Add v5 UI settings endpoints

src/Sonarr.Api.V5/Settings/SettingsController.cs

@@ -0,0 +1,49 @@
+using System.Reflection;
+using Microsoft.AspNetCore.Mvc;
+using NzbDrone.Core.Configuration;
+using Sonarr.Http.REST;
+using Sonarr.Http.REST.Attributes;
+
+namespace Sonarr.Api.V5.Config
+{
+    public abstract class ConfigController<TResource> : RestController<TResource>
+        where TResource : RestResource, new()
+    {
+        protected readonly IConfigService _configService;
+
+        protected ConfigController(IConfigService configService)
+        {
+            _configService = configService;
+        }
+
+        protected override TResource GetResourceById(int id)
+        {
+            return GetConfig();
+        }
+
+        [HttpGet]
+        [Produces("application/json")]
+        public TResource GetConfig()
+        {
+            var resource = ToResource(_configService);
+            resource.Id = 1;
+
+            return resource;
+        }
+
+        [RestPutById]
+        [Consumes("application/json")]
+        public virtual ActionResult<TResource> SaveConfig([FromBody] TResource resource)
+        {
+            var dictionary = resource.GetType()
+                .GetProperties(BindingFlags.Instance | BindingFlags.Public)
+                .ToDictionary(prop => prop.Name, prop => prop.GetValue(resource, null));
+
+            _configService.SaveConfigDictionary(dictionary);
+
+            return Accepted(resource.Id);
+        }
+
+        protected abstract TResource ToResource(IConfigService model);
+    }
+}