BeWoPlaner/BeWoLauncher/Logic/Controller/DownloadController.cs

using BeWoLauncher.Logic.Utils;
using BeWoLauncher.Logic.Utils.Download;
using BS.SharedLauncher.Extensions;
using BS.SharedLauncher.Information;
using BS.SharedLauncher.Logic;
using BS.SharedLauncher.Utils;
using System;
using System.IO;
using System.Windows;

namespace BeWoLauncher.Logic.Controller
{
    public static class DownloadController
    {
        public static DownloadManager Manager { get; set; }

        public static long FreeSpace { get; set; }
        public static long NeededSpace => Manager.UpdatePlanResponse.DownloadSize;

        static DownloadController()
        {

        }

        public static void Start(string logger_path = null)
        {
            Manager = new DownloadManager();

            if (!string.IsNullOrEmpty(logger_path))
            {
                GenericTextLogger.Init(logger_path);
            }
        }

        /// <summary>
        /// 
        /// </summary>
        /// <returns>Error string - null if successful</returns>
        public static string TryLoadInstallPlan()
        {
            GenericTextLogger.PostImportantInfo("Starting Install Process");

            if (!CheckConnection())
                return "Download server is down";

            try
            {
                Manager.GetUpdatePlan();

                var response = Manager.UpdatePlanResponse;

                if (response.Successful)
                {
                    var client_version = response.CurrentPackage.Version;

                    GenericTextLogger.Post($"Anfrage wurde erfolgreich verarbeitet. Server gibt Version {client_version} vor.");

                    return null;
                }
                else
                {
                    return $"Server gibt Fehler zurück. Fehler: {response.Error}";
                }
            }
            catch (Exception e)
            {
                return e.ToString();
            }
        }

        public static string TryLoadUpdatePlan(out bool can_quick_start)
        {
            GenericTextLogger.PostImportantInfo($"Starting Update Process");

            can_quick_start = false;

            if (!CheckConnection())
            {
                if (DoesPlanerExeExists())
                {
                    can_quick_start = true;

                    return null;
                }
                else
                {
                    return "Download server is down & quickstart not possible";
                }
            }

            try
            {
                Manager.GetUpdatePlan();

                var response = Manager.UpdatePlanResponse;

                if (response.Successful)
                {
                    var client_version = response.CurrentPackage.Version;

                    GenericTextLogger.Post($"Anfrage wurde erfolgreich verarbeitet. Server gibt Version {client_version} vor.");

                    if (!response.HasToDo())
                        can_quick_start = true;

                    return null;
                }
                else
                {
                    return $"Server gibt Fehler zurück. Fehler: {response.Error}";
                }
            }
            catch (Exception e)
            {
                return e.ToString();
            }
        }

        public static string TryLoadUninstallPlan()
        {
            try
            {
                Manager.GetDeletePlan();
                return null;
            }
            catch (Exception e)
            {
                return e.ToString();
            }
        }

        public static bool DoesPlanerExeExists()
        {
            try
            {
                return File.Exists(LauncherPaths.GetPlanerExePath());
            }
            catch
            {

            }


            return false;
        }

        public static string UpdateDiskSpace(string path)
        {
            FileInfo f = new FileInfo(path);

            string drive = System.IO.Path.GetPathRoot(f.FullName);
            FreeSpace = NonspecificTools.GetTotalFreeSpace(drive);

            if (FreeSpace >= 0)
                return NonspecificTools.SizeSuffix((ulong)FreeSpace);
            else
                return "error";
        }

        private static bool CheckConnection()
        {
            GenericTextLogger.Post("Checking download server connection...");
            var check = Manager.CheckForConnection();
            if (check)
                GenericTextLogger.Post("Download server is up");
            else
                GenericTextLogger.Post("Download server is down");

            return check;
        }
    }
}