// Assets/Scripts/World/Puzzle/PuzzleReceiver.cs
using BaseGames.World;
using MoreMountains.Feedbacks;
using UnityEngine;

namespace BaseGames.Puzzle
{
    /// <summary>
    /// 谜题接收器，由 PuzzleWire 驱动。
    /// 挂在谜题目标物件上（门/平台等），实现 IActivatable。
    /// 子类覆写 OnActivate / OnDeactivate 实现具体行为。
    /// </summary>
    public class PuzzleReceiver : MonoBehaviour, IActivatable
    {
        [SerializeField] private bool               _startsActivated = false;
        [SerializeField] private string             _receiverId;            // 持久化唯一 ID（空串则不持久化）
        [SerializeField] private MMFeedbacks        _activateFeedback;
        [SerializeField] private MMFeedbacks        _deactivateFeedback;

        [Header("持久化（SO 注入，非 Instance 单例）")]
        [SerializeField] private WorldStateRegistry _worldState;

        private bool _isActivated;
        public bool IsActivated => _isActivated;

        protected virtual void Awake()
        {
            bool savedState = !string.IsNullOrEmpty(_receiverId)
                              && _worldState != null
                              && _worldState.HasFlag("receiver_" + _receiverId);
            _isActivated = savedState || _startsActivated;
        }

        protected virtual void Start()
        {
            if (_isActivated) OnActivate();
        }

        public void Activate()
        {
            if (_isActivated) return;
            _isActivated = true;
            _activateFeedback?.PlayFeedbacks();
            OnActivate();

            if (!string.IsNullOrEmpty(_receiverId))
                _worldState?.SetFlag("receiver_" + _receiverId);
        }

        public void Deactivate()
        {
            if (!_isActivated) return;
            _isActivated = false;
            _deactivateFeedback?.PlayFeedbacks();
            OnDeactivate();

            if (!string.IsNullOrEmpty(_receiverId))
                _worldState?.ClearFlag("receiver_" + _receiverId);
        }

        protected virtual void OnActivate()   { }
        protected virtual void OnDeactivate() { }
    }
}