New: Use Goodreads directly, allow multiple editions of a book (new DB required)

src/NzbDrone.Core/MetadataSource/Goodreads/Resources/BestBookResource.cs

@@ -0,0 +1,57 @@
+using System.Diagnostics;
+using System.Xml.Linq;
+
+namespace NzbDrone.Core.MetadataSource.Goodreads
+{
+    /// <summary>
+    /// This class models the best book in a work, as defined by the Goodreads API.
+    /// </summary>
+    [DebuggerDisplay("{DebuggerDisplay,nq}")]
+    public sealed class BestBookResource : GoodreadsResource
+    {
+        public override string ElementName => "best_book";
+
+        /// <summary>
+        /// The Id of this book.
+        /// </summary>
+        public long Id { get; private set; }
+
+        /// <summary>
+        /// The title of this book.
+        /// </summary>
+        public string Title { get; private set; }
+
+        /// <summary>
+        /// The Goodreads id of the author.
+        /// </summary>
+        public long AuthorId { get; private set; }
+
+        /// <summary>
+        /// The name of the author.
+        /// </summary>
+        public string AuthorName { get; private set; }
+
+        /// <summary>
+        /// The cover image of this book.
+        /// </summary>
+        public string ImageUrl { get; private set; }
+
+        public string LargeImageUrl { get; private set; }
+
+        public override void Parse(XElement element)
+        {
+            Id = element.ElementAsLong("id");
+            Title = element.ElementAsString("title");
+
+            var authorElement = element.Element("author");
+            if (authorElement != null)
+            {
+                AuthorId = authorElement.ElementAsLong("id");
+                AuthorName = authorElement.ElementAsString("name");
+            }
+
+            ImageUrl = element.ElementAsString("image_url");
+            ImageUrl = element.ElementAsString("large_image_url");
+        }
+    }
+}