#nullable enable
#if !UNITY_WEBGL || UNITY_EDITOR
using Firebase.Storage;
using System;
using System.Threading;
using UnityEngine;
#endif

public partial class FirebaseFileDownloader
{
#if !UNITY_WEBGL || UNITY_EDITOR

  public static void DownloadFileFirebaseVanilla(
    string targetStorageUrl,
    string localUrl,
    Action<float>? progressCallBack = null,
    Action? finishCallback = null,
    Action<string>? errorCallback = null
    )
  {
    Debug.Log("Downloading file... from " + targetStorageUrl);
    FirebaseStorage storage = FirebaseStorage.DefaultInstance;
    StorageReference storageRef = storage.GetReferenceFromUrl(targetStorageUrl);

    storageRef.GetFileAsync(localUrl, new StorageProgress<DownloadState>(state =>
    {
      progressCallBack?.Invoke((float)state.BytesTransferred / state.TotalByteCount);
    }), CancellationToken.None).ContinueWith(task =>
    {
      if (!task.IsFaulted && !task.IsCanceled)
      {
        Debug.Log("File downloaded.");
      }
      else
      {
        Debug.LogError("Error downloading file: " + task.Exception);
        errorCallback?.Invoke(task.Exception.ToString());
      }
      finishCallback?.Invoke();
    });
  }

  public static void DownloadFileDownloadUrl(
    string targetStorageUrl,
    Action<string>? finishCallback = null,
    Action<string>? errorCallback = null
    )
  {
    Console.WriteLine("Getting download URL... from " + targetStorageUrl);
    FirebaseStorage storage = FirebaseStorage.DefaultInstance;
    StorageReference storageRef = storage.GetReferenceFromUrl(targetStorageUrl);

    storageRef.GetDownloadUrlAsync().ContinueWith(task =>
    {
      if (!task.IsFaulted && !task.IsCanceled)
      {
        string downloadUrl = task.Result.ToString();
        Debug.Log("Download URL: " + downloadUrl);
        finishCallback?.Invoke(downloadUrl);
      }
      else
      {
        Debug.LogError("Error getting download URL: " + task.Exception);
        errorCallback?.Invoke(task.Exception.ToString());
      }
    });
  }
#endif
}