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

public class rewardSlotPrefab : MonoBehaviour, IPointerEnterHandler, IPointerExitHandler
{
    public Image borderIconImg;
    public Sprite[] borderIconSprites;
    public Image rewardIcon;
    public Text rewardName;
    public Text rewardAmount;

    public GameObject detailBtm;
    public Text detailText;

    void OnEnable()
    {
        if (detailBtm != null) detailBtm.SetActive(false);
    }

    public void BindReward(mail_so.rewardItem reward)
    {
        if (reward == null)
        {
            ApplyBorderSprite(ItemRarity.None);
            return;
        }

        MailRewardGrantService.PopulateRewardDisplay(reward);

        if (rewardName != null) rewardName.text = reward.rewardName;
        if (rewardAmount != null) rewardAmount.text = reward.reward_ammount == 1 ? string.Empty : reward.reward_ammount.ToString();
        if (rewardIcon != null) rewardIcon.sprite = reward.reward_image;
        if (detailText != null) detailText.text = reward.reward_description;

        if (!MailRewardGrantService.TryGetRewardRarity(reward, out ItemRarity rarity))
        {
            rarity = ItemRarity.None;
        }
        ApplyBorderSprite(rarity);
    }

    private void ApplyBorderSprite(ItemRarity rarity)
    {
        if (borderIconImg == null)
        {
            return;
        }

        Sprite sprite = ResolveBorderSprite(rarity);
        borderIconImg.sprite = sprite;
        borderIconImg.enabled = sprite != null;
    }

    private Sprite ResolveBorderSprite(ItemRarity rarity)
    {
        if (borderIconSprites != null && borderIconSprites.Length > 0)
        {
            int enumIndex = (int)rarity;
            if (enumIndex >= 0 && enumIndex < borderIconSprites.Length)
            {
                Sprite sprite = borderIconSprites[enumIndex];
                if (sprite != null)
                {
                    return sprite;
                }
            }

            if (borderIconSprites[0] != null)
            {
                return borderIconSprites[0];
            }
        }

        return null;
    }

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

        detailBtm.SetActive(true);
        UI_OrderedEntryAnimator.PlayFadeOnly(detailBtm, 0, 0.12f, 0f, true);
    }

    public void OnPointerExit(PointerEventData eventData)
    {
        if (detailBtm == null)
        {
            return;
        }

        CanvasGroup group = detailBtm.GetComponent<CanvasGroup>();
        if (group == null)
        {
            group = detailBtm.AddComponent<CanvasGroup>();
        }

        group.DOKill();
        group.DOFade(0f, 0.1f)
            .SetEase(Ease.OutQuad)
            .SetUpdate(true)
            .SetTarget(detailBtm)
            .OnComplete(() =>
            {
                if (detailBtm != null)
                {
                    detailBtm.SetActive(false);
                    group.alpha = 1f;
                }
            });
    }
}