GLTF export - link texture to model?

thanks for letting me know
i wrote a small unity script that is crawling threw the textures of your project and crates a new material. it highly depends on how the assets and textures are named. so it wont work for everyone, but still. here it is:
Code:
using System.Collections;
using System.IO;
using System.Collections.Generic;
using UnityEditor;
using UnityEngine;

public class MaterialImporter : MonoBehaviour
{
    public string basecolor;
    public string normal;
    public string metallic;
    private void Reset() {
        Search();
    }
    public void Search() {

        //  Debug.Log("lets go!" + gameObject.name);
        basecolor = null;
        normal = null;
        metallic = null;
        string[] results;

        results = AssetDatabase.FindAssets(gameObject.name);
        foreach (string guid in results) {           
            // Debug.Log("testI: " + AssetDatabase.GUIDToAssetPath(guid));
        }

        
        foreach (string guidone in results) {
            if (AssetDatabase.GUIDToAssetPath(guidone).Contains("basecolor")) {
                if (basecolor == null) {
                    basecolor = AssetDatabase.GUIDToAssetPath(guidone);
                    Debug.Log("base: " + AssetDatabase.GUIDToAssetPath(guidone));
                }              
            }
            if (AssetDatabase.GUIDToAssetPath(guidone).Contains("normal")) {
               // normal = guidone;
                if (normal == null) {
                    normal = AssetDatabase.GUIDToAssetPath(guidone);
                     Debug.Log("normal: " + AssetDatabase.GUIDToAssetPath(guidone));
                }
            }
            if (AssetDatabase.GUIDToAssetPath(guidone).Contains("metallic")) {
                //metallic = guidone;
                if (metallic == null) {
                    metallic = AssetDatabase.GUIDToAssetPath(guidone);
                      Debug.Log("metallic: " + AssetDatabase.GUIDToAssetPath(guidone));
                }
            }
        }

        Material material = new Material(Shader.Find("Standard"));
        AssetDatabase.CreateAsset(material, "Assets/" + gameObject.name + ".mat");

        var rend = gameObject.GetComponent<Renderer>();

        TextureImporter importer = (TextureImporter)TextureImporter.GetAtPath(normal);
        importer.textureType = TextureImporterType.NormalMap;

        Texture2D basecl = (Texture2D)AssetDatabase.LoadAssetAtPath(basecolor, typeof(Texture2D));
        Texture2D normalmap = (Texture2D)AssetDatabase.LoadAssetAtPath(normal, typeof(Texture2D));
        Texture2D metall = (Texture2D)AssetDatabase.LoadAssetAtPath(metallic, typeof(Texture2D));
      

        Material m = (Material)AssetDatabase.LoadAssetAtPath("Assets/" + gameObject.name + ".mat", typeof(Material));
    
        m.SetTexture("_MainTex", basecl);
        m.SetTexture("_BumpMap", normalmap);
        m.SetTexture("_MetallicGlossMap", metall);

        m.SetFloat("_Glossiness", 0);
        m.SetFloat("_Metallic", 0);
        m.SetFloat("_GlossMapScale", 0.5f);
        rend.sharedMaterial = m;

        Prefab();
      
    }
    public void Prefab() {
    
            // and name it as the GameObject's name with the .Prefab format
            string localPath = "Assets/Prefabs" + gameObject.name + ".prefab";

        // Make sure the file name is unique, in case an existing Prefab has the same name.
        localPath = AssetDatabase.GenerateUniqueAssetPath(localPath);

        // Create the new Prefab.
        PrefabUtility.SaveAsPrefabAssetAndConnect(gameObject, localPath, InteractionMode.UserAction);

       // DestroyImmediate(gameObject);
    }
  
}
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