// WL-814k 실측 조사 ③ — Humanoid/Generic 샘플링 경로 확정 (읽기만)
//   run: unity command run_script --file AgentScripts/WL814k_Survey3.cs --entry WL814k_Survey3.Run

using System;
using System.IO;
using System.Text;
using UnityEditor;
using UnityEngine;

public static class WL814k_Survey3
{
    const string kTxt = "AgentScripts/WL814k_SURVEY3.txt";
    static StringBuilder s_sb;
    static void L(string s) { s_sb.AppendLine(s); Debug.Log("[WL814k] " + s); }

    public static void Run()
    {
        s_sb = new StringBuilder();
        L("WL-814k 실측 ③ 샘플링 · " + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
        try
        {
            Test("Assets/Res_Addr/PC/Ai01.prefab", new[] { "Idle", "Run", "Atk2_wing", "LightHit", "death_F3441" });
            Test("Assets/Res_Addr/Mobs/Mob/Batty_A.prefab", new[] { "Idle", "Move", "Attack", "Damage", "Die" });
        }
        catch (Exception ex) { L("EXCEPTION " + ex); }
        finally { if (AnimationMode.InAnimationMode()) AnimationMode.StopAnimationMode(); }
        File.WriteAllText(kTxt, s_sb.ToString(), new UTF8Encoding(false));
        Debug.Log("[WL814k] → " + kTxt);
    }

    static void Test(string prefab, string[] clipNames)
    {
        L("");
        L("== " + prefab + " ==");
        var src = AssetDatabase.LoadAssetAtPath<GameObject>(prefab);
        var inst = (GameObject)PrefabUtility.InstantiatePrefab(src);
        inst.transform.position = Vector3.zero; inst.transform.rotation = Quaternion.identity;
        try
        {
            var anim = inst.GetComponentInChildren<Animator>(true);
            var rac = anim.runtimeAnimatorController;
            foreach (var name in clipNames)
            {
                AnimationClip clip = null;
                foreach (var c in rac.animationClips) if (c.name == name) { clip = c; break; }
                if (clip == null) { L("  " + name + " → 클립 없음"); continue; }

                // ⓐ AnimationMode 경로
                float aSpread = Spread(inst, clip, true);
                // ⓑ clip.SampleAnimation 경로
                float bSpread = Spread(inst, clip, false);
                L(string.Format("  {0,-14} len {1,5:0.00}s · AnimationMode Δbounds {2:0.0000} m · SampleAnimation Δbounds {3:0.0000} m",
                    name, clip.length, aSpread, bSpread));
            }
        }
        finally { if (AnimationMode.InAnimationMode()) AnimationMode.StopAnimationMode(); UnityEngine.Object.DestroyImmediate(inst); }
    }

    // 클립을 8등분해 찍고, 전체 렌더러 바운드 중심의 최대 이동량(= 실제로 포즈가 바뀌었는가)
    static float Spread(GameObject inst, AnimationClip clip, bool useAnimationMode)
    {
        var rs = inst.GetComponentsInChildren<SkinnedMeshRenderer>(true);
        Vector3 min = Vector3.positiveInfinity, max = Vector3.negativeInfinity;
        for (int i = 0; i < 8; i++)
        {
            float t = clip.length * i / 8f;
            if (useAnimationMode)
            {
                AnimationMode.StartAnimationMode();
                AnimationMode.BeginSampling();
                AnimationMode.SampleAnimationClip(inst, clip, t);
                AnimationMode.EndSampling();
                AnimationMode.StopAnimationMode();
            }
            else
            {
                clip.SampleAnimation(inst, t);
            }
            Bounds b = new Bounds(); bool any = false;
            foreach (var r in rs) { if (!any) { b = r.bounds; any = true; } else b.Encapsulate(r.bounds); }
            if (!any) continue;
            min = Vector3.Min(min, b.min); max = Vector3.Max(max, b.max);
        }
        if (float.IsInfinity(min.x)) return -1f;
        return (max - min).magnitude;
    }
}