using UnityEngine;
using VRShopping.Interact;
using VRShopping.Items;

public class BarcodeScaner : MonoBehaviour
{
    //스캔 영역 콜라이더
    [SerializeField] private Collider _scanAreaCollider;

    //스캔 이펙트
    [SerializeField] private ParticleSystem _scanVisualEffect;

    //스캔 사운드
    [SerializeField] private AudioSource _scanSoundEffect;

    //체크아웃 정보 저장 객체
    [SerializeField] private CheckoutMachine _checkoutMachine;

    private readonly Collider[] _overlapBuffer = new Collider[32];

    // 스캔영역 콜라이더 안에서 중심에 가장 가까운 아이템 하나만 스캔
    public void ScanArea()
    {
        if (_scanAreaCollider == null) return;

        var bounds = _scanAreaCollider.bounds;
        var count = Physics.OverlapBoxNonAlloc(bounds.center, bounds.extents, _overlapBuffer, Quaternion.identity);

        ItemInstance closest = null;
        float closestDistSqr = float.MaxValue;
        var center = bounds.center;

        for (int i = 0; i < count; i++)
        {
            var item = _overlapBuffer[i].GetComponentInParent<ItemInstance>();
            if (item == null) continue;

            float d = (item.transform.position - center).sqrMagnitude;
            if (d < closestDistSqr)
            {
                closestDistSqr = d;
                closest = item;
            }
        }

        if (closest != null) ScanProduction(closest);
    }

    //ItemInstance의 상품 정보를 스캔
    public void ScanProduction(ItemInstance itemIns)
    {
        _checkoutMachine.AddCheckoutProduction(itemIns.ItemDataInfo);

        if (_scanVisualEffect != null) _scanVisualEffect.Play();
        if (_scanSoundEffect != null) _scanSoundEffect.Play();
    }



}