using System;
using System.Collections.Generic;
using Cielonos.MainGame.Buffs.Character;
using Opsive.BehaviorDesigner.Runtime.Tasks;
using Opsive.GraphDesigner.Runtime;
using Opsive.GraphDesigner.Runtime.Variables;
using Opsive.Shared.Utility;
using UnityEngine;

namespace Cielonos.MainGame.Characters.AI
{
    [Description("向指定目标（或自身）施加一个 Buff。使用 [SerializeReference] 多态配置，在检查器中下拉选择 Buff 类型，并直接编辑其参数。")]
    [NodeIcon("Assets/Sprites/Icon/Play.png")]
    [Category("Cielonos/Buffs")]
    public class ApplyBuff : AutomataActionBase
    {
        [Tooltip("施加 Buff 的目标对象列表。如果留空，则默认施加给 AI 自身。")]
        public List<SharedVariable<GameObject>> targetList;

        [Tooltip("选择要施加的 Buff 类型并配置其参数。")]
        [SerializeReference]
        public ICharacterBuffFactory buffFactory;

        public override TaskStatus OnUpdate()
        {
            if (buffFactory == null)
            {
                Debug.LogWarning("[ApplyBuff] 未配置 Buff 工厂，请在检查器中选择一个 Buff 类型。");
                return TaskStatus.Failure;
            }

            if (targetList != null && targetList.Count > 0)
            {
                foreach (var sharedTarget in targetList)
                {
                    if (sharedTarget == null || sharedTarget.Value == null) continue;

                    var character = sharedTarget.Value.GetComponent<CharacterBase>();
                    if (character != null)
                    {
                        buffFactory.Create().Apply(character, self);
                    }
                    else
                    {
                        Debug.LogWarning($"[ApplyBuff] 目标 {sharedTarget.Value.name} 上未找到 CharacterBase 组件，已跳过。");
                    }
                }
            }
            else
            {
                // 留空则默认施加给自身
                buffFactory.Create().Apply(self, self);
            }

            return TaskStatus.Success;
        }

        public override void Reset()
        {
            base.Reset();
            targetList = null;
            buffFactory = null;
        }
    }
}