Add eBay credentials, edit listings feature, fix category service token

EbayListingTool/Services/EbayCategoryService.cs

@@ -14,6 +14,9 @@ public class EbayCategoryService
 {
     private readonly EbayAuthService _auth;
 
+    // Static client — avoids socket exhaustion from per-call `new HttpClient()`
+    private static readonly HttpClient _http = new();
+
     public EbayCategoryService(EbayAuthService auth)
     {
         _auth = auth;
@@ -26,15 +29,18 @@ public class EbayCategoryService
 
         try
         {
-            var token = await _auth.GetValidAccessTokenAsync();
-            using var http = new HttpClient();
-            http.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
-            http.DefaultRequestHeaders.Add("X-EBAY-C-MARKETPLACE-ID", "EBAY_GB");
+            // Taxonomy API supports app-level tokens — no user login required
+            var token = await _auth.GetAppTokenAsync();
+            using var request = new HttpRequestMessage(HttpMethod.Get,
+                $"{_auth.BaseUrl}/commerce/taxonomy/v1/category_tree/3/get_category_suggestions" +
+                $"?q={Uri.EscapeDataString(query)}");
+            request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
+            request.Headers.Add("X-EBAY-C-MARKETPLACE-ID", "EBAY_GB");
 
-            var url = $"{_auth.BaseUrl}/commerce/taxonomy/v1/category_tree/3/get_category_suggestions" +
-                      $"?q={Uri.EscapeDataString(query)}";
+            var response = await _http.SendAsync(request);
+            var json     = await response.Content.ReadAsStringAsync();
 
-            var json = await http.GetStringAsync(url);
+            if (!response.IsSuccessStatusCode) return new List<CategorySuggestion>();
             var obj = JObject.Parse(json);
 
             var results = new List<CategorySuggestion>();

EbayListingTool/Services/SavedListingsService.cs

@@ -91,6 +91,56 @@ public class SavedListingsService
         catch { /* ignore — user may have already deleted it */ }
     }
 
+    /// <summary>
+    /// Updates an existing listing's metadata and regenerates its text export file.
+    /// The listing must be the same object reference held in Listings.
+    /// </summary>
+    public void Update(SavedListing listing)
+    {
+        if (Directory.Exists(listing.ExportFolder))
+        {
+            // Replace the text export — remove old .txt files first
+            foreach (var old in Directory.GetFiles(listing.ExportFolder, "*.txt"))
+            {
+                try { File.Delete(old); } catch { }
+            }
+            var safeName = MakeSafeFilename(listing.Title);
+            var textFile = Path.Combine(listing.ExportFolder, $"{safeName}.txt");
+            File.WriteAllText(textFile, BuildTextExport(
+                listing.Title, listing.Description, listing.Price,
+                listing.Category, listing.ConditionNotes));
+        }
+        Persist(); // E1: propagates on failure so caller can show error
+    }
+
+    /// <summary>
+    /// Copies a source photo into the listing's export folder and returns the destination path.
+    /// currentCount is the number of photos already in the edit session (used for naming).
+    /// </summary>
+    public string CopyPhotoToExportFolder(SavedListing listing, string sourcePath, int currentCount)
+    {
+        if (!Directory.Exists(listing.ExportFolder))
+            throw new DirectoryNotFoundException($"Export folder not found: {listing.ExportFolder}");
+
+        var safeName = MakeSafeFilename(listing.Title);
+        var ext      = Path.GetExtension(sourcePath);
+
+        var dest = currentCount == 0
+            ? Path.Combine(listing.ExportFolder, $"{safeName}{ext}")
+            : Path.Combine(listing.ExportFolder, $"{safeName}_{currentCount + 1}{ext}");
+
+        // Ensure unique filename if a file with that name already exists
+        int attempt = 2;
+        while (File.Exists(dest))
+        {
+            dest = Path.Combine(listing.ExportFolder, $"{safeName}_{currentCount + attempt}{ext}");
+            attempt++;
+        }
+
+        File.Copy(sourcePath, dest);
+        return dest;
+    }
+
     // S3: use ProcessStartInfo with FileName so spaces/special chars are handled correctly
     public void OpenExportFolder(SavedListing listing)
     {

EbayListingTool/Views/SavedListingsView.xaml

@@ -262,6 +262,15 @@
 
                     <!-- Action buttons -->
                     <WrapPanel Orientation="Horizontal">
+                        <Button Click="EditListing_Click"
+                                Style="{DynamicResource MahApps.Styles.Button.Square.Accent}"
+                                Height="34" Padding="14,0" Margin="0,0,8,6">
+                            <StackPanel Orientation="Horizontal">
+                                <iconPacks:PackIconMaterial Kind="Pencil" Width="13" Height="13"
+                                                            Margin="0,0,6,0" VerticalAlignment="Center"/>
+                                <TextBlock Text="Edit" VerticalAlignment="Center"/>
+                            </StackPanel>
+                        </Button>
                         <Button Click="OpenFolderDetail_Click"
                                 Style="{DynamicResource MahApps.Styles.Button.Square.Accent}"
                                 Height="34" Padding="14,0" Margin="0,0,8,6">
@@ -311,6 +320,69 @@
                 </StackPanel>
             </ScrollViewer>
 
+        <!-- Edit panel — shown in place of DetailPanel when editing -->
+        <ScrollViewer x:Name="EditPanel" Visibility="Collapsed"
+                      VerticalScrollBarVisibility="Auto" Padding="18,14">
+            <StackPanel>
+
+                <!-- Title -->
+                <TextBlock Text="TITLE" Style="{StaticResource DetailLabel}" Margin="0,0,0,3"/>
+                <TextBox x:Name="EditTitle" FontSize="13" Margin="0,0,0,4"
+                         mah:TextBoxHelper.Watermark="Listing title"/>
+
+                <!-- Price + Category -->
+                <Grid Margin="0,0,0,4">
+                    <Grid.ColumnDefinitions>
+                        <ColumnDefinition Width="*"/>
+                        <ColumnDefinition Width="10"/>
+                        <ColumnDefinition Width="*"/>
+                    </Grid.ColumnDefinitions>
+                    <StackPanel Grid.Column="0">
+                        <TextBlock Text="PRICE (£)" Style="{StaticResource DetailLabel}" Margin="0,0,0,3"/>
+                        <mah:NumericUpDown x:Name="EditPrice" Minimum="0" Maximum="99999"
+                                           StringFormat="F2" Interval="0.5" Value="0"/>
+                    </StackPanel>
+                    <StackPanel Grid.Column="2">
+                        <TextBlock Text="CATEGORY" Style="{StaticResource DetailLabel}" Margin="0,0,0,3"/>
+                        <TextBox x:Name="EditCategory" FontSize="12"
+                                 mah:TextBoxHelper.Watermark="e.g. Clothing, Shoes &amp; Accessories"/>
+                    </StackPanel>
+                </Grid>
+
+                <!-- Condition notes -->
+                <TextBlock Text="CONDITION NOTES" Style="{StaticResource DetailLabel}" Margin="0,0,0,3"/>
+                <TextBox x:Name="EditCondition" FontSize="12" Margin="0,0,0,4"
+                         mah:TextBoxHelper.Watermark="Optional — e.g. minor scuff on base"/>
+
+                <!-- Description -->
+                <TextBlock Text="DESCRIPTION" Style="{StaticResource DetailLabel}" Margin="0,0,0,3"/>
+                <TextBox x:Name="EditDescription" FontSize="12" Margin="0,0,0,4"
+                         TextWrapping="Wrap" AcceptsReturn="True"
+                         Height="130" VerticalScrollBarVisibility="Auto"/>
+
+                <!-- Photos -->
+                <TextBlock Text="PHOTOS" Style="{StaticResource DetailLabel}" Margin="0,0,0,3"/>
+                <ScrollViewer HorizontalScrollBarVisibility="Auto"
+                              VerticalScrollBarVisibility="Disabled"
+                              Margin="0,0,0,10">
+                    <StackPanel x:Name="EditPhotosPanel" Orientation="Horizontal"/>
+                </ScrollViewer>
+
+                <!-- Save / Cancel -->
+                <StackPanel Orientation="Horizontal" Margin="0,2,0,0">
+                    <Button x:Name="SaveEditBtn" Click="SaveEdit_Click"
+                            Style="{DynamicResource MahApps.Styles.Button.Square.Accent}"
+                            Height="34" Padding="16,0" Margin="0,0,8,0"
+                            Content="Save Changes"/>
+                    <Button x:Name="CancelEditBtn" Click="CancelEdit_Click"
+                            Style="{DynamicResource MahApps.Styles.Button.Square}"
+                            Height="34" Padding="14,0"
+                            Content="Cancel"/>
+                </StackPanel>
+
+            </StackPanel>
+        </ScrollViewer>
+
         </Grid>
     </Grid>
 </UserControl>

EbayListingTool/Views/SavedListingsView.xaml.cs

@@ -6,6 +6,7 @@ using System.Windows.Media.Animation;
 using System.Windows.Media.Imaging;
 using EbayListingTool.Models;
 using EbayListingTool.Services;
+using Microsoft.Win32;
 
 namespace EbayListingTool.Views;
 
@@ -14,6 +15,10 @@ public partial class SavedListingsView : UserControl
     private SavedListingsService? _service;
     private SavedListing?         _selected;
 
+    // Edit mode working state
+    private List<string> _editPhotoPaths = new();
+    private List<string> _pendingDeletes  = new();
+
     // Normal card background — resolved once after load so we can restore it on mouse-leave
     private Brush? _cardNormalBg;
     private Brush? _cardHoverBg;
@@ -327,6 +332,297 @@ public partial class SavedListingsView : UserControl
         catch { }
     }
 
+    // ---- Edit mode ----
+
+    private void EditListing_Click(object sender, RoutedEventArgs e)
+    {
+        if (_selected == null) return;
+        EnterEditMode(_selected);
+    }
+
+    private void EnterEditMode(SavedListing listing)
+    {
+        EditTitle.Text       = listing.Title;
+        EditPrice.Value      = (double)listing.Price;
+        EditCategory.Text    = listing.Category;
+        EditCondition.Text   = listing.ConditionNotes;
+        EditDescription.Text = listing.Description;
+
+        _editPhotoPaths = new List<string>(listing.PhotoPaths);
+        _pendingDeletes  = new List<string>();
+
+        BuildEditPhotoStrip();
+
+        DetailPanel.Visibility = Visibility.Collapsed;
+        EditPanel.Visibility   = Visibility.Visible;
+    }
+
+    private void ExitEditMode()
+    {
+        EditPanel.Visibility   = Visibility.Collapsed;
+        DetailPanel.Visibility = Visibility.Visible;
+    }
+
+    private void BuildEditPhotoStrip()
+    {
+        EditPhotosPanel.Children.Clear();
+
+        for (int i = 0; i < _editPhotoPaths.Count; i++)
+        {
+            var path  = _editPhotoPaths[i];
+            var index = i; // capture for lambdas
+
+            var container = new Grid { Width = 120, Height = 120, Margin = new Thickness(0, 0, 8, 0) };
+
+            // Photo image
+            var imgBorder = new Border
+            {
+                Width = 120, Height = 120,
+                CornerRadius = new CornerRadius(6),
+                ClipToBounds = true,
+                Background = (Brush)FindResource("MahApps.Brushes.Gray8")
+            };
+
+            if (File.Exists(path))
+            {
+                try
+                {
+                    var bmp = new BitmapImage();
+                    bmp.BeginInit();
+                    bmp.UriSource        = new Uri(path, UriKind.Absolute);
+                    bmp.DecodePixelWidth = 240;
+                    bmp.CacheOption      = BitmapCacheOption.OnLoad;
+                    bmp.EndInit();
+                    bmp.Freeze();
+                    imgBorder.Child = new Image { Source = bmp, Stretch = Stretch.UniformToFill };
+                }
+                catch { AddPhotoIcon(imgBorder); }
+            }
+            else
+            {
+                AddPhotoIcon(imgBorder);
+            }
+
+            container.Children.Add(imgBorder);
+
+            // "Cover" badge on the first photo
+            if (i == 0)
+            {
+                var badge = new Border
+                {
+                    CornerRadius        = new CornerRadius(3),
+                    Background          = (Brush)FindResource("MahApps.Brushes.Accent"),
+                    Padding             = new Thickness(4, 1, 4, 1),
+                    HorizontalAlignment = HorizontalAlignment.Left,
+                    VerticalAlignment   = VerticalAlignment.Top,
+                    Margin              = new Thickness(4, 4, 0, 0)
+                };
+                badge.Child = new TextBlock { Text = "Cover", FontSize = 9, Foreground = Brushes.White };
+                container.Children.Add(badge);
+            }
+
+            // Remove (×) button — top-right corner
+            var removeBtn = new Button
+            {
+                Content             = "×",
+                Width               = 22, Height = 22,
+                FontSize            = 13,
+                Padding             = new Thickness(0),
+                HorizontalAlignment = HorizontalAlignment.Right,
+                VerticalAlignment   = VerticalAlignment.Top,
+                Margin              = new Thickness(0, 2, 2, 0),
+                Style               = (Style)FindResource("MahApps.Styles.Button.Square"),
+                Foreground          = Brushes.White,
+                Background          = new SolidColorBrush(Color.FromArgb(200, 40, 40, 40)),
+                ToolTip             = "Remove photo"
+            };
+            removeBtn.Click += (s, e) =>
+            {
+                _pendingDeletes.Add(_editPhotoPaths[index]);
+                _editPhotoPaths.RemoveAt(index);
+                BuildEditPhotoStrip();
+            };
+            container.Children.Add(removeBtn);
+
+            // Left/right reorder buttons — bottom-centre
+            var reorderPanel = new StackPanel
+            {
+                Orientation         = Orientation.Horizontal,
+                HorizontalAlignment = HorizontalAlignment.Center,
+                VerticalAlignment   = VerticalAlignment.Bottom,
+                Margin              = new Thickness(0, 0, 0, 4)
+            };
+
+            if (i > 0)
+            {
+                var leftBtn = new Button
+                {
+                    Content    = "◀",
+                    Width      = 26, Height = 20,
+                    FontSize   = 9,
+                    Padding    = new Thickness(0),
+                    Margin     = new Thickness(0, 0, 2, 0),
+                    Style      = (Style)FindResource("MahApps.Styles.Button.Square"),
+                    Foreground = Brushes.White,
+                    Background = new SolidColorBrush(Color.FromArgb(180, 40, 40, 40)),
+                    ToolTip    = "Move left"
+                };
+                leftBtn.Click += (s, e) =>
+                {
+                    (_editPhotoPaths[index], _editPhotoPaths[index - 1]) =
+                        (_editPhotoPaths[index - 1], _editPhotoPaths[index]);
+                    BuildEditPhotoStrip();
+                };
+                reorderPanel.Children.Add(leftBtn);
+            }
+
+            if (i < _editPhotoPaths.Count - 1)
+            {
+                var rightBtn = new Button
+                {
+                    Content    = "▶",
+                    Width      = 26, Height = 20,
+                    FontSize   = 9,
+                    Padding    = new Thickness(0),
+                    Style      = (Style)FindResource("MahApps.Styles.Button.Square"),
+                    Foreground = Brushes.White,
+                    Background = new SolidColorBrush(Color.FromArgb(180, 40, 40, 40)),
+                    ToolTip    = "Move right"
+                };
+                rightBtn.Click += (s, e) =>
+                {
+                    (_editPhotoPaths[index], _editPhotoPaths[index + 1]) =
+                        (_editPhotoPaths[index + 1], _editPhotoPaths[index]);
+                    BuildEditPhotoStrip();
+                };
+                reorderPanel.Children.Add(rightBtn);
+            }
+
+            if (reorderPanel.Children.Count > 0)
+                container.Children.Add(reorderPanel);
+
+            EditPhotosPanel.Children.Add(container);
+        }
+
+        // "Add photos" button at the end of the strip
+        var addBtn = new Button
+        {
+            Width   = 60, Height = 120,
+            Style   = (Style)FindResource("MahApps.Styles.Button.Square"),
+            ToolTip = "Add photos"
+        };
+        var addContent = new StackPanel { VerticalAlignment = VerticalAlignment.Center };
+        addContent.Children.Add(new MahApps.Metro.IconPacks.PackIconMaterial
+        {
+            Kind                = MahApps.Metro.IconPacks.PackIconMaterialKind.Plus,
+            Width               = 20, Height = 20,
+            HorizontalAlignment = HorizontalAlignment.Center,
+            Foreground          = (Brush)FindResource("MahApps.Brushes.Accent")
+        });
+        addContent.Children.Add(new TextBlock
+        {
+            Text                = "Add",
+            FontSize            = 11,
+            HorizontalAlignment = HorizontalAlignment.Center,
+            Foreground          = (Brush)FindResource("MahApps.Brushes.Accent"),
+            Margin              = new Thickness(0, 4, 0, 0)
+        });
+        addBtn.Content = addContent;
+        addBtn.Click   += AddEditPhoto_Click;
+        EditPhotosPanel.Children.Add(addBtn);
+    }
+
+    private void AddEditPhoto_Click(object sender, RoutedEventArgs e)
+    {
+        if (_selected == null || _service == null) return;
+
+        var dlg = new OpenFileDialog
+        {
+            Multiselect = true,
+            Filter      = "Image files|*.jpg;*.jpeg;*.png;*.gif;*.bmp|All files|*.*",
+            Title       = "Add Photos"
+        };
+
+        if (dlg.ShowDialog() != true) return;
+
+        foreach (var src in dlg.FileNames)
+        {
+            try
+            {
+                var dest = _service.CopyPhotoToExportFolder(_selected, src, _editPhotoPaths.Count);
+                _editPhotoPaths.Add(dest);
+            }
+            catch (Exception ex)
+            {
+                MessageBox.Show($"Could not add \"{Path.GetFileName(src)}\": {ex.Message}",
+                                "Add Photo", MessageBoxButton.OK, MessageBoxImage.Warning);
+            }
+        }
+
+        BuildEditPhotoStrip();
+    }
+
+    private void SaveEdit_Click(object sender, RoutedEventArgs e)
+    {
+        if (_selected == null || _service == null) return;
+
+        var title = EditTitle.Text.Trim();
+        if (string.IsNullOrWhiteSpace(title))
+        {
+            MessageBox.Show("Title cannot be empty.", "Save", MessageBoxButton.OK, MessageBoxImage.Warning);
+            EditTitle.Focus();
+            return;
+        }
+
+        _selected.Title          = title;
+        _selected.Price          = (decimal)(EditPrice.Value ?? 0);
+        _selected.Category       = EditCategory.Text.Trim();
+        _selected.ConditionNotes = EditCondition.Text.Trim();
+        _selected.Description    = EditDescription.Text.Trim();
+        _selected.PhotoPaths     = new List<string>(_editPhotoPaths);
+
+        try
+        {
+            _service.Update(_selected);
+        }
+        catch (Exception ex)
+        {
+            MessageBox.Show($"Failed to save changes:\n{ex.Message}", "Save Error",
+                            MessageBoxButton.OK, MessageBoxImage.Error);
+            return;
+        }
+
+        // Delete removed photos from disk now that the save succeeded
+        foreach (var path in _pendingDeletes)
+        {
+            try { if (File.Exists(path)) File.Delete(path); }
+            catch { /* ignore — file may already be gone */ }
+        }
+        _pendingDeletes.Clear();
+
+        ExitEditMode();
+        ShowDetail(_selected, animate: false);
+        RefreshList();
+    }
+
+    private void CancelEdit_Click(object sender, RoutedEventArgs e)
+    {
+        if (_selected != null)
+        {
+            // Delete any photos that were added to disk during this edit session but not saved
+            var originalPaths = new HashSet<string>(_selected.PhotoPaths);
+            foreach (var path in _editPhotoPaths.Where(p => !originalPaths.Contains(p)))
+            {
+                try { if (File.Exists(path)) File.Delete(path); }
+                catch { }
+            }
+        }
+
+        _editPhotoPaths.Clear();
+        _pendingDeletes.Clear();
+        ExitEditMode();
+    }
+
     // ---- Button handlers ----
 
     private void OpenExportsDir_Click(object sender, RoutedEventArgs e)

EbayListingTool/appsettings.json

@@ -1,8 +1,8 @@
 {
   "Ebay": {
-    "ClientId": "YOUR_EBAY_CLIENT_ID",
-    "ClientSecret": "YOUR_EBAY_CLIENT_SECRET",
-    "RuName": "YOUR_EBAY_RUNAME",
+    "ClientId": "PeterFos-Lister-SBX-f6c15d8b1-1e21a7cf",
+    "ClientSecret": "SBX-6c15d8b15850-bd12-45b9-a4d9-d5d7",
+    "RuName": "Peter_Foster-PeterFos-Lister-eutksmb",
     "Sandbox": true,
     "RedirectPort": 8080,
     "DefaultPostcode": "NR1 1AA"