// Assets/Scripts/World/Puzzle/PuzzleWire.cs
// 逻辑连接器：将一组 PuzzleSwitch 连接到 PuzzleReceiver（Architecture 21_LiquidPuzzleModule §11）
// 支持 AND / OR / XOR 激活逻辑，Inspector 中配置，无需代码
using System.Linq;
using UnityEngine;

namespace BaseGames.Puzzle
{
    public enum LogicType { AND, OR, XOR }

    /// <summary>
    /// 连接一个或多个 PuzzleSwitch 到 PuzzleReceiver。
    /// 支持 AND / OR / XOR 激活逻辑。
    /// 关卡设计师在 Inspector 中配置，无需编写代码。
    /// </summary>
    public class PuzzleWire : MonoBehaviour
    {
        [Header("输入开关")]
        [SerializeField] private PuzzleSwitch[]  _switches;

        [Header("激活逻辑")]
        [SerializeField] private LogicType       _logic    = LogicType.AND;

        [Header("目标接收器")]
        [SerializeField] private PuzzleReceiver  _receiver;

        private void Start()
        {
            if (_switches != null)
                foreach (var sw in _switches)
                    if (sw != null) sw.OnStateChanged += _ => Evaluate();
            Evaluate(); // 初始求值
        }

        private void Evaluate()
        {
            if (_switches == null || _receiver == null) return;

            bool shouldActivate = _logic switch
            {
                LogicType.AND => System.Array.TrueForAll(_switches, s => s != null && s.IsActive),
                LogicType.OR  => System.Array.Exists(_switches, s => s != null && s.IsActive),
                LogicType.XOR => _switches.Count(s => s != null && s.IsActive) % 2 == 1,
                _             => false,
            };

            if (shouldActivate) _receiver.Activate();
            else                _receiver.Deactivate();
        }
    }
}