using BaseGames.Combat;
using UnityEngine;

namespace BaseGames.World
{
    /// <summary>
    /// 可破坏物（墙壁/地块）。实现 IDamageable，受击后破坏并在 WorldStateRegistry 记录状态。
    /// </summary>
    public class DestructibleTile : MonoBehaviour, IDamageable
    {
        [SerializeField] private int                _maxHP        = 1;
        [SerializeField] private string             _destructedId;
        /// <summary>
        /// ScriptableObject 注入（非静态 Instance）。
        /// 在 Inspector 中手动拖入场景级 WorldStateRegistry 资产。
        /// </summary>
        [SerializeField] private WorldStateRegistry _worldState;

        private bool _isDestroyed;

        // ── IDamageable ───────────────────────────────────────────────────────
        public bool IsInvincible => _isDestroyed;
        public int  Defense      => 0;

        public void TakeDamage(DamageInfo info)
        {
            if (_isDestroyed) return;
            if (!CheckDestroyCondition(info)) return;

            _isDestroyed = true;
            DestroyTile();
        }

        // ── Virtual Hook ──────────────────────────────────────────────────────

        /// <summary>
        /// 子类覆盖此方法添加额外破坏条件（如方向校验）。
        /// </summary>
        protected virtual bool CheckDestroyCondition(DamageInfo info) => true;

        // ── Implementation ────────────────────────────────────────────────────

        private void DestroyTile()
        {
            if (!string.IsNullOrEmpty(_destructedId))
                _worldState?.MarkDestroyed(_destructedId);

            // 播放破坏 VFX、移除 Tilemap 格子等由子类扩展实现
            gameObject.SetActive(false);
        }

        private void Start()
        {
            // 读档恢复：若已被摧毁则直接隐藏
            if (!string.IsNullOrEmpty(_destructedId) && _worldState != null
                && _worldState.IsDestroyed(_destructedId))
            {
                _isDestroyed = true;
                gameObject.SetActive(false);
            }
        }
    }
}