using System;
using System.IO;

namespace EC.Utils
{
	public class FileUnitEx
	{
		/// <summary>
		/// 定期清理日志
		/// </summary>
		/// <param name="dirArr">日志目录</param>
		/// <param name="retentionDays">日志保留天数</param>
		public static void RegularClearLog(string[] dirArr, int retentionDays)
		{
			try
			{
				foreach (string dir in dirArr)
				{
					string[] files = Directory.GetFiles(dir, "*.txt", SearchOption.AllDirectories);
					if (files.Length <= 0) continue;
					foreach (string file in files)
					{
						TimeSpan ts = DateTime.Now.Subtract(new FileInfo(file).LastWriteTime);
						if (ts.Days > retentionDays) File.Delete(file);
					}
				}
			}
			catch (Exception) { }
		}

		/// <summary>
		/// example: CustomLog("RequestBoxType\\", hexStr);
		/// </summary>
		/// <param name="subPath"></param>
		/// <param name="msg"></param>
		public static void CustomLog(string subPath, string msg)
		{
			var LogMethod = typeof(FileUnit).GetMethod("Log", System.Reflection.BindingFlags.NonPublic | System.Reflection.BindingFlags.Static);
			LogMethod.Invoke(null, new object[] { subPath, msg });
		}
	}
}