#if UNITY_EDITOR
using System;
using System.IO;
using UnityEditor;
using UnityEditor.Build;
using UnityEditor.Build.Reporting;
using UnityEngine;

[Serializable] class SupabaseClientSecrets { public string url; public string anonKey; }

public class GenerateSupabaseSecretsPrebuild : IPreprocessBuildWithReport
{
    public int callbackOrder => 0;

    public void OnPreprocessBuild(BuildReport report)
    {
        // 1) read from Cloud Build env (populated from project secrets)
        var url = Environment.GetEnvironmentVariable("SUPABASE_URL");
        var anonKey = Environment.GetEnvironmentVariable("SUPABASE_ANON");

        // 2) local dev override (git-ignored)
        var devPath = Path.Combine(Application.dataPath, "Editor/supabase.secrets.dev.json");
        if (File.Exists(devPath))
        {
            try
            {
                var dev = JsonUtility.FromJson<SupabaseClientSecrets>(File.ReadAllText(devPath));
                if (!string.IsNullOrWhiteSpace(dev.url)) url = dev.url;
                if (!string.IsNullOrWhiteSpace(dev.anonKey)) anonKey = dev.anonKey;
            }
            catch { Debug.LogWarning("Invalid supabase.secrets.dev.json; ignoring."); }
        }

        if (string.IsNullOrWhiteSpace(url) || string.IsNullOrWhiteSpace(anonKey))
            throw new BuildFailedException("Missing SUPABASE_URL or SUPABASE_ANON_KEY.");

        var json = JsonUtility.ToJson(new SupabaseClientSecrets { url = url, anonKey = anonKey }, false);

        var resDir = Path.Combine(Application.dataPath, "Resources");
        Directory.CreateDirectory(resDir);
        var outPath = Path.Combine(resDir, "SupabaseClientSecrets.json");
        File.WriteAllText(outPath, json);

        AssetDatabase.ImportAsset(RelativeToProject(outPath));
        Debug.Log("Embedded SupabaseClientSecrets.json");
    }

    static string RelativeToProject(string abs)
    {
        var root = Application.dataPath[..^"Assets".Length];
        return abs.Replace(root, "").Replace("\\", "/");
    }
}
#endif