feat: implement real-time reading progress and refactor profile to CQRS

src/NexusReader.Infrastructure/Services/EpubService.cs

@@ -4,14 +4,23 @@ using FluentResults;
 using NexusReader.Application.Abstractions.Services;
 using NexusReader.Application.Queries.Reader;
 using VersOne.Epub;
+using Microsoft.EntityFrameworkCore;
+using NexusReader.Data.Persistence;
+using NexusReader.Domain.Entities;
 
 namespace NexusReader.Infrastructure.Services;
 
 public class EpubService : IEpubService
 {
+    private readonly IDbContextFactory<AppDbContext> _dbContextFactory;
     private const string EpubPath = "wwwroot/assets/book.epub";
     private const int WordThreshold = 1000;
 
+    public EpubService(IDbContextFactory<AppDbContext> dbContextFactory)
+    {
+        _dbContextFactory = dbContextFactory;
+    }
+
     public async Task<Result<ReaderPageViewModel>> GetEpubContentAsync(int chapterIndex)
     {
         try
@@ -100,7 +109,14 @@ public class EpubService : IEpubService
                 blocks.Add(CreateAiTrigger($"trigger-{blockCounter++}"));
             }
 
-            return Result.Ok(new ReaderPageViewModel(blocks, chapterIndex, readingOrder.Count, chapterTitle));
+            // Find the EbookId from DB for this file
+            using var context = await _dbContextFactory.CreateDbContextAsync();
+            var ebookId = await context.Ebooks
+                .Where(e => e.FilePath.Contains("book.epub"))
+                .Select(e => e.Id)
+                .FirstOrDefaultAsync();
+
+            return Result.Ok(new ReaderPageViewModel(blocks, chapterIndex, readingOrder.Count, chapterTitle, ebookId));
         }
         catch (Exception ex)
         {