From e5898dbfe7fca892d8c01f212405a937edb67b2a Mon Sep 17 00:00:00 2001
From: Maksym Sadovnychyy <maksym.sadovnychyy@gmail.com>
Date: Mon, 9 Jun 2025 22:51:58 +0200
Subject: [PATCH] (feature): Dictionary<Guid, List<Guid>> serializer

---
 .../MaksIT.MongoDB.Linq.Tests.csproj          |  4 +--
 .../MaksIT.MongoDB.Linq.csproj                |  2 +-
 .../GuidKeyDictionarySerializer.cs            | 30 +++++++++++++++++++
 3 files changed, 33 insertions(+), 3 deletions(-)
 create mode 100644 src/MaksIT.MongoDB.Linq/Serializers/GuidKeyDictionarySerializer.cs

diff --git a/src/MaksIT.MongoDB.Linq.Tests/MaksIT.MongoDB.Linq.Tests.csproj b/src/MaksIT.MongoDB.Linq.Tests/MaksIT.MongoDB.Linq.Tests.csproj
index 7d9a536..a6fcbc2 100644
--- a/src/MaksIT.MongoDB.Linq.Tests/MaksIT.MongoDB.Linq.Tests.csproj
+++ b/src/MaksIT.MongoDB.Linq.Tests/MaksIT.MongoDB.Linq.Tests.csproj
@@ -16,9 +16,9 @@
     </PackageReference>
     <PackageReference Include="MaksIT.Core" Version="1.4.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="9.0.5" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.0">
+    <PackageReference Include="xunit.runner.visualstudio" Version="3.1.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/src/MaksIT.MongoDB.Linq/MaksIT.MongoDB.Linq.csproj b/src/MaksIT.MongoDB.Linq/MaksIT.MongoDB.Linq.csproj
index b019ef2..aed4c0b 100644
--- a/src/MaksIT.MongoDB.Linq/MaksIT.MongoDB.Linq.csproj
+++ b/src/MaksIT.MongoDB.Linq/MaksIT.MongoDB.Linq.csproj
@@ -8,7 +8,7 @@
 
     <!-- NuGet package metadata -->
     <PackageId>MaksIT.MongoDB.Linq</PackageId>
-    <Version>1.1.0</Version>
+    <Version>1.1.1</Version>
     <Authors>Maksym Sadovnychyy</Authors>
     <Company>MAKS-IT</Company>
     <Product>MaksIT.MongoDB.Linq</Product>
diff --git a/src/MaksIT.MongoDB.Linq/Serializers/GuidKeyDictionarySerializer.cs b/src/MaksIT.MongoDB.Linq/Serializers/GuidKeyDictionarySerializer.cs
new file mode 100644
index 0000000..f446fdf
--- /dev/null
+++ b/src/MaksIT.MongoDB.Linq/Serializers/GuidKeyDictionarySerializer.cs
@@ -0,0 +1,30 @@
+using MongoDB.Bson;
+using MongoDB.Bson.IO;
+using MongoDB.Bson.Serialization;
+using MongoDB.Bson.Serialization.Serializers;
+
+
+namespace MaksIT.MaksIT.MongoDB.Linq.Serializers;
+
+public class GuidKeyDictionarySerializer<TValue> : SerializerBase<Dictionary<Guid, TValue>> {
+  public override void Serialize(BsonSerializationContext context, BsonSerializationArgs args, Dictionary<Guid, TValue> value) {
+    context.Writer.WriteStartDocument();
+    foreach (var kvp in value) {
+      context.Writer.WriteName(kvp.Key.ToString()); // Convert Guid key to string
+      BsonSerializer.Serialize(context.Writer, kvp.Value);
+    }
+    context.Writer.WriteEndDocument();
+  }
+
+  public override Dictionary<Guid, TValue> Deserialize(BsonDeserializationContext context, BsonDeserializationArgs args) {
+    var dictionary = new Dictionary<Guid, TValue>();
+    context.Reader.ReadStartDocument();
+    while (context.Reader.ReadBsonType() != BsonType.EndOfDocument) {
+      var key = Guid.Parse(context.Reader.ReadName());
+      var value = BsonSerializer.Deserialize<TValue>(context.Reader);
+      dictionary.Add(key, value);
+    }
+    context.Reader.ReadEndDocument();
+    return dictionary;
+  }
+}