private void SendMessage(string messageToSend, string sender, string receiver)
{
Sb.Append(UserName + ": " + messageToSend + '\n');
ChatText = Sb.ToString();
ChatHubProxy.Invoke("SendMessage", messageToSend, sender, receiver);
YourText = "";
}
/// <summary>
/// a new user is being registrated, if the user name is not already exist.
/// the user will not login automatically, only if he clicks the login button
/// </summary>
public void Register()
{
try
{
if (string.IsNullOrWhiteSpace(UserName) || string.IsNullOrWhiteSpace(Password))
{
MessageBox.Show("You must choose a User Name and a Password, do not leave the fields empty");
return;
}
User newUser = new User {
UserName = UserName, Password = Password
};
bool userAdded = ChatHubProxy.Invoke <bool>("GetNewUser", newUser).Result; // userAdded is true if the new user was registrated
if (!userAdded)
{
MessageBox.Show("User name already exist! please choose another user name");
}
else
{
MessageBox.Show("You are now registered to the system, you can login now");
EnableButtonRegister = false;
}
}
catch (Exception e)
{
MessageBox.Show("an error occurred while trying to register. we're sorry for the inconvenient");
Logger.LOG.WriteToLog("Failed register a new user" + Environment.NewLine + DateTime.Now.ToString() + Environment.NewLine + "Exception details: " + e.ToString() + "," + e.GetType().FullName + Environment.NewLine);
return;
}
}
/// <summary>
/// check if the user can connect to the selected user in order to chat
/// </summary>
/// <returns>boolean, to tell if the user is available or not</returns>
public bool CanConnectToUserChat()
{
if (SelectedName == null)
{
return(false);
}
string selectedUserName = SelectedName.UserName;
bool responseValidateAvailabilityOfOtherUser = ChatHubProxy.Invoke <bool>("ValidateAvailabilityOfOtherUser", selectedUserName, GameOrChatRequestEnum.Chat).Result;
if (responseValidateAvailabilityOfOtherUser)
{
ChatHubProxy.Invoke("AskUserToStartChat", selectedUserName, UserName);
}
return(responseValidateAvailabilityOfOtherUser);
}
/// <summary>
///
/// </summary>
public void Login()
{
/// <summary>
/// when the user is logging-in he get all the names of the registreted users, and their status of connection (available, on-game, on-chat...). any update of the status of other user, or of new user that registreted will appear
/// </summary>
/// <param name="usersWithStatus"></param>
ChatHubProxy.On("UpdateAllUsersNamesAndConnectionStatus", (List <UserWithStatus> usersWithStatus) =>
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
usersWithStatus = usersWithStatus.Where(x => x.UserName != UserName).ToList();
UsersNamesWithStatus = ConvertListToObservableCollection(usersWithStatus);
}));
});
try
{
if (string.IsNullOrWhiteSpace(UserName) || string.IsNullOrWhiteSpace(Password))
{
MessageBox.Show("You must enter a User Name and a Password, do not leave the fields empty");
return;
}
User user = new User {
UserName = UserName, Password = Password
};
Response response = ChatHubProxy.Invoke <Response>("ValidateLogin", user).Result;
if (response.IsOk1)
{
EnableButtonLogin = false; // after login, can't do another login
EnableButtonRegister = false; // after login, can't do registreting
MessageBox.Show(response.Message1);
}
else if (!response.IsOk1)
{
MessageBox.Show(response.Message1);
}
}
catch (Exception e)
{
Logger.LOG.WriteToLog("Failed login in ChatViewModel" + Environment.NewLine + DateTime.Now.ToString() + Environment.NewLine + "Exception details: " + e.ToString() + "," + e.GetType().FullName + Environment.NewLine);
}
}
/// <summary>
/// when a client connect to the server, he is registering to events from the server by "ChatHubProxy.On..."
/// </summary>
public void ConnectToServer()
{
/// <summary>
/// getting a request from other user to chat with him
/// </summary>
/// <param name="senderName"></param>
ChatHubProxy.On("ChatRequest", (string senderName) =>
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
bool approve = ApproveChatInvitation(senderName);
ChatHubProxy.Invoke("ApproveToChat", approve, UserName, senderName); // send a bolean to the server and than to the other user, if he wants to chat with him or not
}));
});
/// <summary>
/// getting a request from other user to play backgammon with him
/// </summary>
/// <param name="senderName"></param>
ChatHubProxy.On("GameRequest", (string senderName) =>
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
bool approve = ApproveGameInvitation(senderName);
ChatHubProxy.Invoke("ApproveToGame", approve, UserName, senderName); // // send a bolean to the server and than to the other user, if he wants to play bacgammon with him or not
}));
});
/// <summary>
/// get an approve or disapprove to his own chat request from the server (the server get it from the other user)
/// </summary>
/// <param name="approve">boolean, that approve the chat request from the other user</param>
/// <param name="otherUser">string, the name of the other user on the chat</param>
ChatHubProxy.On("responseOfChatRequestToSender", (bool approve, string otherUser) =>
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
if (approve)
{
MessageBox.Show("Chat will start!");
ChatRoom chatRoom = new ChatRoom(UserName, otherUser, ChatHubProxy);
chatRoom.Show();
}
else
{
MessageBox.Show("Some other time...");
}
}));
});
/// <summary>
/// get an approve or disapprove to his own game request from the server (the server get it from the other user)
/// </summary>
/// <param name="approve">boolean, that approve the game request from the other user</param>
/// <param name="otherUser">string, the name of the other user on the game</param>
/// <param name="startGameUser">string, the user that sent the request, he will be the one that starts the game -> the "Red"</param>
ChatHubProxy.On("responseOfGameRequestToSender", (bool approve, string otherUser, string startGameUser) =>
{
Application.Current.Dispatcher.BeginInvoke(new Action(() =>
{
if (approve)
{
string msg = "Game will start!\nPlease click the disc and then the cube in order to move a disc,\nTo get an eaten cube back to the board click only on the cube,\n";
if (UserName.Equals(startGameUser))
{
msg += "You are the Red,\nYou start!";
}
else if (otherUser.Equals(startGameUser))
{
msg += "You are the Black,\nThe Red starts";
}
MessageBox.Show(msg);
Application.Current.MainWindow.Content = new Game(UserName, otherUser, ChatHubProxy, startGameUser);
}
else
{
MessageBox.Show("Some other time...");
}
}));
});
HubConnection.Start().Wait();
}
