using GummingCommon;
using System.IO;
using System.Xml.Serialization;

namespace GummingCommon
{
    public class SystemInfoService
    {
        public SystemSettingInfo Systems { get; private set; }

        static SystemInfoService _instance;
        static object _lockFlg = new object();
        public static SystemInfoService Instance()
        {
            if (_instance == null)
            {
                lock (_lockFlg)
                {
                    if (_instance == null)
                    {
                        _instance = new SystemInfoService();
                    }
                }
            }
            return _instance;
        }

        private SystemInfoService()
        {
            Systems = new SystemSettingInfo();
        }

        public void Save()
        {
            if (!Directory.Exists(SystemConst.SystemFolder))
            {
                Directory.CreateDirectory(SystemConst.SystemFolder);
            }
            XmlSerializer serializer = new XmlSerializer(typeof(SystemSettingInfo));
            using (FileStream fs = new FileStream(SystemConst.SystemFile, FileMode.Create))
            {
                //Systems.ConnectionPassWord = Encryption.Encrypt(Systems.ConnectionPassWord);
                serializer.Serialize(fs, Systems);
                //Systems.ConnectionPassWord = Encryption.Decrypt(Systems.ConnectionPassWord);
            }
        }

        public void Load()
        {
            if (File.Exists(SystemConst.SystemFile))
            {
                XmlSerializer serializer = new XmlSerializer(typeof(SystemSettingInfo));
                using (FileStream fs = new FileStream(SystemConst.SystemFile, FileMode.Open))
                {
                    object obj = serializer.Deserialize(fs);
                    if (obj != null)
                    {
                        Systems = (SystemSettingInfo)obj;
                        try
                        {
                            //Systems.ConnectionPassWord = Encryption.Decrypt(Systems.ConnectionPassWord);
                        }
                        catch { }
                    }
                }
            }
        }
    }
}