refactor(arch): introduce IEbookRepository, ISyncBroadcaster, fix EpubReader path resolution

Critical fixes (review findings #1, #2, #3): - Create IEbookRepository abstraction in Application layer - Remove illegal EF Core dependency from IngestEbookCommandHandler - Create EbookRepository implementation in Infrastructure/Persistence - Create ISyncBroadcaster in Application/Abstractions/Messaging - Create SignalRSyncBroadcaster in Infrastructure/RealTime - Move UpdateReadingProgressCommandHandler from Infrastructure → Application - Add EbookId to GetReaderPageQuery and IEpubReader signature - Rewrite EpubReaderService: DB-resolved file path, remove auto-provisioning - Split EpubService.cs into EpubReaderService.cs + EpubMetadataExtractor.cs - Add CurrentEbookId to IReaderNavigationService and ReaderNavigationService - Update WasmEpubReader and /api/epub endpoint for new signature High severity fixes (#4, #6, #7, #8, #16): - Change BookStorageService registration from Singleton → Scoped - Fix empty catch{} in ReaderCanvas JS interop init — now logs warnings - Replace all Console.WriteLine with ILogger in KnowledgeService + ReaderCanvas - Cache JsonSerializerOptions as static field in KnowledgeService - Wrap SyncService Task.Run body in comprehensive try/catch with ILogger Medium/Low fixes (#11, #13, #14, #15, #18, #20): - BookIngestionModal.DisposeAsync now nullifies _epubBytes (50MB array) - KnowledgeCoordinator.OnGraphUpdated: Action<T> → Func<T, Task> - BookStorageService: Path.Combine → forward-slash string interpolation - SignalR CancellationToken passed as named parameter (not payload arg)
2026-05-12 21:21:30 +02:00
parent d5c2952bec
commit 150cbcdc29
34 changed files with 5321 additions and 300 deletions
@@ -0,0 +1,43 @@
+using Microsoft.AspNetCore.SignalR;
+using NexusReader.Application.Abstractions.Messaging;
+using NexusReader.Infrastructure.RealTime;
+
+namespace NexusReader.Infrastructure.RealTime;
+
+/// <summary>
+/// SignalR implementation of <see cref="ISyncBroadcaster"/>.
+/// Uses <see cref="IHubContext{SyncHub}"/> to push progress updates to all of a user's connected devices.
+/// </summary>
+internal sealed class SignalRSyncBroadcaster : ISyncBroadcaster
+{
+    private readonly IHubContext<SyncHub> _hubContext;
+
+    public SignalRSyncBroadcaster(IHubContext<SyncHub> hubContext)
+    {
+        _hubContext = hubContext;
+    }
+
+    /// <inheritdoc />
+    public async Task BroadcastProgressAsync(
+        string userId,
+        string pageId,
+        DateTime timestamp,
+        string? excludedConnectionId,
+        CancellationToken cancellationToken = default)
+    {
+        var groupName = $"User_{userId}";
+
+        if (!string.IsNullOrEmpty(excludedConnectionId))
+        {
+            await _hubContext.Clients
+                .GroupExcept(groupName, excludedConnectionId)
+                .SendAsync("ProgressUpdated", pageId, timestamp, cancellationToken: cancellationToken);
+        }
+        else
+        {
+            await _hubContext.Clients
+                .Group(groupName)
+                .SendAsync("ProgressUpdated", pageId, timestamp, cancellationToken: cancellationToken);
+        }
+    }
+}