using System;
using UnityEngine;

namespace BaseGames.Enemies
{
    /// <summary>
    /// 受击分级配置（KnockUp 击飞门槛 & 飞行参数）。
    /// 挂载在 EnemyStatsSO.HitTiers 中。
    /// </summary>
    [Serializable]
    public struct HitTierConfig
    {
        [Tooltip("重击（Stagger）触发伤害阈值；伤害 &gt;= 此值进入 Stagger")]
        [Min(0)] public int heavyHitThreshold;
        [Tooltip("击飞（KnockUp）触发伤害阈值；需同时设置 DamageFlags.Launch；0 = 仅依赖 Launch 标志")]
        [Min(0)] public int launchThreshold;
        [Tooltip("击飞纵向冲量")]
        [Min(0f)] public float launchUpForce;
        [Tooltip("击飞横向冲量（沿受击反方向）")]
        [Min(0f)] public float launchHorzForce;
        [Tooltip("无 KnockUp 动画时的状态持续时长（s）")]
        [Min(0f)] public float knockUpDuration;
    }

    /// <summary>
    /// 敌人属性配置 SO（架构 07_EnemyModule §2）。
    /// </summary>
    [CreateAssetMenu(menuName = "BaseGames/Enemies/EnemyStats")]
    public class EnemyStatsSO : ScriptableObject
    {
        [Header("生命")]
        [Min(1)] public int MaxHP = 50;

        [Header("防御")]
        [Min(0)] public int Defense = 0;

        [Header("移动")]
        [Min(0f)] public float WalkSpeed  = 2f;
        [Min(0f)] public float RunSpeed   = 4f;

        [Header("战斗")]
        [Min(0)] public int   AttackDamage    = 10;
        [Min(0f)] public float AttackRange     = 1.5f;
        [Min(0f)] public float AttackCooldown  = 1f;
        [Min(0f)] public float DetectRange     = 6f;

        [Header("追击 & AI 阶段")]
        [Tooltip("最大追击距离（m）；超出后放弃追击切换搜查阶段")]
        [Min(0f)] public float MaxChaseDistance    = 15f;
        [Tooltip("视线丢失判定超时（s）；超过此时长无视线则切换搜查")]
        [Min(0f)] public float LoseLinkTimeout     = 2f;
        [Tooltip("Alert 阶段持续时长（s）；短暂警觉动作后进入追击")]
        [Min(0f)] public float AlertDuration       = 0.6f;
        [Tooltip("搜查最后可见位置后的等待时长（s）")]
        [Min(0f)] public float InvestigateDuration = 3f;
        [Tooltip("归位到达判定半径（m）")]
        [Min(0.01f)] public float HomeRadius          = 0.5f;

        [Header("击退（作为来源时）")]
        [Min(0f)] public float KnockbackForce      = 5f;
        [Min(0f)] public float HitStunDuration     = 0.3f;

        [Header("受击分级")]
        [Tooltip("Stagger / KnockUp 伤害阈值及击飞参数")]
        public HitTierConfig HitTiers;

        [Header("视线检测（遗留配置，已迁移到 PhysicsPerceptionSystem 各 Slot 的 losBlockMask）")]
        [Tooltip("相对 transform.position 的眼睛偏移量")]
        public Vector2   EyeOffset       = new Vector2(0f, 0.8f);
        [Tooltip("遮挡 LOS 的物理图层")]
        public LayerMask LOSBlockingMask = 1; // Default layer

        [Header("感知角度")]
        [Tooltip("前向感知扇形半角（度）。0 = 关闭方向检查，按完整圆形感知")]
        [Range(0f, 180f)]
        public float DetectAngleDeg = 0f;

        [Header("警戒传播（Group Alert）")]
        [Tooltip("发现玩家时通知周围同伴进入 Alert 的半径（m）；0 = 关闭")]
        [Min(0f)]
        public float AlertBroadcastRadius = 0f;
    }
}