using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
using System;

public class ClientGlobalMenuManager : MonoBehaviour
{
    public static ClientGlobalMenuManager Instance;

    [Header("UI 元件")]
    public GameObject menuButton;
    public GameObject menuPanel;
    public Button homeButton;
    public Button quitButton;
    public Button closeButton;
    public Button skipButton;

    void Awake()
    {
        if (Instance == null)
        {
            Instance = this;
            // 將整個 Canvas 設為 DontDestroyOnLoad
            if (transform.parent != null)
            {
                DontDestroyOnLoad(transform.root.gameObject);
            }
            else
            {
                DontDestroyOnLoad(gameObject);
            }
        }
        else
        {
            Destroy(gameObject);
            return;
        }
    }

    void Start()
    {
        InitializeMenu();
    }

    void InitializeMenu()
    {
        // 確保選單面板一開始是隱藏的
        if (menuPanel != null)
            menuPanel.SetActive(false);

        // 綁定按鈕事件
        if (menuButton != null)
        {
            Button btn = menuButton.GetComponent<Button>();
            if (btn != null)
            {
                btn.onClick.RemoveAllListeners();
                btn.onClick.AddListener(OpenMenu);
            }
        }

        if (homeButton != null)
        {
            homeButton.onClick.RemoveAllListeners();
            homeButton.onClick.AddListener(GoToHome);
        }

        if (quitButton != null)
        {
            quitButton.onClick.RemoveAllListeners();
            quitButton.onClick.AddListener(QuitApplication);
        }

        if (closeButton != null)
        {
            closeButton.onClick.RemoveAllListeners();
            closeButton.onClick.AddListener(CloseMenu);
        }

        if (skipButton != null) 
        {
            skipButton.onClick.RemoveAllListeners();
            skipButton.onClick.AddListener(SkipButton);
        }

        Debug.Log("Client GlobalMenuManager 初始化完成");
    }

    
    public void OpenMenu()
    {
        if (menuPanel != null)
        {
            menuPanel.SetActive(true);
            Debug.Log("選單已打開");
        }
    }

    public void CloseMenu()
    {
        if (menuPanel != null)
        {
            menuPanel.SetActive(false);
            Debug.Log("選單已關閉");
        }
    }

    void GoToHome()
    {
        Debug.Log("返回主頁");
        SceneManager.LoadScene("ClientHomeScene");
        CloseMenu();
    }

    void QuitApplication()
    {
        Debug.Log("離開程式");
#if UNITY_EDITOR
        UnityEditor.EditorApplication.isPlaying = false;
#else
        Application.Quit();
#endif
    }

    private void SkipButton()
    {
        if (ClientIntroSceneController.Instance != null)
        {
            StartCoroutine(ClientIntroSceneController.Instance.LoadNextScene()); 
        }

        CloseMenu();
    }

}