From 27fdde55516c1b31be69a3d5424f042792d72878 Mon Sep 17 00:00:00 2001
From: Niek Otten <not@respellion.nl>
Date: Thu, 23 Jul 2026 11:53:16 +0200
Subject: [PATCH] feat(domain): FindDueForHerregistratieReminderAsync filters
 on the reminder-due rule (refs #18)

refs #18
---
 .../domain/Big.Infrastructure/InMemoryRegistrationStore.cs     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/services/domain/Big.Infrastructure/InMemoryRegistrationStore.cs b/services/domain/Big.Infrastructure/InMemoryRegistrationStore.cs
index 75e630c..68a6590 100644
--- a/services/domain/Big.Infrastructure/InMemoryRegistrationStore.cs
+++ b/services/domain/Big.Infrastructure/InMemoryRegistrationStore.cs
@@ -29,5 +29,6 @@ public sealed class InMemoryRegistrationStore : IRegistrationStore
 
     public Task<IReadOnlyList<Registration>> FindDueForHerregistratieReminderAsync(
         DateTimeOffset asOf, CancellationToken ct = default)
-        => Task.FromResult<IReadOnlyList<Registration>>([]); // RED stub
+        => Task.FromResult<IReadOnlyList<Registration>>(
+            _byId.Values.Where(r => r.HerregistratieReminderDue(asOf)).ToList());
 }