using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
using DG.Tweening;

public class UIButtonInteraction :
    MonoBehaviour,
    IPointerEnterHandler,
    IPointerClickHandler
{
    private UIButtonType type = UIButtonType.Default;
    private Selectable selectable;

    [Header("Animation")]
    [SerializeField] private float clickScale = 0.95f;
    [SerializeField] private float duration = 0.1f;
    [SerializeField] private Ease ease = Ease.OutQuad;

    private Vector3 originalScale;
    private Tween scaleTween;

    void Awake()
    {
        originalScale = transform.localScale;
        selectable = GetComponent<Selectable>();

        UIButtonSoundTag tag = GetComponent<UIButtonSoundTag>();
        if (tag != null)
            type = tag.type;

        // Special handling for different types of Selectables
        if (selectable is Button button)
        {
            button.onClick.AddListener(OnButtonClicked);
        }
        else if (selectable is Toggle toggle)
        {
            toggle.onValueChanged.AddListener(OnToggleChanged);
        }
        else if (selectable is Slider slider)
        {
            slider.onValueChanged.AddListener(OnSliderChanged);
        }
        else if (selectable is Dropdown dropdown)
        {
            dropdown.onValueChanged.AddListener(OnDropdownChanged);
        }
        else if (selectable is TMPro.TMP_Dropdown tmpDropdown)
        {
            tmpDropdown.onValueChanged.AddListener(OnDropdownChanged);
        }
    }

    private void OnButtonClicked()
    {
        if (selectable != null && !selectable.interactable) return;
        UISoundRouter.Instance?.PlayClick(type);
        PlayClickAnimation();
    }

    private void OnToggleChanged(bool isOn)
    {
        if (selectable != null && !selectable.interactable) return;
        UISoundRouter.Instance?.PlayClick(type);
    }

    private void OnDropdownChanged(int value)
    {
        if (selectable != null && !selectable.interactable) return;
        UISoundRouter.Instance?.PlayClick(type);
    }

    private void OnSliderChanged(float value)
    {
        // Sliders usually don't play sound on every value change
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        if (selectable != null && !selectable.interactable) return;
        UISoundRouter.Instance?.PlayHover(type);
    }

    public void OnPointerClick(PointerEventData eventData)
    {
        // If it's a Button, Toggle or Dropdown, we already play sound in their specific events
        if (selectable is Button || selectable is Toggle || selectable is Dropdown || selectable is TMPro.TMP_Dropdown) return;
        
        if (selectable != null && !selectable.interactable) return;
        UISoundRouter.Instance?.PlayClick(type);
        PlayClickAnimation();
    }

    void PlayClickAnimation()
    {
        scaleTween?.Kill();

        transform.localScale = originalScale;

        scaleTween = transform
            .DOScale(originalScale * clickScale, duration)
            .SetEase(ease)
            .SetUpdate(true)
            .OnComplete(() =>
            {
                transform
                    .DOScale(originalScale, duration)
                    .SetEase(ease)
                    .SetUpdate(true);
            });
    }
}