/*-------------------------------------------------------------------------
 * 功能描述：DataServerUtil
 * 作者：xulisong
 * 创建时间： 2019/1/21 15:32:13
 * 版本号：v1.0
 *  -------------------------------------------------------------------------*/

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using FWindSoft.Data;

namespace Test.DataServer
{
    public class DataServerUtil
    {
        private static TimeVersionServer m_DataServer;

        public static TimeVersionServer Current
        {
            get
            {
                if (m_DataServer == null)
                {
                    m_DataServer = new TimeVersionServer((file) =>
                    {
                        var basePath = Path.GetDirectoryName(Assembly.GetAssembly(typeof(DataServerUtil)).Location);
                        TimeVersionFile versionFile = new TimeVersionFile(basePath, file);
                        return versionFile;
                    });
                }
                return m_DataServer;

            }
        }

        public static bool IsExpired(string fileKey, DateTime dateTime)
        {
            var version = Current.CreateVersionFile(fileKey)?.ReadVersion();
            if (string.IsNullOrEmpty(version))
            {
                return true;
            }
            var refTime = dateTime.ToString("yyyyMMddHHmmss");
            return string.Compare(version,refTime)<0;
        }
        public static bool IsExpired<T>(DateTime dateTime)
        {
            var fileName = FWindSoft.Data.DataServer.GetFileKey<T>();
            return IsExpired(fileName, dateTime);
           
        }
    }
}