using System;
using System.Collections.Generic;
using System.Text;
using System.IO;

namespace SimpleServer
{
    public static class Tools
    {

        static Dictionary<string, bool> Txt_Used = new Dictionary<string, bool>();

        #region 生成并保存本地文件
        /// <summary>
        /// 文件自动保存
        /// </summary>
        /// <param name="_file_name">文件名称</param>
        /// <param name="path">保存路径</param>
        /// <param name="logstring">文件内容</param>
        public static void AddLgoToTXT(string _file_name, string path, string logstring)
        {
            //检查是否存在该路径
            if (!System.IO.Directory.Exists(path))
            {
                Directory.CreateDirectory(path);
            }

            path = path + _file_name;
            //检查该路径下是否存在该文件
            if (!System.IO.File.Exists(path))
            {
                FileStream stream = System.IO.File.Create(path);
                stream.Close();
                stream.Dispose();
            }
            if (!Txt_Used.ContainsKey(path))
            {
                Txt_Used.Add(path, true);
            }
            else
            {
                if (Txt_Used[path])
                {
                    return;
                }
                else
                {
                    Txt_Used[path] = true;
                }
            }
            //[1]创建文件流 文件路径 和枚举类型的文件操作类型
            FileStream fs = new FileStream(path, FileMode.Append);
            //[2]创建写入器
            StreamWriter sw = new StreamWriter(fs);
            //[3]以流的方式写入数据
            sw.Write(logstring);
            //[4]关闭写入器
            sw.Close();
            //[5]关闭文件流
            fs.Close();
            Txt_Used[path] = false;
        }
        #endregion
    }
}