Test-Multiplayer/Assets/Scripts/RiveLoginController.cs

using Mirror;
using Rive;
using Rive.Components;
using TMPro;
using UnityEngine;

public class RiveLoginController : MonoBehaviour
{
    [Header("Rive")]
    [SerializeField] private RiveWidget riveWidget;
    [SerializeField] private string startTriggerName = "startClicked";

    [Header("Login")]
    [Tooltip("Still needed username until Rive has a bound string property.")]
    [SerializeField] private TMP_InputField usernameInput;

    [SerializeField] private LoginUI loginUI;

    private ViewModelInstanceTriggerProperty startTrigger;

    private void Awake()
    {
        if (riveWidget == null)
            riveWidget = GetComponent<RiveWidget>();
    }

    private void OnEnable()
    {
        if (riveWidget == null) return;

        riveWidget.OnWidgetStatusChanged += HandleWidgetStatusChanged;
        HandleWidgetStatusChanged();
    }

    private void OnDisable()
    {
        if (riveWidget != null)
            riveWidget.OnWidgetStatusChanged -= HandleWidgetStatusChanged;

        if (startTrigger != null)
            startTrigger.OnTriggered -= OnStartClicked;
    }

    private void HandleWidgetStatusChanged()
    {
        if (riveWidget.Status != WidgetStatus.Loaded)
            return;

        ViewModelInstance vm = riveWidget.StateMachine?.ViewModelInstance;
        if (vm == null)
        {
            Debug.LogError("RiveLoginController: ViewModelInstance is null. Set Data Binding Mode to Auto Bind Default.");
            return;
        }

        if (startTrigger != null)
            startTrigger.OnTriggered -= OnStartClicked;

        startTrigger = vm.GetTriggerProperty(startTriggerName);
        if (startTrigger == null)
        {
            Debug.LogError($"RiveLoginController: Trigger '{startTriggerName}' not found.");
            return;
        }

        startTrigger.OnTriggered += OnStartClicked;
    }

    private void OnStartClicked()
    {
        StartMultiplayerSession();
    }

    public void StartMultiplayerSession()
    {
        string username = usernameInput != null
            ? usernameInput.text.Trim()
            : string.Empty;

        Debug.Log($"[RiveLoginController] StartMultiplayerSession called. Username length: {username.Length}");

        if (string.IsNullOrWhiteSpace(username))
        {
            Debug.LogWarning("[RiveLoginController] Client start blocked because the username is empty.");
            if (loginUI != null && loginUI.errorText != null)
            {
                loginUI.errorText.text = "Enter a username";
                loginUI.errorText.gameObject.SetActive(true);
            }
            else
            {
                Debug.LogWarning("RiveLoginController: Username is empty");
            }
            return;
        }

        ChatAuthenticator auth = NetworkManager.singleton.GetComponent<ChatAuthenticator>();
        if (auth != null)
        {
            Debug.Log("[RiveLoginController] Assigning username to ChatAuthenticator.");
            auth.SetPlayerName(username);
        }
        else
            Debug.LogWarning("RiveLoginController: ChatAuthenticator not found on NetworkManager");

        Debug.Log($"[RiveLoginController] Starting client. Network address: '{NetworkManager.singleton.networkAddress}'");
        NetworkManager.singleton.StartClient();
    }
}