public override void SessionLeaving(IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
// Save state if first event.
if (!InitialStateSet)
{
InitialState = prevState;
InitialStateSet = true;
}
context.SetBuffering(session, false);
if (!context.IsBuffering())
{
if (ResumePlaying)
{
_logger.LogDebug("Session {SessionId} left group {GroupId}, notifying others to resume.", session.Id, context.GroupId.ToString());
// Client, that was buffering, left the group.
var playingState = new PlayingGroupState(LoggerFactory);
context.SetState(playingState);
var unpauseRequest = new UnpauseGroupRequest();
playingState.HandleRequest(unpauseRequest, context, Type, session, cancellationToken);
}
else
{
_logger.LogDebug("Session {SessionId} left group {GroupId}, returning to previous state.", session.Id, context.GroupId.ToString());
// Group is ready, returning to previous state.
var pausedState = new PausedGroupState(LoggerFactory);
context.SetState(pausedState);
}
}
}
public override void HandleRequest(UnpauseGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
if (!prevState.Equals(Type))
{
// Pick a suitable time that accounts for latency.
var delayMillis = Math.Max(context.GetHighestPing() * 2, context.DefaultPing);
// Unpause group and set starting point in future.
// Clients will start playback at LastActivity (datetime) from PositionTicks (playback position).
// The added delay does not guarantee, of course, that the command will be received in time.
// Playback synchronization will mainly happen client side.
context.LastActivity = DateTime.UtcNow.AddMilliseconds(delayMillis);
var command = context.NewSyncPlayCommand(SendCommandType.Unpause);
context.SendCommand(session, SyncPlayBroadcastType.AllGroup, command, cancellationToken);
// Notify relevant state change event.
SendGroupStateUpdate(context, request, session, cancellationToken);
}
else
{
// Client got lost, sending current state.
var command = context.NewSyncPlayCommand(SendCommandType.Unpause);
context.SendCommand(session, SyncPlayBroadcastType.CurrentSession, command, cancellationToken);
}
}
public override void HandleRequest(UnpauseGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
// Change state.
var playingState = new PlayingGroupState(LoggerFactory);
context.SetState(playingState);
playingState.HandleRequest(request, context, Type, session, cancellationToken);
}
public ActionResult SyncPlayUnpause()
{
var currentSession = RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request);
var syncPlayRequest = new UnpauseGroupRequest();
_syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
return(NoContent());
}
public async Task <ActionResult> SyncPlayUnpause()
{
var currentSession = await RequestHelpers.GetSession(_sessionManager, _authorizationContext, Request).ConfigureAwait(false);
var syncPlayRequest = new UnpauseGroupRequest();
_syncPlayManager.HandleRequest(currentSession, syncPlayRequest, CancellationToken.None);
return(NoContent());
}
public override void HandleRequest(UnpauseGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
// Save state if first event.
if (!InitialStateSet)
{
InitialState = prevState;
InitialStateSet = true;
}
if (prevState.Equals(GroupStateType.Idle))
{
ResumePlaying = true;
context.RestartCurrentItem();
var playQueueUpdate = context.GetPlayQueueUpdate(PlayQueueUpdateReason.NewPlaylist);
var update = context.NewSyncPlayGroupUpdate(GroupUpdateType.PlayQueue, playQueueUpdate);
context.SendGroupUpdate(session, SyncPlayBroadcastType.AllGroup, update, cancellationToken);
// Reset status of sessions and await for all Ready events.
context.SetAllBuffering(true);
_logger.LogDebug("Group {GroupId} is waiting for all ready events.", context.GroupId.ToString());
}
else
{
if (ResumePlaying)
{
_logger.LogDebug("Forcing the playback to start in group {GroupId}. Group-wait is disabled until next state change.", context.GroupId.ToString());
// An Unpause request is forcing the playback to start, ignoring sessions that are not ready.
context.SetAllBuffering(false);
// Change state.
var playingState = new PlayingGroupState(LoggerFactory)
{
IgnoreBuffering = true
};
context.SetState(playingState);
playingState.HandleRequest(request, context, Type, session, cancellationToken);
}
else
{
// Group would have gone to paused state, now will go to playing state when ready.
ResumePlaying = true;
// Notify relevant state change event.
SendGroupStateUpdate(context, request, session, cancellationToken);
}
}
}
public override void HandleRequest(IgnoreWaitGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
context.SetIgnoreGroupWait(session, request.IgnoreWait);
if (!context.IsBuffering())
{
_logger.LogDebug("Ignoring session {SessionId}, group {GroupId} is ready.", session.Id, context.GroupId.ToString());
if (ResumePlaying)
{
// Client, that was buffering, stopped following playback.
var playingState = new PlayingGroupState(LoggerFactory);
context.SetState(playingState);
var unpauseRequest = new UnpauseGroupRequest();
playingState.HandleRequest(unpauseRequest, context, Type, session, cancellationToken);
}
else
{
// Group is ready, returning to previous state.
var pausedState = new PausedGroupState(LoggerFactory);
context.SetState(pausedState);
}
}
}
public virtual void HandleRequest(UnpauseGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
UnhandledRequest(request);
}
