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

public class UI_OpenTipPanel : BasePanel
{
    public Button NextBtn;//下一个按钮
    public Button PrevBtn;//上一个按钮
    public Button OKBtn; //知道了按钮
    private CanvasGroup canvasGroup; //屏幕显示
    private GameObject Player;
    public List<Sprite> bookPages = new List<Sprite>(); //台账翻页
    public Image LedgerImage; //提示图片
    public int currentPage = 1; //当前页数
    // Start is called before the first frame update
    protected override void Awake()
    {
        base.Awake();
        OnInit();
    }
    public void OnInit()
    {
        NextBtn = GetControl<Button>("下一步");
        PrevBtn = GetControl<Button>("上一步");
        OKBtn  = GetControl<Button>("知道了");
        canvasGroup = GetComponent<CanvasGroup>();
        canvasGroup.alpha = 0f; // 默认隐藏
        canvasGroup.interactable = false;
        canvasGroup.blocksRaycasts = false;
        Player = GameObject.FindGameObjectWithTag("Player");
    }

    public override void ShowMe()
    {
        base.ShowMe();
        UpDatePageDisplay();
        FadeIn(0.5f);
        Player = GameObject.FindGameObjectWithTag("Player");
    }

    public override void HideMe()
    {
        base.HideMe();
        currentPage = 1;
        UpDatePageDisplay();
        FadeOut(0.5f);
    }
    protected override void OnClick(string btnPath)
    {
        base.OnClick(btnPath);
        switch (btnPath)
        {
            case "CloseBtn":
                FadeOut(0.5f);
                Player.GetComponent<FirstPersonController>().enabled = true;
                currentPage = 1;
                LedgerImage.sprite = bookPages[0];
                break;
            case "上一步":
                Debug.Log("下一步");
                PrevPage();
                break;
            case "下一步":
                Debug.Log("下一步");
                NextPage();
                break;
            case "知道了":
                Debug.Log("知道了");
                
                break;
        }
    }
    
    /// <summary>
    /// 提问渐显
    /// </summary>
    public void FadeIn(float time)
    {
        canvasGroup.DOFade(1f, time);
        canvasGroup.interactable = true;
        canvasGroup.blocksRaycasts = true;
    }

    /// <summary>
    /// 提问渐隐
    /// </summary>
    public void FadeOut(float time)
    {
        canvasGroup.DOFade(0f, time);
        canvasGroup.interactable = false;
        canvasGroup.blocksRaycasts = false;
    }
    /// <summary>
    /// 上一页
    /// </summary>
    public void PrevPage()
    {
        Debug.Log("上一页");
        if (currentPage > 1)
        {
            currentPage--;
            UpDatePageDisplay();
        }
    }
    
    /// <summary>
    /// 下一页
    /// </summary>
    public void NextPage()
    {
        Debug.Log("下一页");
        if (currentPage < bookPages.Count)
        {
            currentPage++;
            UpDatePageDisplay();
        }
    }
    /// <summary>
    /// 更新页数
    /// </summary>
    public void UpDatePageDisplay()
    {
        Debug.Log(bookPages.Count);
        if (currentPage >= 1 && currentPage <= bookPages.Count)
        {
            LedgerImage.sprite = bookPages[currentPage - 1];
            LedgerImage.gameObject.SetActive(true);
            Debug.Log($"显示第 {currentPage} 页，共 {bookPages.Count} 页");
        }
        else
        {
            Debug.Log("当前文件夹内为空");
            LedgerImage.gameObject.SetActive(false);
        }
        
        PrevBtn.gameObject.SetActive(currentPage > 1); // 上一页
        NextBtn.gameObject.SetActive(currentPage < bookPages.Count); // 下一页
    }
}