Translate fields on the backend

(cherry picked from commit 48b12f5b00429a7cd218d23f0544641b0da62a06)

src/NzbDrone.Api.Test/ClientSchemaTests/SchemaBuilderFixture.cs

@@ -1,6 +1,9 @@
+using System.Collections.Generic;
 using FluentAssertions;
+using Moq;
 using NUnit.Framework;
 using NzbDrone.Core.Annotations;
+using NzbDrone.Core.Localization;
 using NzbDrone.Test.Common;
 using Readarr.Http.ClientSchema;
 
@@ -9,6 +12,16 @@ namespace NzbDrone.Api.Test.ClientSchemaTests
     [TestFixture]
     public class SchemaBuilderFixture : TestBase
     {
+        [SetUp]
+        public void Setup()
+        {
+            Mocker.GetMock<ILocalizationService>()
+                .Setup(s => s.GetLocalizedString(It.IsAny<string>(), It.IsAny<Dictionary<string, object>>()))
+                .Returns<string, Dictionary<string, object>>((s, d) => s);
+
+            SchemaBuilder.Initialize(Mocker.Container);
+        }
+
         [Test]
         public void should_return_field_for_every_property()
         {

src/NzbDrone.Core/Annotations/FieldDefinitionAttribute.cs

@@ -41,6 +41,23 @@ namespace NzbDrone.Core.Annotations
         public string Hint { get; set; }
     }
 
+    [AttributeUsage(AttributeTargets.Property, AllowMultiple = true)]
+    public class FieldTokenAttribute : Attribute
+    {
+        public FieldTokenAttribute(TokenField field, string label = "", string token = "", object value = null)
+        {
+            Label = label;
+            Field = field;
+            Token = token;
+            Value = value?.ToString();
+        }
+
+        public string Label { get; set; }
+        public TokenField Field { get; set; }
+        public string Token { get; set; }
+        public string Value { get; set; }
+    }
+
     public class FieldSelectOption
     {
         public int Value { get; set; }
@@ -83,4 +100,11 @@ namespace NzbDrone.Core.Annotations
         ApiKey,
         UserName
     }
+
+    public enum TokenField
+    {
+        Label,
+        HelpText,
+        HelpTextWarning
+    }
 }

src/NzbDrone.Host/Bootstrap.cs

@@ -26,6 +26,7 @@ using NzbDrone.Core.Configuration;
 using NzbDrone.Core.Datastore.Extensions;
 using NzbDrone.Core.Lifecycle;
 using NzbDrone.Core.Messaging.Events;
+using Readarr.Http.ClientSchema;
 using PostgresOptions = NzbDrone.Core.Datastore.PostgresOptions;
 
 namespace NzbDrone.Host
@@ -155,6 +156,8 @@ namespace NzbDrone.Host
                         .AddDatabase()
                         .AddStartupContext(context)
                         .Resolve<IEventAggregator>().PublishEvent(new ApplicationStartingEvent());
+
+                    SchemaBuilder.Initialize(c);
                 })
                 .ConfigureServices(services =>
                 {

src/NzbDrone.Integration.Test/IntegrationTest.cs

@@ -1,3 +1,5 @@
+using System;
+using System.Linq;
 using System.Threading;
 using NLog;
 using NUnit.Framework;
@@ -7,7 +9,6 @@ using NzbDrone.Core.Datastore.Migration.Framework;
 using NzbDrone.Core.Indexers.Newznab;
 using NzbDrone.Test.Common;
 using NzbDrone.Test.Common.Datastore;
-using Readarr.Http.ClientSchema;
 
 namespace NzbDrone.Integration.Test
 {
@@ -50,17 +51,20 @@ namespace NzbDrone.Integration.Test
             // Make sure tasks have been initialized so the config put below doesn't cause errors
             WaitForCompletion(() => Tasks.All().SelectList(x => x.TaskName).Contains("RssSync"), 30000);
 
-            Indexers.Post(new Readarr.Api.V1.Indexers.IndexerResource
+            var indexer = Indexers.Schema().FirstOrDefault(i => i.Implementation == nameof(Newznab));
+
+            if (indexer == null)
             {
-                EnableRss = false,
-                EnableInteractiveSearch = false,
-                EnableAutomaticSearch = false,
-                ConfigContract = nameof(NewznabSettings),
-                Implementation = nameof(Newznab),
-                Name = "NewznabTest",
-                Protocol = Core.Indexers.DownloadProtocol.Usenet,
-                Fields = SchemaBuilder.ToSchema(new NewznabSettings())
-            });
+                throw new NullReferenceException("Expected valid indexer schema, found null");
+            }
+
+            indexer.EnableRss = false;
+            indexer.EnableInteractiveSearch = false;
+            indexer.EnableAutomaticSearch = false;
+            indexer.ConfigContract = nameof(NewznabSettings);
+            indexer.Implementation = nameof(Newznab);
+            indexer.Name = "NewznabTest";
+            indexer.Protocol = Core.Indexers.DownloadProtocol.Usenet;
 
             // Change Console Log Level to Debug so we get more details.
             var config = HostConfig.Get(1);

src/NzbDrone.Test.Common/AutoMoq/AutoMoqer.cs

@@ -29,6 +29,8 @@ namespace NzbDrone.Test.Common.AutoMoq
             AssemblyLoader.RegisterSQLiteResolver();
         }
 
+        public IContainer Container => _container;
+
         public virtual T Resolve<T>()
         {
             var result = _container.Resolve<T>();

src/Readarr.Http/ClientSchema/SchemaBuilder.cs

@@ -3,17 +3,25 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Reflection;
 using System.Text.Json;
+using DryIoc;
 using NzbDrone.Common.EnsureThat;
 using NzbDrone.Common.Extensions;
 using NzbDrone.Common.Reflection;
 using NzbDrone.Common.Serializer;
 using NzbDrone.Core.Annotations;
+using NzbDrone.Core.Localization;
 
 namespace Readarr.Http.ClientSchema
 {
     public static class SchemaBuilder
     {
         private static Dictionary<Type, FieldMapping[]> _mappings = new Dictionary<Type, FieldMapping[]>();
+        private static ILocalizationService _localizationService;
+
+        public static void Initialize(IContainer container)
+        {
+            _localizationService = container.Resolve<ILocalizationService>();
+        }
 
         public static List<Field> ToSchema(object model)
         {
@@ -92,13 +100,27 @@ namespace Readarr.Http.ClientSchema
                 if (propertyInfo.PropertyType.IsSimpleType())
                 {
                     var fieldAttribute = property.Item2;
+
+                    var label = fieldAttribute.Label.IsNotNullOrWhiteSpace()
+                        ? _localizationService.GetLocalizedString(fieldAttribute.Label,
+                            GetTokens(type, fieldAttribute.Label, TokenField.Label))
+                        : fieldAttribute.Label;
+                    var helpText = fieldAttribute.HelpText.IsNotNullOrWhiteSpace()
+                        ? _localizationService.GetLocalizedString(fieldAttribute.HelpText,
+                            GetTokens(type, fieldAttribute.Label, TokenField.HelpText))
+                        : fieldAttribute.HelpText;
+                    var helpTextWarning = fieldAttribute.HelpTextWarning.IsNotNullOrWhiteSpace()
+                        ? _localizationService.GetLocalizedString(fieldAttribute.HelpTextWarning,
+                            GetTokens(type, fieldAttribute.Label, TokenField.HelpTextWarning))
+                        : fieldAttribute.HelpTextWarning;
+
                     var field = new Field
                     {
                         Name = prefix + GetCamelCaseName(propertyInfo.Name),
-                        Label = fieldAttribute.Label,
+                        Label = label,
                         Unit = fieldAttribute.Unit,
-                        HelpText = fieldAttribute.HelpText,
-                        HelpTextWarning = fieldAttribute.HelpTextWarning,
+                        HelpText = helpText,
+                        HelpTextWarning = helpTextWarning,
                         HelpLink = fieldAttribute.HelpLink,
                         Order = fieldAttribute.Order,
                         Advanced = fieldAttribute.Advanced,
@@ -157,6 +179,24 @@ namespace Readarr.Http.ClientSchema
                 .ToArray();
         }
 
+        private static Dictionary<string, object> GetTokens(Type type, string label, TokenField field)
+        {
+            var tokens = new Dictionary<string, object>();
+
+            foreach (var propertyInfo in type.GetProperties())
+            {
+                foreach (var attribute in propertyInfo.GetCustomAttributes(true))
+                {
+                    if (attribute is FieldTokenAttribute fieldTokenAttribute && fieldTokenAttribute.Field == field && fieldTokenAttribute.Label == label)
+                    {
+                        tokens.Add(fieldTokenAttribute.Token, fieldTokenAttribute.Value);
+                    }
+                }
+            }
+
+            return tokens;
+        }
+
         private static List<SelectOption> GetSelectOptions(Type selectOptions)
         {
             if (selectOptions.IsEnum)