using System;
using System.Collections;
using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.Networking;

namespace Hallucinate.UI
{
    public static class FirebaseService
    {
        // Thay link database của bạn vào đây
        private const string BASE_URL = "https://YOUR_FIREBASE_URL.firebaseio.com/users";

        public static async Task<bool> IsUsernameTaken(string username)
        {
            string url = $"{BASE_URL}/{username}.json";
            using (UnityWebRequest request = UnityWebRequest.Get(url))
            {
                var operation = request.SendWebRequest();
                while (!operation.isDone) await Task.Yield();

                if (request.result != UnityWebRequest.Result.Success) return false;
                
                // Nếu kết quả trả về không phải "null" nghĩa là user đã tồn tại
                return request.downloadHandler.text != "null";
            }
        }

        public static async Task<bool> RegisterUser(string username)
        {
            string url = $"{BASE_URL}/{username}.json";
            string jsonData = "{\"created_at\": \"" + DateTime.Now.ToString() + "\"}";

            using (UnityWebRequest request = UnityWebRequest.Put(url, jsonData))
            {
                var operation = request.SendWebRequest();
                while (!operation.isDone) await Task.Yield();

                return request.result == UnityWebRequest.Result.Success;
            }
        }
    }
}