildId] = new DiscordVoiceSession(client, properties.GuildId, properties.ChannelId.Value, state.SessionId);
session.OnDisconnected += (s, args) => client.VoiceSessions.Remove(guildId);
session.OnServerUpdated += serverHandler;
}
}
client.OnSessionVoiceState += stateHandler;
client.ChangeVoiceState(properties);
if (client.Config.VoiceChannelConnectTimeout > 0)
{
Task.Run(async() =>
{
await Task.Delay(client.Config.VoiceChannelConnectTimeout, source.Token);
if (!source.IsCancellationRequested)
{
task.SetException(new TimeoutException("Gateway did not respond with a server"));
}
});
}
return(task.Task);
}
/// <summary>
/// Changes a client's voice state
/// </summary>
public static void ChangeVoiceState(this DiscordSocketClient client, VoiceStateProperties properties)
{
client.Send(GatewayOpcode.VoiceStateUpdate, properties.Fill(client));
}
