From df0737e55afeb5c01eb39909605970d1d3a73ffc Mon Sep 17 00:00:00 2001
From: Melodi <62381002+Melodi17@users.noreply.github.com>
Date: Sun, 13 Sep 2026 13:22:20 +1000
Subject: refactor: cleanup; feat: connection to agent

---
 src/marlin.web/Data/JsonValueComparer.cs | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 src/marlin.web/Data/JsonValueComparer.cs

(limited to 'src/marlin.web/Data/JsonValueComparer.cs')

diff --git a/src/marlin.web/Data/JsonValueComparer.cs b/src/marlin.web/Data/JsonValueComparer.cs
new file mode 100644
index 0000000..f07c133
--- /dev/null
+++ b/src/marlin.web/Data/JsonValueComparer.cs
@@ -0,0 +1,23 @@
+namespace marlin.web.Data;
+
+using System.Text.Json;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.ChangeTracking;
+using Microsoft.EntityFrameworkCore.Metadata.Builders;
+
+public static class JsonValueComparer
+{
+    public static ValueComparer<T> Create<T>() => new(
+        (a, b) => JsonSerializer.Serialize(a, (JsonSerializerOptions?)null) == JsonSerializer.Serialize(b, (JsonSerializerOptions?)null),
+        v => JsonSerializer.Serialize(v, (JsonSerializerOptions?)null).GetHashCode(),
+        v => JsonSerializer.Deserialize<T>(JsonSerializer.Serialize(v, (JsonSerializerOptions?)null), (JsonSerializerOptions?)null)!);
+}
+
+public static class PropertyBuilderExtensions
+{
+    public static PropertyBuilder<T> HasJsonConversion<T>(this PropertyBuilder<T> builder) =>
+        builder.HasConversion(
+            v => JsonSerializer.Serialize(v, (JsonSerializerOptions?)null),
+            v => JsonSerializer.Deserialize<T>(v, (JsonSerializerOptions?)null)!,
+            JsonValueComparer.Create<T>());
+}
-- 
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