using UnityEngine;
using BaseGames.Core.Events;

namespace BaseGames.Progression
{
    /// <summary>
    /// Boss 进程追踪器（架构 09_ProgressionModule §13）。
    /// 挂载在 Boss 房间的 BossTrigger 同一对象上。
    /// 监听 _onBossDefeated 事件，路由到 SaveSystem 专用频道（零耦合）。
    /// </summary>
    public class BossProgressTracker : MonoBehaviour
    {
        [SerializeField] private string   _bossId;                   // 如 "Boss_SpiderGuard"
        [SerializeField] private string[] _unlocksProgressLockIds;   // 击败后应解锁的 ProgressLock ID（预留）

        [Header("Event Channels")]
        [SerializeField] private StringEventChannelSO _onBossDefeated;        // 监听（来自 BossCombat）
        [SerializeField] private StringEventChannelSO _onBossDefeatedForSave; // 广播 → SaveSystem

        private readonly CompositeDisposable _subs = new();

        private void OnEnable()  => _onBossDefeated?.Subscribe(OnBossDefeated).AddTo(_subs);
        private void OnDisable() => _subs.Clear();

        private void OnBossDefeated(string bossId)
        {
            if (bossId != _bossId) return;

            // 通过事件频道通知 SaveSystem（SaveSystem 负责写入 data.World.DefeatedBossIds）
            _onBossDefeatedForSave?.Raise(bossId);
        }
    }
}