init

OpenArchival.Blazor.AdminPages/AdminHome.razor

@@ -1,15 +1,69 @@
 @page "/admin"
+@using MudBlazor
 @using OpenArchival.Blazor.AdminPages.Shared
 @using OpenArchival.DataAccess
 @using Microsoft.AspNetCore.Authorization
+@using OpenArchival.DataAccess.FileAccessManager
 
 @layout AdminControlPanelLayout
 
 @attribute [Authorize(Roles =$"{UserRoles.Admin}, {UserRoles.Writer}")]
+@inject IFileAccessManager FileAccessManager
+@inject ISnackbar Snackbar
+
 <h3>Admin Home</h3>
 
 <p>Welcome to the admin panel of your website! Choose an option on the left hand side bar to configure this application.</p>
 
-@code {
+<MudPaper Class="pa-4 mt-4" Elevation="3">
+    <MudText Typo="Typo.h6" Class="mb-2">Maintenance Tasks</MudText>
+    <MudDivider Class="mb-4" />
+    
+    <div class="d-flex align-center gap-4">
+        <MudButton Variant="Variant.Filled" 
+                   Color="Color.Primary" 
+                   OnClick="OnBackfillClicked" 
+                   Disabled="@_isBackfilling"
+                   StartIcon="@(_isBackfilling ? null : Icons.Material.Filled.ImageSearch)">
+            @if (_isBackfilling)
+            {
+                <MudProgressCircular Class="ms-n1" Size="Size.Small" Indeterminate="true" />
+                <MudText Class="ms-2">Backfilling Thumbnails...</MudText>
+            }
+            else
+            {
+                <MudText>Backfill Missing Thumbnails</MudText>
+            }
+        </MudButton>
+        
+        <MudText Typo="Typo.body2" Color="Color.Secondary">
+            Generates thumbnails for existing images that were uploaded before the thumbnail system was implemented.
+        </MudText>
+    </div>
+</MudPaper>
 
+@code {
+    private bool _isBackfilling = false;
+
+    private async Task OnBackfillClicked()
+    {
+        _isBackfilling = true;
+        StateHasChanged();
+
+        try
+        {
+            var result = await FileAccessManager.BackfillThumbnailsAsync();
+            Snackbar.Add($"Backfill complete: {result.Processed} processed, {result.Failed} failed.", 
+                result.Failed > 0 ? Severity.Warning : Severity.Success);
+        }
+        catch (Exception ex)
+        {
+            Snackbar.Add($"Error during backfill: {ex.Message}", Severity.Error);
+        }
+        finally
+        {
+            _isBackfilling = false;
+            StateHasChanged();
+        }
+    }
 }