using System.Collections.Generic;
using UnityEngine;
using Micosmo.SensorToolkit;

namespace BaseGames.Enemies.Perception
{
    /// <summary>
    /// 敌人感知 Hub（架构 07_EnemyModule §9）。
    /// 集中暴露挂载在敌人 Prefab 上的各种 SensorToolkit Sensor，BD 任务通过
    /// 字符串槽位查询，避免在 BD 任务 Inspector 中拖具体 Sensor 引用。
    ///
    /// 典型槽位命名约定：
    /// - "aggro"         : RangeSensor2D，玩家入侵警戒圈
    /// - "attack_melee"  : RangeSensor2D，近战触发距离
    /// - "attack_range"  : RangeSensor2D，远程触发距离
    /// - "los"           : LOSSensor2D，视线
    /// - "wall_ahead"    : RaySensor2D，前方墙体检测
    /// - "ledge"         : RaySensor2D，前方悬崖检测
    /// </summary>
    [DisallowMultipleComponent]
    public sealed class EnemySensorHub : MonoBehaviour, IPerceptionSystem
    {
        [System.Serializable]
        public struct SensorSlot
        {
            public string slotName;
            public Sensor sensor;
        }

        [SerializeField] private SensorSlot[] _slots;

        private Dictionary<string, Sensor> _map;

        private void Awake()
        {
            _map = new Dictionary<string, Sensor>(_slots?.Length ?? 0);
            if (_slots == null) return;
            for (int i = 0; i < _slots.Length; i++)
            {
                var s = _slots[i];
                if (s.sensor != null && !string.IsNullOrEmpty(s.slotName))
                    _map[s.slotName] = s.sensor;
            }
        }

        public Sensor Get(string slotName)
        {
            if (_map == null || string.IsNullOrEmpty(slotName)) return null;
            _map.TryGetValue(slotName, out var s);
            return s;
        }

        public bool IsDetecting(string slotName, GameObject target)
        {
            var s = Get(slotName);
            return s != null && target != null && s.IsDetected(target);
        }

        public bool HasAnyDetection(string slotName)
        {
            var s = Get(slotName);
            if (s == null) return false;
            foreach (var _ in s.Detections) return true;
            return false;
        }

        public GameObject GetFirstDetection(string slotName)
        {
            var s = Get(slotName);
            if (s == null) return null;
            foreach (var go in s.Detections) return go;
            return null;
        }

        /// <summary>
        /// 暂停或恢复所有插槽的 Sensor。
        /// 当敌人超出 QuotaManager 活跃范围时调用（关闭），归入活跃范围时恢复（开启）。
        /// </summary>
        public void SetSuspended(bool suspended)
        {
            if (_slots == null) return;
            for (int i = 0; i < _slots.Length; i++)
            {
                var sensor = _slots[i].sensor;
                if (sensor != null) sensor.enabled = !suspended;
            }
        }
    }
}