using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.IO;
using System.Net;
using System.Web;

namespace GMOD_Lua_Cache
{
    class Program
    {
        private static string addr;
        private static string user;
        private static string pass;
        private static string path;
        static void Main(string[] args)
        {
            Console.WriteLine("GMOD Lua Auto Cache\nAutomaticly update your cache!\n\n");
            Console.Title = "GMOD Auto Lua Cache";

            try
            {
                StreamReader settings = new StreamReader("settings.txt");

                user = settings.ReadLine();
                pass = settings.ReadLine();
                path = settings.ReadLine();
                addr = settings.ReadLine();

                settings.Close();
                settings.Dispose();

                Console.WriteLine("Local DIR: " + path);
                Console.WriteLine("Remote Address: " + addr + "\n\n");

                FileSystemWatcher watcher = new FileSystemWatcher();
                watcher.Path = path;
                watcher.Filter = "*.dua";

                //watcher.Created += new FileSystemEventHandler(Created);
                watcher.Changed += new FileSystemEventHandler(Created);
                watcher.EnableRaisingEvents = true;

                while (true)
                {
                    System.Threading.Thread.Sleep(500);
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("ERROR: settings.txt is either corrupt or non-existent");
                Console.WriteLine("settings.txt format:\nFTP User\nFTP Password\nLocal Cache Folder\nRemote Cache Folder\n\nAn Example would be:\n\nmyuser123\nmypassword\nC:\\Server\\orangebox\\garrysmod\\cache\\\nftp://myfastdlwebsite.com/dir/cache/\n\nPlease note that all paths must end with a slash");
                Console.ReadKey(true);
                return;
            }
        }

        private static void Created(object obj, FileSystemEventArgs e)
        {
            Console.WriteLine(e.Name + " has changed.");

            try
            {
                FtpWebRequest req = (FtpWebRequest)FtpWebRequest.Create(addr + e.Name); // create and caste it!
                req.Method = WebRequestMethods.Ftp.UploadFile;
                req.Credentials = new NetworkCredential(user, pass);
                req.UsePassive = true;
                req.UseBinary = true;
                req.KeepAlive = false;

                FileStream stream = new FileStream(e.FullPath, FileMode.Open);
                byte[] buff = new byte[stream.Length];
                stream.Read(buff, 0, buff.Length);
                stream.Close();

                Stream req_stream = req.GetRequestStream();
                req_stream.Write(buff, 0, buff.Length);
                req_stream.Close();

                FtpWebResponse response = (FtpWebResponse)req.GetResponse();
                Console.WriteLine("Upload File Complete.\n{0}", response.StatusDescription);
                response.Close();
            }
            catch(Exception ex)
            {
                Console.WriteLine("ERROR: " + ex.Message);
                Console.WriteLine("Please make sure all of your details are correct\n");
            }
        }
    }
}