Download file

Downloader.cs

using System;
using System.IO;
using System.Linq;
using System.Net;
using System.Threading.Tasks;
using System.Collections.Generic;

namespace Downloader
{
    internal class Program
    {
        private const string Url = "https://raw.githubusercontent.com/Taiizor/ReaLTaiizor/develop/.screenshots";
        private static readonly string Move = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);

        private static void Main()
        {
            DownloadFile("Splash.gif");

            Console.WriteLine("Pencereyi kapatmak için bir tuşa basın..")
            Console.ReadKey();
        }

        private static Task DownloadFile(string FileName)
        {
            string DownloadUrl = CombineUrl(Url, FileName);
            string TempFile = Path.Combine(Path.GetTempPath(), FileName);

            Console.WriteLine($"{DownloadUrl} adresinden indirme işlemi başlatılıyor.");

            try
            {
                using WebClient WebClient = new();

                WebClient.DownloadFile(DownloadUrl, TempFile);

                if (File.Exists(TempFile))
                {
                    if (File.Exists(Path.Combine(Move, FileName)))
                    {
                        Random Random = new();

                        File.Move(TempFile, Path.Combine(Move, $"{Random.Next(99)}-{FileName}"));
                    }
                    else
                    {
                        File.Move(TempFile, Path.Combine(Move, FileName));
                    }

                    Console.WriteLine($"Dosya başarıyla indirildi.");
                }
            }
            catch (Exception Ex)
            {
                if (File.Exists(TempFile))
                {
                    File.Delete(TempFile);
                }

                Console.Write($"Hata Oluştu: {Ex.Message}");
            }

            return Task.CompletedTask;
        }

        private static string CombineUrl(params string[] args)
        {
            IEnumerable<string> prefixAdjusted = args.Select(x => x.StartsWith("/") && !x.StartsWith("http") ? x[1..] : x);
            return string.Join("/", prefixAdjusted);
        }
    }
}