using UnityEngine;
using System;
using System.Collections.Generic;
using KindRetargeting;

/// <summary>
/// 아바타 Head 본 콜라이더 자동 생성 및 타겟 관리
/// </summary>
[Serializable]
public class AvatarHeadManager
{
    [Tooltip("아바타 Head 본에 자동으로 SphereCollider를 생성합니다 (DOF 타겟, 레이캐스트 등에 활용)")]
    public bool autoCreateHeadColliders = true;

    [Tooltip("Head 콜라이더 반경")]
    public float headColliderRadius = 0.1f;

    [NonSerialized]
    private List<Transform> avatarHeadTargets = new List<Transform>();

    private Action<string> log;
    private Action<string> logError;

    public void Initialize(Action<string> log, Action<string> logError)
    {
        this.log = log;
        this.logError = logError;

        if (autoCreateHeadColliders)
        {
            RefreshAvatarHeadColliders();
        }
    }

    public void RefreshAvatarHeadColliders()
    {
        avatarHeadTargets.Clear();

        var retargetingScripts = UnityEngine.Object.FindObjectsByType<CustomRetargetingScript>(FindObjectsSortMode.None);
        log?.Invoke($"아바타 Head 콜라이더 검색: CustomRetargetingScript {retargetingScripts.Length}개 발견");

        foreach (var script in retargetingScripts)
        {
            if (script.targetAnimator == null) continue;

            Transform headBone = script.targetAnimator.GetBoneTransform(HumanBodyBones.Head);
            if (headBone == null) continue;

            if (!headBone.TryGetComponent<SphereCollider>(out _))
            {
                var collider = headBone.gameObject.AddComponent<SphereCollider>();
                collider.radius = headColliderRadius;
                collider.isTrigger = true;
                log?.Invoke($"Head 콜라이더 생성: {headBone.name} ({script.targetAnimator.gameObject.name})");
            }

            avatarHeadTargets.Add(headBone);
        }

        log?.Invoke($"총 {avatarHeadTargets.Count}개의 아바타 Head 타겟 등록 완료");
    }

    public List<Transform> GetAvatarHeadTargets()
    {
        return avatarHeadTargets;
    }
}