using System;
using System.IO;
using System.Net;
using System.Linq;
using System.Threading;
using System.Diagnostics;
using System.Windows.Forms;
using System.ComponentModel;

namespace Launcher_SelfUpdater
{
    public partial class Main : Form
    {
        public Int32 Method = 0;

        public Main()
        {
            InitializeComponent();

            Text = String.Format("{0} Self Updater", Properties.Settings.Default.ServerName);
        }

        private void Main_Load(Object Sender, EventArgs Arguments)
        {
            if (Environment.GetCommandLineArgs().Length == 2)
            {
                Method = 1;
            }
        }

        private void Main_Shown(Object Sender, EventArgs Arguments)
        {
            new Thread(() =>
            {
                while (Process.GetProcesses().FirstOrDefault(Name => Name.ProcessName == Properties.Settings.Default.LauncherFile.Split('.')[0]) != null)
                {
                    Thread.Sleep(1000);
                }

                try
                {
                    if (Method == 1)
                    {
                        if (File.Exists(String.Format("{0}{1}{2}", Program.LocalPath, Properties.Settings.Default.LauncherFolder, Properties.Settings.Default.UpdateFile)))
                        {
                            if (File.Exists(String.Format("{0}{1}", Program.LocalPath, Properties.Settings.Default.LauncherFile))) { File.Delete(String.Format("{0}{1}", Program.LocalPath, Properties.Settings.Default.LauncherFile)); }

                            File.Move(String.Format("{0}{1}{2}", Program.LocalPath, Properties.Settings.Default.LauncherFolder, Properties.Settings.Default.UpdateFile), String.Format("{0}{1}", Program.LocalPath, Properties.Settings.Default.LauncherFile));
                        }

                        Process.Start(String.Format("{0}{1}", Program.LocalPath, Properties.Settings.Default.LauncherFile));

                        Utility.Shutdown();
                    }
                    else
                    {
                        WebClient DownloadLauncher = new WebClient();

                        DownloadLauncher.DownloadFileCompleted += DownloadLauncher_Completed;
                        DownloadLauncher.DownloadFileAsync(new Uri(String.Format("{0}{1}{2}", Properties.Settings.Default.ServerURL, Properties.Settings.Default.ServerFolder, Properties.Settings.Default.LauncherFile)), String.Format("{0}{1}", Program.LocalPath, Properties.Settings.Default.LauncherFile));
                    }
                }
                catch (Exception Error)
                {
                    Utility.Error(Error.Message);

                    Utility.Shutdown();
                }
            }).Start();
        }

        private void DownloadLauncher_Completed(Object Sender, AsyncCompletedEventArgs Arguments)
        {
            Process.Start(String.Format("{0}{1}", Program.LocalPath, Properties.Settings.Default.LauncherFile));

            Utility.Shutdown();
        }
    }
}