New: Better interface for creating custom formats

src/NzbDrone.Api/CustomFormats/CustomFormatResource.cs

@@ -0,0 +1,42 @@
+using System.Collections.Generic;
+using System.Linq;
+using NzbDrone.Core.CustomFormats;
+using Radarr.Http.REST;
+
+namespace NzbDrone.Api.CustomFormats
+{
+    public class CustomFormatResource : RestResource
+    {
+        public string Name { get; set; }
+        public List<ICustomFormatSpecification> Specifications { get; set; }
+        public string Simplicity { get; set; }
+    }
+
+    public static class CustomFormatResourceMapper
+    {
+        public static CustomFormatResource ToResource(this CustomFormat model)
+        {
+            return new CustomFormatResource
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Specifications = model.Specifications.ToList(),
+            };
+        }
+
+        public static List<CustomFormatResource> ToResource(this IEnumerable<CustomFormat> models)
+        {
+            return models.Select(m => m.ToResource()).ToList();
+        }
+
+        public static CustomFormat ToModel(this CustomFormatResource resource)
+        {
+            return new CustomFormat
+            {
+                Id = resource.Id,
+                Name = resource.Name,
+                Specifications = resource.Specifications.ToList(),
+            };
+        }
+    }
+}