using System.Collections;
using TMPro;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;

public class uBagItemPrefab : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler, IPointerClickHandler
{
    [Header("ui")]
    public Image itemIcon;
    public TMP_Text itemCount;
    public Image itemBtmImg;

    private uBag owner;
    private Coroutine hoverRoutine;
    private float hoverDelaySeconds = 0.5f;

    public void Bind(uBag bagOwner, Sprite icon, string countText, Color backgroundColor, Sprite backgroundSprite, float hoverDelay)
    {
        owner = bagOwner;
        hoverDelaySeconds = hoverDelay > 0f ? hoverDelay : 0.5f;

        if (itemIcon != null)
        {
            itemIcon.sprite = icon;
            itemIcon.enabled = icon != null;
            itemIcon.color = Color.white;
        }

        if (itemCount != null)
        {
            itemCount.text = countText ?? string.Empty;
        }

        if (itemBtmImg != null)
        {
            itemBtmImg.sprite = backgroundSprite;
            itemBtmImg.color = backgroundSprite != null ? Color.white : backgroundColor;
        }
    }

    public void OnPointerEnter(PointerEventData eventData)
    {
        if (owner == null)
        {
            return;
        }

        CancelHover();
        hoverRoutine = StartCoroutine(HoverDelay());
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        CancelHover();
        if (owner != null)
        {
            owner.HidePreviewFor(this);
        }
    }

    public void OnPointerClick(PointerEventData eventData)
    {
        if (owner == null || eventData == null || eventData.button != PointerEventData.InputButton.Left)
        {
            return;
        }

        owner.SelectItemForDetail(this);
    }

    private IEnumerator HoverDelay()
    {
        yield return new WaitForSecondsRealtime(hoverDelaySeconds);
        hoverRoutine = null;
        if (owner != null)
        {
            owner.ShowPreviewFor(this);
        }
    }

    private void OnDisable()
    {
        CancelHover();
        if (owner != null)
        {
            owner.HidePreviewFor(this);
        }
    }

    private void CancelHover()
    {
        if (hoverRoutine != null)
        {
            StopCoroutine(hoverRoutine);
            hoverRoutine = null;
        }
    }
}