using System.Globalization;
using System.Text;
using UnityEditor;
using UnityEngine;

public static class FixAndDiagnoseMaleExplorer
{
    public static string Diagnose()
    {
        const string fbx = "Assets/Bundles/Characters/MaleExplorer/MaleExplorer.fbx";
        var sb = new StringBuilder();
        var importer = AssetImporter.GetAtPath(fbx) as ModelImporter;
        if (importer != null)
        {
            sb.AppendLine($"globalScale={importer.globalScale} useFileScale={importer.useFileScale} " +
                          $"bakeAxisConversion={importer.bakeAxisConversion} " +
                          $"meshCompression={importer.meshCompression}");
        }

        foreach (var obj in AssetDatabase.LoadAllAssetsAtPath(fbx))
        {
            if (obj is not Mesh mesh) continue;
            var vs = mesh.vertices;
            var min = vs[0];
            var max = vs[0];
            for (var i = 1; i < vs.Length; i++)
            {
                min = Vector3.Min(min, vs[i]);
                max = Vector3.Max(max, vs[i]);
            }
            var size = max - min;
            sb.AppendLine(string.Format(CultureInfo.InvariantCulture,
                "mesh={0} verts={1} min=({2:F6},{3:F6},{4:F6}) max=({5:F6},{6:F6},{7:F6}) size=({8:F6},{9:F6},{10:F6})",
                mesh.name, vs.Length, min.x, min.y, min.z, max.x, max.y, max.z, size.x, size.y, size.z));
        }
        return sb.ToString();
    }

    public static string FixImportAndPrefab()
    {
        const string fbx = "Assets/Bundles/Characters/MaleExplorer/MaleExplorer.fbx";
        var importer = AssetImporter.GetAtPath(fbx) as ModelImporter;
        if (importer == null) return "no importer";

        // Blender 已按米导出时，关掉 Unity 默认 0.01 厘米换算
        importer.globalScale = 1f;
        importer.useFileScale = false;
        importer.bakeAxisConversion = true;
        importer.materialImportMode = ModelImporterMaterialImportMode.None;
        importer.SaveAndReimport();

        // 重建 Prefab
        return SetupM3Character.SetupAll() + " | " + Diagnose();
    }
}