From c300058d82f1ec3c65468f8bca9280925a240cb8 Mon Sep 17 00:00:00 2001
From: Natalia Portillo <claunia@claunia.com>
Date: Sun, 12 Oct 2025 11:20:58 +0100
Subject: [PATCH] [AaruFormat] Implement SetMetadata.

---
 Aaru.Images/AaruFormat/Metadata.cs      | 30 +++++++++++++++++++++++++
 Aaru.Images/AaruFormat/Unimplemented.cs |  2 --
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/Aaru.Images/AaruFormat/Metadata.cs b/Aaru.Images/AaruFormat/Metadata.cs
index a673b936f..35860ef1d 100644
--- a/Aaru.Images/AaruFormat/Metadata.cs
+++ b/Aaru.Images/AaruFormat/Metadata.cs
@@ -1,11 +1,36 @@
 using System;
+using System.IO;
 using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
+using System.Text.Json;
+using Aaru.CommonTypes.AaruMetadata;
 
 namespace Aaru.Images;
 
 public sealed partial class AaruFormat
 {
+#region IWritableOpticalImage Members
+
+    /// <inheritdoc />
+    public bool SetMetadata(Metadata metadata)
+    {
+        var jsonMs = new MemoryStream();
+
+        JsonSerializer.Serialize(jsonMs,
+                                 new MetadataJson
+                                 {
+                                     AaruMetadata = AaruMetadata
+                                 },
+                                 typeof(MetadataJson),
+                                 MetadataJsonContext.Default);
+
+        byte[] buffer = jsonMs.ToArray();
+
+        return aaruf_set_aaru_json_metadata(_context, buffer, (ulong)buffer.Length) == Status.Ok;
+    }
+
+#endregion
+
     // AARU_EXPORT int32_t AARU_CALL aaruf_get_image_info(const void *context, ImageInfo *image_info)
     [DllImport("libaaruformat",
                EntryPoint = "aaruf_get_image_info",
@@ -86,4 +111,9 @@ public sealed partial class AaruFormat
     [UnmanagedCallConv(CallConvs = [typeof(CallConvStdcall)])]
     private static partial Status aaruf_get_geometry(IntPtr   context, out uint cylinders, out uint heads,
                                                      out uint sectorsPerTrack);
+
+    // AARU_EXPORT int32_t AARU_CALL aaruf_set_aaru_json_metadata(void *context, uint8_t *data, size_t length)
+    [LibraryImport("libaaruformat", EntryPoint = "aaruf_set_aaru_json_metadata", SetLastError = true)]
+    [UnmanagedCallConv(CallConvs = [typeof(CallConvStdcall)])]
+    private static partial Status aaruf_set_aaru_json_metadata(IntPtr context, [In] byte[] data, ulong length);
 }
\ No newline at end of file
diff --git a/Aaru.Images/AaruFormat/Unimplemented.cs b/Aaru.Images/AaruFormat/Unimplemented.cs
index c398410b6..44e2571b0 100644
--- a/Aaru.Images/AaruFormat/Unimplemented.cs
+++ b/Aaru.Images/AaruFormat/Unimplemented.cs
@@ -25,8 +25,6 @@ public sealed partial class AaruFormat
     public bool Create(string path, MediaType mediaType, Dictionary<string, string> options, ulong sectors,
                        uint   sectorSize) => throw new NotImplementedException();
 
-    /// <inheritdoc />
-    public bool SetMetadata(Metadata metadata) => throw new NotImplementedException();
 
     /// <inheritdoc />
     public bool SetDumpHardware(List<DumpHardware> dumpHardware) => throw new NotImplementedException();