// WL-816a 실측 프로브 — 씬의 렌더링 구성 전수 + 에디트 모드 오프스크린 캡처
// 원본은 한 글자도 고치지 않는다(열기만 하고 저장 안 함).
public static class WL816a_Probe
{
    // ── 씬 1개 전수 조사 ────────────────────────────────────────────────
    public static void Run()
    {
        string[] scenes =
        {
            "Assets/FarmingIsland/Scenes/Level01.unity",
            "Assets/3DPixelArtEnvironment/Demo/Demo.unity",
        };
        var sb = new System.Text.StringBuilder();
        for (int i = 0; i < scenes.Length; i++) Scan(scenes[i], sb);
        UnityEngine.Debug.Log(sb.ToString());
    }

    public static void Scan(string path, System.Text.StringBuilder sb)
    {
        var sc = UnityEditor.SceneManagement.EditorSceneManager.OpenScene(
            path, UnityEditor.SceneManagement.OpenSceneMode.Single);
        Report(path, sb);
    }

    public static void Report(string label, System.Text.StringBuilder sb)
    {
        var rends = UnityEngine.Object.FindObjectsByType<UnityEngine.Renderer>(
            UnityEngine.FindObjectsInactive.Exclude, UnityEngine.FindObjectsSortMode.None);
        var mats = new System.Collections.Generic.Dictionary<UnityEngine.Material, int>();
        var shaders = new System.Collections.Generic.Dictionary<string, int>();
        var texMats = new System.Collections.Generic.List<string>();
        long tris = 0; int slots = 0; int nMeshRend = 0, nSkinned = 0, nPart = 0;

        for (int i = 0; i < rends.Length; i++)
        {
            var r = rends[i];
            if (r is UnityEngine.ParticleSystemRenderer) { nPart++; continue; }
            var mr = r as UnityEngine.MeshRenderer;
            var sk = r as UnityEngine.SkinnedMeshRenderer;
            UnityEngine.Mesh mesh = null;
            if (mr != null) { nMeshRend++; var mf = r.GetComponent<UnityEngine.MeshFilter>(); if (mf != null) mesh = mf.sharedMesh; }
            else if (sk != null) { nSkinned++; mesh = sk.sharedMesh; }
            if (mesh != null) { for (int s = 0; s < mesh.subMeshCount; s++) tris += mesh.GetIndexCount(s) / 3; }
            var ms = r.sharedMaterials;
            for (int m = 0; m < ms.Length; m++)
            {
                if (ms[m] == null) continue;
                slots++;
                int c; mats.TryGetValue(ms[m], out c); mats[ms[m]] = c + 1;
                string sn = ms[m].shader != null ? ms[m].shader.name : "<null>";
                int c2; shaders.TryGetValue(sn, out c2); shaders[sn] = c2 + 1;
            }
        }
        foreach (var kv in mats)
        {
            var m = kv.Key;
            string tex = "";
            if (m.HasProperty("_BaseMap") && m.GetTexture("_BaseMap") != null) tex += "BaseMap=" + m.GetTexture("_BaseMap").name + " ";
            if (m.HasProperty("_MainTex") && m.GetTexture("_MainTex") != null) tex += "MainTex=" + m.GetTexture("_MainTex").name + " ";
            texMats.Add(string.Format("      {0,-22} x{1,-3} sh={2,-42} {3}", m.name, kv.Value,
                m.shader != null ? m.shader.name : "?", tex.Length > 0 ? tex : "<단색>"));
        }

        var lights = UnityEngine.Object.FindObjectsByType<UnityEngine.Light>(
            UnityEngine.FindObjectsInactive.Exclude, UnityEngine.FindObjectsSortMode.None);
        var cams = UnityEngine.Object.FindObjectsByType<UnityEngine.Camera>(
            UnityEngine.FindObjectsInactive.Exclude, UnityEngine.FindObjectsSortMode.None);
        var vols = UnityEngine.Object.FindObjectsByType<UnityEngine.Rendering.Volume>(
            UnityEngine.FindObjectsInactive.Exclude, UnityEngine.FindObjectsSortMode.None);

        sb.AppendLine("===== " + label + " =====");
        sb.AppendLine(string.Format("  렌더러 {0} (Mesh {1} / Skinned {2} / Particle {3}) · 머티리얼 슬롯 {4} · 고유 머티리얼 {5} · 삼각형 {6:N0}",
            rends.Length, nMeshRend, nSkinned, nPart, slots, mats.Count, tris));
        sb.AppendLine("  셰이더별 슬롯:");
        foreach (var kv in shaders) sb.AppendLine(string.Format("      {0,-46} x{1}", kv.Key, kv.Value));
        sb.AppendLine("  머티리얼 전수:");
        texMats.Sort();
        for (int i = 0; i < texMats.Count; i++) sb.AppendLine(texMats[i]);
        sb.AppendLine(string.Format("  라이트 {0}:", lights.Length));
        for (int i = 0; i < lights.Length; i++)
            sb.AppendLine(string.Format("      {0,-18} type={1} color={2} I={3} shadows={4} rot={5} urpData={6}",
                lights[i].name, lights[i].type, lights[i].color.ToString("F4"),
                lights[i].intensity, lights[i].shadows, lights[i].transform.rotation.eulerAngles.ToString("F3"),
                lights[i].GetComponent<UnityEngine.Rendering.Universal.UniversalAdditionalLightData>() != null));
        sb.AppendLine(string.Format("  카메라 {0}:", cams.Length));
        for (int i = 0; i < cams.Length; i++)
        {
            var c = cams[i];
            var acd = c.GetComponent<UnityEngine.Rendering.Universal.UniversalAdditionalCameraData>();
            sb.AppendLine(string.Format("      {0,-18} ortho={1} size={2} fov={3} near={4} far={5} clear={6} bg={7} pos={8} euler={9} urpData={10} post={11}",
                c.name, c.orthographic, c.orthographicSize, c.fieldOfView, c.nearClipPlane, c.farClipPlane, c.clearFlags,
                c.backgroundColor, c.transform.position.ToString("F3"), c.transform.rotation.eulerAngles.ToString("F3"),
                acd != null, acd != null ? acd.renderPostProcessing.ToString() : "-"));
        }
        sb.AppendLine(string.Format("  Volume {0} · Terrain {1}", vols.Length,
            UnityEngine.Terrain.activeTerrain != null ? UnityEngine.Terrain.activeTerrain.name : "<없음>"));
        sb.AppendLine(string.Format("  RenderSettings: fog={0} ambMode={1} ambSky={2} ambEq={3} ambGnd={4} ambI={5} skybox={6} reflMode={7} reflI={8} sun={9}",
            UnityEngine.RenderSettings.fog, UnityEngine.RenderSettings.ambientMode,
            UnityEngine.RenderSettings.ambientSkyColor, UnityEngine.RenderSettings.ambientEquatorColor,
            UnityEngine.RenderSettings.ambientGroundColor, UnityEngine.RenderSettings.ambientIntensity,
            UnityEngine.RenderSettings.skybox != null ? UnityEngine.RenderSettings.skybox.name : "<없음>",
            UnityEngine.RenderSettings.defaultReflectionMode, UnityEngine.RenderSettings.reflectionIntensity,
            UnityEngine.RenderSettings.sun != null ? UnityEngine.RenderSettings.sun.name : "<없음>"));
    }

    public const string Dir = "Screenshots_WL/WL816a/";

    public static void ShotLevel01()
    {
        UnityEditor.SceneManagement.EditorSceneManager.OpenScene(
            "Assets/FarmingIsland/Scenes/Level01.unity", UnityEditor.SceneManagement.OpenSceneMode.Single);
        Shot(Dir + "a_orig_level01.png", "MainCamera", 1080, 1920);
    }

    public static void ShotDemo()
    {
        UnityEditor.SceneManagement.EditorSceneManager.OpenScene(
            "Assets/3DPixelArtEnvironment/Demo/Demo.unity", UnityEditor.SceneManagement.OpenSceneMode.Single);
        Shot(Dir + "x_demo.png", "Main Camera", 1080, 1920);
    }

    // ── 에디트 모드 오프스크린 캡처 (UI 캔버스가 안 끼어든다) ───────────
    /// <summary>현재 열린 씬의 카메라로 오프스크린 렌더 → PNG. 인자: 저장경로, 카메라이름(비우면 첫 카메라), w, h</summary>
    public static void Shot(string savePath, string camName, int w, int h)
    {
        var cams = UnityEngine.Object.FindObjectsByType<UnityEngine.Camera>(
            UnityEngine.FindObjectsInactive.Exclude, UnityEngine.FindObjectsSortMode.None);
        UnityEngine.Camera cam = null;
        for (int i = 0; i < cams.Length; i++) if (string.IsNullOrEmpty(camName) || cams[i].name == camName) { cam = cams[i]; break; }
        if (cam == null) { UnityEngine.Debug.Log("[WL816a] 카메라 없음"); return; }
        ShotFrom(cam, savePath, w, h);
    }

    public static void ShotFrom(UnityEngine.Camera cam, string savePath, int w, int h)
    {
        var rt = new UnityEngine.RenderTexture(w, h, 24, UnityEngine.RenderTextureFormat.ARGB32,
            UnityEngine.RenderTextureReadWrite.sRGB);
        rt.antiAliasing = 1;
        var prevT = cam.targetTexture; var prevA = UnityEngine.RenderTexture.active;
        cam.targetTexture = rt;
        cam.Render();
        UnityEngine.RenderTexture.active = rt;
        var tex = new UnityEngine.Texture2D(w, h, UnityEngine.TextureFormat.RGB24, false);
        tex.ReadPixels(new UnityEngine.Rect(0, 0, w, h), 0, 0);
        tex.Apply();
        UnityEngine.RenderTexture.active = prevA;
        cam.targetTexture = prevT;
        var bytes = UnityEngine.ImageConversion.EncodeToPNG(tex);
        var dir = System.IO.Path.GetDirectoryName(savePath);
        if (!System.IO.Directory.Exists(dir)) System.IO.Directory.CreateDirectory(dir);
        System.IO.File.WriteAllBytes(savePath, bytes);
        UnityEngine.Object.DestroyImmediate(tex);
        UnityEngine.Object.DestroyImmediate(rt);
        UnityEngine.Debug.Log("[WL816a] 캡처 " + savePath + " (" + w + "x" + h + ")");
    }
}