public async Task <bool> Handle(OnDisconnectCommand request, CancellationToken cancellationToken)
{
// Get User from Cache
CacheUser cacheUser = await _chatCacheModule.GetUserAsync(request.ConnectionId, cancellationToken);
if (cacheUser == null)
{
throw new Exception("User doesnt exist");
}
// Leave From Previous Room
if (cacheUser.ConnectedRoomId != null)
{
await _mediator.Send(
new LeaveFromRoomCommand()
{
ConnectionId = request.ConnectionId, DateTime = request.DateTime
},
cancellationToken);
}
// Logout
await _chatCacheModule.RemoveUserAsync(request.ConnectionId, cancellationToken);
// Publish
await _mediator.Publish(
new UserDisconnectedNotification()
{
ConnectionId = request.ConnectionId
}, cancellationToken);
return(await Task.FromResult(true));
}
public async Task <bool> Handle(LeaveFromRoomCommand request, CancellationToken cancellationToken)
{
// Get User from Cache
CacheUser cacheUser = await _chatCacheModule.GetUserAsync(request.ConnectionId, cancellationToken);
if (cacheUser == null)
{
throw new Exception("User doesnt exist. Please login");
}
// Set User's Room
if (cacheUser.ConnectedRoomId == null)
{
throw new Exception("User didnt join any room. Please join to a room");
}
var userLeftNotification = new UserLeftNotification()
{
NickName = cacheUser.NickName, RoomId = cacheUser.ConnectedRoomId, ConnectionId = request.ConnectionId
};
cacheUser.ConnectedRoomId = null;
await _chatCacheModule.SetUserAsync(cacheUser, cancellationToken);
// Publish
await _mediator.Publish(
userLeftNotification,
cancellationToken);
return(await Task.FromResult(true));
}
public async Task <CacheRoom> Handle(JoinToRoomCommand request, CancellationToken cancellationToken)
{
// Get User from Cache
CacheUser cacheUser = await _chatCacheModule.GetUserAsync(request.ConnectionId, cancellationToken);
if (cacheUser == null)
{
throw new Exception("User doesnt exist. Please login");
}
// Leave From Previous Room
if (cacheUser.ConnectedRoomId != null)
{
await _mediator.Send(
new LeaveFromRoomCommand()
{
ConnectionId = request.ConnectionId, DateTime = request.DateTime
},
cancellationToken);
}
// Update User's Room
cacheUser.ConnectedRoomId = request.RoomId;
await _chatCacheModule.SetUserAsync(cacheUser, cancellationToken);
// Publish
await _mediator.Publish(
new UserJoinedNotification()
{
NickName = cacheUser.NickName,
RoomId = cacheUser.ConnectedRoomId,
ConnectionId = request.ConnectionId
}
, cancellationToken);
// Get Room
return(await _chatCacheModule.GetRoomAsync(request.RoomId, cancellationToken));
}
public async Task <bool> Handle(SendMessageCommand request, CancellationToken cancellationToken)
{
// Get User from Cache
CacheUser cacheUser = await _chatCacheModule.GetUserAsync(request.ConnectionId, cancellationToken);
if (cacheUser == null)
{
throw new Exception("User doesnt exist. Please login");
}
// Get User's Room from Cache
if (cacheUser.ConnectedRoomId == null)
{
throw new Exception("User didnt join any room. Please join to a room");
}
CacheRoom cacheRoom = await _chatCacheModule.GetRoomAsync(cacheUser.ConnectedRoomId, cancellationToken);
// Set Room Message
CacheMessage cacheMessage = new CacheMessage()
{
Message = request.Message, DateTime = request.DateTime, SenderNickName = cacheUser.NickName
};
cacheRoom.Messages.Add(cacheMessage);
await _chatCacheModule.SetRoomAsync(cacheRoom, cancellationToken);
// Publish
await _mediator.Publish(
new ReceiveMessageNotification()
{
RoomId = cacheUser.ConnectedRoomId, ConnectionId = request.ConnectionId, CacheMessage = cacheMessage
},
cancellationToken);
return(await Task.FromResult(true));
}