// WL-816f §2 — 데모 바닥 vs 우리 바닥 실측(에디트 모드 · 데모 씬 Play 안 함)
//   ① 풀 메시의 월드 크기 ② 격자 간격 ③ 풀 머티리얼 색 ④ 바닥 머티리얼 색
public static class WL816f_Ground
{
    public static void Run()
    {
        var sb = new System.Text.StringBuilder();

        // ── 데모 ────────────────────────────────────────────────────
        UnityEditor.SceneManagement.EditorSceneManager.OpenScene(
            "Assets/3DPixelArtEnvironment/Demo/Demo.unity", UnityEditor.SceneManagement.OpenSceneMode.Single);
        sb.AppendLine("=== 데모 (Demo.unity) ===");
        var tibs = UnityEngine.Object.FindObjectsByType<Environment.Instancing.TerrainInstancesBehaviour>(
            UnityEngine.FindObjectsInactive.Include, UnityEngine.FindObjectsSortMode.None);
        foreach (var t in tibs)
        {
            sb.AppendLine("TIB " + t.name + " lossyScale=" + t.transform.lossyScale.ToString("F3")
                + " posVar=" + t.PositionVariance + " scaleVar=" + t.ScaleVariance);
            var terr = t.GetComponent<UnityEngine.Terrain>();
            if (terr != null) sb.AppendLine("   terrain size=" + terr.terrainData.size.ToString("F1")
                + " alphamapTex=" + terr.terrainData.alphamapTextureCount
                + " mat=" + (terr.materialTemplate ? terr.materialTemplate.name + " (" + terr.materialTemplate.shader.name + ")" : "없음"));
            Layer(sb, "1층", t.FirstLayer, t.transform.lossyScale);
            Layer(sb, "2층", t.SecondLayer, t.transform.lossyScale);
            Layer(sb, "3층", t.ThirdLayer, t.transform.lossyScale);
            Layer(sb, "4층", t.FourthLayer, t.transform.lossyScale);
            if (terr != null && terr.materialTemplate != null) MatDump(sb, "   지형mat ", terr.materialTemplate);
        }

        // 데모 지형 스플랫 — 1층(풀)이 차지하는 면적 비율
        foreach (var t in tibs)
        {
            var terr = t.GetComponent<UnityEngine.Terrain>();
            if (terr == null || terr.terrainData.alphamapTextureCount == 0) continue;
            var tex = terr.terrainData.alphamapTextures[0];
            var px = tex.GetPixels();
            int[] cnt = new int[4];
            for (int i = 0; i < px.Length; i++)
            {
                float[] v = { px[i].r, px[i].g, px[i].b, px[i].a };
                int bi = 0; for (int k = 1; k < 4; k++) if (v[k] > v[bi]) bi = k;
                cnt[bi]++;
            }
            sb.AppendLine("   스플랫 지배비율(" + tex.width + "x" + tex.height + "): 1층 " + (100f * cnt[0] / px.Length).ToString("F1")
                + "% · 2층 " + (100f * cnt[1] / px.Length).ToString("F1") + "% · 3층 " + (100f * cnt[2] / px.Length).ToString("F1")
                + "% · 4층 " + (100f * cnt[3] / px.Length).ToString("F1") + "%");
        }

        // ── 우리 ────────────────────────────────────────────────────
        sb.AppendLine();
        sb.AppendLine("=== 우리 (WLIslandLookSettings) ===");
        var cfg = UnityEditor.AssetDatabase.LoadAssetAtPath<WL.Look.Farm.WLIslandLookSettings>(
            "Assets/WL/Look/Farm/Resources/WL/WLIslandLookSettings.asset");
        sb.AppendLine("posVar=" + cfg.positionVariance + " scaleVar=" + cfg.scaleVariance + " edgeInset=" + cfg.edgeInset);
        for (int i = 0; i < cfg.scatter.Length; i++)
        {
            var s = cfg.scatter[i];
            var b = s.mesh != null ? s.mesh.bounds.size : UnityEngine.Vector3.zero;
            sb.AppendLine("  [" + s.label + "] en=" + s.enabled_ + " mesh=" + (s.mesh ? s.mesh.name : "없음")
                + " bounds=" + b.ToString("F3") + " scale=" + s.scale
                + " → 월드 " + (b * s.scale).ToString("F3")
                + " · prob=" + s.probability + " density=" + s.density + "(=" + (s.density * s.density).ToString("F2") + "개/㎡ · 격자 "
                + (1f / s.density).ToString("F3") + "m)"
                + " mat=" + (s.material ? s.material.name : "없음"));
            if (s.material != null) MatDump(sb, "      ", s.material);
        }
        sb.AppendLine("islandTopMaterial = " + (cfg.islandTopMaterial ? cfg.islandTopMaterial.name : "없음"));
        if (cfg.islandTopMaterial != null) MatDump(sb, "   ", cfg.islandTopMaterial);
        for (int i = 0; i < cfg.materialRemap.Length; i++)
        {
            var e = cfg.materialRemap[i];
            sb.AppendLine("  remap en=" + e.enabled_ + " " + (e.from ? e.from.name : "-") + " → " + (e.to ? e.to.name : "-")
                + (e.to != null && e.to.HasProperty("_BaseMap") && e.to.GetTexture("_BaseMap") != null
                    ? "  🔴텍스처 " + e.to.GetTexture("_BaseMap").name : "  (텍스처 없음)"));
        }

        System.IO.File.WriteAllText("AgentScripts/WL816f_GROUND.txt", sb.ToString());
        UnityEngine.Debug.Log(sb.ToString());
    }

    static void Layer(System.Text.StringBuilder sb, string name,
        Environment.Instancing.TerrainInstancesBehaviour.TerrainInstancingInput inp, UnityEngine.Vector3 lossy)
    {
        if (inp == null || inp.Settings == null || inp.Settings.Length == 0) { sb.AppendLine("  " + name + " (없음)"); return; }
        sb.AppendLine("  " + name + " Density=" + inp.Density + " (=" + (inp.Density * inp.Density).ToString("F2")
            + "개/㎡ · 격자 " + (1f / inp.Density).ToString("F3") + "m)");
        foreach (var s in inp.Settings)
        {
            var b = s.Mesh != null ? s.Mesh.bounds.size : UnityEngine.Vector3.zero;
            var w = new UnityEngine.Vector3(b.x * s.Scale * lossy.x, b.y * s.Scale * lossy.y, b.z * s.Scale * lossy.z);
            sb.AppendLine("    mesh=" + (s.Mesh ? s.Mesh.name + "(tri " + (s.Mesh.triangles.Length / 3) + ")" : "없음")
                + " bounds=" + b.ToString("F3") + " Scale=" + s.Scale + " → 월드 " + w.ToString("F3")
                + " prob=" + s.Probability + " nOff=" + s.NormalOffset
                + " mat=" + (s.Material ? s.Material.name : "없음"));
            if (s.Material != null) MatDump(sb, "      ", s.Material);
        }
    }

    static void MatDump(System.Text.StringBuilder sb, string pad, UnityEngine.Material m)
    {
        string[] cols = { "_DiffuseColor", "_ShadowDiffuseColor", "_BaseColor", "_Color", "_TopColor", "_BottomColor", "_TipColor" };
        string[] flts = { "_Shades", "_Brightness", "_MinimumDarkness", "_AmbientStrength", "_Cull", "_WindStrength", "_WindDensity" };
        var s = pad + "shader=" + m.shader.name;
        foreach (var c in cols) if (m.HasProperty(c)) s += " " + c + "=" + Hex(m.GetColor(c));
        foreach (var f in flts) if (m.HasProperty(f)) s += " " + f + "=" + m.GetFloat(f).ToString("F3");
        if (m.HasProperty("_BaseMap")) s += " _BaseMap=" + (m.GetTexture("_BaseMap") ? m.GetTexture("_BaseMap").name : "없음");
        if (m.HasProperty("_ShadowBaseMap")) s += " _ShadowBaseMap=" + (m.GetTexture("_ShadowBaseMap") ? m.GetTexture("_ShadowBaseMap").name : "없음");
        sb.AppendLine(s);
    }

    static string Hex(UnityEngine.Color c)
    {
        return "(" + c.r.ToString("F3") + "," + c.g.ToString("F3") + "," + c.b.ToString("F3") + ")#"
            + UnityEngine.ColorUtility.ToHtmlStringRGB(c);
    }
}