From b416d7109a8b6faaa71fd2e9413723ab14db3bec Mon Sep 17 00:00:00 2001
From: DrakiaXYZ <565558+TheDgtl@users.noreply.github.com>
Date: Sat, 11 Oct 2025 22:44:27 -0700
Subject: [PATCH 1/2] Fix launcher not showing mods Convert `Version` and
 `SptVersion` to strings when serializing JSON for AbstractModMetadata

---
 .../Models/Spt/Mod/AbstractModMetadata.cs     |  6 ++++-
 .../Json/Converters/ToStringJsonConverter.cs  | 24 +++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs

diff --git a/Libraries/SPTarkov.Server.Core/Models/Spt/Mod/AbstractModMetadata.cs b/Libraries/SPTarkov.Server.Core/Models/Spt/Mod/AbstractModMetadata.cs
index 17d0c4353..b711730e5 100644
--- a/Libraries/SPTarkov.Server.Core/Models/Spt/Mod/AbstractModMetadata.cs
+++ b/Libraries/SPTarkov.Server.Core/Models/Spt/Mod/AbstractModMetadata.cs
@@ -1,4 +1,6 @@
-using Range = SemanticVersioning.Range;
+using System.Text.Json.Serialization;
+using SPTarkov.Server.Core.Utils.Json.Converters;
+using Range = SemanticVersioning.Range;
 using Version = SemanticVersioning.Version;
 
 namespace SPTarkov.Server.Core.Models.Spt.Mod;
@@ -40,6 +42,7 @@ public abstract record AbstractModMetadata
     /// <br/>
     /// Version = new Version("1.0.0.0"); is not
     /// </summary>
+    [JsonConverter(typeof(ToStringJsonConverter<Version>))]
     public abstract Version Version { get; init; }
 
     /// <summary>
@@ -49,6 +52,7 @@ public abstract record AbstractModMetadata
     /// <br/>
     /// Version = new Version("4.0.0.0"); is not
     /// </summary>
+    [JsonConverter(typeof(ToStringJsonConverter<Range>))]
     public abstract Range SptVersion { get; init; }
 
     /// <summary>
diff --git a/Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs b/Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs
new file mode 100644
index 000000000..8e6c9454b
--- /dev/null
+++ b/Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs
@@ -0,0 +1,24 @@
+using System.Text.Json;
+using System.Text.Json.Serialization;
+
+namespace SPTarkov.Server.Core.Utils.Json.Converters;
+
+internal class ToStringJsonConverter<T> : JsonConverter<T>
+{
+    public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    {
+        throw new NotSupportedException($"Deserialization of {typeof(T).Name} from string is not supported.");
+    }
+
+    public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)
+    {
+        if (value == null)
+        {
+            writer.WriteNullValue();
+        }
+        else
+        {
+            writer.WriteStringValue(value.ToString());
+        }
+    }
+}

From 1bdfd4186e193844d014201d3c67432a9828856b Mon Sep 17 00:00:00 2001
From: DrakiaXYZ <565558+TheDgtl@users.noreply.github.com>
Date: Sat, 11 Oct 2025 22:55:44 -0700
Subject: [PATCH 2/2] Implement ToStringJsonConverter Read method

---
 .../Json/Converters/ToStringJsonConverter.cs  | 22 +++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs b/Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs
index 8e6c9454b..11069f084 100644
--- a/Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs
+++ b/Libraries/SPTarkov.Server.Core/Utils/Json/Converters/ToStringJsonConverter.cs
@@ -5,9 +5,27 @@ namespace SPTarkov.Server.Core.Utils.Json.Converters;
 
 internal class ToStringJsonConverter<T> : JsonConverter<T>
 {
-    public override T Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
+    public override T? Read(ref Utf8JsonReader reader, Type typeToConvert, JsonSerializerOptions options)
     {
-        throw new NotSupportedException($"Deserialization of {typeof(T).Name} from string is not supported.");
+        if (reader.TokenType == JsonTokenType.Null)
+        {
+            return default;
+        }
+
+        if (reader.TokenType == JsonTokenType.String)
+        {
+            var value = reader.GetString();
+            try
+            {
+                return (T?)Activator.CreateInstance(typeToConvert, value);
+            }
+            catch (Exception ex)
+            {
+                throw new JsonException($"Unable to convert \"{value}\" to {typeof(T).Name}.", ex);
+            }
+        }
+
+        throw new JsonException($"Expected string to deserialize {typeof(T).Name} but got {reader.TokenType}.");
     }
 
     public override void Write(Utf8JsonWriter writer, T value, JsonSerializerOptions options)