admin page presentation

src/PostIt/PostIt.Tests/HomePageProviderFlowTests.cs

@@ -68,6 +68,19 @@ public class HomePageProviderFlowTests
         Assert.Equal("alice", vm.FilteredUsers[0].UserName);
     }
 
+    [Fact]
+    public void Administration_page_tracks_selected_user()
+    {
+        var vm = new AdministrationPageViewModel();
+        var user = new Yavsc.Abstract.Identity.UserInfo { UserId = "1", UserName = "alice", FullName = "Alice Example", Email = "alice@example.com", DedicatedGoogleCalendar = "calendar-123" };
+
+        vm.Users.Add(user);
+        vm.SelectedUser = user;
+
+        Assert.Same(user, vm.SelectedUser);
+        Assert.Equal("alice", vm.SelectedUser?.UserName);
+    }
+
     [Fact]
     public void UserProfilePage_exposes_full_name_and_address_fields()
     {

src/PostIt/PostIt/ViewModels/AdministrationPageViewModel.cs

@@ -27,6 +27,9 @@ public partial class AdministrationPageViewModel : ViewModelBase
     [ObservableProperty]
     public partial string StatusMessage { get; set; } = "Chargement…";
 
+    [ObservableProperty]
+    public partial UserInfo? SelectedUser { get; set; }
+
     public IReadOnlyList<UserInfo> FilteredUsers =>
         string.IsNullOrWhiteSpace(SearchText)
             ? Users.ToList()

src/PostIt/PostIt/Views/Layout/AdministrationPage.axaml

@@ -24,8 +24,9 @@
                  TextWrapping="Wrap"/>
     </StackPanel>
 
-    <ListBox Grid.Row="3"
-             ItemsSource="{Binding FilteredUsers}">
+    <Grid Grid.Row="3" ColumnDefinitions="1.3*,0.7*" ColumnSpacing="12">
+      <ListBox ItemsSource="{Binding FilteredUsers}"
+               SelectedItem="{Binding SelectedUser, Mode=TwoWay}">
         <ListBox.ItemTemplate>
           <DataTemplate>
             <Border Padding="8" BorderBrush="#D0D7DE" BorderThickness="1" CornerRadius="6">
@@ -40,5 +41,19 @@
           </DataTemplate>
         </ListBox.ItemTemplate>
       </ListBox>
+
+      <Border Grid.Column="1" Padding="12" BorderBrush="#D0D7DE" BorderThickness="1" CornerRadius="6" Background="#F6F8FA">
+        <StackPanel Spacing="8">
+          <TextBlock Text="Détails" FontWeight="SemiBold" FontSize="18"/>
+          <TextBlock Text="{Binding SelectedUser.UserName, StringFormat='Nom d’utilisateur : {0}'}" TextWrapping="Wrap"/>
+          <TextBlock Text="{Binding SelectedUser.FullName, StringFormat='Nom complet : {0}'}" TextWrapping="Wrap"/>
+          <TextBlock Text="{Binding SelectedUser.Email, StringFormat='Email : {0}'}" TextWrapping="Wrap"/>
+          <TextBlock Text="{Binding SelectedUser.Address, StringFormat='Adresse : {0}'}" TextWrapping="Wrap"/>
+          <TextBlock Text="{Binding SelectedUser.DedicatedGoogleCalendar, StringFormat='Calendrier : {0}'}" TextWrapping="Wrap"/>
+          <TextBlock Text="{Binding SelectedUser.BankInfoSummary, StringFormat='Banque : {0}'}" TextWrapping="Wrap"/>
+          <TextBlock Text="{Binding SelectedUser.UserId, StringFormat='ID : {0}'}" Foreground="#4B5563" TextWrapping="Wrap"/>
+        </StackPanel>
+      </Border>
+    </Grid>
   </Grid>
 </ContentPage>