public Group(
ILoggerFactory loggerFactory,
IUserManager userManager,
ISessionManager sessionManager,
ILibraryManager libraryManager)
{
_loggerFactory = loggerFactory;
_userManager = userManager;
_sessionManager = sessionManager;
_libraryManager = libraryManager;
_logger = loggerFactory.CreateLogger <Group>();
_state = new IdleGroupState(loggerFactory);
}
public override void HandleRequest(PreviousItemGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
// Save state if first event.
if (!InitialStateSet)
{
InitialState = prevState;
InitialStateSet = true;
}
ResumePlaying = true;
// Make sure the client knows the playing item, to avoid duplicate requests.
if (!request.PlaylistItemId.Equals(context.PlayQueue.GetPlayingItemPlaylistId()))
{
_logger.LogDebug("Session {SessionId} provided the wrong playlist item for group {GroupId}.", session.Id, context.GroupId.ToString());
return;
}
var newItem = context.PreviousItemInQueue();
if (newItem)
{
// Send playing-queue update.
var playQueueUpdate = context.GetPlayQueueUpdate(PlayQueueUpdateReason.PreviousItem);
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);
}
else
{
// Return to old state.
IGroupState newState = prevState switch
{
GroupStateType.Playing => new PlayingGroupState(LoggerFactory),
GroupStateType.Paused => new PausedGroupState(LoggerFactory),
_ => new IdleGroupState(LoggerFactory)
};
context.SetState(newState);
_logger.LogDebug("No previous item available in group {GroupId}.", context.GroupId.ToString());
}
}
public override void HandleRequest(PlayGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
// Save state if first event.
if (!InitialStateSet)
{
InitialState = prevState;
InitialStateSet = true;
}
ResumePlaying = true;
var setQueueStatus = context.SetPlayQueue(request.PlayingQueue, request.PlayingItemPosition, request.StartPositionTicks);
if (!setQueueStatus)
{
_logger.LogError("Unable to set playing queue in group {GroupId}.", context.GroupId.ToString());
// Ignore request and return to previous state.
IGroupState newState = prevState switch {
GroupStateType.Playing => new PlayingGroupState(LoggerFactory),
GroupStateType.Paused => new PausedGroupState(LoggerFactory),
_ => new IdleGroupState(LoggerFactory)
};
context.SetState(newState);
return;
}
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("Session {SessionId} set a new play queue in group {GroupId}.", session.Id, context.GroupId.ToString());
}
public override void HandleRequest(SetPlaylistItemGroupRequest request, IGroupStateContext context, GroupStateType prevState, SessionInfo session, CancellationToken cancellationToken)
{
// Save state if first event.
if (!InitialStateSet)
{
InitialState = prevState;
InitialStateSet = true;
}
ResumePlaying = true;
var result = context.SetPlayingItem(request.PlaylistItemId);
if (result)
{
var playQueueUpdate = context.GetPlayQueueUpdate(PlayQueueUpdateReason.SetCurrentItem);
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);
}
else
{
// Return to old state.
IGroupState newState = prevState switch
{
GroupStateType.Playing => new PlayingGroupState(LoggerFactory),
GroupStateType.Paused => new PausedGroupState(LoggerFactory),
_ => new IdleGroupState(LoggerFactory)
};
context.SetState(newState);
_logger.LogDebug("Unable to change current playing item in group {GroupId}.", context.GroupId.ToString());
}
}
public override void Apply(IGroupStateContext context, IGroupState state, SessionInfo session, CancellationToken cancellationToken)
{
state.HandleRequest(this, context, state.Type, session, cancellationToken);
}
public abstract void Apply(IGroupStateContext context, IGroupState state, SessionInfo session, CancellationToken cancellationToken);