public async Task SendMessage(string group, string message)
{
if (string.IsNullOrWhiteSpace(message))
{
return;
}
// todo there is a corner case with only 1 player where the end will not end by answering the right answer
// the reason is that the round is over but the detection logic does not catch that
try
{
// get username
GroupDetails.TryGetUsername(group, Context.ConnectionId, out string username);
// check if we are in a round, and if so then check if this is a valid guess
GroupDetails.TryGetInRound(group, out bool inround, out bool atendofround, out RoundDetails round);
if (inround && round != null)
{
// check if this guess is currect
if (message.IndexOf(round.Word, StringComparison.OrdinalIgnoreCase) >= 0)
{
// cannot guess for your own question or if you have already gotten it right
if (!atendofround)
{
if (GroupDetails.TryGetHasAnswered(group, Context.ConnectionId, out bool answered) && !answered)
{
// give credit
GroupDetails.AddToScore(group, Context.ConnectionId, (float)(round.End - DateTime.UtcNow).TotalSeconds);
// mark that you answered
GroupDetails.SetHasAnswered(group, Context.ConnectionId);
}
// check again
GroupDetails.TryGetInRound(group, out inround, out atendofround, out round);
}
// remove the correct word from the phrase
message = message.Replace(round.Word, "correct :)", StringComparison.OrdinalIgnoreCase);
}
}
// send the message to everyone in this group
await Clients.Group(group).SendAsync("ReceiveMessage", $"{username}: {message}");
// finish early if done
if (atendofround)
{
await SendRoundComplete(group);
}
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to send message: {e.Message}");
}
}
public override async Task OnDisconnectedAsync(Exception exception)
{
try
{
// get the group and username associated with this connectionid
GroupDetails.TryGetUsername(Context.ConnectionId, out string group, out string username);
try
{
// what if the owner drops?
if (!string.IsNullOrWhiteSpace(group) && GroupDetails.TryGetOwner(group, out string ownerconnectionid))
{
if (string.Equals(Context.ConnectionId, ownerconnectionid, StringComparison.OrdinalIgnoreCase))
{
// ugh - we cannot proceed
await SendMessage(group, "I left the game and no more rounds can be played (sorry)");
}
else
{
// notify that you left
await SendMessage(group, $"I left the game");
}
}
// clean up
GroupDetails.Purge(Context.ConnectionId);
// broadcast the updated group
if (!string.IsNullOrWhiteSpace(group))
{
await Clients.Group(group).SendAsync("ReceiveJoin", GetSortedUsers(GroupDetails.GetUsers(group)));
}
await base.OnDisconnectedAsync(exception);
}
catch (Exception e)
{
await Clients.Group(group).SendAsync("ReceiveMessage", $"failed to disconnect: {e.Message}");
}
}
catch (Exception e)
{
await Clients.All.SendAsync("ReceiveMessage", $"Catastrophic failure: {e.Message}");
}
}