using UnityEngine;

public sealed class MainMenuController : MonoBehaviour
{
    private string address = "127.0.0.1";
    private string portText = "7777";
    private void OnGUI()
    {
        NetworkSessionController session = NetworkSessionController.Instance;
        GUI.Box(new Rect(24, 24, 380, 285), string.Empty);
        GUILayout.BeginArea(new Rect(44, 44, 340, 245));
        GUILayout.Label("FRIENDSLOP // MOUNTAIN FACTORY"); GUILayout.Space(10);
        if (session == null) { GUILayout.Label("Bootstrap is unavailable."); GUILayout.EndArea(); return; }
        if (session.IsOnline) { GUILayout.Label(session.Status); GUILayout.EndArea(); return; }
        GUILayout.Label("Host LAN IP"); address = GUILayout.TextField(address);
        GUILayout.Label("Port"); portText = GUILayout.TextField(portText); GUILayout.Space(12);
        if (GUILayout.Button("Start Host", GUILayout.Height(36))) StartHost(session);
        if (GUILayout.Button("Join Factory", GUILayout.Height(36))) StartClient(session);
        GUILayout.FlexibleSpace(); GUILayout.Label(session.Status); GUILayout.EndArea();
    }
    private void StartHost(NetworkSessionController session) { if (TryReadPort(out ushort port)) session.StartHost(port); }
    private void StartClient(NetworkSessionController session) { if (TryReadPort(out ushort port) && !string.IsNullOrWhiteSpace(address)) session.StartClient(address, port); }
    private bool TryReadPort(out ushort port) => ushort.TryParse(portText, out port) && port > 0;
}