diff --git a/src/WorkFlowCheck.MAUI/Handlers/ProgressableStreamContent.cs b/src/WorkFlowCheck.MAUI/Handlers/ProgressableStreamContent.cs
new file mode 100644
index 0000000..0605057
--- /dev/null
+++ b/src/WorkFlowCheck.MAUI/Handlers/ProgressableStreamContent.cs
@@ -0,0 +1,44 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WorkFlowCheck.MAUI.Handlers
+{
+    public class ProgressableStreamContent : HttpContent
+    {
+        private readonly Stream _stream;
+        private readonly int _bufferSize;
+        private readonly Action<long, long> _progress;
+
+        public ProgressableStreamContent(Stream stream, int bufferSize, Action<long, long> progress)
+        {
+            _stream = stream;
+            _bufferSize = bufferSize;
+            _progress = progress;
+        }
+
+        protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
+        {
+            var buffer = new byte[_bufferSize];
+            long totalBytesRead = 0;
+            int bytesRead;
+
+            while ((bytesRead = await _stream.ReadAsync(buffer, 0, buffer.Length)) > 0)
+            {
+                await stream.WriteAsync(buffer, 0, bytesRead);
+                totalBytesRead += bytesRead;
+                _progress(totalBytesRead, _stream.Length);
+            }
+        }
+
+        protected override bool TryComputeLength(out long length)
+        {
+            length = _stream.Length;
+            return true;
+        }
+    }
+
+}
diff --git a/src/WorkFlowCheck.MAUI/MainPage.xaml b/src/WorkFlowCheck.MAUI/MainPage.xaml
index be85abe..fd3f6af 100644
--- a/src/WorkFlowCheck.MAUI/MainPage.xaml
+++ b/src/WorkFlowCheck.MAUI/MainPage.xaml
@@ -2,13 +2,19 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="WorkFlowCheck.MAUI.MainPage"
-             Title="Főmenü">
+             Title="Főmenü"
+             BackgroundColor="#f0f0f0">
 
     <Grid RowDefinitions="Auto, * , Auto" Padding="30,0">
 
-        <ScrollView Grid.Row="1">
+        <ScrollView Grid.Row="1"
+                    Padding="25">
             <VerticalStackLayout Spacing="25">
-                <Frame BorderColor="Gray" Padding="5" Margin="1" HasShadow="True">
+                <Frame BorderColor="Gray" 
+                       Padding="5" 
+                       CornerRadius="10"
+                       Margin="1" 
+                       HasShadow="True">
                     <VerticalStackLayout>
                         <Label Text="Alapműveletek" FontAttributes="Bold" FontSize="Medium" HorizontalOptions="Center" />
                         <Button
@@ -31,7 +37,11 @@
                             HorizontalOptions="Fill" />
                     </VerticalStackLayout>
                 </Frame>
-                <Frame BorderColor="Gray" Padding="5" Margin="1" HasShadow="True">
+                <Frame BorderColor="Gray" 
+                       Padding="5" 
+                       Margin="1" 
+                       CornerRadius="10"
+                       HasShadow="True">
                     <VerticalStackLayout>
                         <Label Text="Ellenőrzés" FontAttributes="Bold" FontSize="Medium" HorizontalOptions="Center" />
                         <Button
@@ -46,7 +56,12 @@
             </VerticalStackLayout>
         </ScrollView>
 
-        <Frame Grid.Row="2" BorderColor="Gray" Padding="5" Margin="1" HasShadow="True">
+        <Frame Grid.Row="2" 
+               BorderColor="Gray" 
+               CornerRadius="10"
+               Padding="5" 
+               Margin="1" 
+               HasShadow="True">
             <Button
                 x:Name="LogoutBtn" Margin="5"
                 BackgroundColor="DarkRed"
diff --git a/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml b/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml
index cca35a4..f3b457d 100644
--- a/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml
+++ b/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml
@@ -4,6 +4,8 @@
              x:Class="WorkFlowCheck.MAUI.Pages.BaseStock.CheckPointsPage"
              Title="Ellenőrzési pontok">
     <StackLayout>
+        <Label x:Name="progressLabel" Text="Folyamatjelző" FontSize="Medium" HorizontalOptions="Center" />
+        <ProgressBar x:Name="progressBar" WidthRequest="300" HeightRequest="40" />
         <Button
             x:Name="ButtonSync" Margin="5"
             Text="Adatok szinkronizálása" 
diff --git a/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml.cs b/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml.cs
index 5845245..f54dc4d 100644
--- a/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml.cs
+++ b/src/WorkFlowCheck.MAUI/Pages/BaseStock/CheckPoints/CheckPointsPage.xaml.cs
@@ -40,7 +40,7 @@ public partial class CheckPointsPage : ContentPage
     private async Task LoadCheckPoints()
     {
         IsRefreshing = true;
-        await _syncService.SyncDatas();
+        //await _syncService.SyncDatas();
         CheckPointsList.ItemsSource = await _baseStockService.GetAllCheckPoints();
         IsRefreshing = false;
         OnPropertyChanged(nameof(IsRefreshing));
@@ -72,8 +72,38 @@ public partial class CheckPointsPage : ContentPage
         Shell.Current.GoToAsync("//BaseStockPage");
         return true;
     }
-    private void OnButtonSync(object sender, EventArgs e)
+    private async void OnButtonSync(object sender, EventArgs e)
     {
-        _syncService.SyncCheckPointsUp();
+        IsRefreshing = true;
+        ButtonSync.IsEnabled = false;
+        
+        progressLabel.Text = "Szinkronizálás indítása...";
+        progressBar.Progress = 0;
+
+        try
+        {
+            await Task.Run(async () =>
+            {
+                await _syncService.SyncCheckPoints_Up((percentage, infostring) =>
+                {
+                    MainThread.BeginInvokeOnMainThread(() =>
+                    {
+                        progressBar.Progress = percentage / 100;
+                        progressLabel.Text = $"{infostring}: {percentage:0.00}%";
+                    });
+                });
+            });
+
+            progressLabel.Text = "Szinkronizálás befejezve!";
+        }
+        catch (Exception ex)
+        {
+            progressLabel.Text = $"Hiba történt: {ex.Message}";
+        }
+        finally
+        {
+            ButtonSync.IsEnabled = true;
+            IsRefreshing = false;
+        }
     }
 }
\ No newline at end of file
diff --git a/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListPage.xaml b/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListPage.xaml
index 54e8106..2b858c7 100644
--- a/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListPage.xaml
+++ b/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListPage.xaml
@@ -2,11 +2,16 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="WorkFlowCheck.MAUI.Pages.CheckList.CheckListPage"
-             Title="Ellenőrzések">
-    <Grid RowDefinitions="*,*" Padding="30,0">
-
-        <ScrollView Grid.Row="0">
-            <Frame BorderColor="Gray" Padding="5" Margin="1" HasShadow="True">
+             Title="Ellenőrzések"
+             BackgroundColor="#f0f0f0">
+    <Grid RowDefinitions="*,*" Padding="30,30">
+        <Frame Grid.Row="0"
+               BorderColor="Gray" 
+               Padding="5" 
+               Margin="1" 
+               CornerRadius="10"
+               HasShadow="True">
+            <ScrollView >
                 <VerticalStackLayout>
                     <Label Text="Megkezdett ellenőrzések" FontAttributes="Bold" FontSize="Medium" HorizontalOptions="Center" />
                     <CollectionView x:Name="CheckList">
@@ -29,10 +34,16 @@
                         </CollectionView.ItemTemplate>
                     </CollectionView>
                 </VerticalStackLayout>
-            </Frame>
-        </ScrollView>
-        <ScrollView Grid.Row="1">
-            <Frame BorderColor="Gray" Padding="5" Margin="1" HasShadow="True">
+            </ScrollView>
+        </Frame>
+        
+            <Frame Grid.Row="1"
+                   BorderColor="Gray" 
+                   Padding="5" 
+                   Margin="1" 
+                   CornerRadius="10"
+                   HasShadow="True">
+            <ScrollView>
                 <VerticalStackLayout>
                     <Label Text="Új ellenőrzés" FontAttributes="Bold" FontSize="Medium" HorizontalOptions="Center" />
                     <CollectionView x:Name="CheckListTemplate">
@@ -55,8 +66,8 @@
                         </CollectionView.ItemTemplate>
                     </CollectionView>
                 </VerticalStackLayout>
-            </Frame>
-        </ScrollView>
+            </ScrollView>
+        </Frame>
         <Grid BackgroundColor="#80000000"
               IsVisible="{Binding IsLoading}"
               Grid.Row="0"
diff --git a/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml b/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml
index d734d7b..0f170f5 100644
--- a/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml
+++ b/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml
@@ -3,14 +3,17 @@
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="WorkFlowCheck.MAUI.Pages.CheckList.CheckListWorkPage"
              xmlns:templateselectors="clr-namespace:WorkFlowCheck.MAUI.TemplateSelectors"
-              xmlns:local="clr-namespace:WorkFlowCheck.MAUI.Pages.CheckList"
+             xmlns:local="clr-namespace:WorkFlowCheck.MAUI.Pages.CheckList"
+             BackgroundColor="#f0f0f0"
              Title="">
     <Grid>
         <StackLayout Padding="20">
+            <Label x:Name="progressLabel" Text="Folyamatjelző" FontSize="Default" HorizontalOptions="Center" />
+            <ProgressBar x:Name="progressBar" WidthRequest="450" HeightRequest="30" />
             <Label Text="Ellenőrzési feladatok" FontAttributes="Bold" FontSize="Medium" HorizontalOptions="Center" />
             <Frame BorderColor="Gray" Padding="1" Margin="2" HasShadow="True" CornerRadius="2">
                 <CollectionView x:Name="CheckPointCheckListRows" 
-                            HeightRequest="615"
+                            HeightRequest="555"
                             ItemsSource="{Binding CheckListRows}"
                             ItemTemplate="{StaticResource AnswerTemplateSelector}">
                     <CollectionView.EmptyView>
@@ -27,8 +30,8 @@
                     <ColumnDefinition Width="200" />
                 </Grid.ColumnDefinitions>
 
-                <Button Text="Mentés" Command="{Binding SaveCommand}" Grid.Column="0"/>
-                <Button Text="Beküldés" Command="{Binding SendCommand}" Grid.Column="2" Background="DarkRed" TextColor="Yellow"/>
+                <Button x:Name="saveButton" Text="Mentés" Command="{Binding SaveCommand}" Grid.Column="0"/>
+                <Button x:Name="sendButton" Text="Beküldés" Command="{Binding SendCommand}" Grid.Column="2" Background="DarkRed" TextColor="Yellow"/>
             </Grid>
         </StackLayout>
         <Grid BackgroundColor="#80000000"
diff --git a/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml.cs b/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml.cs
index b3973c2..f1934c3 100644
--- a/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml.cs
+++ b/src/WorkFlowCheck.MAUI/Pages/CheckList/CheckListWorkPage.xaml.cs
@@ -3,7 +3,7 @@ using WorkFlowCheck.MAUI.Services.Interfaces;
 using System.Windows.Input;
 using System.Globalization;
 using System.Collections.ObjectModel;
-
+using SkiaSharp;
 
 
 namespace WorkFlowCheck.MAUI.Pages.CheckList;
@@ -18,7 +18,7 @@ public partial class CheckListWorkPage : ContentPage
     private UserDTO _userDTO;
     private bool _isLoading;
 
-   
+
     public bool IsLoading
     {
         get => _isLoading;
@@ -49,16 +49,52 @@ public partial class CheckListWorkPage : ContentPage
     private async void OnSend()
     {
         IsLoading = true;
+        sendButton.IsEnabled = false;
+        saveButton.IsEnabled = false;
         try
         {
             OnSave();
-            await _syncService.SyncCheckListHeaderUp(_checkListHeaderId);
+
+
+
+            await Task.Run(async () =>
+            {
+                var result = await _syncService.SyncCheckListHeader_Up(_checkListHeaderId, (percentage, infostring) =>
+                {
+                    // Direkt UI frissítés
+                    MainThread.BeginInvokeOnMainThread(() =>
+                    {
+                        progressBar.Progress = percentage / 100;
+                        progressLabel.Text = $"{infostring}: {percentage:0.00}%";
+                    });
+                });
+                if (result.IsSuccess)
+                {
+                    if (Navigation.ModalStack.Count > 0)
+                    {
+                        await Shell.Current.Navigation.PopModalAsync();
+                    }
+                }
+                else
+                {
+                    await Application.Current.MainPage.DisplayAlert("Hiba", result.Error, "OK");
+                }
+            });
+
+            progressLabel.Text = "Szinkronizálás befejezve!";
+
         }
         catch (Exception ex)
         {
             await Application.Current.MainPage.DisplayAlert("Hiba", ex.Message, "OK");
+            sendButton.IsEnabled = true;
+            saveButton.IsEnabled = true;
         }
-        IsLoading = false;
+        finally
+        {
+            IsLoading = false;
+        }
+
     }
     private async void OnSave()
     {
@@ -77,7 +113,7 @@ public partial class CheckListWorkPage : ContentPage
                 }
                 await _checkListService.UpdateCheckListRow(checkListRow);
             }
-            await LoadCheckPointCheckListRows();    
+            await LoadCheckPointCheckListRows();
         }
         catch (Exception)
         {
@@ -88,7 +124,7 @@ public partial class CheckListWorkPage : ContentPage
             IsLoading = false;
         }
     }
-    
+
     protected override async void OnAppearing()
     {
         base.OnAppearing();
@@ -105,11 +141,28 @@ public partial class CheckListWorkPage : ContentPage
                 var photo = await MediaPicker.CapturePhotoAsync();
                 if (photo != null)
                 {
+                    //using var stream = await photo.OpenReadAsync();
+                    //using var ms = new MemoryStream();
+                    //await stream.CopyToAsync(ms);
+                    //byte[] photoBytes = ms.ToArray();
+
                     using var stream = await photo.OpenReadAsync();
-                    using var ms = new MemoryStream();
-                    await stream.CopyToAsync(ms);
-                    byte[] photoBytes = ms.ToArray();
-                    checkListRowDTO.Photo = photoBytes;
+                    using var originalBitmap = SKBitmap.Decode(stream);
+
+                    int newWidth = 500;
+                    int newHeight = (int)(originalBitmap.Height * ((double)newWidth / originalBitmap.Width));
+
+                    using var surface = SKSurface.Create(new SKImageInfo(newWidth, newHeight));
+                    using var canvas = surface.Canvas;
+
+                    var sourceRect = new SKRect(0, 0, originalBitmap.Width, originalBitmap.Height);
+                    var destRect = new SKRect(0, 0, newWidth, newHeight);
+                    canvas.DrawBitmap(originalBitmap, sourceRect, destRect);
+
+                    using var resizedImage = surface.Snapshot();
+                    using var data = resizedImage.Encode(SKEncodedImageFormat.Jpeg, 100);
+
+                    checkListRowDTO.Photo = data.ToArray(); 
 
                     await _checkListService.UpdateCheckListRow(checkListRowDTO);
                     await LoadCheckPointCheckListRows();
@@ -148,6 +201,7 @@ public partial class CheckListWorkPage : ContentPage
 
         IsLoading = false;
     }
+    
 }
 public class BindableRadioButton : RadioButton
 {
diff --git a/src/WorkFlowCheck.MAUI/Pages/Security/LoginPage.xaml.cs b/src/WorkFlowCheck.MAUI/Pages/Security/LoginPage.xaml.cs
index 44d02bc..ccb95d2 100644
--- a/src/WorkFlowCheck.MAUI/Pages/Security/LoginPage.xaml.cs
+++ b/src/WorkFlowCheck.MAUI/Pages/Security/LoginPage.xaml.cs
@@ -29,13 +29,14 @@ public partial class LoginPage : ContentPage
             if (response != null && response.IsSuccess)
             {
                 _userService.SetCurrentUser(response.Data);
-                await _syncService.SyncDatas();
+                
+                //await _syncService.SyncDatas();
 
                 var wFCUser = Newtonsoft.Json.JsonConvert.SerializeObject(response.Data);
                 await SecureStorage.Default.SetAsync("WFCUser", "wFCUser");
                 await SecureStorage.Default.SetAsync("AuthToken", response.Data.JwtToken);
 
-                await Shell.Current.GoToAsync("//MainPage");
+                await Shell.Current.GoToAsync("//SyncPage");
             }
             else
             {
diff --git a/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml b/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml
index 4a864b3..7d9a808 100644
--- a/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml
+++ b/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml
@@ -2,13 +2,37 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="WorkFlowCheck.MAUI.Pages.System.SyncPage"
-             Title="Adatok szinkronizálása">
-    <VerticalStackLayout>
-        <Button x:Name="SyncBtn" Text="Adat szinkronizálás" Clicked="OnSyncClicked" Margin="10,10,10,10" />
-        <ActivityIndicator x:Name="LoadingIndicator" 
+             Title="Adatok szinkronizálása"
+             BackgroundColor="#f0f0f0">
+    <ScrollView>
+        <Grid>
+            <Grid.RowDefinitions>
+                <RowDefinition Height="*" />
+                <RowDefinition Height="Auto" />
+                <RowDefinition Height="*" />
+            </Grid.RowDefinitions>
+            <Frame 
+                    Grid.Row="1"    
+                    BorderColor="Gray" 
+                    CornerRadius="20"
+                    Padding="30" 
+                    Margin="1" 
+                    HasShadow="True"
+                    HorizontalOptions="Center"
+                    VerticalOptions="Center"
+                    WidthRequest="{OnPlatform Android=350, iOS=350, WinUI=400, MacCatalyst=400}"
+                    MaximumWidthRequest="500">
+            <VerticalStackLayout Margin="10,10,10,0">
+                <Label x:Name="progressLabel" Text="Folyamatjelző" FontSize="Medium" HorizontalOptions="Center" />
+                <ProgressBar x:Name="progressBar" WidthRequest="300" HeightRequest="40" />
+                <Button x:Name="SyncBtn" Text="Adat szinkronizálás" Clicked="OnSyncClicked" Margin="10,10,10,10" />
+                <ActivityIndicator x:Name="LoadingIndicator" 
                    IsRunning="False" 
                    IsVisible="False"
                    VerticalOptions="Center" 
                    HorizontalOptions="Center" />
-    </VerticalStackLayout>
+            </VerticalStackLayout>
+        </Frame>
+        </Grid>
+    </ScrollView>
 </ContentPage>
\ No newline at end of file
diff --git a/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs b/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs
index e76f4a4..8a46b74 100644
--- a/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs
+++ b/src/WorkFlowCheck.MAUI/Pages/System/SyncPage.xaml.cs
@@ -13,22 +13,52 @@ public partial class SyncPage : ContentPage
 
     private async void OnSyncClicked(object sender, EventArgs e)
     {
+        SyncBtn.IsEnabled = false;
         LoadingIndicator.IsRunning = true;
         LoadingIndicator.IsVisible = true;
+        progressLabel.Text = "Szinkronizálás indítása...";
+        progressBar.Progress = 0;
+
         try
         {
-            await _syncService.SyncDatas();
-        }
-        catch (Exception)
-        {
+            await Task.Run(async () =>
+            {
+                await _syncService.SyncDatas((percentage, infostring) =>
+                {
+                    // Direkt UI frissítés
+                    MainThread.BeginInvokeOnMainThread(() =>
+                    {
+                        progressBar.Progress = percentage / 100;
+                        progressLabel.Text = $"{infostring}: {percentage:0.00}%";
+                    });
+                });
+            });
 
-            throw;
+            progressLabel.Text = "Szinkronizálás befejezve!";
+            await Shell.Current.GoToAsync("//MainPage");
+        }
+        catch (Exception ex)
+        {
+            progressLabel.Text = $"Hiba történt: {ex.Message}";
+        }
+        finally
+        {
+            SyncBtn.IsEnabled = true;
+            LoadingIndicator.IsVisible = false;
+            LoadingIndicator.IsRunning = false;
         }
-        LoadingIndicator.IsVisible = false;
-        LoadingIndicator.IsRunning = false;
-        
     }
 
+    private async Task SimulateLongRunningTask(IProgress<double> progress)
+    {
+        int totalSteps = 50;
+        for (int i = 1; i <= totalSteps; i++)
+        {
+            await Task.Delay(100); // Szimulált hosszú mûvelet
+            double percentage = (double)i / totalSteps * 100;
+            progress.Report(percentage);
+        }
+    }
 
     protected override bool OnBackButtonPressed()
     {
diff --git a/src/WorkFlowCheck.MAUI/Services/CheckListService.cs b/src/WorkFlowCheck.MAUI/Services/CheckListService.cs
index 2f5b099..bb3d6d7 100644
--- a/src/WorkFlowCheck.MAUI/Services/CheckListService.cs
+++ b/src/WorkFlowCheck.MAUI/Services/CheckListService.cs
@@ -89,7 +89,7 @@ namespace WorkFlowCheck.MAUI.Services
 
         public async Task<List<CheckListHeaderDTO>> GetCheckLists(int userId)
         {
-            await _syncService.SyncDatas();
+            //await _syncService.SyncDatas();
 
             var retVal = new List<CheckListHeaderDTO>();
             try
@@ -106,7 +106,7 @@ namespace WorkFlowCheck.MAUI.Services
 
         public async Task<List<CheckListTemplateHeaderDTO>> GetCheckListTemplates(int userId)
         {
-            await _syncService.SyncDatas();
+            //await _syncService.SyncDatas();
 
             var retVal = new List<CheckListTemplateHeaderDTO>();
             try
diff --git a/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs b/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs
index 0007df7..1d8a3f8 100644
--- a/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs
+++ b/src/WorkFlowCheck.MAUI/Services/Interfaces/ISyncService.cs
@@ -7,14 +7,17 @@ using WorkFlowCheck.Common.DTO;
 
 namespace WorkFlowCheck.MAUI.Services.Interfaces
 {
-    public  interface ISyncService
+    public interface ISyncService
     {
-        Task SyncDatas();
-        Task SyncCheckPointsDown();
-        Task SyncCheckPointsUp();
-        Task SyncLocations();
-        Task SyncEquipments();
+        Task SyncDatas(Action<double, string> reportProgress);
+        Task SyncCheckPoints_Down(Action<double, string> reportProgress);
+        Task SyncCheckPoints_Up(Action<double, string> reportProgress);
+        Task SyncLocations_Down(Action<double, string> reportProgress);
+        Task SyncEquipments_Down(Action<double, string> reportProgress);
 
-        Task SyncCheckListHeaderUp(int Id);
+        Task SyncCheckListTemplates_Down(Action<double, string> reportProgress);
+
+        Task SyncCheckListHeader_Down(Action<double, string> reportProgress);
+        Task<ApiResponseDTO<string>> SyncCheckListHeader_Up(int Id, Action<double, string> reportProgress);
     }
 }
diff --git a/src/WorkFlowCheck.MAUI/Services/SyncService.cs b/src/WorkFlowCheck.MAUI/Services/SyncService.cs
index 8685882..3566140 100644
--- a/src/WorkFlowCheck.MAUI/Services/SyncService.cs
+++ b/src/WorkFlowCheck.MAUI/Services/SyncService.cs
@@ -1,11 +1,15 @@
-using AutoMapper;
+using Android.Health.Connect.DataTypes.Units;
+using AutoMapper;
+using Java.Net;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using Newtonsoft.Json;
 using System.Net.Http.Json;
+using System.Text;
 using WorkFlowCheck.Common.DTO;
 using WorkFlowCheck.MAUI.DataLayer;
 using WorkFlowCheck.MAUI.DataLayer.Entities;
+using WorkFlowCheck.MAUI.Handlers;
 using WorkFlowCheck.MAUI.Services.Interfaces;
 using Location = WorkFlowCheck.MAUI.DataLayer.Entities.Location;
 
@@ -18,30 +22,27 @@ namespace WorkFlowCheck.MAUI.Services
         {
             _userService = userService;
         }
-        public async Task SyncDatas()
+        public async Task SyncDatas(Action<double, string> reportProgress)
         {
-            await SyncCheckPointsDown();
-            await SyncLocations();
-            await SyncEquipments();
-            await SyncCheckListTemplates();
-            await SyncCheckList();
+            await SyncCheckPoints_Down(reportProgress);
+            await SyncLocations_Down(reportProgress);
+            await SyncEquipments_Down(reportProgress);
+            await SyncCheckListTemplates_Down(reportProgress);
+            await SyncCheckListHeader_Down(reportProgress);
         }
-        public async Task SyncCheckPointsDown()
+        public async Task SyncCheckPoints_Down(Action<double, string> reportProgress)
         {
             try
             {
-                await PrepareAuthenticatedRequestAsync();
-                // Az API végpont meghatározása
                 string endpoint = $"{_httpClient.BaseAddress}api/Sync/GetAllCheckPoints";
+                var responseList = DownloadDataAsync<CheckPointDTO>(endpoint, reportProgress).Result;
 
-                // HTTP GET kérés küldése
-                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<CheckPointDTO>>>(endpoint);
-                if (response != null)
+                if (responseList != null)
                 {
-                    if (response.IsSuccess)
+                    if (responseList.IsSuccess)
                     {
                         var entityList = await _dbContext.CheckPoints.ToListAsync();
-                        var missingItems = response.Data.Where(f => !entityList.Any(s => s.Id == f.Id)).ToList();
+                        var missingItems = responseList.Data.Where(f => !entityList.Any(s => s.Id == f.Id)).ToList();
 
                         var mappedMissingItems = _mapper.Map<List<CheckPoint>>(missingItems);
 
@@ -52,49 +53,14 @@ namespace WorkFlowCheck.MAUI.Services
             }
             catch (Exception ex)
             {
-                // Hiba visszaadása
-
+                Console.WriteLine($"Hiba történt: {ex.Message}");
             }
         }
-        public async Task SyncCheckPointsUp()
+        public async Task SyncCheckPoints_Up(Action<double, string> reportProgress)
         {
             try
             {
-                await PrepareAuthenticatedRequestAsync();
-                // Az API végpont meghatározása
-                string endpoint = $"{_httpClient.BaseAddress}api/Sync/GetAllCheckPoints";
-                // HTTP GET kérés küldése
-                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<CheckPointDTO>>>(endpoint);
-                if (response != null)
-                {
-                    if (response.IsSuccess)
-                    {
-                        var entityList = await _dbContext.CheckPoints.ToListAsync();
-                        var missingItems = response.Data.Where(f => !entityList.Any(s => s.Id == f.Id & s.Code == f.Code)).ToList();
 
-
-
-                        var checkPointListDTO = _mapper.Map<List<CheckPointDTO>>(missingItems);
-
-                        foreach (var item in checkPointListDTO)
-                        {
-                            var entity = await _dbContext.CheckPoints.Where(w => w.Id == item.Id).FirstOrDefaultAsync();
-                            if (entity != null)
-                            {
-                                item.ShortName = entity.ShortName;
-                                item.Code = entity.Code;
-                            }
-                        }
-
-                        endpoint = $"{_httpClient.BaseAddress}api/Sync/UpdateAllCheckPoint";
-                        using (HttpResponseMessage httpResponseMessage = await _httpClient.PostAsJsonAsync(endpoint, checkPointListDTO))
-                        {
-                            httpResponseMessage.EnsureSuccessStatusCode();
-                            var jsonString = await httpResponseMessage.Content.ReadAsStringAsync();
-                            response = JsonConvert.DeserializeObject<ApiResponseDTO<List<CheckPointDTO>>>(jsonString);
-                        }
-                    }
-                }
             }
             catch (Exception ex)
             {
@@ -102,22 +68,19 @@ namespace WorkFlowCheck.MAUI.Services
             }
         }
 
-        public async Task SyncLocations()
+        public async Task SyncLocations_Down(Action<double, string> reportProgress)
         {
             try
             {
-                await PrepareAuthenticatedRequestAsync();
-                // Az API végpont meghatározása
                 string endpoint = $"{_httpClient.BaseAddress}api/Sync/GetAllLocations";
+                var responseList = DownloadDataAsync<LocationDTO>(endpoint, reportProgress).Result;
 
-                // HTTP GET kérés küldése
-                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<LocationDTO>>>(endpoint);
-                if (response != null)
+                if (responseList != null)
                 {
-                    if (response.IsSuccess)
+                    if (responseList.IsSuccess)
                     {
                         var entityList = await _dbContext.Locations.ToListAsync();
-                        var missingItems = response.Data.Where(f => !entityList.Any(s => s.Id == f.Id)).ToList();
+                        var missingItems = responseList.Data.Where(f => !entityList.Any(s => s.Id == f.Id)).ToList();
 
                         var mappedMissingItems = _mapper.Map<List<Location>>(missingItems);
 
@@ -132,22 +95,19 @@ namespace WorkFlowCheck.MAUI.Services
 
             }
         }
-        public async Task SyncEquipments()
+        public async Task SyncEquipments_Down(Action<double, string> reportProgress)
         {
             try
             {
-                await PrepareAuthenticatedRequestAsync();
-                // Az API végpont meghatározása
                 string endpoint = $"{_httpClient.BaseAddress}api/Sync/GetAllEquipments";
+                var responseList = DownloadDataAsync<LocationDTO>(endpoint, reportProgress).Result;
 
-                // HTTP GET kérés küldése
-                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<EquipmentDTO>>>(endpoint);
-                if (response != null)
+                if (responseList != null)
                 {
-                    if (response.IsSuccess)
+                    if (responseList.IsSuccess)
                     {
                         var entityList = await _dbContext.Locations.ToListAsync();
-                        var missingItems = response.Data.Where(f => !entityList.Any(s => s.Id == f.Id)).ToList();
+                        var missingItems = responseList.Data.Where(f => !entityList.Any(s => s.Id == f.Id)).ToList();
 
                         var mappedMissingItems = _mapper.Map<List<Equipment>>(missingItems);
 
@@ -162,23 +122,20 @@ namespace WorkFlowCheck.MAUI.Services
 
             }
         }
-        public async Task SyncCheckListTemplates()
+        public async Task SyncCheckListTemplates_Down(Action<double, string> reportProgress)
         {
             try
             {
-                await PrepareAuthenticatedRequestAsync();
-                // Az API végpont meghatározása
                 var userId = _userService.GetCurrentUser()?.Id;
                 string endpoint = $"{_httpClient.BaseAddress}api/Sync/GetAllCheckListTemplateHeader/{userId}";
+                var responseList = DownloadDataAsync<CheckListTemplateHeaderDTO>(endpoint, reportProgress).Result;
 
-                // HTTP GET kérés küldése
-                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<CheckListTemplateHeaderDTO>>>(endpoint);
-                if (response != null)
+                if (responseList != null)
                 {
-                    if (response.IsSuccess)
+                    if (responseList.IsSuccess)
                     {
                         var checkListTemplateHeaderList = await _dbContext.CheckListTemplateHeaders.ToListAsync();
-                        var missingItems = response.Data.Where(f => !checkListTemplateHeaderList.Any(s => s.Id == f.Id)).ToList();
+                        var missingItems = responseList.Data.Where(f => !checkListTemplateHeaderList.Any(s => s.Id == f.Id)).ToList();
 
                         var missingCheckListTemplateHeaders = _mapper.Map<List<CheckListTemplateHeader>>(missingItems);
 
@@ -193,96 +150,123 @@ namespace WorkFlowCheck.MAUI.Services
 
             }
         }
-        public async Task SyncCheckList()
+
+
+        public async Task SyncCheckListHeader_Down(Action<double, string> reportProgress)
         {
             try
             {
-                await PrepareAuthenticatedRequestAsync();
-                if (_userService == null)
-                {
-                    return;
-                }
-                // Az API végpont meghatározása
                 var userId = _userService.GetCurrentUser()?.Id;
                 string endpoint = $"{_httpClient.BaseAddress}api/Sync/GetAllCheckListHeader/{userId}";
+                var responseList = DownloadDataAsync<CheckListHeaderDTO>(endpoint, reportProgress).Result;
 
-                // HTTP GET kérés küldése
-
-                var response = await _httpClient.GetFromJsonAsync<ApiResponseDTO<List<CheckListHeaderDTO>>>(endpoint);
-                if (response != null)
+                if (responseList != null && responseList.IsSuccess)
                 {
-                    if (response.IsSuccess)
+                    var checkListHeaderList = await _dbContext.CheckListHeaders.ToListAsync();
+                    var missingItems = responseList.Data
+                        .Where(f => !checkListHeaderList.Any(s => s.GuidNumber == f.GuidNumber))
+                        .ToList();
+
+                    var missingCheckListHeaders = _mapper.Map<List<CheckListHeader>>(missingItems);
+                    _dbContext.CheckListHeaders.AddRange(missingCheckListHeaders);
+                    await _dbContext.SaveChangesAsync();
+
+                    int i = 1;
+                    foreach (var item in missingItems)
                     {
-                        var checkListHeaderList = await _dbContext.CheckListHeaders.ToListAsync();
-                        var missingItems = response.Data.Where(f => !checkListHeaderList.Any(s => s.GuidNumber == f.GuidNumber)).ToList();
-
-                        var missingCheckListHeaders = _mapper.Map<List<CheckListHeader>>(missingItems);
-
-                        _dbContext.CheckListHeaders.AddRange(missingCheckListHeaders);
-                        await _dbContext.SaveChangesAsync();
-
-                        foreach (var item in missingItems)
-                        {
-                            var checkListHeaderDTO = item as CheckListHeaderDTO;
-
-                            foreach (var checkListRowDTO in checkListHeaderDTO.CheckListRowDTO)
-                            {
-                                var checkListRow = _dbContext.CheckListRows.Where(w => w.GuidNumber == checkListRowDTO.GuidNumber).FirstOrDefault();
-                                var isAdd = false;
-                                if (checkListRow == null)
-                                {
-                                    isAdd = true;
-                                    checkListRow = new CheckListRow();
-                                    checkListRow.CheckListHeaderId = checkListHeaderDTO.Id;
-                                }
-                                checkListRow.Answer = checkListRowDTO.Answer;
-                                checkListRow.CheckListTemplateRowId = checkListRowDTO.CheckListTemplateRowId;
-                                checkListRow.GuidNumber = checkListRowDTO.GuidNumber;
-                                checkListRow.Photo = checkListRowDTO.Photo;
-
-                                if (isAdd) _dbContext.CheckListRows.Add(checkListRow);
-                                await _dbContext.SaveChangesAsync();
-                            }
-                        }
+                        double itemPercentage = (double)i / missingItems.Count * 100;
+                        reportProgress(itemPercentage, "Adatbázis szinkronizáció...");  // Közvetlen progress jelentés
+                        i++;
                     }
-
                 }
             }
             catch (Exception ex)
             {
-                // Hiba visszaadása
-
+                Console.WriteLine($"Hiba történt: {ex.Message}");
             }
         }
-
-        public async Task SyncCheckListHeaderUp(int Id)
+        public async Task<ApiResponseDTO<string>> SyncCheckListHeader_Up(int Id, Action<double, string> reportProgress)
         {
+            var retVal = new ApiResponseDTO<string>();
             try
             {
                 await PrepareAuthenticatedRequestAsync();
 
                 var checkListHeader = await _dbContext.CheckListHeaders
-                                                    .Where(w => w.Id == Id) 
+                                                    .Where(w => w.Id == Id)
                                                     .Include(i => i.CheckListRows)
                                                     .AsNoTracking()
                                                     .FirstOrDefaultAsync();
-                
+
                 var checkListHeaderDTO = _mapper.Map<CheckListHeaderDTO>(checkListHeader);
-
-
                 var endpoint = $"{_httpClient.BaseAddress}api/Sync/UpdateCheckListHeader";
-                using (HttpResponseMessage httpResponseMessage = await _httpClient.PostAsJsonAsync(endpoint, checkListHeaderDTO))
+
+                var json = JsonConvert.SerializeObject(checkListHeaderDTO);
+                var jsonBytes = Encoding.UTF8.GetBytes(json);
+                var jsonStream = new MemoryStream(jsonBytes);
+
+                var progressContent = new ProgressableStreamContent(jsonStream, 8192, (uploaded, total) =>
+                {
+                    double percentage = (double)uploaded / total * 100;
+                    reportProgress(percentage, "Beküldés...");
+                });
+
+                progressContent.Headers.ContentType = new System.Net.Http.Headers.MediaTypeHeaderValue("application/json");
+
+                using (HttpResponseMessage httpResponseMessage = await _httpClient.PostAsync(endpoint, progressContent))
                 {
                     httpResponseMessage.EnsureSuccessStatusCode();
                     var jsonString = await httpResponseMessage.Content.ReadAsStringAsync();
-                    var response = JsonConvert.DeserializeObject<ApiResponseDTO<CheckListHeaderDTO>>(jsonString);
+                    retVal = JsonConvert.DeserializeObject<ApiResponseDTO<string>>(jsonString);
                 }
+
             }
             catch (Exception ex)
             {
-                // Hiba visszaadása
+                retVal.IsSuccess = false;
+                retVal.Errors.Add(ex.Message);  
+            }
+            return retVal;
+        }
+
+        public async Task<ApiResponseDTO<List<T>>> DownloadDataAsync<T>(string endpoint, Action<double, string> reportProgress)
+        {
+            await PrepareAuthenticatedRequestAsync();
+
+            using var response = await _httpClient.GetAsync(endpoint, HttpCompletionOption.ResponseHeadersRead);
+            response.EnsureSuccessStatusCode();
+
+            using var stream = await response.Content.ReadAsStreamAsync();
+            using var memoryStream = new MemoryStream();
+
+            var buffer = new byte[8192];
+            long totalRead = 0;
+            int bytesRead;
+            int chunkCounter = 0;
+
+            while ((bytesRead = await stream.ReadAsync(buffer, 0, buffer.Length)) > 0)
+            {
+                await memoryStream.WriteAsync(buffer, 0, bytesRead);
+                totalRead += bytesRead;
+                chunkCounter++;
+
+                // Gyakori progress frissítés
+                if (chunkCounter % 5 == 0) // 5 blokk után
+                {
+                    double estimatedProgress = Math.Min((double)totalRead / (8192 * 100) * 100, 99);
+                    reportProgress(estimatedProgress, "Letöltés ...");
+                }
             }
 
+            // Végső progress 100%-ra állítása
+            reportProgress(100, "Letöltés ... kész!");
+
+            memoryStream.Position = 0;
+            var jsonString = Encoding.UTF8.GetString(memoryStream.ToArray());
+
+            // Generikus deszerializálás
+            var responseList = JsonConvert.DeserializeObject<ApiResponseDTO<List<T>>>(jsonString);
+            return responseList;
         }
     }
 }
diff --git a/src/WorkFlowCheck.MAUI/WorkFlowCheck.MAUI.csproj b/src/WorkFlowCheck.MAUI/WorkFlowCheck.MAUI.csproj
index 0d54262..8868099 100644
--- a/src/WorkFlowCheck.MAUI/WorkFlowCheck.MAUI.csproj
+++ b/src/WorkFlowCheck.MAUI/WorkFlowCheck.MAUI.csproj
@@ -79,6 +79,8 @@
 		<PackageReference Include="Microsoft.Maui.Controls.Compatibility" Version="$(MauiVersion)" />
 		<PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="8.0.1" />
 		<PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+		<PackageReference Include="SixLabors.ImageSharp" Version="3.1.7" />
+		<PackageReference Include="SkiaSharp" Version="3.116.1" />
 		<PackageReference Include="sqlite-net-pcl" Version="1.9.172" />
 	</ItemGroup>