using System.Collections;
using Animancer;
using BaseGames.Combat;
using BaseGames.Core;
using BaseGames.Core.Pool;
using UnityEngine;

namespace BaseGames.Enemies
{
    /// <summary>
    /// E005 肥蛭（精英怪）。
    /// 特性：
    /// - 撕咬（MeleeVulnerabilityAbility）含后摇脆弱窗口
    /// - 死亡两阶段：Death_Pre 无敌演出（含 AnimationEvent spawn_e003）→ base.Die()
    /// </summary>
    public class E005_FeiZhi : EnemyBase
    {
        [Header("死亡演出")]
        [SerializeField] private ClipTransition _deathPreClip;
        [SerializeField] private HurtBox        _hurtBox;
        [SerializeField] private float          _deathPreDuration = 3f;

        [Header("生成 E003（Death_Pre AnimationEvent 触发）")]
        [SerializeField] private int   _spawnCount  = 3;
        [SerializeField] private float _spawnRadius = 1.5f;

        /// <summary>
        /// Death_Pre 动画适当帧的 AnimationEvent 调用 SpawnProjectile("spawn_e003") 生成幼蛭。
        /// </summary>
        public override void SpawnProjectile(string payload)
        {
            if (payload != "spawn_e003") return;

            var pool = BaseGames.Core.ServiceLocator.GetOrDefault<IObjectPoolService>();
            if (pool == null) return;

            for (int i = 0; i < _spawnCount; i++)
            {
                Vector2 offset = Random.insideUnitCircle * _spawnRadius;
                pool.Spawn("ENM_YouZhi", (Vector2)transform.position + offset, Quaternion.identity);
            }
        }

        protected override void Die()
        {
            StartCoroutine(DeathSequence());
        }

        private IEnumerator DeathSequence()
        {
            StopBehaviorTree();
            StopMovement();

            if (_hurtBox != null)
                _hurtBox.enabled = false;

            if (_deathPreClip.Clip != null)
            {
                Animancer.Play(_deathPreClip);
                yield return new WaitForSeconds(_deathPreDuration);
            }

            base.Die();
        }
    }
}