using UnityEngine;

namespace GFGGame
{
    public class DeviceUniqueIdHelper
    {
        private const string UniqueIdentifierKey = "UniqueIdentifier";

        public static string GetDeviceUniqueId()
        {
            // 尝试从本地存储中获取唯一标识符
            string uniqueIdentifier = PlayerPrefs.GetString(UniqueIdentifierKey);

            // 如果本地存储中不存在唯一标识符，生成一个新的唯一标识符
            if (string.IsNullOrEmpty(uniqueIdentifier))
            {
                uniqueIdentifier = SystemInfo.deviceUniqueIdentifier;
                // 将唯一标识符存储到本地存储中
                PlayerPrefs.SetString(UniqueIdentifierKey, uniqueIdentifier);
            }
            
            return PlayerPrefs.GetString(UniqueIdentifierKey);
        }
    }
}