using UnityEngine;
using UnityEngine.EventSystems;
using System.Collections;
using Logic.Audio;

[RequireComponent(typeof(AudioSource))]
public class ButtonHoverEffect : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerDownHandler, IPointerUpHandler
{
    [Header("悬停效果")]
    [Tooltip("鼠标悬停时的音效")]
    public AudioClip hoverSound;
    [Tooltip("目标缩放大小")]
    public float targetScale = 1.1f;

    [Header("点击效果")]
    [Tooltip("鼠标点击时的音效")]
    public AudioClip clickSound; // 新增：点击音效
    [Tooltip("按下时的缩放大小")]
    public float pressScale = 0.8f; // 新增：按下时的缩放

    [Header("动画设置")]
    [Tooltip("缩放动画的持续时间")]
    public float scaleDuration = 0.1f;

    private AudioSource audioSource;
    private Vector3 originalScale;
    private Coroutine scaleCoroutine;
    // 新增一个状态，标记指针是否在按钮上
    private bool isPointerOver = false;

    void Awake()
    {
        audioSource = GetComponent<AudioSource>();
        originalScale = transform.localScale;
    }

    // --- 鼠标进入 ---
    public void OnPointerEnter(PointerEventData eventData)
    {
        isPointerOver = true; // 标记指针进入
        if (hoverSound != null)
        {
            AudioManager.Instance.PlayAudio("SFX/UI_buttonHover");
            //audioSource.PlayOneShot(hoverSound);
        }
        else 
            AudioManager.Instance.PlayAudio("SFX/UI_buttonHover");
        StartScaling(originalScale * targetScale);
    }

    // --- 鼠标移出 ---
    public void OnPointerExit(PointerEventData eventData)
    {
        isPointerOver = false; // 标记指针离开
        StartScaling(originalScale);
    }

    // --- 新增：鼠标按下 ---
    public void OnPointerDown(PointerEventData eventData)
    {
        // 播放点击音效
        if (clickSound != null)
        {
            AudioManager.Instance.PlayAudio("SFX/UI_buttonClick");
            //audioSource.PlayOneShot(clickSound);
        }
        else
            AudioManager.Instance.PlayAudio("SFX/UI_buttonClick");
        // 缩放到“按下”状态
        StartScaling(originalScale * pressScale);
    }

    // --- 新增：鼠标抬起 ---
    public void OnPointerUp(PointerEventData eventData)
    {
        // 如果指针仍在按钮上，则恢复到“悬停”状态，否则恢复到原始大小
        Vector3 target = isPointerOver ? originalScale * targetScale : originalScale;
        StartScaling(target);
    }

    private void StartScaling(Vector3 endScale)
    {
        if (scaleCoroutine != null)
        {
            StopCoroutine(scaleCoroutine);
        }
        scaleCoroutine = StartCoroutine(ScaleRoutine(endScale));
    }

    private IEnumerator ScaleRoutine(Vector3 endScale)
    {
        float timer = 0f;
        Vector3 startScale = transform.localScale;

        while (timer < scaleDuration)
        {
            timer += Time.unscaledDeltaTime;
            transform.localScale = Vector3.Lerp(startScale, endScale, timer / scaleDuration);
            yield return null;
        }
        transform.localScale = endScale;
    }

    
}