oprava konvertoru

Infrastructure/SdkWriteBypassJsonConverter.cs

@@ -0,0 +1,30 @@
+using Newtonsoft.Json;
+
+namespace Idoklad.Infrastructure;
+
+/// <summary>
+/// Wraps an iDoklad SDK converter that only supports reading. Reading is delegated to the SDK
+/// converter, while <see cref="CanWrite"/> is false, so Newtonsoft writes the value with the
+/// standard member-by-member serialization instead of calling the SDK's <c>WriteJson</c>.
+/// </summary>
+public sealed class SdkWriteBypassJsonConverter : JsonConverter
+{
+    private readonly JsonConverter _sdkConverter;
+
+    public SdkWriteBypassJsonConverter(JsonConverter sdkConverter)
+    {
+        _sdkConverter = sdkConverter;
+    }
+
+    public override bool CanRead => _sdkConverter.CanRead;
+
+    public override bool CanWrite => false;
+
+    public override bool CanConvert(Type objectType) => _sdkConverter.CanConvert(objectType);
+
+    public override object? ReadJson(JsonReader reader, Type objectType, object? existingValue, JsonSerializer serializer)
+        => _sdkConverter.ReadJson(reader, objectType, existingValue, serializer);
+
+    public override void WriteJson(JsonWriter writer, object? value, JsonSerializer serializer)
+        => throw new InvalidOperationException("CanWrite is false; Newtonsoft must not call this converter for writing.");
+}