/// <summary>
/// Sends message to server (and re-send if needs).
/// </summary>
/// <param name="message">message to send.</param>
private void SendMessage(Message message)
{
if (!isLoggedIn)
{
return;
}
try
{
client.SendMessage(message);
}
catch (ConnectionInterruptedException)
{
try
{
// try again
client.SendMessage(message);
}
catch (ConnectionInterruptedException)
{
// fail two times -> something wrong with connection
Logout();
ConnectionBreaks?.Invoke();
}
}
}
/// <summary>
/// Listen for messages from server.
/// </summary>
public async void Listen()
{
if (!isLoggedIn)
{
return;
}
// message from server
Message message;
while (true)
{
try
{
// wait for message
message = await client.ReceiveMessageAsync();
}
catch (ConnectionInterruptedException)
{
if (isLoggedIn)
{
ConnectionBreaks?.Invoke();
}
return;
}
// handle message
if (message is AllUsersMessage)
{
OnlineUsersList = new List <string>(((AllUsersMessage)message).OnlineUsers);
OfflineUsersList = new List <string>(((AllUsersMessage)message).OfflineUsers);
}
else if (message is FriendsMessage)
{
OnlineFriendsList = new List <string>(((FriendsMessage)message).OnlineFriends);
OfflineFriendsList = new List <string>(((FriendsMessage)message).OfflineFriends);
}
else if (message is IncomeFriendshipRequestsMessage)
{
IncomeRequestsList = new List <string>(((IncomeFriendshipRequestsMessage)message).Logins);
}
else if (message is OutcomeFriendshipRequestsMessage)
{
OutcomeRequestsList = new List <string>(((OutcomeFriendshipRequestsMessage)message).Logins);
}
else if (message is UserActionMessage)
{
UserActionMessage msg = (UserActionMessage)message;
switch (msg.Action)
{
case UserActions.GoOnline:
FriendGoOnline?.Invoke(msg.UserLogin);
break;
case UserActions.GoOffline:
FriendGoOffline?.Invoke(msg.UserLogin);
break;
case UserActions.AcceptFriendship:
FriendshipAccepted?.Invoke(msg.UserLogin, msg.Time);
OutcomeRequestsList?.Remove(msg.UserLogin);
if (OnlineFriendsList != null && !OnlineFriendsList.Contains(msg.UserLogin))
{
OnlineFriendsList.Add(msg.UserLogin);
}
break;
case UserActions.RejectFriendship:
FriendshipRejected?.Invoke(msg.UserLogin, msg.Time);
OutcomeRequestsList?.Remove(msg.UserLogin);
break;
case UserActions.SendFriendshipRequest:
NewFriendshipRequest?.Invoke(msg.UserLogin, msg.Time);
if (IncomeRequestsList != null && !IncomeRequestsList.Contains(msg.UserLogin))
{
IncomeRequestsList.Add(msg.UserLogin);
}
break;
case UserActions.CancelFriendshipRequest:
FriendshipRequestCancelled?.Invoke(msg.UserLogin, msg.Time);
IncomeRequestsList?.Remove(msg.UserLogin);
break;
case UserActions.RemoveFromFriends:
RemovedFromeFriends?.Invoke(msg.UserLogin, msg.Time);
OnlineFriendsList?.Remove(msg.UserLogin);
OfflineFriendsList?.Remove(msg.UserLogin);
break;
case UserActions.MessageSended:
MessageSended?.Invoke(msg.UserLogin, msg.Time);
break;
default:
break;
}
}
else if (message is NewReplyMessage)
{
Conversations.AddReply(
((NewReplyMessage)message).Interlocutor,
new ConversationReply
{
Author = ((NewReplyMessage)message).Author,
Time = ((NewReplyMessage)message).Time,
Text = ((NewReplyMessage)message).Text
}
);
NewReplyComes?.Invoke(
((NewReplyMessage)message).Interlocutor,
new ConversationReply
{
Author = ((NewReplyMessage)message).Author,
Time = ((NewReplyMessage)message).Time,
Text = ((NewReplyMessage)message).Text
});
}
else if (message is OldReplyMessage)
{
Conversations.InsertReplyToTop(
((OldReplyMessage)message).Interlocutor,
new ConversationReply
{
Author = ((OldReplyMessage)message).Author,
Time = ((OldReplyMessage)message).Time,
Text = ((OldReplyMessage)message).Text
}
);
OldReplyComes?.Invoke(
((OldReplyMessage)message).Interlocutor,
new ConversationReply
{
Author = ((OldReplyMessage)message).Author,
Time = ((OldReplyMessage)message).Time,
Text = ((OldReplyMessage)message).Text
});
}
}
}