using UnityEngine;
using System;
using GameFramework;
namespace IndianOceanAssets.Engine2_5D
{
    // Handles health, damage, and death for entities
    public class HealthSystem : MonoBehaviour
    {
        /// <summary>玩家受伤时触发（用于受击特效等）</summary>
        public static Action onPlayerDamaged;

        [Range(1, 100)]
        [SerializeField]
        private int maxHealth = 5; // Maximum health
        private int health = 5; // Current health

        [SerializeField]
        private GameObject deathEffect; // Effect prefab on death

        [SerializeField]
        private bool isPlayer; // Is this the player?

        private bool _isDead = false; // 防止重复触发死亡

        // Initializes health
        private void Start()
        {
            health = maxHealth;
        }

        // Applies damage and checks for death
        public void Damage(int damageAmount)
        {
            if (_isDead) return; // 已死亡，不再处理

            health -= damageAmount;

            // 玩家受伤时触发事件（用于受击泛红特效）
            if (isPlayer && onPlayerDamaged != null)
                onPlayerDamaged.Invoke();

            // 播放受伤音效
            if (isPlayer && AudioManager.Instance != null)
                AudioManager.Instance.PlaySFXFromResources("SFX/Hurt", 0.7f);

            // If dead
            if (health <= 0)
            {
                _isDead = true;

                if (isPlayer)
                {
                    // 玩家死亡：触发过场动画，不立即销毁（由 GameManager 处理）
                    GameManager.GameOver();
                }
                else
                {
                    // 非玩家：正常播放死亡特效并销毁
                    Die();
                }
            }
        }

        // Handles death logic and effects
        public void Die()
        {
            Instantiate(deathEffect, transform.position + new Vector3(0f, .5f, 0f), Quaternion.identity);
            Destroy(gameObject);
        }
    }
}