Megy a program letöltése is...

src/WorkFlowCheck.MAUI/Services/SyncService.cs

@@ -1,4 +1,5 @@
-using AutoMapper;
+using Android.Content;
+using AutoMapper;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using Newtonsoft.Json;
@@ -27,6 +28,84 @@ namespace WorkFlowCheck.MAUI.Services
             await SyncCheckListTemplates_Down(reportProgress);
             await SyncCheckListHeader_Down(reportProgress);
         }
+        public async Task DownloadAPK(Action<double, string> reportProgress)
+        {
+            try
+            {
+                await PrepareAuthenticatedRequestAsync();
+                string endpoint = $"{_httpClient.BaseAddress}api/Sync/Download";
+
+                string fileName = "com.nuvolar.wfcapp-Signed.apk";
+
+                // Az Androidon lévő privát letöltési mappa
+                string downloadFolder = Path.Combine(Android.App.Application.Context.GetExternalFilesDir(null)?.AbsolutePath, "APK");
+
+                // Ellenőrizd, hogy a mappa létezik-e, ha nem, hozd létre
+                if (!Directory.Exists(downloadFolder))
+                {
+                    Directory.CreateDirectory(downloadFolder);
+                }
+
+                string filePath = Path.Combine(downloadFolder, fileName);
+
+                using (_httpClient)
+                {
+                    var response = await _httpClient.GetAsync(endpoint, HttpCompletionOption.ResponseHeadersRead);
+                    if (response.IsSuccessStatusCode)
+                    {
+                        var totalBytes = response.Content.Headers.ContentLength ?? -1L;
+                        long receivedBytes = 0;
+
+                        using (var stream = await response.Content.ReadAsStreamAsync())
+                        using (var fileStream = new FileStream(filePath, FileMode.Create, FileAccess.Write, FileShare.None))
+                        {
+                            byte[] buffer = new byte[1024 * 1024] 
+;
+                            int bytesRead;
+
+                            while ((bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length)) > 0)
+                            {
+                                await fileStream.WriteAsync(buffer, 0, bytesRead);
+                                receivedBytes += bytesRead;
+
+                                if (totalBytes != -1)
+                                {
+                                    double progress = (double)receivedBytes / totalBytes * 100;
+                                    reportProgress(progress, $"APK letöltés...");
+                                }
+                                else
+                                {
+                                    reportProgress(-1, $"APK letöltés...");
+                                }
+                            }
+                        }
+
+                        // Telepítés indítása a FileProvider segítségével
+                        var apkUri = FileProvider.GetUriForFile(Android.App.Application.Context,
+                            $"{Android.App.Application.Context.PackageName}.fileprovider",
+                            new Java.IO.File(filePath));
+
+                        var installIntent = new Intent(Intent.ActionView);
+                        installIntent.SetDataAndType(apkUri, "application/vnd.android.package-archive");
+                        installIntent.AddFlags(ActivityFlags.NewTask);
+                        installIntent.AddFlags(ActivityFlags.GrantReadUriPermission);
+
+                        Android.App.Application.Context.StartActivity(installIntent);
+                    }
+                    else
+                    {
+                        reportProgress(0, $"Letöltési hiba: {response.StatusCode}");
+                        Console.WriteLine($"Letöltési hiba: {response.StatusCode}");
+                    }
+                }
+            }
+            catch (Exception ex)
+            {
+                reportProgress(0, $"Hiba történt: {ex.Message}");
+                Console.WriteLine($"Hiba történt: {ex.Message}");
+            }
+        }
+
         public async Task SyncCheckPoints_Down(Action<double, string> reportProgress)
         {
             try