using UnityEngine;
using BaseGames.Combat;

namespace BaseGames.Player
{
    /// <summary>
    /// 玩家战斗组件。
    /// 架构 05_PlayerModule §5：HitBox 直接挂在 Player Prefab 子节点上，不经过 WeaponInstance。
    /// 节点：[HitBoxGround]、[HitBoxUp]、[HitBoxDown]、[HitBoxAir]。
    /// </summary>
    public class PlayerCombat : MonoBehaviour
    {
        [SerializeField] private WeaponManager _weaponManager;

        [Header("HitBox（Player Prefab 子节点）")]
        [SerializeField] private HitBox _hitBoxGround;
        [SerializeField] private HitBox _hitBoxUp;
        [SerializeField] private HitBox _hitBoxDown;
        [SerializeField] private HitBox _hitBoxAir;

        private PlayerStats _stats;

        private void Awake()
        {
            _stats = GetComponentInParent<PlayerStats>();
        }

        private void OnEnable()
        {
            if (_weaponManager != null)
                _weaponManager.OnWeaponChanged += RefreshWeaponData;
        }

        private void OnDisable()
        {
            if (_weaponManager != null)
                _weaponManager.OnWeaponChanged -= RefreshWeaponData;
        }

        private void RefreshWeaponData(WeaponSO weapon)
        {
            // 武器切换时可在此更新 HitBox 默认尺寸等
        }

        // ── 连击段伤害来源切换 ────────────────────────────────────────────────
        /// <summary>
        /// 根据当前连招段切换 HitBox 的 DamageSource（由 AttackState 在每段开始时调用）。
        /// </summary>
        public void SetComboSegmentSource(int comboIndex)
        {
            WeaponSO w = _weaponManager?.ActiveWeapon;
            if (w == null) return;

            DamageSourceSO src = comboIndex switch
            {
                0 => w.attack1Source,
                1 => w.attack2Source,
                2 => w.attack3Source,
                _ => w.attack1Source,
            };
            _hitBoxGround?.SetDamageSource(src);
        }

        // ── HitBox 激活（由 State / AnimationEvent 调用）─────────────────────
        public void EnableWeaponHitBox(AttackDirection dir)
        {
            var source = _weaponManager?.ActiveWeapon?.GetSourceByDir(dir);
            GetHitBox(dir)?.Activate(source, transform);
        }

        public void DisableWeaponHitBox(AttackDirection dir)
            => GetHitBox(dir)?.Deactivate();

        public void DisableAllWeaponHitBoxes()
        {
            _hitBoxGround?.Deactivate();
            _hitBoxUp?.Deactivate();
            _hitBoxDown?.Deactivate();
            _hitBoxAir?.Deactivate();
        }

        /// <summary>命中确认回调：增加灵力（由 HurtBox.ReceiveDamage 步骤 7 的 HitConfirmed 事件订阅）。</summary>
        public void OnHitConfirmed(DamageInfo info)
        {
            int gain = _weaponManager?.ActiveWeapon?.soulPowerGain ?? 10;
            _stats?.AddSoulPower(gain);
        }

        private HitBox GetHitBox(AttackDirection dir) => dir switch
        {
            AttackDirection.Ground => _hitBoxGround,
            AttackDirection.Up     => _hitBoxUp,
            AttackDirection.Down   => _hitBoxDown,
            AttackDirection.Air    => _hitBoxAir,
            _                      => null,
        };
    }
}