#if UNITY_EDITOR
using UnityEditor;
using UnityEngine;
using System.Collections.Generic;

[InitializeOnLoad]
public class PlatformMeshCompression : AssetPostprocessor
{
    // Map GUIDs to compression settings: (PC, Android)
    static readonly Dictionary<string, (ModelImporterMeshCompression pc, ModelImporterMeshCompression android)> compressionMap
        = new Dictionary<string, (ModelImporterMeshCompression, ModelImporterMeshCompression)>
    {
        { "e82fc872936dfa44a8653aab54da1bba", (ModelImporterMeshCompression.Off, ModelImporterMeshCompression.Medium) },
    };

    static PlatformMeshCompression()
    {
        EditorApplication.delayCall += ReimportMappedAssets;
    }

    static void ReimportMappedAssets()
    {
        foreach (var guid in compressionMap.Keys)
        {
            string path = AssetDatabase.GUIDToAssetPath(guid);
            if (!string.IsNullOrEmpty(path))
            {
                AssetDatabase.ImportAsset(path, ImportAssetOptions.ForceUpdate);
            }
        }
    }

    void OnPreprocessModel()
    {
        var modelImporter = (ModelImporter)assetImporter;
        string guid = AssetDatabase.AssetPathToGUID(assetPath);

        if (compressionMap.TryGetValue(guid, out var compressions))
        {
#if UNITY_ANDROID
            modelImporter.meshCompression = compressions.android;
#else
            modelImporter.meshCompression = compressions.pc;
#endif
        }
    }
}
#endif