Add method for registering SSB codelists with override options contro…

…lling the mapping to description and help texts

src/Altinn.Codelists/SSB/Extensions/ServiceCollectionExtensions.cs

@@ -64,4 +64,20 @@ public static IServiceCollection AddSSBClassificationCodelistProvider(this IServ
 
         return services;
     }
+
+    /// <summary>
+    /// Adds the specified classification based on the known classification id. If it is an id mapped to the <see cref="Classification"/> enum
+    /// the correct enum will be set, otherwise Custom will be used as enum value but the id will be sent to the underlying api.
+    /// </summary>
+    /// <param name="services">The <see cref="IServiceCollection"/> to add to</param>
+    /// <param name="id">The codelist id</param>
+    /// <param name="classificationId">The id of the classification to return</param>
+    /// <param name="options"><see cref="ClassificationOptions"/> allowing control over how data maps from the source to the app options</param>
+    /// <param name="defaultKeyValuePairs">Default set of key/value pairs to be used. Will be overriden by matching qyery parameters runtime.</param>
+    public static IServiceCollection AddSSBClassificationCodelistProvider(this IServiceCollection services, string id, int classificationId, ClassificationOptions options, Dictionary<string, string>? defaultKeyValuePairs = null)
+    {
+        services.AddTransient<IAppOptionsProvider>(sp => new ClassificationCodelistProvider(id, classificationId, sp.GetRequiredService<IClassificationsClient>(), defaultKeyValuePairs, options));
+
+        return services;
+    }
 }