private void poruka(object sender, MqttMsgPublishEventArgs e) // Ispis pristigle poruke
{
Dispatcher.Invoke((Action)(() => // sinkronizira dretve ukoliko stigne poruka tako da ju moze koristiti prilikom ispisa
{
Chat.AppendText("\n" + Encoding.UTF8.GetString(e.Message)); //ispisi text
}));
}
public void WriteMessage(string user, string message)
{
Dispatcher.BeginInvoke((Action)(() =>
{
string date = DateTime.Now.ToShortDateString() + " " + DateTime.Now.ToShortTimeString() + ":" + DateTime.Now.Second;
string result = date + " " + user + ": " + message + Environment.NewLine;
Chat.AppendText(result);
}));
}
public void AddText(string text, bool newLine, Color color)
{
if (Chat.Text.Length > 2)
{
Chat.Select(Chat.Text.Length - 2, 2);
Chat.SelectedText = " ";
}
int start = Chat.TextLength;
Chat.AppendText(newLine? "\n" + text + "\n\n" : text + "\n\n");
int end = Chat.TextLength;
Chat.Select(start, end - start);
Chat.SelectionColor = color;
Chat.DeselectAll();
Chat.ScrollToCaret();
}
public Window1(string _value, string _value2, string _value3) // Prenesene varijable
{
InitializeComponent();
broker = _value; // spremi lokalne prenesene varijable u globalne
topic = _value2;
username = _value3;
Client = new MqttClient(broker); // Povezi se na broker
Chat.AppendText("\nWelcome to chat!\nTopic: ");
Chat.AppendText(topic.ToString() + "\n");
Client.MqttMsgPublishReceived += poruka; // Dohvati poruku
Client.Connect(Guid.NewGuid().ToString()); // Povezi klijenta (Klijent ID)
Client.Subscribe(new string[] { topic }, new byte[] { MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE }); // Subscribe korisnika na temu
string pristup = GetTimestamp(DateTime.Now); // Dohvati trenutno vrijeme
Client.Publish(topic, Encoding.UTF8.GetBytes("[" + pristup + "] [Korisnik " + username + " je ušao u sobu " + topic + ".]"),
MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE, false); // Poruka o novom korisniku
}
