fix: amend 5cb61d275d

Add missing services

OliverBooth/Services/IReadingListService.cs

@@ -0,0 +1,16 @@
+using OliverBooth.Data.Web;
+
+namespace OliverBooth.Services;
+
+/// <summary>
+///     Represents a service which fetches books from the reading list.
+/// </summary>
+public interface IReadingListService
+{
+    /// <summary>
+    ///     Gets the books in the reading list with the specified state.
+    /// </summary>
+    /// <param name="state">The state.</param>
+    /// <returns>A collection of books in the specified state.</returns>
+    IReadOnlyCollection<IBook> GetBooks(BookState state);
+}

OliverBooth/Services/ReadingListService.cs

@@ -0,0 +1,31 @@
+using Microsoft.EntityFrameworkCore;
+using OliverBooth.Data.Web;
+
+namespace OliverBooth.Services;
+
+internal sealed class ReadingListService : IReadingListService
+{
+    private readonly IDbContextFactory<WebContext> _dbContextFactory;
+
+    /// <summary>
+    ///     Initializes a new instance of the <see cref="ReadingListService" /> class.
+    /// </summary>
+    /// <param name="dbContextFactory">The database context factory.</param>
+    public ReadingListService(IDbContextFactory<WebContext> dbContextFactory)
+    {
+        _dbContextFactory = dbContextFactory;
+    }
+
+    /// <summary>
+    ///     Gets the books in the reading list with the specified state.
+    /// </summary>
+    /// <param name="state">The state.</param>
+    /// <returns>A collection of books in the specified state.</returns>
+    public IReadOnlyCollection<IBook> GetBooks(BookState state)
+    {
+        using WebContext context = _dbContextFactory.CreateDbContext();
+        return state == (BookState)(-1)
+            ? context.Books.ToArray()
+            : context.Books.Where(b => b.State == state).ToArray();
+    }
+}