using System;
using System.Collections.Generic;
using UnityEngine;
using Sirenix.OdinInspector;
using SLSUtilities.Feedback;
using Cielonos.MainGame.Characters;
using Lean.Pool;

namespace Cielonos.MainGame.Effects.Feedback
{
    /// <summary>
    /// 特效生成反馈动作，在 Feedback 轨道上生成指定的 VFX 特效。
    /// 自动根据执行者的 VFXData 配置进行位置偏移、绑定关系处理。
    /// </summary>
    [Serializable]
    [FeedbackActionColor(0.8f, 0.4f, 0.7f)]
    public class SpawnVfxAction : FeedbackActionBase
    {
        public override string DisplayName => "Spawn VFX";

        [Required]
        [Tooltip("特效的 Key 名称，需在角色的 VFXData 配置文件中注册")]
        public string vfxName;

        [LabelText("被打断时停止")]
        [Tooltip("如果为 true，当反馈轨道被打断（如受击、格挡）时，此特效粒子会被立即回收/停止播放。")]
        public bool stopOnInterrupt = true;

        // 运行时状态记录，使用 Dictionary 保证并发/多角色播放时的实例安全
        private readonly Dictionary<FeedbackPlayer, GameObject> _spawnedVFX = new Dictionary<FeedbackPlayer, GameObject>();

        public override void OnStart(FeedbackContext context)
        {
            if (string.IsNullOrEmpty(vfxName) || context.owner == null) return;

            CharacterBase character = context.owner.GetComponent<CharacterBase>();
            if (character != null && character.vfxData != null)
            {
                GameObject vfxInstance = character.vfxData.SpawnVFX(vfxName, character, context.owner);
                if (vfxInstance != null)
                {
                    _spawnedVFX[context.player] = vfxInstance;
                }
            }
        }

        public override void OnInterrupt(FeedbackContext context)
        {
            if (stopOnInterrupt)
            {
                if (_spawnedVFX.TryGetValue(context.player, out GameObject vfxInstance))
                {
                    if (vfxInstance != null)
                    {
                        LeanPool.Despawn(vfxInstance);
                    }
                }
            }
            Cleanup(context);
        }

        public override void OnEnd(FeedbackContext context)
        {
            Cleanup(context);
        }

        private void Cleanup(FeedbackContext context)
        {
            _spawnedVFX.Remove(context.player);
        }

        public override bool Validate(out string error)
        {
            if (string.IsNullOrEmpty(vfxName))
            {
                error = "VFX Name is not assigned.";
                return false;
            }
            error = null;
            return true;
        }
    }
}