private void MainChatsList_OnSelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (MainChatsList.SelectedItem != null)
{
MainMessagesNotify selectedChat = MainChatsList.SelectedItem as MainMessagesNotify;
MainChatsList.SelectedItem = null; // select nothing
if (selectedChat == null)
{
return;
}
// open the chat window
if (!OpenWindowsList.ContainsKey(selectedChat.Username))
{
OpenWindowsList.Add(selectedChat.Username, new ChatWindow(selectedChat.Username));
OpenWindowsList[selectedChat.Username].Show();
// reset new messages
MessagesList.First(x => x == selectedChat).NewMessages = 0;
SharedStuff.Database.ExecuteAsync("UPDATE Users SET UnreadMessages = ? WHERE Username = ?",
0, selectedChat.Username);
}
else
{
OpenWindowsList[selectedChat.Username].Activate();
}
}
}
private async void FrameworkElement_OnLoaded(object sender, RoutedEventArgs e)
{
// create tables
await SharedStuff.Database.CreateTablesAsync <DatabaseHelper.Messages, DatabaseHelper.Files, DatabaseHelper.Users>();
// get all of the users that have messaged the user and get their last message
{
// at first get list of all users
var users = await SharedStuff.Database.Table <DatabaseHelper.Users>().ToArrayAsync();
var msgs = new MainMessagesNotify[users.Length];
// then select last message of the users from Messages table
for (int i = 0; i < users.Length; i++)
{
var lastMsgQ =
await SharedStuff.Database.QueryAsync <DatabaseHelper.Messages>("SELECT * FROM Messages WHERE Username == ? ORDER BY ID DESC LIMIT 1", users[i].Username);
if (lastMsgQ.Count > 0)
{
var lastMsg = lastMsgQ[0];
string msg = lastMsg.Type == 0 ? lastMsg.Payload :
(await SharedStuff.Database.Table <DatabaseHelper.Files>()
.Where(file => file.Token == lastMsg.Payload).FirstAsync()).Name;
msgs[i] = new MainMessagesNotify
{
Type = (MessageType)lastMsg.Type,
Username = users[i].Username,
IsLastMessageForUser = lastMsg.MyMessage,
Message = msg,
Name = users[i].Name,
FullDate = lastMsg.Date,
NewMessages = users[i].UnreadMessages
};
}
}
// sort the messages by the date
Array.Sort(msgs, (x, y) => y.FullDate.CompareTo(x.FullDate)); // reverse sort; The latest date is at top
// add them to main messages list
foreach (var msg in msgs)
{
MessagesList.Add(msg);
}
}
// connect to server and register the websocket
await Task.Run(() =>
{
while (true)
{
try
{
SharedStuff.Websocket = new WebSocket("wss://" + Properties.Settings.Default.ServerAddress + "/chat/registerUpdater");
SharedStuff.Websocket.OnMessage += WS_OnMessage;
if (Properties.Settings.Default.TrustInvalidSSL)
{
SharedStuff.Websocket.SslConfiguration.ServerCertificateValidationCallback =
(a, certificate, chain, sslPolicyErrors) => true;
}
SharedStuff.Websocket.Connect();
SharedStuff.Websocket.Send(JsonConvert.SerializeObject(new JsonTypes.HelloMessage
{
Username = _savedData.Username,
Password = _savedData.Password,
Verify = Convert.ToBase64String(SharedStuff.Curve.calculateSignature(Convert.FromBase64String(_savedData.PrivateKey), Encoding.UTF8.GetBytes(_savedData.Password)))
}));
}
catch (Exception)
{
Thread.Sleep(5000); // wait 5 seconds and retry
continue;
}
break;
}
});
}