feat: Add Face Matcher functionality and related settings

- Implemented FilePathToBitmapConverter for image loading.
- Enhanced DataModel with commands and properties for Face Matcher.
- Created FaceMatcherResultItem model to store results.
- Updated SettingsDto to include Face Matcher paths and tolerance.
- Introduced PickerPreferenceService for managing folder paths.
- Expanded AiSettingsViewModel to manage Face Matcher settings and results.

imagecatalog/AvaloniaMainWindow.axaml.cs

@@ -5,6 +5,8 @@ using Avalonia.Layout;
 using Avalonia.Platform.Storage;
 using Avalonia.Styling;
 using Avalonia.Threading;
+using ImageCatalog_2.Services;
+using Microsoft.Extensions.DependencyInjection;
 using System.ComponentModel;
 using System.IO;
 
@@ -13,6 +15,7 @@ namespace ImageCatalog_2;
 public partial class AvaloniaMainWindow : Window
 {
     private readonly DataModel _model;
+    private readonly PickerPreferenceService _pickerPreferenceService;
     private bool _isDarkTheme;
 
     public AvaloniaMainWindow(DataModel model)
@@ -20,6 +23,7 @@ public partial class AvaloniaMainWindow : Window
         InitializeComponent();
 
         _model = model;
+        _pickerPreferenceService = Program.ServiceProvider.GetRequiredService<PickerPreferenceService>();
         DataContext = _model;
 
         Opened += (_, _) => SyncThemeStateFromCurrentTheme();
@@ -30,35 +34,43 @@ public partial class AvaloniaMainWindow : Window
 
         _model.SelectSourceFolderRequested += async (_, _) =>
         {
+            var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(StorageProvider, PickerPreferenceKeys.SourceFolder, _model.SourcePath);
             var folders = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
             {
-                Title = "Seleziona cartella sorgente"
+                Title = "Seleziona cartella sorgente",
+                SuggestedStartLocation = suggestedStartLocation
             });
 
             if (folders.Count > 0)
             {
                 _model.SourcePath = folders[0].Path.LocalPath + Path.DirectorySeparatorChar;
+                _pickerPreferenceService.RememberPath(PickerPreferenceKeys.SourceFolder, _model.SourcePath);
             }
         };
 
         _model.SelectDestinationFolderRequested += async (_, _) =>
         {
+            var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(StorageProvider, PickerPreferenceKeys.DestinationFolder, _model.DestinationPath);
             var folders = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
             {
-                Title = "Seleziona cartella destinazione"
+                Title = "Seleziona cartella destinazione",
+                SuggestedStartLocation = suggestedStartLocation
             });
 
             if (folders.Count > 0)
             {
                 _model.DestinationPath = folders[0].Path.LocalPath + Path.DirectorySeparatorChar;
+                _pickerPreferenceService.RememberPath(PickerPreferenceKeys.DestinationFolder, _model.DestinationPath);
             }
         };
 
         _model.SelectLogoFileRequested += async (_, _) =>
         {
+            var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(StorageProvider, PickerPreferenceKeys.LogoFile, _model.LogoFile);
             var files = await StorageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
             {
                 Title = "Seleziona logo",
+                SuggestedStartLocation = suggestedStartLocation,
                 FileTypeFilter =
                 [
                     new FilePickerFileType("Immagini") { Patterns = ["*.jpg", "*.jpeg", "*.png", "*.bmp", "*.gif"] }
@@ -68,34 +80,41 @@ public partial class AvaloniaMainWindow : Window
             if (files.Count > 0)
             {
                 _model.LogoFile = files[0].Path.LocalPath;
+                _pickerPreferenceService.RememberPath(PickerPreferenceKeys.LogoFile, _model.LogoFile);
             }
         };
 
         _model.SelectModelsFolderRequested += async (_, _) =>
         {
+            var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(StorageProvider, PickerPreferenceKeys.ModelsFolder, _model.ModelsFolderPath);
             var folders = await StorageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
             {
-                Title = "Seleziona cartella modelli"
+                Title = "Seleziona cartella modelli",
+                SuggestedStartLocation = suggestedStartLocation
             });
 
             if (folders.Count > 0)
             {
                 _model.ModelsFolderPath = folders[0].Path.LocalPath + Path.DirectorySeparatorChar;
+                _pickerPreferenceService.RememberPath(PickerPreferenceKeys.ModelsFolder, _model.ModelsFolderPath);
             }
         };
 
         _model.SelectCsvOutputRequested += async (_, _) =>
         {
+            var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(StorageProvider, PickerPreferenceKeys.CsvOutput, _model.CsvOutputPath);
             var file = await StorageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
             {
                 Title = "Salva CSV",
                 DefaultExtension = "csv",
-                FileTypeChoices = [new FilePickerFileType("CSV") { Patterns = ["*.csv"] }]
+                FileTypeChoices = [new FilePickerFileType("CSV") { Patterns = ["*.csv"] }],
+                SuggestedStartLocation = suggestedStartLocation
             });
 
             if (file is not null)
             {
                 _model.CsvOutputPath = file.Path.LocalPath;
+                _pickerPreferenceService.RememberPath(PickerPreferenceKeys.CsvOutput, _model.CsvOutputPath);
             }
         };
 
@@ -148,7 +167,7 @@ public partial class AvaloniaMainWindow : Window
 
     private async void AvaloniaMainWindow_Closing(object? sender, CancelEventArgs e)
     {
-        if (_isStoppingFaceEncoderForClose || !_model.IsFaceEncoderRunning)
+        if (_isStoppingFaceEncoderForClose || (!_model.IsFaceEncoderRunning && !_model.IsFaceMatcherRunning))
         {
             return;
         }
@@ -158,7 +177,15 @@ public partial class AvaloniaMainWindow : Window
 
         try
         {
-            await _model.StopFaceEncoderAsync("Arresto face encoder in chiusura...", waitForExit: true);
+            if (_model.IsFaceMatcherRunning)
+            {
+                await _model.StopFaceMatcherAsync("Arresto face matcher in chiusura...", waitForExit: true);
+            }
+
+            if (_model.IsFaceEncoderRunning)
+            {
+                await _model.StopFaceEncoderAsync("Arresto face encoder in chiusura...", waitForExit: true);
+            }
         }
         finally
         {

imagecatalog/AvaloniaViews/FaceAiTabView.axaml

@@ -1,109 +1,326 @@
 <UserControl xmlns="https://github.com/avaloniaui"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:avaloniaDataGrid="clr-namespace:Avalonia.Controls;assembly=Avalonia.Controls.DataGrid"
              xmlns:iconPacks="https://github.com/MahApps/IconPacks.Avalonia"
+             xmlns:converters="clr-namespace:ImageCatalog_2.Converters"
              x:Class="ImageCatalog_2.AvaloniaViews.FaceAiTabView">
-    <ScrollViewer>
-        <StackPanel Margin="4" Spacing="6">
-            <TextBlock Text="Face Recognition Encoder" FontWeight="Bold" />
-            <TextBlock Text="Esegue il face encoder usando la cartella Destinazione corrente come --images e genera automaticamente file .pkl e log nella cartella di output scelta."
-                       TextWrapping="Wrap" Opacity="0.8" />
+    <UserControl.Resources>
+        <converters:FilePathToBitmapConverter x:Key="FilePathToBitmapConverter" />
+    </UserControl.Resources>
 
-            <TextBlock Text="Cartella Face Encoder" FontWeight="Bold" Margin="0,4,0,0" />
-            <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                <TextBlock Grid.Column="0" Text="Percorso:" VerticalAlignment="Center" />
-                <TextBox Grid.Column="1" Name="FaceExecutablePathTextBox" Text="{Binding FaceExecutablePath, Mode=TwoWay}" Watermark="C:\tools\Face_Recognition_Windows" />
-                <Button Grid.Column="2" Name="FaceSelectExecutableButton" Click="SelectFaceExecutable_Click" Width="104" Margin="6,0,0,0">
-                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                        <iconPacks:PackIconMaterial Kind="FolderOutline" Width="14" Height="14" />
-                        <TextBlock Text="Scegli..." />
+    <TabControl Margin="4">
+        <TabItem Header="Encoder">
+            <ScrollViewer>
+                <StackPanel Margin="4" Spacing="6">
+                    <TextBlock Text="Face Recognition Encoder" FontWeight="Bold" />
+                    <TextBlock Text="Esegue il face encoder usando la cartella Destinazione corrente come --images e genera automaticamente file .pkl e log nella cartella di output scelta."
+                               TextWrapping="Wrap" Opacity="0.8" />
+
+                    <TextBlock Text="Cartella Face Encoder" FontWeight="Bold" Margin="0,4,0,0" />
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Percorso:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceExecutablePathTextBox" Text="{Binding FaceExecutablePath, Mode=TwoWay}" Watermark="C:\tools\Face_Recognition_Windows" />
+                        <Button Grid.Column="2" Name="FaceSelectExecutableButton" Click="SelectFaceExecutable_Click" Width="104" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="FolderOutline" Width="14" Height="14" />
+                                <TextBlock Text="Scegli..." />
+                            </StackPanel>
+                        </Button>
+                        <Button Grid.Column="3" Name="FaceOpenExecutableButton" Click="OpenFaceExecutableFolder_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+
+                    <StackPanel Orientation="Horizontal" Spacing="12">
+                        <CheckBox Content="Ricorsivo (--recursive)" IsChecked="{Binding FaceRecursive, Mode=TwoWay}" />
+                        <CheckBox Content="Includi thumbnail (--include-tn)" IsChecked="{Binding FaceIncludeThumbnails, Mode=TwoWay}" />
+                        <CheckBox Content="Upsample (--upsample)" IsChecked="{Binding FaceUpsample, Mode=TwoWay}" />
+                        <CheckBox Content="Usa GPU"
+                                  IsChecked="{Binding UseFaceGpu, Mode=TwoWay}"
+                                  IsEnabled="{Binding FaceGpuOptionEnabled}" />
                     </StackPanel>
-                </Button>
-                <Button Grid.Column="3" Name="FaceOpenExecutableButton" Click="OpenFaceExecutableFolder_Click" Width="72" Margin="6,0,0,0">
-                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                        <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                        <TextBlock Text="Apri" />
+                    <TextBlock Text="Seleziona la cartella base di Face Recognition Windows: l'app sceglie automaticamente face_encoder_cpu.exe o face_encoder_gpu.exe in base al checkbox GPU."
+                               TextWrapping="Wrap"
+                               Opacity="0.75" />
+
+                    <Grid ColumnDefinitions="Auto,120,Auto,120,*" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Parallelismo:" VerticalAlignment="Center" />
+                        <ComboBox Grid.Column="1" ItemsSource="{Binding FaceParallelismOptions}" SelectedItem="{Binding FaceParallelism, Mode=TwoWay}" />
+                        <TextBlock Grid.Column="2" Text="Min size:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="3" Text="{Binding FaceMinSize, Mode=TwoWay}" Watermark="35" />
+                        <TextBlock Grid.Column="4" Text="Usa --multicore in CPU e --multiprocess in GPU." VerticalAlignment="Center" Opacity="0.75" />
+                    </Grid>
+
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Sorgente:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceDestinationPathTextBox" Text="{Binding DestinationPath, Mode=OneWay}" IsReadOnly="True" />
+                        <Button Grid.Column="3" Name="FaceOpenDestinationButton" Click="OpenFaceDestinationFolder_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+
+                    <TextBlock Text="Output encodings" FontWeight="Bold" Margin="0,4,0,0" />
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Cartella out:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceOutputFolderTextBox" Text="{Binding FaceOutputFolderPath, Mode=TwoWay}" Watermark="C:\output\face_encoder" />
+                        <Button Grid.Column="2" Name="FaceSelectOutputButton" Click="SelectFaceOutputFolder_Click" Width="104" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="FolderOutline" Width="14" Height="14" />
+                                <TextBlock Text="Scegli..." />
+                            </StackPanel>
+                        </Button>
+                        <Button Grid.Column="3" Name="FaceOpenOutputButton" Click="OpenFaceOutputFolder_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+                    <TextBlock Text="I file vengono creati come face_encodings_yyyyMMdd_HHmmss_nomecartella.pkl e encoder_log_yyyyMMdd_HHmmss_nomecartella.txt."
+                               TextWrapping="Wrap"
+                               Opacity="0.75" />
+
+                    <StackPanel Orientation="Horizontal" Spacing="6" Margin="0,6,0,0">
+                        <Button Name="FaceRunButton" Command="{Binding StartFaceEncoderCommand}">
+                            <StackPanel Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
+                                <ProgressBar Width="18"
+                                             Height="18"
+                                             IsIndeterminate="True"
+                                             IsVisible="{Binding IsFaceEncoderRunning}"
+                                             ShowProgressText="False"
+                                             VerticalAlignment="Center" />
+                                <TextBlock Text="Esegui Face Encoder" VerticalAlignment="Center" />
+                            </StackPanel>
+                        </Button>
+                        <Button Content="Stop" Command="{Binding StopFaceEncoderCommand}" />
+                        <TextBlock VerticalAlignment="Center" Text="{Binding FaceStatusMessage}" />
                     </StackPanel>
-                </Button>
-            </Grid>
 
-            <StackPanel Orientation="Horizontal" Spacing="12">
-                <CheckBox Content="Ricorsivo (--recursive)" IsChecked="{Binding FaceRecursive, Mode=TwoWay}" />
-                <CheckBox Content="Includi thumbnail (--include-tn)" IsChecked="{Binding FaceIncludeThumbnails, Mode=TwoWay}" />
-                <CheckBox Content="Upsample (--upsample)" IsChecked="{Binding FaceUpsample, Mode=TwoWay}" />
-                <CheckBox Content="Usa GPU"
-                          IsChecked="{Binding UseFaceGpu, Mode=TwoWay}"
-                          IsEnabled="{Binding FaceGpuOptionEnabled}" />
-            </StackPanel>
-            <TextBlock Text="Seleziona la cartella base di Face Recognition Windows: l'app sceglie automaticamente face_encoder_cpu.exe o face_encoder_gpu.exe in base al checkbox GPU."
-                       TextWrapping="Wrap"
-                       Opacity="0.75" />
+                    <TextBlock Text="Output comando" FontWeight="Bold" Margin="0,6,0,0" />
+                    <TextBox Name="FaceOutputTextBox"
+                             Text="{Binding FaceCommandOutput}"
+                             IsReadOnly="True"
+                             AcceptsReturn="True"
+                             TextWrapping="Wrap"
+                             FontFamily="Cascadia Mono, Consolas, monospace"
+                             Height="220"
+                             ScrollViewer.VerticalScrollBarVisibility="Auto"
+                             ScrollViewer.HorizontalScrollBarVisibility="Auto" />
+                </StackPanel>
+            </ScrollViewer>
+        </TabItem>
 
-            <Grid ColumnDefinitions="Auto,120,Auto,120,*" ColumnSpacing="6">
-                <TextBlock Grid.Column="0" Text="Parallelismo:" VerticalAlignment="Center" />
-                <ComboBox Grid.Column="1" ItemsSource="{Binding FaceParallelismOptions}" SelectedItem="{Binding FaceParallelism, Mode=TwoWay}" />
-                <TextBlock Grid.Column="2" Text="Min size:" VerticalAlignment="Center" />
-                <TextBox Grid.Column="3" Text="{Binding FaceMinSize, Mode=TwoWay}" Watermark="35" />
-                <TextBlock Grid.Column="4" Text="Usa --multicore in CPU e --multiprocess in GPU." VerticalAlignment="Center" Opacity="0.75" />
-            </Grid>
+        <TabItem Header="Matcher Test">
+            <ScrollViewer>
+                <StackPanel Margin="4" Spacing="6">
+                    <TextBlock Text="Face Matcher Test" FontWeight="Bold" />
+                    <TextBlock Text="Esegue face_matcher.exe su un'immagine scelta a runtime e confronta i risultati con gli encodings .pkl. I match vengono poi risolti per nome file dentro la cartella Destinazione corrente per facilitare il debug visivo."
+                               TextWrapping="Wrap" Opacity="0.8" />
 
-            <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                <TextBlock Grid.Column="0" Text="Sorgente:" VerticalAlignment="Center" />
-                <TextBox Grid.Column="1" Name="FaceDestinationPathTextBox" Text="{Binding DestinationPath, Mode=OneWay}" IsReadOnly="True" />
-                <Button Grid.Column="3" Name="FaceOpenDestinationButton" Click="OpenFaceDestinationFolder_Click" Width="72" Margin="6,0,0,0">
-                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                        <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                        <TextBlock Text="Apri" />
+                    <TextBlock Text="Eseguibile matcher" FontWeight="Bold" Margin="0,4,0,0" />
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Percorso:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceMatcherExecutablePathTextBox" Text="{Binding FaceMatcherExecutablePath, Mode=TwoWay}" Watermark="C:\tools\Face_Recognition_Windows\face_matcher.exe" />
+                        <Button Grid.Column="2" Click="SelectFaceMatcherExecutable_Click" Width="104" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="FileOutline" Width="14" Height="14" />
+                                <TextBlock Text="Scegli..." />
+                            </StackPanel>
+                        </Button>
+                        <Button Grid.Column="3" Click="OpenFaceMatcherExecutable_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+
+                    <TextBlock Text="Immagine da testare" FontWeight="Bold" Margin="0,4,0,0" />
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Immagine:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceMatcherImagePathTextBox" Text="{Binding FaceMatcherSelectedImagePath, Mode=TwoWay}" Watermark="Percorso immagine da usare per il match" />
+                        <Button Grid.Column="2" Click="SelectFaceMatcherImage_Click" Width="104" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="ImageOutline" Width="14" Height="14" />
+                                <TextBlock Text="Scegli..." />
+                            </StackPanel>
+                        </Button>
+                        <Button Grid.Column="3" Click="OpenFaceMatcherImage_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+                    <TextBlock Text="Questa immagine resta solo runtime e non viene salvata nel file impostazioni."
+                               TextWrapping="Wrap"
+                               Opacity="0.75" />
+                    <StackPanel Spacing="4">
+                        <TextBlock Text="Preview immagine selezionata" FontWeight="SemiBold" />
+                        <Border BorderThickness="1" BorderBrush="#808080" Padding="4" HorizontalAlignment="Left">
+                            <Image Width="184"
+                                   Height="120"
+                                   Stretch="UniformToFill"
+                                   Source="{Binding FaceMatcherSelectedImagePath, Converter={StaticResource FilePathToBitmapConverter}}" />
+                        </Border>
                     </StackPanel>
-                </Button>
-            </Grid>
 
-            <TextBlock Text="Output encodings" FontWeight="Bold" Margin="0,4,0,0" />
-            <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
-                <TextBlock Grid.Column="0" Text="Cartella out:" VerticalAlignment="Center" />
-                <TextBox Grid.Column="1" Name="FaceOutputFolderTextBox" Text="{Binding FaceOutputFolderPath, Mode=TwoWay}" Watermark="C:\output\face_encoder" />
-                <Button Grid.Column="2" Name="FaceSelectOutputButton" Click="SelectFaceOutputFolder_Click" Width="104" Margin="6,0,0,0">
-                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                        <iconPacks:PackIconMaterial Kind="FolderOutline" Width="14" Height="14" />
-                        <TextBlock Text="Scegli..." />
-                    </StackPanel>
-                </Button>
-                <Button Grid.Column="3" Name="FaceOpenOutputButton" Click="OpenFaceOutputFolder_Click" Width="72" Margin="6,0,0,0">
-                    <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
-                        <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
-                        <TextBlock Text="Apri" />
-                    </StackPanel>
-                </Button>
-            </Grid>
-            <TextBlock Text="I file vengono creati come face_encodings_yyyyMMdd_HHmmss_nomecartella.pkl e encoder_log_yyyyMMdd_HHmmss_nomecartella.txt."
-                       TextWrapping="Wrap"
-                       Opacity="0.75" />
+                    <Grid ColumnDefinitions="Auto,*,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Destinazione attuale:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceMatcherDestinationPathTextBox" Text="{Binding DestinationPath, Mode=OneWay}" IsReadOnly="True" />
+                        <Button Grid.Column="2" Click="OpenFaceDestinationFolder_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
 
-            <StackPanel Orientation="Horizontal" Spacing="6" Margin="0,6,0,0">
-                <Button Name="FaceRunButton" Command="{Binding StartFaceEncoderCommand}">
-                    <StackPanel Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
-                        <ProgressBar Width="18"
-                                     Height="18"
-                                     IsIndeterminate="True"
-                                     IsVisible="{Binding IsFaceEncoderRunning}"
-                                     ShowProgressText="False"
-                                     VerticalAlignment="Center" />
-                        <TextBlock Text="Esegui Face Encoder" VerticalAlignment="Center" />
-                    </StackPanel>
-                </Button>
-                <Button Content="Stop" Command="{Binding StopFaceEncoderCommand}" />
-                <TextBlock VerticalAlignment="Center" Text="{Binding FaceStatusMessage}" />
-            </StackPanel>
+                    <TextBlock Text="Encodings e file di appoggio" FontWeight="Bold" Margin="0,4,0,0" />
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Encodings .pkl:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceMatcherEncodingsPathTextBox" Text="{Binding FaceMatcherEncodingsPath, Mode=TwoWay}" Watermark="Se vuoto usa l'ultimo .pkl in output encodings" />
+                        <Button Grid.Column="2" Click="SelectFaceMatcherEncodings_Click" Width="104" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="FileCodeOutline" Width="14" Height="14" />
+                                <TextBlock Text="Scegli..." />
+                            </StackPanel>
+                        </Button>
+                        <Button Grid.Column="3" Click="OpenFaceMatcherEncodings_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
 
-            <TextBlock Text="Output comando" FontWeight="Bold" Margin="0,6,0,0" />
-            <TextBox Name="FaceOutputTextBox"
-                     Text="{Binding FaceCommandOutput}"
-                     IsReadOnly="True"
-                     AcceptsReturn="True"
-                     TextWrapping="Wrap"
-                     FontFamily="Cascadia Mono, Consolas, monospace"
-                     Height="220"
-                     ScrollViewer.VerticalScrollBarVisibility="Auto"
-                     ScrollViewer.HorizontalScrollBarVisibility="Auto" />
-        </StackPanel>
-    </ScrollViewer>
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Risultato CSV:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceMatcherOutputPathTextBox" Text="{Binding FaceMatcherOutputPath, Mode=TwoWay}" Watermark="Opzionale: file/cartella output CSV" />
+                        <Button Grid.Column="2" Click="SelectFaceMatcherOutput_Click" Width="104" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="FileDelimitedOutline" Width="14" Height="14" />
+                                <TextBlock Text="Scegli..." />
+                            </StackPanel>
+                        </Button>
+                        <Button Grid.Column="3" Click="OpenFaceMatcherOutput_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+
+                    <Grid ColumnDefinitions="Auto,*,Auto,Auto" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Log matcher:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Name="FaceMatcherLogPathTextBox" Text="{Binding FaceMatcherLogPath, Mode=TwoWay}" Watermark="Opzionale: file/cartella log txt" />
+                        <Button Grid.Column="2" Click="SelectFaceMatcherLog_Click" Width="104" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="FileDocumentOutline" Width="14" Height="14" />
+                                <TextBlock Text="Scegli..." />
+                            </StackPanel>
+                        </Button>
+                        <Button Grid.Column="3" Click="OpenFaceMatcherLog_Click" Width="72" Margin="6,0,0,0">
+                            <StackPanel Orientation="Horizontal" HorizontalAlignment="Center" Spacing="6">
+                                <iconPacks:PackIconMaterial Kind="Folder" Width="14" Height="14" />
+                                <TextBlock Text="Apri" />
+                            </StackPanel>
+                        </Button>
+                    </Grid>
+
+                    <Grid ColumnDefinitions="Auto,100,*" ColumnSpacing="6">
+                        <TextBlock Grid.Column="0" Text="Tolleranza:" VerticalAlignment="Center" />
+                        <TextBox Grid.Column="1" Text="{Binding FaceMatcherTolerance, Mode=TwoWay}" Watermark="0.50" />
+                        <TextBlock Grid.Column="2" Text="Range utile: 0.35 - 0.75. Più bassa = match più restrittivo, più alta = più permissivo." VerticalAlignment="Center" TextWrapping="Wrap" Opacity="0.75" />
+                    </Grid>
+
+                    <StackPanel Orientation="Horizontal" Spacing="6" Margin="0,6,0,0">
+                        <Button Command="{Binding StartFaceMatcherCommand}">
+                            <StackPanel Orientation="Horizontal" Spacing="8" VerticalAlignment="Center">
+                                <ProgressBar Width="18"
+                                             Height="18"
+                                             IsIndeterminate="True"
+                                             IsVisible="{Binding IsFaceMatcherRunning}"
+                                             ShowProgressText="False"
+                                             VerticalAlignment="Center" />
+                                <TextBlock Text="Avvia Face Matcher" VerticalAlignment="Center" />
+                            </StackPanel>
+                        </Button>
+                        <Button Content="Stop" Command="{Binding StopFaceMatcherCommand}" />
+                        <TextBlock VerticalAlignment="Center" Text="{Binding FaceMatcherStatusMessage}" TextWrapping="Wrap" />
+                    </StackPanel>
+
+                    <TextBlock Text="Output comando" FontWeight="Bold" Margin="0,6,0,0" />
+                    <TextBox Name="FaceMatcherOutputTextBox"
+                             Text="{Binding FaceMatcherCommandOutput}"
+                             IsReadOnly="True"
+                             AcceptsReturn="True"
+                             TextWrapping="Wrap"
+                             FontFamily="Cascadia Mono, Consolas, monospace"
+                             Height="220"
+                             ScrollViewer.VerticalScrollBarVisibility="Auto"
+                             ScrollViewer.HorizontalScrollBarVisibility="Auto" />
+
+                    <TextBlock Text="Risultati" FontWeight="Bold" Margin="0,8,0,0" />
+                    <avaloniaDataGrid:DataGrid ItemsSource="{Binding FaceMatcherResults}"
+                                               IsReadOnly="True"
+                                               AutoGenerateColumns="False"
+                                               CanUserResizeColumns="True"
+                                               DoubleTapped="FaceMatcherResults_DoubleTapped"
+                                               MinHeight="220">
+                        <avaloniaDataGrid:DataGrid.Columns>
+                            <avaloniaDataGrid:DataGridTextColumn Header="File" Binding="{Binding PhotoId}" Width="2*" />
+                            <avaloniaDataGrid:DataGridTextColumn Header="Score" Binding="{Binding ScoreDisplay}" Width="Auto" />
+                            <avaloniaDataGrid:DataGridTextColumn Header="Trovato in destinazione" Binding="{Binding ResolvedImagePath}" Width="3*" />
+                            <avaloniaDataGrid:DataGridTemplateColumn Header="Candidati" Width="Auto">
+                                <avaloniaDataGrid:DataGridTemplateColumn.CellTemplate>
+                                    <DataTemplate>
+                                        <TextBlock Text="{Binding CandidateCount}" Margin="10,0,0,0" />
+                                    </DataTemplate>
+                                </avaloniaDataGrid:DataGridTemplateColumn.CellTemplate>
+                            </avaloniaDataGrid:DataGridTemplateColumn>
+                            <avaloniaDataGrid:DataGridTextColumn Header="Debug" Binding="{Binding DebugSummary}" Width="4*" />
+                        </avaloniaDataGrid:DataGrid.Columns>
+                    </avaloniaDataGrid:DataGrid>
+
+                    <TextBlock Text="Gallery match risolti" FontWeight="Bold" Margin="0,8,0,0" />
+                    <ItemsControl ItemsSource="{Binding FaceMatcherResults}">
+                        <ItemsControl.ItemsPanel>
+                            <ItemsPanelTemplate>
+                                <WrapPanel />
+                            </ItemsPanelTemplate>
+                        </ItemsControl.ItemsPanel>
+                        <ItemsControl.ItemTemplate>
+                            <DataTemplate>
+                                <Button Click="OpenFaceMatcherPreview_Click"
+                                        Tag="{Binding}"
+                                        Width="184"
+                                        Margin="0,0,8,8"
+                                        HorizontalContentAlignment="Stretch"
+                                        VerticalContentAlignment="Stretch">
+                                    <StackPanel Spacing="4">
+                                        <Border BorderThickness="1" BorderBrush="#808080" Padding="4">
+                                            <Image Width="168"
+                                                   Height="112"
+                                                   Stretch="UniformToFill"
+                                                   Source="{Binding ResolvedImagePath, Converter={StaticResource FilePathToBitmapConverter}}" />
+                                        </Border>
+                                        <TextBlock Text="{Binding PhotoId}" FontWeight="SemiBold" TextWrapping="Wrap" />
+                                        <TextBlock Text="{Binding ScoreDisplay}" Opacity="0.8" />
+                                        <TextBlock Text="{Binding ResolvedImagePath}" TextWrapping="Wrap" MaxHeight="36" Opacity="0.8" />
+                                    </StackPanel>
+                                </Button>
+                            </DataTemplate>
+                        </ItemsControl.ItemTemplate>
+                    </ItemsControl>
+                </StackPanel>
+            </ScrollViewer>
+        </TabItem>
+    </TabControl>
 </UserControl>

imagecatalog/AvaloniaViews/FaceAiTabView.axaml.cs

@@ -1,20 +1,32 @@
 using Avalonia.Controls;
 using Avalonia.Interactivity;
+using Avalonia.Input;
+using Avalonia.Layout;
+using Avalonia.Media;
+using Avalonia.Media.Imaging;
 using Avalonia.Platform.Storage;
 using Avalonia.Threading;
+using ImageCatalog_2.Models;
+using ImageCatalog_2.Services;
+using Microsoft.Extensions.DependencyInjection;
 using System;
+using System.Collections.Generic;
 using System.ComponentModel;
 using System.Diagnostics;
 using System.IO;
+using System.Text;
+using System.Threading.Tasks;
 
 namespace ImageCatalog_2.AvaloniaViews;
 
 public partial class FaceAiTabView : Avalonia.Controls.UserControl
 {
     private INotifyPropertyChanged? _faceAiPropertySource;
+    private readonly PickerPreferenceService _pickerPreferenceService;
 
     public FaceAiTabView()
     {
+        _pickerPreferenceService = Program.ServiceProvider.GetRequiredService<PickerPreferenceService>();
         InitializeComponent();
         DataContextChanged += OnDataContextChanged;
     }
@@ -35,12 +47,21 @@ public partial class FaceAiTabView : Avalonia.Controls.UserControl
 
     private void OnFaceAiPropertyChanged(object? sender, PropertyChangedEventArgs e)
     {
-        if (!string.Equals(e.PropertyName, nameof(DataModel.FaceCommandOutput), StringComparison.Ordinal))
+        if (string.Equals(e.PropertyName, nameof(DataModel.FaceCommandOutput), StringComparison.Ordinal))
         {
+            ScrollOutputTextBoxToEnd("FaceOutputTextBox");
             return;
         }
 
-        var outputBox = this.FindControl<Avalonia.Controls.TextBox>("FaceOutputTextBox");
+        if (string.Equals(e.PropertyName, nameof(DataModel.FaceMatcherCommandOutput), StringComparison.Ordinal))
+        {
+            ScrollOutputTextBoxToEnd("FaceMatcherOutputTextBox");
+        }
+    }
+
+    private void ScrollOutputTextBoxToEnd(string controlName)
+    {
+        var outputBox = this.FindControl<Avalonia.Controls.TextBox>(controlName);
         if (outputBox is null)
         {
             return;
@@ -55,129 +76,121 @@ public partial class FaceAiTabView : Avalonia.Controls.UserControl
 
     private async void SelectFaceExecutable_Click(object? sender, RoutedEventArgs e)
     {
-        var executableBox = this.FindControl<Avalonia.Controls.TextBox>("FaceExecutablePathTextBox");
-        if (executableBox is null)
+        var currentPath = DataContext is DataModel currentModel ? currentModel.FaceExecutablePath : null;
+        var folders = await OpenFolderPickerAsync("Seleziona la cartella Face Recognition Windows", PickerPreferenceKeys.FaceExecutableFolder, currentPath);
+        if (folders.Count > 0 && DataContext is DataModel model)
         {
-            return;
-        }
-
-        var topLevel = TopLevel.GetTopLevel(this);
-        var storageProvider = topLevel?.StorageProvider;
-        if (storageProvider is null)
-        {
-            return;
-        }
-
-        var folders = await storageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
-        {
-            Title = "Seleziona la cartella Face Recognition Windows"
-        });
-
-        if (folders.Count > 0)
-        {
-            executableBox.Text = folders[0].Path.LocalPath;
-            if (DataContext is DataModel model)
-            {
-                model.FaceExecutablePath = executableBox.Text;
-            }
+            model.FaceExecutablePath = folders[0].Path.LocalPath;
+            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceExecutableFolder, model.FaceExecutablePath);
         }
     }
 
     private async void SelectFaceOutputFolder_Click(object? sender, RoutedEventArgs e)
     {
-        var outputBox = this.FindControl<Avalonia.Controls.TextBox>("FaceOutputFolderTextBox");
-        if (outputBox is null)
+        var currentPath = DataContext is DataModel currentModel ? currentModel.FaceOutputFolderPath : null;
+        var folders = await OpenFolderPickerAsync("Seleziona la cartella output per encodings e log", PickerPreferenceKeys.FaceOutputFolder, currentPath);
+        if (folders.Count > 0 && DataContext is DataModel model)
         {
-            return;
-        }
-
-        var topLevel = TopLevel.GetTopLevel(this);
-        var storageProvider = topLevel?.StorageProvider;
-        if (storageProvider is null)
-        {
-            return;
-        }
-
-        var folders = await storageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
-        {
-            Title = "Seleziona la cartella output per encodings e log"
-        });
-
-        if (folders.Count > 0)
-        {
-            outputBox.Text = folders[0].Path.LocalPath;
-            if (DataContext is DataModel model)
-            {
-                model.FaceOutputFolderPath = outputBox.Text;
-            }
+            model.FaceOutputFolderPath = folders[0].Path.LocalPath;
+            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceOutputFolder, model.FaceOutputFolderPath);
         }
     }
 
-    private void OpenFaceExecutableFolder_Click(object? sender, RoutedEventArgs e)
+    private async void SelectFaceMatcherExecutable_Click(object? sender, RoutedEventArgs e)
     {
-        var executableBox = this.FindControl<Avalonia.Controls.TextBox>("FaceExecutablePathTextBox");
-        if (executableBox is null)
-        {
-            return;
-        }
+        var files = await OpenFilePickerAsync(
+            "Seleziona face_matcher.exe",
+            [new FilePickerFileType("Eseguibile") { Patterns = ["*.exe"] }],
+            PickerPreferenceKeys.FaceMatcherExecutable,
+            DataContext is DataModel currentModel ? currentModel.FaceMatcherExecutablePath : null);
 
-        var path = executableBox.Text?.Trim();
-        if (string.IsNullOrWhiteSpace(path))
+        if (files.Count > 0 && DataContext is DataModel model)
         {
-            return;
+            model.FaceMatcherExecutablePath = files[0].Path.LocalPath;
+            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherExecutable, model.FaceMatcherExecutablePath);
         }
-
-        if (Directory.Exists(path))
-        {
-            OpenInExplorer(path);
-            return;
-        }
-
-        if (File.Exists(path))
-        {
-            OpenInExplorer(path);
-            return;
-        }
-
-        var directory = Path.GetDirectoryName(path);
-        OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? path : directory);
     }
 
-    private void OpenFaceOutputFolder_Click(object? sender, RoutedEventArgs e)
+    private async void SelectFaceMatcherImage_Click(object? sender, RoutedEventArgs e)
     {
-        var outputBox = this.FindControl<Avalonia.Controls.TextBox>("FaceOutputFolderTextBox");
-        if (outputBox is null)
-        {
-            return;
-        }
+        var files = await OpenFilePickerAsync(
+            "Seleziona immagine per il match",
+            [new FilePickerFileType("Immagini") { Patterns = ["*.jpg", "*.jpeg", "*.png", "*.bmp", "*.gif", "*.webp"] }],
+            PickerPreferenceKeys.FaceMatcherImage,
+            DataContext is DataModel currentModel ? currentModel.FaceMatcherSelectedImagePath : null);
 
-        var outputPath = outputBox.Text?.Trim();
-        if (string.IsNullOrWhiteSpace(outputPath))
+        if (files.Count > 0 && DataContext is DataModel model)
         {
-            return;
+            model.FaceMatcherSelectedImagePath = files[0].Path.LocalPath;
+            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherImage, model.FaceMatcherSelectedImagePath);
         }
-
-        if (Directory.Exists(outputPath))
-        {
-            OpenInExplorer(outputPath);
-            return;
-        }
-
-        if (File.Exists(outputPath))
-        {
-            OpenInExplorer(outputPath);
-            return;
-        }
-
-        var directory = Path.GetDirectoryName(outputPath);
-        OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? outputPath : directory);
     }
 
+    private async void SelectFaceMatcherEncodings_Click(object? sender, RoutedEventArgs e)
+    {
+        var files = await OpenFilePickerAsync(
+            "Seleziona file encodings .pkl",
+            [new FilePickerFileType("Encodings") { Patterns = ["*.pkl"] }],
+            PickerPreferenceKeys.FaceMatcherEncodings,
+            DataContext is DataModel currentModel ? currentModel.FaceMatcherEncodingsPath : null);
+
+        if (files.Count > 0 && DataContext is DataModel model)
+        {
+            model.FaceMatcherEncodingsPath = files[0].Path.LocalPath;
+            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherEncodings, model.FaceMatcherEncodingsPath);
+        }
+    }
+
+    private async void SelectFaceMatcherOutput_Click(object? sender, RoutedEventArgs e)
+    {
+        var file = await SaveFilePickerAsync(
+            "Seleziona output CSV del matcher",
+            "csv",
+            [new FilePickerFileType("CSV") { Patterns = ["*.csv"] }],
+            PickerPreferenceKeys.FaceMatcherOutput,
+            DataContext is DataModel currentModel ? currentModel.FaceMatcherOutputPath : null);
+
+        if (file is not null && DataContext is DataModel model)
+        {
+            model.FaceMatcherOutputPath = file.Path.LocalPath;
+            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherOutput, model.FaceMatcherOutputPath);
+        }
+    }
+
+    private async void SelectFaceMatcherLog_Click(object? sender, RoutedEventArgs e)
+    {
+        var file = await SaveFilePickerAsync(
+            "Seleziona log TXT del matcher",
+            "txt",
+            [new FilePickerFileType("Log") { Patterns = ["*.txt", "*.log"] }],
+            PickerPreferenceKeys.FaceMatcherLog,
+            DataContext is DataModel currentModel ? currentModel.FaceMatcherLogPath : null);
+
+        if (file is not null && DataContext is DataModel model)
+        {
+            model.FaceMatcherLogPath = file.Path.LocalPath;
+            _pickerPreferenceService.RememberPath(PickerPreferenceKeys.FaceMatcherLog, model.FaceMatcherLogPath);
+        }
+    }
+
+    private void OpenFaceExecutableFolder_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceExecutablePathTextBox");
+
+    private void OpenFaceOutputFolder_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceOutputFolderTextBox");
+
+    private void OpenFaceMatcherExecutable_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherExecutablePathTextBox");
+
+    private void OpenFaceMatcherImage_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherImagePathTextBox");
+
+    private void OpenFaceMatcherEncodings_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherEncodingsPathTextBox");
+
+    private void OpenFaceMatcherOutput_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherOutputPathTextBox");
+
+    private void OpenFaceMatcherLog_Click(object? sender, RoutedEventArgs e) => OpenFromTextBox("FaceMatcherLogPathTextBox");
+
     private void OpenFaceDestinationFolder_Click(object? sender, RoutedEventArgs e)
     {
-        var destBox = this.FindControl<Avalonia.Controls.TextBox>("FaceDestinationPathTextBox");
-        string? path = destBox?.Text?.Trim();
-        if (string.IsNullOrWhiteSpace(path) && DataContext is DataModel model)
+        string? path = null;
+        if (DataContext is DataModel model)
         {
             path = (model.DestinationPath ?? string.Empty).Trim();
         }
@@ -197,6 +210,335 @@ public partial class FaceAiTabView : Avalonia.Controls.UserControl
         OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? path : directory);
     }
 
+    private async void OpenFaceMatcherPreview_Click(object? sender, RoutedEventArgs e)
+    {
+        if (sender is not Button { Tag: FaceMatcherResultItem item })
+        {
+            return;
+        }
+
+        await OpenFaceMatcherPreviewAsync(item);
+    }
+
+    private async Task OpenFaceMatcherPreviewAsync(FaceMatcherResultItem item)
+    {
+        var owner = TopLevel.GetTopLevel(this) as Window;
+        var dialog = BuildFaceMatcherPreviewDialog(item);
+        if (owner is not null)
+        {
+            await dialog.ShowDialog(owner);
+            return;
+        }
+
+        dialog.Show();
+    }
+
+    private async void FaceMatcherResults_DoubleTapped(object? sender, TappedEventArgs e)
+    {
+        if (sender is not Avalonia.Controls.DataGrid { SelectedItem: FaceMatcherResultItem item })
+        {
+            return;
+        }
+
+        await OpenFaceMatcherPreviewAsync(item);
+    }
+
+    private Window BuildFaceMatcherPreviewDialog(FaceMatcherResultItem item)
+    {
+        var dialog = new Window
+        {
+            Title = $"Preview match: {item.PhotoId}",
+            Width = 1180,
+            Height = 900,
+            WindowStartupLocation = WindowStartupLocation.CenterOwner
+        };
+
+        Bitmap? bitmap = null;
+        var dimensionText = "n/d";
+        if (!string.IsNullOrWhiteSpace(item.ResolvedImagePath) && File.Exists(item.ResolvedImagePath))
+        {
+            try
+            {
+                bitmap = new Bitmap(item.ResolvedImagePath);
+                dimensionText = $"{bitmap.PixelSize.Width} x {bitmap.PixelSize.Height}px";
+            }
+            catch
+            {
+                bitmap = null;
+            }
+        }
+
+        var fileInfo = !string.IsNullOrWhiteSpace(item.ResolvedImagePath) && File.Exists(item.ResolvedImagePath)
+            ? new FileInfo(item.ResolvedImagePath)
+            : null;
+
+        var debugBuilder = new StringBuilder();
+        debugBuilder.AppendLine($"File matcher: {item.PhotoId}");
+        debugBuilder.AppendLine($"Score: {item.ScoreDisplay}");
+        debugBuilder.AppendLine($"Path risolto: {item.ResolvedImagePath}");
+        debugBuilder.AppendLine($"Candidati trovati in destinazione: {item.CandidateCount}");
+        debugBuilder.AppendLine($"Dimensioni immagine: {dimensionText}");
+        if (fileInfo is not null)
+        {
+            debugBuilder.AppendLine($"Dimensione file: {fileInfo.Length / 1024.0:F1} KB");
+            debugBuilder.AppendLine($"Ultima modifica: {fileInfo.LastWriteTime:yyyy-MM-dd HH:mm:ss}");
+        }
+
+        debugBuilder.AppendLine($"Immagine ricerca: {item.SearchImagePath}");
+        debugBuilder.AppendLine($"CSV risultati: {item.CsvPath}");
+        debugBuilder.AppendLine($"Log matcher: {item.LogPath}");
+        if (!string.IsNullOrWhiteSpace(item.DebugSummary))
+        {
+            debugBuilder.AppendLine($"Dettagli riga: {item.DebugSummary}");
+        }
+
+        if (!string.IsNullOrWhiteSpace(item.RawRow))
+        {
+            debugBuilder.AppendLine($"Raw CSV: {item.RawRow}");
+        }
+
+        var layout = new Grid
+        {
+            Margin = new Avalonia.Thickness(16),
+            RowDefinitions = new RowDefinitions("Auto,*,Auto")
+        };
+
+        var header = new StackPanel { Spacing = 6 };
+        header.Children.Add(new TextBlock
+        {
+            Text = item.PhotoId,
+            FontWeight = FontWeight.Bold,
+            FontSize = 18
+        });
+        header.Children.Add(new TextBlock
+        {
+            Text = string.IsNullOrWhiteSpace(item.ScoreDisplay)
+                ? "Score: n/d"
+                : $"Score: {item.ScoreDisplay}%",
+            FontWeight = FontWeight.SemiBold,
+            Opacity = 0.9
+        });
+        header.Children.Add(new TextBlock
+        {
+            Text = string.IsNullOrWhiteSpace(item.ResolvedImagePath)
+                ? "Nessun file immagine risolto nella cartella Destinazione."
+                : item.ResolvedImagePath,
+            TextWrapping = TextWrapping.Wrap,
+            Opacity = 0.8
+        });
+        layout.Children.Add(header);
+
+        var contentGrid = new Grid
+        {
+            Margin = new Avalonia.Thickness(0, 12, 0, 12),
+            RowDefinitions = new RowDefinitions("Auto,*,Auto"),
+            RowSpacing = 12
+        };
+        Grid.SetRow(contentGrid, 1);
+
+        var zoomLevel = 1.0;
+        var zoomText = new TextBlock
+        {
+            Text = "100%",
+            VerticalAlignment = VerticalAlignment.Center,
+            MinWidth = 52,
+            TextAlignment = TextAlignment.Center
+        };
+
+        var imageControl = bitmap is null
+            ? null
+            : new Image
+            {
+                Source = bitmap,
+                Stretch = Stretch.None,
+                HorizontalAlignment = HorizontalAlignment.Left,
+                VerticalAlignment = VerticalAlignment.Top,
+                RenderTransform = new ScaleTransform(1, 1)
+            };
+
+        void UpdateZoom(double delta)
+        {
+            if (imageControl is null)
+            {
+                return;
+            }
+
+            zoomLevel = Math.Clamp(zoomLevel + delta, 0.1, 8.0);
+            imageControl.RenderTransform = new ScaleTransform(zoomLevel, zoomLevel);
+            zoomText.Text = $"{zoomLevel * 100:0}%";
+        }
+
+        var toolbar = new StackPanel
+        {
+            Orientation = Orientation.Horizontal,
+            Spacing = 8
+        };
+
+        var zoomOutButton = new Button { Content = "Zoom -", MinWidth = 80, IsEnabled = imageControl is not null };
+        zoomOutButton.Click += (_, _) => UpdateZoom(-0.1);
+        toolbar.Children.Add(zoomOutButton);
+
+        var zoomInButton = new Button { Content = "Zoom +", MinWidth = 80, IsEnabled = imageControl is not null };
+        zoomInButton.Click += (_, _) => UpdateZoom(0.1);
+        toolbar.Children.Add(zoomInButton);
+
+        var resetZoomButton = new Button { Content = "100%", MinWidth = 72, IsEnabled = imageControl is not null };
+        resetZoomButton.Click += (_, _) =>
+        {
+            if (imageControl is null)
+            {
+                return;
+            }
+
+            zoomLevel = 1.0;
+            imageControl.RenderTransform = new ScaleTransform(1, 1);
+            zoomText.Text = "100%";
+        };
+        toolbar.Children.Add(resetZoomButton);
+        toolbar.Children.Add(zoomText);
+        contentGrid.Children.Add(toolbar);
+
+        var previewBorder = new Border
+        {
+            BorderBrush = Brushes.Gray,
+            BorderThickness = new Avalonia.Thickness(1),
+            Padding = new Avalonia.Thickness(8),
+            Child = new ScrollViewer
+            {
+                HorizontalScrollBarVisibility = Avalonia.Controls.Primitives.ScrollBarVisibility.Auto,
+                VerticalScrollBarVisibility = Avalonia.Controls.Primitives.ScrollBarVisibility.Auto,
+                Content = bitmap is null
+                    ? new TextBlock
+                    {
+                        Text = "Anteprima non disponibile",
+                        HorizontalAlignment = HorizontalAlignment.Center,
+                        VerticalAlignment = VerticalAlignment.Center
+                    }
+                    : imageControl
+            }
+        };
+        Grid.SetRow(previewBorder, 1);
+        contentGrid.Children.Add(previewBorder);
+
+        var debugBox = new TextBox
+        {
+            Text = debugBuilder.ToString(),
+            IsReadOnly = true,
+            AcceptsReturn = true,
+            TextWrapping = TextWrapping.Wrap,
+            FontFamily = new FontFamily("Cascadia Mono, Consolas, monospace"),
+            MinHeight = 180
+        };
+        Grid.SetRow(debugBox, 2);
+        contentGrid.Children.Add(debugBox);
+
+        layout.Children.Add(contentGrid);
+
+        var footer = new StackPanel
+        {
+            Orientation = Orientation.Horizontal,
+            HorizontalAlignment = HorizontalAlignment.Right,
+            Spacing = 8
+        };
+        Grid.SetRow(footer, 2);
+
+        var openFileButton = new Button { Content = "Apri file" };
+        openFileButton.Click += (_, _) => OpenInExplorer(item.ResolvedImagePath);
+        footer.Children.Add(openFileButton);
+
+        var openFolderButton = new Button { Content = "Apri cartella" };
+        openFolderButton.Click += (_, _) =>
+        {
+            var directory = Path.GetDirectoryName(item.ResolvedImagePath);
+            OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? item.ResolvedImagePath : directory);
+        };
+        footer.Children.Add(openFolderButton);
+
+        var closeButton = new Button { Content = "Chiudi", MinWidth = 88 };
+        closeButton.Click += (_, _) => dialog.Close();
+        footer.Children.Add(closeButton);
+
+        layout.Children.Add(footer);
+        dialog.Content = layout;
+        return dialog;
+    }
+
+    private void OpenFromTextBox(string textBoxName)
+    {
+        var textBox = this.FindControl<Avalonia.Controls.TextBox>(textBoxName);
+        var path = textBox?.Text?.Trim();
+        if (string.IsNullOrWhiteSpace(path))
+        {
+            return;
+        }
+
+        if (Directory.Exists(path) || File.Exists(path))
+        {
+            OpenInExplorer(path);
+            return;
+        }
+
+        var directory = Path.GetDirectoryName(path);
+        OpenInExplorer(string.IsNullOrWhiteSpace(directory) ? path : directory);
+    }
+
+    private async Task<IReadOnlyList<IStorageFolder>> OpenFolderPickerAsync(string title, string preferenceKey, string? currentPath)
+    {
+        var topLevel = TopLevel.GetTopLevel(this);
+        var storageProvider = topLevel?.StorageProvider;
+        if (storageProvider is null)
+        {
+            return Array.Empty<IStorageFolder>();
+        }
+
+        var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(storageProvider, preferenceKey, currentPath);
+
+        return await storageProvider.OpenFolderPickerAsync(new FolderPickerOpenOptions
+        {
+            Title = title,
+            SuggestedStartLocation = suggestedStartLocation
+        });
+    }
+
+    private async Task<IReadOnlyList<IStorageFile>> OpenFilePickerAsync(string title, IReadOnlyList<FilePickerFileType> fileTypes, string preferenceKey, string? currentPath)
+    {
+        var topLevel = TopLevel.GetTopLevel(this);
+        var storageProvider = topLevel?.StorageProvider;
+        if (storageProvider is null)
+        {
+            return Array.Empty<IStorageFile>();
+        }
+
+        var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(storageProvider, preferenceKey, currentPath);
+
+        return await storageProvider.OpenFilePickerAsync(new FilePickerOpenOptions
+        {
+            Title = title,
+            FileTypeFilter = fileTypes,
+            SuggestedStartLocation = suggestedStartLocation
+        });
+    }
+
+    private async Task<IStorageFile?> SaveFilePickerAsync(string title, string defaultExtension, IReadOnlyList<FilePickerFileType> fileTypes, string preferenceKey, string? currentPath)
+    {
+        var topLevel = TopLevel.GetTopLevel(this);
+        var storageProvider = topLevel?.StorageProvider;
+        if (storageProvider is null)
+        {
+            return null;
+        }
+
+        var suggestedStartLocation = await _pickerPreferenceService.TryGetStartFolderAsync(storageProvider, preferenceKey, currentPath);
+
+        return await storageProvider.SaveFilePickerAsync(new FilePickerSaveOptions
+        {
+            Title = title,
+            DefaultExtension = defaultExtension,
+            FileTypeChoices = fileTypes,
+            SuggestedStartLocation = suggestedStartLocation
+        });
+    }
+
     private static void OpenInExplorer(string? path)
     {
         if (string.IsNullOrWhiteSpace(path))

imagecatalog/Converters/FilePathToBitmapConverter.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Globalization;
+using Avalonia.Data.Converters;
+using Avalonia.Media.Imaging;
+
+namespace ImageCatalog_2.Converters;
+
+public sealed class FilePathToBitmapConverter : IValueConverter
+{
+    public object? Convert(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        if (value is not string path || string.IsNullOrWhiteSpace(path))
+        {
+            return null;
+        }
+
+        try
+        {
+            return new Bitmap(path);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    public object? ConvertBack(object? value, Type targetType, object? parameter, CultureInfo culture)
+    {
+        throw new NotSupportedException();
+    }
+}

imagecatalog/Models/FaceMatcherResultItem.cs

@@ -0,0 +1,24 @@
+namespace ImageCatalog_2.Models;
+
+public sealed class FaceMatcherResultItem
+{
+    public string PhotoId { get; init; } = string.Empty;
+
+    public double? Score { get; init; }
+
+    public string ScoreDisplay => Score.HasValue ? Score.Value.ToString("0.###") : string.Empty;
+
+    public string ResolvedImagePath { get; init; } = string.Empty;
+
+    public int CandidateCount { get; init; }
+
+    public string RawRow { get; init; } = string.Empty;
+
+    public string DebugSummary { get; init; } = string.Empty;
+
+    public string SearchImagePath { get; init; } = string.Empty;
+
+    public string CsvPath { get; init; } = string.Empty;
+
+    public string LogPath { get; init; } = string.Empty;
+}

imagecatalog/Models/SettingsDto.cs

@@ -314,6 +314,14 @@ namespace ImageCatalog_2.Models
         [XmlElement("AI_FaceUpsample")]
         public bool FaceUpsample { get; set; } = true;
 
+        [JsonPropertyName("FaceMatcherExecutablePath")]
+        [XmlElement("AI_FaceMatcherExecutablePath")]
+        public string FaceMatcherExecutablePath { get; set; } = string.Empty;
+
+        [JsonPropertyName("FaceMatcherTolerance")]
+        [XmlElement("AI_FaceMatcherTolerance")]
+        public double FaceMatcherTolerance { get; set; } = 0.5;
+
         // Race upload settings
         [JsonPropertyName("ApiLogin")]
         [XmlElement("RaceUpload_Login")]

imagecatalog/Program.cs

@@ -154,6 +154,7 @@ static class Program
         var userPrefsPath = System.IO.Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
             "ImageCatalog", "userprefs.xml");
         services.AddSingleton(new ParametriSetup(userPrefsPath));
+        services.AddSingleton<PickerPreferenceService>();
         services.AddSingleton<PicSettings>();
 
         services.AddCatalogCommunication(options =>

imagecatalog/Services/PickerPreferenceService.cs

@@ -0,0 +1,93 @@
+using Avalonia.Platform.Storage;
+using ImageCatalog;
+using System;
+using System.IO;
+using System.Threading.Tasks;
+
+namespace ImageCatalog_2.Services;
+
+public static class PickerPreferenceKeys
+{
+    public const string SourceFolder = "Picker.SourceFolder.LastPath";
+    public const string DestinationFolder = "Picker.DestinationFolder.LastPath";
+    public const string LogoFile = "Picker.LogoFile.LastPath";
+    public const string ModelsFolder = "Picker.ModelsFolder.LastPath";
+    public const string CsvOutput = "Picker.CsvOutput.LastPath";
+    public const string FaceExecutableFolder = "Picker.FaceExecutableFolder.LastPath";
+    public const string FaceOutputFolder = "Picker.FaceOutputFolder.LastPath";
+    public const string FaceMatcherExecutable = "Picker.FaceMatcherExecutable.LastPath";
+    public const string FaceMatcherImage = "Picker.FaceMatcherImage.LastPath";
+    public const string FaceMatcherEncodings = "Picker.FaceMatcherEncodings.LastPath";
+    public const string FaceMatcherOutput = "Picker.FaceMatcherOutput.LastPath";
+    public const string FaceMatcherLog = "Picker.FaceMatcherLog.LastPath";
+}
+
+public sealed class PickerPreferenceService
+{
+    private readonly ParametriSetup _userPreferences;
+
+    public PickerPreferenceService(ParametriSetup userPreferences)
+    {
+        _userPreferences = userPreferences;
+    }
+
+    public async Task<IStorageFolder?> TryGetStartFolderAsync(IStorageProvider storageProvider, string preferenceKey, string? currentPath = null)
+    {
+        var startPath = GetPreferredStartDirectory(preferenceKey, currentPath);
+        if (string.IsNullOrWhiteSpace(startPath))
+        {
+            return null;
+        }
+
+        try
+        {
+            return await storageProvider.TryGetFolderFromPathAsync(new Uri(startPath)).ConfigureAwait(true);
+        }
+        catch
+        {
+            return null;
+        }
+    }
+
+    public void RememberPath(string preferenceKey, string? selectedPath)
+    {
+        var directory = TryGetExistingDirectory(selectedPath);
+        if (string.IsNullOrWhiteSpace(directory))
+        {
+            return;
+        }
+
+        _userPreferences.AggiornaParametro(preferenceKey, directory);
+        _userPreferences.SalvaParametriSetup();
+    }
+
+    private string? GetPreferredStartDirectory(string preferenceKey, string? currentPath)
+    {
+        var storedPath = _userPreferences.LeggiParametroString(preferenceKey);
+        return TryGetExistingDirectory(storedPath) ?? TryGetExistingDirectory(currentPath);
+    }
+
+    private static string? TryGetExistingDirectory(string? path)
+    {
+        if (string.IsNullOrWhiteSpace(path))
+        {
+            return null;
+        }
+
+        var normalizedPath = path.Trim().Trim('"');
+        if (Directory.Exists(normalizedPath))
+        {
+            return normalizedPath;
+        }
+
+        if (File.Exists(normalizedPath))
+        {
+            return Path.GetDirectoryName(normalizedPath);
+        }
+
+        var containingDirectory = Path.GetDirectoryName(normalizedPath);
+        return !string.IsNullOrWhiteSpace(containingDirectory) && Directory.Exists(containingDirectory)
+            ? containingDirectory
+            : null;
+    }
+}

imagecatalog/ViewModels/AiSettingsViewModel.cs

@@ -225,6 +225,105 @@ public class AiSettingsViewModel : ViewModelBase
         }
     }
 
+    private string _faceMatcherExecutablePath = string.Empty;
+    public string FaceMatcherExecutablePath
+    {
+        get => _faceMatcherExecutablePath;
+        set
+        {
+            _faceMatcherExecutablePath = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private string _faceMatcherEncodingsPath = string.Empty;
+    public string FaceMatcherEncodingsPath
+    {
+        get => _faceMatcherEncodingsPath;
+        set
+        {
+            _faceMatcherEncodingsPath = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private string _faceMatcherOutputPath = string.Empty;
+    public string FaceMatcherOutputPath
+    {
+        get => _faceMatcherOutputPath;
+        set
+        {
+            _faceMatcherOutputPath = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private string _faceMatcherLogPath = string.Empty;
+    public string FaceMatcherLogPath
+    {
+        get => _faceMatcherLogPath;
+        set
+        {
+            _faceMatcherLogPath = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private double _faceMatcherTolerance = 0.5;
+    public double FaceMatcherTolerance
+    {
+        get => _faceMatcherTolerance;
+        set
+        {
+            _faceMatcherTolerance = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private string _faceMatcherSelectedImagePath = string.Empty;
+    public string FaceMatcherSelectedImagePath
+    {
+        get => _faceMatcherSelectedImagePath;
+        set
+        {
+            _faceMatcherSelectedImagePath = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private bool _isFaceMatcherRunning;
+    public bool IsFaceMatcherRunning
+    {
+        get => _isFaceMatcherRunning;
+        set
+        {
+            _isFaceMatcherRunning = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private string _faceMatcherStatusMessage = string.Empty;
+    public string FaceMatcherStatusMessage
+    {
+        get => _faceMatcherStatusMessage;
+        set
+        {
+            _faceMatcherStatusMessage = value;
+            NotifyPropertyChanged();
+        }
+    }
+
+    private string _faceMatcherCommandOutput = string.Empty;
+    public string FaceMatcherCommandOutput
+    {
+        get => _faceMatcherCommandOutput;
+        set
+        {
+            _faceMatcherCommandOutput = value;
+            NotifyPropertyChanged();
+        }
+    }
+
     private double _aiProgress;
     public double AiProgress
     {
@@ -237,4 +336,6 @@ public class AiSettingsViewModel : ViewModelBase
     }
 
     public ObservableCollection<AiResultItem> PreviewResults { get; } = new();
+
+    public ObservableCollection<FaceMatcherResultItem> FaceMatcherResults { get; } = new();
 }