using Microsoft.Win32;
using Newtonsoft.Json.Linq;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Net.Http;
using System.Reflection;
using System.Diagnostics;
using System.Net;
using System.IO;
using Neo.LegitimateLicences.Helpers;
using System.Configuration;
using Microsoft.VisualBasic;

namespace Neo.LegitimateLicences.DesktopUpdater
{
    static class Program
    {

        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        [STAThread]
        static void Main(string[] args)
        {
            string version = "";
            try
            {            
            string paramenters = "";
            System.Threading.Thread.Sleep(1000);

            #region Validate the arguments
            if (args.Length == 0)
            {
                version = Interaction.InputBox("Enter version number to download", "Version Download", "1.0.0.0", -1, -1);                
            }
            else
            {
                args[0] = args[0].ToLower();
                paramenters = args[0];
            }

            using (EventLog eventLog = new EventLog("Application"))
            {
                eventLog.Source = "Application";
                eventLog.WriteEntry("Legitimate Desktop Install: Update started with the following parameters: " + paramenters, EventLogEntryType.Information, 101, 1);
            }
            
            var argumentString = paramenters;
            var arguments = argumentString.Split('_');
            
            if(String.IsNullOrEmpty(version))
            {
                if (arguments.Length != 4 && arguments.Length != 1)
                {
                    MessageBox.Show("Invalid argument format.");
                    return;
                }
                version = arguments.Length == 4 ? arguments[3] : arguments[0];
            }            
            #endregion

            
                //string downLoads = Registry.GetValue(@"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders", "{374DE290-123F-4565-9164-39C4925E467B}", String.Empty).ToString();
                if(String.IsNullOrEmpty(version))
                {
                    MessageBox.Show("Version not specified");
                    throw new Exception("Version not specified");
                }

                if (File.Exists(Application.StartupPath + "\\" + version/*version number*/+ ".zip"))
                {
                    File.Delete(Application.StartupPath + "\\" + version/*version number*/+ ".zip");
                }

                #region Download file from Cdn
                using (var client = new WebClient())
                {
                    Helpers.Common common = new Common();
                    common.SetApiVersion(ConfigurationManager.AppSettings["Environment"]);

                    using (EventLog eventLog = new EventLog("Application"))
                    {
                        eventLog.Source = "Application";
                        eventLog.WriteEntry("Legitimate Desktop Install: Download version : " + common.CdnUrl + version/*version number*/+ ".zip", EventLogEntryType.Information, 101, 1);
                    }
                    client.DownloadFile(common.CdnUrl + version/*version number*/+ ".zip", Application.StartupPath + "\\" + version/*version number*/+ ".zip");
                }
                #endregion

                #region Extract Zip file
                Ionic.Zip.ZipFile zipFile = new Ionic.Zip.ZipFile(Application.StartupPath + "\\" + version/*version number*/+ ".zip");
                zipFile.ExtractAll(Application.StartupPath, Ionic.Zip.ExtractExistingFileAction.OverwriteSilently);
                zipFile.Dispose();
                #endregion

                #region Delete Zip file
                if (File.Exists(Application.StartupPath + "\\" + version/*version number*/+ ".zip"))
                {
                    File.Delete(Application.StartupPath + "\\" + version/*version number*/+ ".zip");
                }
                #endregion

                #region Call Neo.LegitimateLicences.Desktop.exe
                if (arguments.Length == 4)
                {
                    string filename = Path.Combine(Application.StartupPath, "Neo.LegitimateLicences.Desktop.exe");

                    string returnArray = args[0].ToLower();
                    var returnValue = returnArray.Split('_');
                    var returnString = returnValue[0] + "_" + returnValue[1] + "_" + returnValue[2];

                    var proc = System.Diagnostics.Process.Start(filename, returnString);

                    using (EventLog eventLog = new EventLog("Application"))
                    {
                        eventLog.Source = "Application";
                        eventLog.WriteEntry("Legitimate Desktop: Called with the following parameters: " + returnString, EventLogEntryType.Information, 101, 1);
                    }
                }                
                #endregion
            }
            catch (Exception ex)
            {
                MessageBox.Show("Error downloading latest version " + version);
                using (EventLog eventLog = new EventLog("Application"))
                {
                    eventLog.Source = "Application";
                    eventLog.WriteEntry("Legitimate Desktop Install Error: " + ex.Message, EventLogEntryType.Error, 101, 1);
                    if(ex.InnerException != null)
                    {
                        eventLog.WriteEntry("Legitimate Desktop Install Error: " + ex.InnerException.ToString(), EventLogEntryType.Error, 101, 1);
                    }                    
                }                               
                return;
            }
            return;
        }
    }
}