using UnityEngine;
using UnityEngine.SceneManagement;
using Platformer.Mechanics;

namespace Platformer.UI
{
    /// <summary>
    /// Health.OnDeathEvent 수신 시 부활/재시작 팝업 표시.
    /// PD 지시 2026-05-07:
    ///   - 예 → 제자리 부활 (Health.Resurrect, 부활 직후 2초 무적)
    ///   - 아니오 → 씬 재시작 (SceneManager.LoadScene)
    /// 임시 OnGUI 영역 — 향후 uGUI Canvas 영역으로 미관 정정 별건.
    /// </summary>
    [RequireComponent(typeof(Health))]
    public class ResurrectPromptUI : MonoBehaviour
    {
        Health health;
        bool showPrompt;

        void Awake()
        {
            health = GetComponent<Health>();
            if (health != null)
            {
                health.OnDeathEvent += OnDeath;
                health.OnResurrectEvent += OnResurrect;
            }
        }

        void OnDestroy()
        {
            if (health != null)
            {
                health.OnDeathEvent -= OnDeath;
                health.OnResurrectEvent -= OnResurrect;
            }
        }

        void OnDeath()
        {
            showPrompt = true;
            Time.timeScale = 0f;
        }

        void OnResurrect()
        {
            showPrompt = false;
            Time.timeScale = 1f;
        }

        void OnGUI()
        {
            if (!showPrompt) return;

            float w = 360f, h = 200f;
            float x = (Screen.width - w) * 0.5f;
            float y = (Screen.height - h) * 0.5f;

            GUI.Box(new Rect(x, y, w, h), "사망 — 부활하시겠습니까?");

            if (GUI.Button(new Rect(x + 30f, y + 110f, 130f, 60f), "예 (제자리 부활)"))
            {
                if (health != null)
                {
                    health.canResurrect = true;
                    health.Resurrect();
                }
            }

            if (GUI.Button(new Rect(x + 200f, y + 110f, 130f, 60f), "아니오 (재시작)"))
            {
                Time.timeScale = 1f;
                SceneManager.LoadScene(SceneManager.GetActiveScene().name);
            }
        }
    }
}