using System.Text;
using UnityEditor;
using UnityEngine;

public static class InspectMaleExplorerMesh
{
    public static string Execute()
    {
        const string fbx = "Assets/Bundles/Characters/MaleExplorer/MaleExplorer.fbx";
        const string prefabPath = "Assets/Bundles/Characters/MaleExplorer/MaleExplorer.prefab";
        var sb = new StringBuilder();

        foreach (var obj in AssetDatabase.LoadAllAssetsAtPath(fbx))
        {
            if (obj is Mesh mesh)
            {
                sb.AppendLine(
                    $"assetMesh={mesh.name} verts={mesh.vertexCount} bounds={mesh.bounds} " +
                    $"tris={mesh.triangles.Length / 3}");
            }
        }

        var prefab = AssetDatabase.LoadAssetAtPath<GameObject>(prefabPath);
        var go = (GameObject)PrefabUtility.InstantiatePrefab(prefab);
        go.transform.position = Vector3.zero;
        go.transform.localScale = Vector3.one;
        foreach (var mf in go.GetComponentsInChildren<MeshFilter>(true))
        {
            var m = mf.sharedMesh;
            if (m == null) continue;
            sb.AppendLine($"filter={mf.name} localScale={mf.transform.lossyScale} meshBounds={m.bounds} worldBounds={mf.GetComponent<Renderer>().bounds}");
            // sample a few verts
            var vs = m.vertices;
            var min = vs[0];
            var max = vs[0];
            for (int i = 1; i < vs.Length; i++)
            {
                min = Vector3.Min(min, vs[i]);
                max = Vector3.Max(max, vs[i]);
            }
            sb.AppendLine($"vertMin={min} vertMax={max} size={max - min}");
        }

        Object.DestroyImmediate(go);
        return sb.ToString();
    }
}