LogBook source code

using System;
using System.IO;
namespace LogBook
{
    class Program
    {
        static void Main(string[] args)
        {
            string pathWay = @"C:\Users\ARTICUNO\Desktop\Data.txt";
            string action = "";
            bool close = false;
            do
            {
                if (File.Exists(pathWay))
                {
                    do
                    {
                        Console.Clear();
                        Console.Write("Found file!\nDo you wish to log something or read a log (read/log/clear/comments/close): ");
                        action = Console.ReadLine().ToLower();
                    } while (action.ToLower() != "log" && action.ToLower() != "read" && action.ToLower() != "close" && action.ToLower() != "clear" && action.ToLower() != "comments");
                    if (action == "log")
                    {
                        string filename, filedesc;
                        Console.Write("Enter file name: ");
                        filename = Console.ReadLine().ToLower();
                        Console.Write("Enter description (like what you've changed): ");
                        filedesc = Console.ReadLine().ToLower();
                        using (StreamWriter text = File.AppendText(pathWay))
                        {
                            text.WriteLine(filename + ", " + DateTime.Today + ", " + filedesc);
                        }
                    }
                    else if (action == "read")
                    {
                        string filename;
                        Console.Write("Enter file name (enter * if you wish to read all): ");
                        filename = Console.ReadLine().ToLower();
                        if (filename != "*")
                        {
                            using (StreamReader text = File.OpenText(pathWay))
                            {
                                string tt;
                                while ((tt = text.ReadLine()) != null)
                                {
                                    if (tt.ToLower().StartsWith(filename) && !tt.StartsWith("//"))
                                    {
                                        Console.WriteLine(tt);
                                    }
                                }
                            }
                            Console.ReadLine();
                        }
                        else
                        {
                            using (StreamReader text = File.OpenText(pathWay))
                            {
                                string tt;
                                while ((tt = text.ReadLine()) != null)
                                {
                                    if (!tt.StartsWith("//"))
                                    {
                                        Console.WriteLine(tt);
                                    }
                                }
                            }
                            Console.ReadLine();
                        }
                    } else if (action == "clear")
                    {
                        string filename;
                        Console.Write("Enter file name (enter * if you wish to read all): ");
                        filename = Console.ReadLine().ToLower();
                        if (filename != "*")
                        {
                            string testing = "";
                            using (StreamReader text = File.OpenText(pathWay))
                            {
                                string tt;
                                while ((tt = text.ReadLine()) != null)
                                {
                                    if (!tt.ToLower().StartsWith(filename))
                                    {
                                        testing += "\n" + tt;
                                    }
                                }
                            }
                            using (StreamWriter text = File.CreateText(pathWay))
                            {
                                text.WriteLine(testing);
                            }
                        } else
                        {
                            using (StreamWriter text = File.CreateText(pathWay))
                            {
                                text.WriteLine("//Lines that start with '//' will be ignored");
                            }
                        }
                    } else if (action == "comments")
                    {
                        using (StreamReader text = File.OpenText(pathWay))
                        {
                            string tt;
                            while ((tt = text.ReadLine()) != null)
                            {
                                if (tt.StartsWith("//"))
                                {
                                    Console.WriteLine(tt);
                                }
                            }
                        }
                        Console.ReadLine();
                    }
                }
                else
                {
                    Console.WriteLine("There is no file currently, so we're making you a new one!\nPlease restart your application.");
                    using (StreamWriter text = File.CreateText(pathWay))
                    {
                        text.WriteLine("//Lines that start with '//' will be ignored");
                        text.WriteLine("File creation: " + DateTime.Today);
                    }
                    Console.ReadLine();
                    close = true;
                }
            } while (action != "close" && !close);
        }
    }
}