using UnityEngine;
using UnityEngine.UI;
using TMPro; // ⭐ TextMeshPro 사용을 위해 필수!

public class HPUibar : MonoBehaviour
{
    [SerializeField] private MonoBehaviour healthSource;
    [SerializeField] private Slider hpSlider;
    [SerializeField] private TextMeshProUGUI hpText; // ⭐ 유저님이 만든 그 텍스트를 여기에 연결하세요!

    private void Start()
    {
        // 1. 플레이어, 더미, 몬스터, 적 체력 스크립트 모두 대응 가능하도록 연결
        if (healthSource is PlayerHealth ph) ph.OnHealthChanged += UpdateUI;
        else if (healthSource is TrainingDummy td) td.OnHealthChanged += UpdateUI;
        else if (healthSource is EnemyHealth eh) eh.OnHealthChanged += UpdateUI; // 추가
        else if (healthSource is MonsterClass mc) mc.OnHealthChanged += UpdateUI; // 추가

        if (hpSlider != null) hpSlider.value = 1f;
    }

    private void UpdateUI(float current, float max)
    {
        // 슬라이더 바 업데이트
        if (hpSlider != null && max > 0)
        {
            hpSlider.value = current / max;
        }

        // ⭐ 글자 업데이트: "현재 체력 / 최대 체력" 형식
        // Mathf.CeilToInt를 써서 소수점 없이 정수로 예쁘게 보여줍니다.
        if (hpText != null)
        {
            hpText.text = $"{Mathf.CeilToInt(current)} / {Mathf.CeilToInt(max)}";
        }
    }

    private void LateUpdate()
    {
        if (Camera.main != null)
            transform.LookAt(transform.position + Camera.main.transform.forward);
    }

    private void OnDestroy()
    {
        if (healthSource is PlayerHealth ph) ph.OnHealthChanged -= UpdateUI;
        else if (healthSource is TrainingDummy td) td.OnHealthChanged -= UpdateUI;
        else if (healthSource is EnemyHealth eh) eh.OnHealthChanged -= UpdateUI;
        else if (healthSource is MonsterClass mc) mc.OnHealthChanged -= UpdateUI;
    }
}