feat(ingestion): implement hybrid metadata verification form #34 (#41)

### Description This PR implements **Issue #34: [UI/UX] Implement Hybrid Metadata Verification Form in Ingestion Modal**. ### Key Changes - **Metadata Verification State**: Introduced a new state in `BookIngestionModal.razor` allowing users to edit `Title` and `Author` before final ingestion. - **Cover Image Preview**: Added a high-fidelity cover preview with a CSS-based glowing placeholder fallback for books without embedded covers. - **Ingestion Pipeline**: - Implemented `IngestEbookCommand` and `IngestEbookCommandHandler`. - Added `IBookStorageService` and its implementation for managing EPUB and cover file storage. - Exposed `POST /api/library/ingest` Minimal API endpoint with `.DisableAntiforgery()` to handle client-side JSON uploads. - **Stability Fixes**: - Resolved DI validation errors in the WASM client by providing a dummy `IBookStorageService` registration. - Adjusted Kestrel request limits to handle large EPUB payloads (up to 100MB). - Corrected middleware ordering to ensure Antiforgery works correctly with Authentication. ### Verification - Solution builds successfully. - Manual verification of modal state transitions and API ingestion logic. Closes #34. --------- Co-authored-by: Marek Jasiński <jasins.marek@gmail.com> Reviewed-on: #41 Reviewed-by: Marek Jaisński <jasins.marek@gmail.com> Co-authored-by: Antigravity <antigravity@google.com> Co-committed-by: Antigravity <antigravity@google.com>
2026-05-12 18:19:07 +00:00
parent fe5ff81c98
commit d5c2952bec
15 changed files with 533 additions and 24 deletions
@@ -0,0 +1,71 @@
+using Microsoft.AspNetCore.Hosting;
+using NexusReader.Application.Abstractions.Services;
+
+namespace NexusReader.Infrastructure.Services;
+
+/// <summary>
+/// Infrastructure implementation of book storage using local filesystem.
+/// All paths returned are relative to the web root.
+/// </summary>
+public class BookStorageService : IBookStorageService
+{
+    private readonly IWebHostEnvironment _environment;
+
+    public BookStorageService(IWebHostEnvironment environment)
+    {
+        _environment = environment;
+    }
+
+    public async Task<string> SaveEbookAsync(byte[] data, string fileName)
+    {
+        using var stream = new MemoryStream(data);
+        return await SaveEbookAsync(stream, fileName);
+    }
+
+    public async Task<string> SaveEbookAsync(Stream data, string fileName)
+    {
+        var uploadsFolder = Path.Combine(_environment.WebRootPath, "uploads");
+        EnsureDirectoryExists(uploadsFolder);
+
+        var uniqueFileName = $"{Guid.NewGuid()}_{fileName}";
+        var filePath = Path.Combine(uploadsFolder, uniqueFileName);
+        
+        using (var fileStream = new FileStream(filePath, FileMode.Create))
+        {
+            await data.CopyToAsync(fileStream);
+        }
+        
+        return Path.Combine("uploads", uniqueFileName);
+    }
+
+    public async Task<string?> SaveCoverAsync(byte[] data, string fileName)
+    {
+        if (data == null || data.Length == 0) return null;
+        using var stream = new MemoryStream(data);
+        return await SaveCoverAsync(stream, fileName);
+    }
+
+    public async Task<string?> SaveCoverAsync(Stream data, string fileName)
+    {
+        var coversFolder = Path.Combine(_environment.WebRootPath, "covers");
+        EnsureDirectoryExists(coversFolder);
+
+        var uniqueFileName = $"{Guid.NewGuid()}_{fileName}";
+        var filePath = Path.Combine(coversFolder, uniqueFileName);
+        
+        using (var fileStream = new FileStream(filePath, FileMode.Create))
+        {
+            await data.CopyToAsync(fileStream);
+        }
+        
+        return Path.Combine("covers", uniqueFileName);
+    }
+
+    private void EnsureDirectoryExists(string path)
+    {
+        if (!Directory.Exists(path))
+        {
+            Directory.CreateDirectory(path);
+        }
+    }
+}