using UnityEngine;
using UnityEngine.SceneManagement;
using Firebase.Auth;
using System.Threading.Tasks;
using UnityEditor;

namespace BulletHellTemplate
{
    /// <summary>
    /// This script handles logging out from Firebase, clearing PlayerPrefs, and returning to the login scene.
    /// </summary>
    public class LogOut : MonoBehaviour
    {
        [Header("Scene to load after logout")]
        public string loginScene; // SceneAsset reference to the login scene

        private FirebaseAuth auth;

        private void Start()
        {
            // Initialize Firebase Auth
            auth = FirebaseAuth.DefaultInstance;
        }

        /// <summary>
        /// Logs out the player from Firebase, clears PlayerPrefs, and loads the login scene.
        /// </summary>
        public async void PerformLogOut()
        {
            // Perform Firebase logout
            await LogOutFromFirebase();

            // Clear PlayerPrefs data
            PlayerPrefs.DeleteAll();
            PlayerPrefs.Save();
            Debug.Log("PlayerPrefs cleared. Logging out...");

            // Load the login scene
            if (loginScene != null)
            {
                SceneManager.LoadScene(loginScene);
            }
            else
            {
                Debug.LogError("Login scene reference is not set.");
            }
        }

        /// <summary>
        /// Logs out the current user from Firebase asynchronously.
        /// </summary>
        private async Task LogOutFromFirebase()
        {
            if (auth.CurrentUser != null)
            {
                // Sign out from Firebase
                auth.SignOut();
                Debug.Log("User signed out from Firebase.");
            }
            else
            {
                Debug.LogWarning("No user is logged in to Firebase.");
            }

            // Simulating waiting for any asynchronous operations, if needed
            await Task.Delay(100); // Just a small delay to ensure smooth logout process
        }
    }
}