Added MultiSelect input control for provider settings

src/Lidarr.Http/ClientSchema/SchemaBuilder.cs

@@ -142,10 +142,34 @@ namespace Lidarr.Http.ClientSchema
 
         private static List<SelectOption> GetSelectOptions(Type selectOptions)
         {
-            var options = from Enum e in Enum.GetValues(selectOptions)
-                          select new SelectOption { Value = Convert.ToInt32(e), Name = e.ToString() };
+            var options = selectOptions.GetFields().Where(v => v.IsStatic).Select(v =>
+            {
+                var name = v.Name.Replace('_', ' ');
+                var value = Convert.ToInt32(v.GetRawConstantValue());
+                var attrib = v.GetCustomAttribute<FieldOptionAttribute>();
+                if (attrib != null)
+                {
+                    return new SelectOption
+                    {
+                        Value = value,
+                        Name = attrib.Label ?? name,
+                        Order = attrib.Order,
+                        Hint = attrib.Hint ?? $"({value})"
+                    };
+                }
+                else
+                {
+                    return new SelectOption
+                    {
+                        Value = value,
+                        Name = name,
+                        Order = value,
+                        Hint = $"({value})"
+                    };
+                }
+            });
 
-            return options.OrderBy(o => o.Value).ToList();
+            return options.OrderBy(o => o.Order).ToList();
         }
 
         private static Func<object, object> GetValueConverter(Type propertyType)

src/Lidarr.Http/ClientSchema/SelectOption.cs

@@ -4,5 +4,7 @@
     {
         public int Value { get; set; }
         public string Name { get; set; }
+        public int Order { get; set; }
+        public string Hint { get; set; }
     }
 }

src/NzbDrone.Core/Indexers/FileList/FileListSettings.cs

@@ -42,7 +42,7 @@ namespace NzbDrone.Core.Indexers.FileList
         [FieldDefinition(3, Label = "API URL", Advanced = true, HelpText = "Do not change this unless you know what you're doing. Since your API key will be sent to that host.")]
         public string BaseUrl { get; set; }
 
-        [FieldDefinition(4, Label = "Categories", Type = FieldType.Select, SelectOptions = typeof(FileListCategories), HelpText = "Categories for use in search and feeds, leave blank to disable standard/daily shows")]
+        [FieldDefinition(4, Label = "Categories", Type = FieldType.Select, SelectOptions = typeof(FileListCategories), HelpText = "Categories for use in search and feeds")]
         public IEnumerable<int> Categories { get; set; }
 
         [FieldDefinition(5, Type = FieldType.Number, Label = "Early Download Limit", Unit = "days", HelpText = "Time before release date Lidarr will download from this indexer, empty is no limit", Advanced = true)]

src/Sonarr.Http/ClientSchema/SelectOption.cs

@@ -1,10 +0,0 @@
-namespace Sonarr.Http.ClientSchema
-{
-    public class SelectOption
-    {
-        public int Value { get; set; }
-        public string Name { get; set; }
-        public int Order { get; set; }
-        public string Hint { get; set; }
-    }
-}