Epub Annotation System (#4008)

Co-authored-by: Fesaa <77553571+Fesaa@users.noreply.github.com>
Co-authored-by: Robbie Davis <robbie@therobbiedavis.com>

API/Data/Repositories/AnnotationRepository.cs

@@ -0,0 +1,49 @@
+using System.Threading.Tasks;
+using API.DTOs.Reader;
+using API.Entities;
+using AutoMapper;
+using AutoMapper.QueryableExtensions;
+using Microsoft.EntityFrameworkCore;
+
+namespace API.Data.Repositories;
+#nullable enable
+
+public interface IAnnotationRepository
+{
+    void Attach(AppUserAnnotation annotation);
+    void Update(AppUserAnnotation annotation);
+    void Remove(AppUserAnnotation annotation);
+    Task<AnnotationDto?> GetAnnotationDto(int id);
+    Task<AppUserAnnotation?> GetAnnotation(int id);
+}
+
+public class AnnotationRepository(DataContext context, IMapper mapper) : IAnnotationRepository
+{
+    public void Attach(AppUserAnnotation annotation)
+    {
+        context.AppUserAnnotation.Attach(annotation);
+    }
+
+    public void Update(AppUserAnnotation annotation)
+    {
+        context.AppUserAnnotation.Entry(annotation).State = EntityState.Modified;
+    }
+
+    public void Remove(AppUserAnnotation annotation)
+    {
+        context.AppUserAnnotation.Remove(annotation);
+    }
+
+    public async Task<AnnotationDto?> GetAnnotationDto(int id)
+    {
+        return await context.AppUserAnnotation
+            .ProjectTo<AnnotationDto>(mapper.ConfigurationProvider)
+            .FirstOrDefaultAsync(a => a.Id == id);
+    }
+
+    public async Task<AppUserAnnotation?> GetAnnotation(int id)
+    {
+        return await context.AppUserAnnotation
+            .FirstOrDefaultAsync(a => a.Id == id);
+    }
+}