using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class MenuPageManager : UIPageBtnEventBase
{
    public List<Button> buttons = new List<Button>();
    public List<GameObject> showPages=new List<GameObject>();
    private int currentIndex = 0;

    public Color selectedColor = Color.yellow;
    public Color unselectedColor = Color.black;
    private GameObject currectSelectPage;
    public override void OnPageUpClick()
    {
        base.OnPageUpClick();
        SelectPrevious();
    }
    public override void OnPageDownClick() 
    {  
        base.OnPageDownClick();
        SelectNext();
    }

    public override void OnF5Click()
    {
        BackMain();
    }

    public override void OnEnterBtnClick()
    {
        base.OnEnterBtnClick();
        ///打开对应的界面
        GetCurrentButton().onClick?.Invoke();   

    }


    /// <summary>
    /// 切换到下一个按钮
    /// </summary>
    public void SelectNext()
    {
        if (buttons.Count == 0) return;

        currentIndex = (currentIndex + 1) % buttons.Count;
        UpdateButtonOutlines();
    }

    /// <summary>
    /// 切换到上一个按钮
    /// </summary>
    public void SelectPrevious()
    {
        if (buttons.Count == 0) return;

        currentIndex--;
        if (currentIndex < 0) currentIndex = buttons.Count - 1;
        UpdateButtonOutlines();
    }

    public void ShowPage()
    {

        if (currectSelectPage != null)
            currectSelectPage.SetActive(false);
        currectSelectPage =showPages.Find(x => x.name == GetCurrentButton().name);
        currectSelectPage.SetActive(true);
    }

    public void BackMain()
    {
        currectSelectPage.SetActive(false);

    }


    /// <summary>
    /// 更新按钮的 Outline 颜色
    /// </summary>
    private void UpdateButtonOutlines()
    {
        for (int i = 0; i < buttons.Count; i++)
        {
            Outline outline = buttons[i].GetComponent<Outline>();
            if (outline == null)
            {
                // 如果没有 Outline 组件则添加
                outline = buttons[i].gameObject.AddComponent<Outline>();
            }

            outline.effectColor = (i == currentIndex) ? selectedColor : unselectedColor;
        }
    }

    /// <summary>
    /// 获取当前选中的按钮
    /// </summary>
    public Button GetCurrentButton()
    {
        if (buttons.Count == 0) return null;
        return buttons[currentIndex];
    }

    /// <summary>
    /// 设置当前选择的按钮索引
    /// </summary>
    public void SetCurrentIndex(int index)
    {
        if (index < 0 || index >= buttons.Count) return;
        currentIndex = index;
        UpdateButtonOutlines();
    }
}