using UnityEngine;
using BaseGames.Core.Events;
using BaseGames.Combat;

namespace BaseGames.Audio
{
    /// <summary>
    /// 订阅战斗/死亡事件，通过 GlobalSFXPlayer 播放对应 AudioEventSO 音效。
    /// 挂载在 Persistent 场景的 [Systems] GameObject 上。
    /// 使用 AudioEventSO 替代裸 AudioClip，支持随机音量 / 音调 / 多片段。
    /// </summary>
    public class CombatSFXController : MonoBehaviour
    {
        [Header("Event Channels")]
        [SerializeField] private HitConfirmedEventChannelSO _onHitConfirmed;
        [SerializeField] private VoidEventChannelSO         _onPlayerDied;

        [Header("Default Hit SFX")]
        [SerializeField] private AudioEventSO _defaultHitSFX;

        [Header("Per-Type Hit SFX (optional, overrides default)")]
        [SerializeField] private AudioEventSO _sparkHitSFX;
        [SerializeField] private AudioEventSO _slashHitSFX;
        [SerializeField] private AudioEventSO _bloodHitSFX;
        [SerializeField] private AudioEventSO _magicHitSFX;
        [SerializeField] private AudioEventSO _heavyHitSFX;
        [SerializeField] private AudioEventSO _critHitSFX;
        [SerializeField] private AudioEventSO _parryHitSFX;
        [SerializeField] private AudioEventSO _fireHitSFX;
        [SerializeField] private AudioEventSO _iceHitSFX;

        [Header("Death SFX")]
        [SerializeField] private AudioEventSO _playerDeathSFX;

        private readonly CompositeDisposable _subs = new();

        private void OnEnable()
        {
            _onHitConfirmed?.Subscribe(HandleHit).AddTo(_subs);
            _onPlayerDied?.Subscribe(HandlePlayerDied).AddTo(_subs);
        }

        private void OnDisable()
        {
            _subs.Clear();
        }

        private void HandleHit(HitInfo info)
        {
            AudioEventSO sfx = ResolveHitSFX(info.DamageInfo.FxType);
            if (sfx == null) return;

            GlobalSFXPlayer.Play(sfx, info.HitPoint);
        }

        private void HandlePlayerDied()
        {
            if (_playerDeathSFX == null) return;
            GlobalSFXPlayer.Play(_playerDeathSFX);
        }

        private AudioEventSO ResolveHitSFX(HitFxType fxType)
        {
            AudioEventSO perType = fxType switch
            {
                HitFxType.Spark  => _sparkHitSFX,
                HitFxType.Slash  => _slashHitSFX,
                HitFxType.Blood  => _bloodHitSFX,
                HitFxType.Magic  => _magicHitSFX,
                HitFxType.Heavy  => _heavyHitSFX,
                HitFxType.Crit   => _critHitSFX,
                HitFxType.Parry  => _parryHitSFX,
                HitFxType.Fire   => _fireHitSFX,
                HitFxType.Ice    => _iceHitSFX,
                _                => null
            };

            return perType != null ? perType : _defaultHitSFX;
        }
    }
}