Update database seeder

src/Tribufu.Database/DatabaseSeeder.cs

@@ -0,0 +1,50 @@
+// Copyright (c) Tribufu. All Rights Reserved.
+// SPDX-License-Identifier: MIT
+
+using Microsoft.Extensions.DependencyInjection;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using Tribufu.Database.Repositories;
+
+namespace Tribufu.Database
+{
+    public class DatabaseSeeder
+    {
+        private readonly IServiceProvider _provider;
+
+        public DatabaseSeeder(IServiceProvider provider)
+        {
+            _provider = provider;
+        }
+
+        public async Task SeedAsync()
+        {
+            var repoType = typeof(IRepository<,>);
+
+            var repos = _provider
+                .GetServices<object>()
+                .Where(s =>
+                {
+                    var type = s.GetType();
+                    return type.GetInterfaces().Any(i => i.IsGenericType && i.GetGenericTypeDefinition() == repoType);
+                })
+                .ToList();
+
+            foreach (var repo in repos)
+            {
+                var method = repo.GetType().GetMethod("SeedAsync");
+
+                if (method != null)
+                {
+                    var task = method.Invoke(repo, null);
+
+                    if (task != null)
+                    {
+                        await (Task)task;
+                    }
+                }
+            }
+        }
+    }
+}

src/Tribufu.Database/Repositories/IRepository.cs

@@ -6,13 +6,10 @@ using System.Threading.Tasks;
 
 namespace Tribufu.Database.Repositories
 {
-    public interface IRepository
+    public interface IRepository<T, K> where T : class
     {
-        void SeedDefaults();
-    }
+        Task SeedAsync();
 
-    public interface IRepository<T, K> : IRepository where T : class
-    {
         IList<T> GetAll();
 
         Task<IList<T>> GetAllAsync();

src/Tribufu.Database/Repositories/Repository.cs

@@ -21,7 +21,7 @@ namespace Tribufu.Database.Repositories
             _dbSet = context.Set<T>();
         }
 
-        public virtual void SeedDefaults()
+        public virtual async Task SeedAsync()
         {
         }
 

src/Tribufu.Database/Repositories/RepositorySeeder.cs

@@ -1,25 +0,0 @@
-// Copyright (c) Tribufu. All Rights Reserved.
-// SPDX-License-Identifier: MIT
-
-using System.Collections.Generic;
-
-namespace Tribufu.Database.Repositories
-{
-    public class RepositorySeeder
-    {
-        private readonly IEnumerable<IRepository> _repositories;
-
-        public RepositorySeeder(IEnumerable<IRepository> repositories)
-        {
-            _repositories = repositories;
-        }
-
-        public void Run()
-        {
-            foreach (var repo in _repositories)
-            {
-                repo.SeedDefaults();
-            }
-        }
-    }
-}