using System;
using System.Linq;
using System.Text;
using System.Reflection;
using System.IO;
using System.Threading.Tasks;
namespace ZLPlugin_LisPacs_MR.Domain.Units
{
    /// <summary>
    /// 自定义日志类
    /// </summary>
    class Log
    {
        /// <summary>
        /// 日志路径
        /// </summary>
        static string Path { get; set; }


        /// <summary>
        /// 记录日志
        /// </summary>
        /// <param name="info"></param>
        /// <param name="isNewline">是否换行（目前体现排版的空行）</param>
        public static void Info(string info, bool isNewline = false)
        {
            if (string.IsNullOrEmpty(Path) || Path?.Length == 0)
                GetPath();

            var file = Path + "\\" + DateTime.Now.ToString("yyyy-MM-dd") + ".Log";
            using (var sw = new StreamWriter(file, true, Encoding.UTF8))
            {
                sw.WriteLine(DateTime.Now.ToString() + "=====>" + info);
                if (isNewline)
                    sw.WriteLine();
                sw.Flush();
            }
        }

        /// <summary>
        /// 获取日志路径（以部件名称为文件夹名称）
        /// </summary>
        /// <returns></returns>
        public static string GetPath()
        {
            var file = "C:\\zlPlugIn_调试信息";
            if (!Directory.Exists(file))
                Directory.CreateDirectory(file);
            Path = file + "\\" + Assembly.GetExecutingAssembly().GetName().Name;
            if (!Directory.Exists(Path))
                Directory.CreateDirectory(Path);
            return Path;
        }

        /// <summary>
        /// 异步删除日志任务
        /// </summary>
        /// <returns></returns>
        public static Task ClearLogAsyn(int Day = 20)
        {
            return new Task(() =>
            {
                var files = new DirectoryInfo(GetPath()).GetFiles("*.Log");
                files.ToList().ForEach(n =>
                {
                    if ((DateTime.Now - n.LastAccessTime).TotalDays > Day)
                        n.Delete();
                });
            });
        }
    }
}