using System;
using System.IO;
using System.Linq;

namespace HMI.Util
{
    public class DbFileHelper
    {
        public static string[] GetDbFiles(string folderPath, DateTime startTime, DateTime endTime)
        {
            if (!Directory.Exists(folderPath))
            {
                return new string[0];
            }
            // 获取所有.db文件并筛选出7天前更新的文件
            var oldFiles = Directory.GetFiles(folderPath, "*.db");
            oldFiles = oldFiles.Where(file =>
            {
                var lastWriteTime = File.GetLastWriteTime(file);
                bool flag = true;
                if (startTime != null) flag &= lastWriteTime >= startTime;
                //if (endTime != null) flag &= lastWriteTime <= endTime;
                return flag;
            }).ToArray();

            return oldFiles;
        }
    }
}