From 972a4060ca6f3e27e471464303eefce9ef59da94 Mon Sep 17 00:00:00 2001
From: David Lebee <david@poweredsoft.com>
Date: Tue, 2 Feb 2021 19:51:07 -0500
Subject: [PATCH] well advanced registration will use alter queryable service
 soon.

---
 Demo/Startup.cs                               |  4 +-
 .../IAlterQueryableService.cs                 | 18 +++++++++
 .../ServiceCollectionExtensions.cs            | 39 ++++++++++++++++++-
 3 files changed, 58 insertions(+), 3 deletions(-)
 create mode 100644 PoweredSoft.CQRS.DynamicQuery.Abstractions/IAlterQueryableService.cs

diff --git a/Demo/Startup.cs b/Demo/Startup.cs
index a5c290e..65304e3 100644
--- a/Demo/Startup.cs
+++ b/Demo/Startup.cs
@@ -62,8 +62,8 @@ namespace Demo
         private void AddDynamicQueries(IServiceCollection services)
         {
             services.AddTransient<IQueryableProvider<Contact>, ContactQueryableProvider>();
-            services.AddDynamicQuery<Contact, Contact>();
-            services.AddDynamicQueryWithParams<Contact, Contact, SearchContactParams>(name: "SearchContacts");
+            services.AddDynamicQuery<Contact>();
+            services.AddDynamicQueryWithParams<Contact, SearchContactParams>(name: "SearchContacts");
         }
 
         private void AddCommands(IServiceCollection services)
diff --git a/PoweredSoft.CQRS.DynamicQuery.Abstractions/IAlterQueryableService.cs b/PoweredSoft.CQRS.DynamicQuery.Abstractions/IAlterQueryableService.cs
new file mode 100644
index 0000000..5e183d6
--- /dev/null
+++ b/PoweredSoft.CQRS.DynamicQuery.Abstractions/IAlterQueryableService.cs
@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace PoweredSoft.CQRS.DynamicQuery.Abstractions
+{
+    public interface IAlterQueryableService<TSource, TDestination>
+    {
+        Task<IQueryable<TSource>> AlterQueryableAsync(IQueryable<TSource> query, IDynamicQuery dynamicQuery);
+    }
+    public interface IAlterQueryableService<TSource, TDestination, TParams>
+        where TParams : class
+    {
+        Task<IQueryable<TSource>> AlterQueryableAsync(IQueryable<TSource> query, IDynamicQueryParams<TParams> dynamicQuery);
+    }
+}
diff --git a/PoweredSoft.CQRS.DynamicQuery/ServiceCollectionExtensions.cs b/PoweredSoft.CQRS.DynamicQuery/ServiceCollectionExtensions.cs
index 7554a4d..0b977a0 100644
--- a/PoweredSoft.CQRS.DynamicQuery/ServiceCollectionExtensions.cs
+++ b/PoweredSoft.CQRS.DynamicQuery/ServiceCollectionExtensions.cs
@@ -12,6 +12,10 @@ namespace PoweredSoft.CQRS.DynamicQuery
 {
     public static class ServiceCollectionExtensions
     {
+        public static IServiceCollection AddDynamicQuery<TSourceAndDestination>(this IServiceCollection services, string name = null)
+            where TSourceAndDestination : class
+            => AddDynamicQuery<TSourceAndDestination, TSourceAndDestination>(services, name: name);
+
         public static IServiceCollection AddDynamicQuery<TSource, TDestination>(this IServiceCollection services, string name = null)
             where TSource : class
             where TDestination : class
@@ -33,7 +37,12 @@ namespace PoweredSoft.CQRS.DynamicQuery
             return services;
         }
 
-        public static IServiceCollection AddDynamicQueryWithParams<TSource, TDestination, TParams>(this IServiceCollection services, string name = null)
+        public static IServiceCollection AddDynamicQueryWithParams<TSourceAndDestination, TParams>(this IServiceCollection services, string name = null)
+            where TSourceAndDestination : class
+            where TParams : class
+            => AddDynamicQueryWithParams<TSourceAndDestination, TSourceAndDestination, TParams>(services, name: name);
+
+            public static IServiceCollection AddDynamicQueryWithParams<TSource, TDestination, TParams>(this IServiceCollection services, string name = null)
             where TSource : class
             where TDestination : class
             where TParams : class
@@ -57,5 +66,33 @@ namespace PoweredSoft.CQRS.DynamicQuery
 
             return services;
         }
+
+        public static IServiceCollection AddAlterQueryable<TSourceAndDestination, TService>(this IServiceCollection services)
+            where TService : class, IAlterQueryableService<TSourceAndDestination, TSourceAndDestination>
+        {
+            return services.AddTransient<IAlterQueryableService<TSourceAndDestination, TSourceAndDestination>, TService>();
+        }
+
+        public static IServiceCollection AddAlterQueryable<TSource, TDestination, TService>(this IServiceCollection services)
+            where TService : class, IAlterQueryableService<TSource, TDestination>
+        {
+            return services.AddTransient<IAlterQueryableService<TSource, TDestination>, TService>();
+        }
+
+        public static IServiceCollection AddAlterQueryableWithParams<TSourceAndTDestination, TParams, TService>
+            (this IServiceCollection services)
+            where TParams : class
+            where TService : class, IAlterQueryableService<TSourceAndTDestination, TSourceAndTDestination, TParams>
+        {
+            return services.AddTransient<IAlterQueryableService< TSourceAndTDestination, TSourceAndTDestination, TParams>, TService>();
+        }
+
+        public static IServiceCollection AddAlterQueryableWithParams<TSource, TDestination, TParams, TService>
+            (this IServiceCollection services)
+            where TParams : class
+            where TService : class, IAlterQueryableService<TSource, TDestination, TParams>
+        {
+            return services.AddTransient<IAlterQueryableService<TSource, TDestination, TParams>, TService>();
+        }
     }
 }