Version 1.2.0

RHLauncher.Http/DownloadHelper.cs

@@ -0,0 +1,69 @@
+using RHLauncher.RHLauncher.Helper;
+using System.Net;
+
+namespace RHLauncher.RHLauncher.Http
+{
+    public class DownloadHelper
+    {
+        public static async Task<long> GetFileSizeAsync(HttpClient client, string fileUrl, CancellationToken cancellationToken)
+        {
+            using HttpRequestMessage request = new(HttpMethod.Get, fileUrl);
+
+            try
+            {
+                using HttpResponseMessage response = await client.SendAsync(request, HttpCompletionOption.ResponseHeadersRead, cancellationToken).ConfigureAwait(false);
+
+                if (response.IsSuccessStatusCode)
+                {
+                    return response.Content.Headers.ContentLength ?? throw new Exception("Content-Length header not found in response headers.");
+                }
+                else if (response.StatusCode == HttpStatusCode.NotFound)
+                {
+                    Logger.WriteLog($"File not found: {fileUrl}");
+                    return 0;
+                }
+                else
+                {
+                    Logger.WriteLog($"Error getting file size for {fileUrl}: {response.StatusCode}");
+                    return 0;
+                }
+            }
+            catch (HttpRequestException ex) when (ex.StatusCode == HttpStatusCode.NotFound)
+            {
+                Logger.WriteLog($"File not found: {fileUrl}");
+                return 0;
+            }
+            catch (Exception ex)
+            {
+                Logger.WriteLog($"Error getting file size for {fileUrl}: {ex.Message}");
+                return 0;
+            }
+        }
+
+        public static string FormatDownloadSpeed(double totalDownloadSpeed)
+        {
+            string[] sizes = { "B/s", "KB/s", "MB/s", "GB/s" };
+            int order = 0;
+            while (totalDownloadSpeed >= 1024 && order < sizes.Length - 1)
+            {
+                order++;
+                totalDownloadSpeed /= 1024;
+            }
+
+            return $"{totalDownloadSpeed:0.#} {sizes[order]}";
+        }
+
+        public static string FormatFileSize(long bytes)
+        {
+            string[] sizes = { "B", "KB", "MB", "GB" };
+            int order = 0;
+            while (bytes >= 1024 && order < sizes.Length - 1)
+            {
+                order++;
+                bytes /= 1024;
+            }
+
+            return $"{bytes:0.#} {sizes[order]}";
+        }
+    }
+}