🐛 Fix issues cause by new data structure between services of drive

DysonNetwork.Drive/Storage/FileServiceGrpc.cs

@@ -1,4 +1,3 @@
-using DysonNetwork.Shared.Models;
 using DysonNetwork.Shared.Proto;
 using Google.Protobuf.WellKnownTypes;
 using Grpc.Core;
@@ -7,7 +6,7 @@ namespace DysonNetwork.Drive.Storage
 {
     public class FileServiceGrpc(FileService fileService) : Shared.Proto.FileService.FileServiceBase
     {
-        public override async Task<Shared.Proto.CloudFile> GetFile(GetFileRequest request, ServerCallContext context)
+        public override async Task<CloudFile> GetFile(GetFileRequest request, ServerCallContext context)
         {
             var file = await fileService.GetFileAsync(request.Id);
             return file?.ToProtoValue() ?? throw new RpcException(new Status(StatusCode.NotFound, "File not found"));
@@ -19,7 +18,7 @@ namespace DysonNetwork.Drive.Storage
             return new GetFileBatchResponse { Files = { files.Select(f => f.ToProtoValue()) } };
         }
 
-        public override async Task<Shared.Proto.CloudFile> UpdateFile(UpdateFileRequest request,
+        public override async Task<CloudFile> UpdateFile(UpdateFileRequest request,
             ServerCallContext context)
         {
             var file = await fileService.GetFileAsync(request.File.Id);

DysonNetwork.Shared/Models/CloudFile.cs

@@ -73,7 +73,7 @@ public class SnCloudFile : ModelBase, ICloudFile, IIdentifiedResource
             DeletedAt = DeletedAt,
             Id = Id,
             Name = Name,
-            FileMeta = FileMeta ?? [],
+            FileMeta = FileMeta,
             UserMeta = UserMeta ?? [],
             SensitiveMarks = SensitiveMarks,
             MimeType = MimeType,
@@ -102,13 +102,32 @@ public class SnCloudFile : ModelBase, ICloudFile, IIdentifiedResource
             Url = StorageUrl ?? string.Empty,
             ContentType = MimeType ?? string.Empty,
             UploadedAt = UploadedAt?.ToTimestamp(),
-            // Convert file metadata
             FileMeta = GrpcTypeHelper.ConvertObjectToByteString(FileMeta),
-            // Convert user metadata
             UserMeta = GrpcTypeHelper.ConvertObjectToByteString(UserMeta),
             SensitiveMarks = GrpcTypeHelper.ConvertObjectToByteString(SensitiveMarks)
         };
 
+        if (FileMeta.TryGetValue("width", out var width) && width is int w)
+            proto.Width = w;
+        if (FileMeta.TryGetValue("height", out var height) && height is int h)
+            proto.Height = h;
+        if (FileMeta.TryGetValue("blurhash", out var blurhash) && blurhash is string bh && !string.IsNullOrEmpty(bh))
+            proto.Blurhash = bh;
+
+        if (Object != null)
+        {
+            proto.Object = new Proto.FileObject
+            {
+                Id = Object.Id,
+                Size = Object.Size,
+                Meta = GrpcTypeHelper.ConvertObjectToByteString(Object.Meta),
+                MimeType = Object.MimeType ?? string.Empty,
+                Hash = Object.Hash ?? string.Empty,
+                HasCompression = Object.HasCompression,
+                HasThumbnail = Object.HasThumbnail
+            };
+        }
+
         return proto;
     }
 }

DysonNetwork.Shared/Models/CloudFileReferenceObject.cs

@@ -1,4 +1,5 @@
 using System.ComponentModel.DataAnnotations;
+using System.Text.Json;
 using DysonNetwork.Shared.Proto;
 
 namespace DysonNetwork.Shared.Models;
@@ -44,12 +45,16 @@ public class SnCloudFileReferenceObject : ModelBase, ICloudFile
 
     public static SnCloudFileReferenceObject FromProtoValue(Proto.CloudFile proto)
     {
+        var fileMeta = proto.Object != null
+            ? ConvertObjectToDictionary(proto.Object.Meta)
+            : ConvertToDictionary(proto.FileMeta);
+
         return new SnCloudFileReferenceObject
         {
             Id = proto.Id,
             Name = proto.Name,
-            FileMeta = GrpcTypeHelper.ConvertByteStringToObject<Dictionary<string, object?>>(proto.FileMeta) ?? [],
-            UserMeta = GrpcTypeHelper.ConvertByteStringToObject<Dictionary<string, object?>>(proto.UserMeta) ?? [],
+            FileMeta = fileMeta,
+            UserMeta = ConvertToDictionary(proto.UserMeta),
             SensitiveMarks = proto.HasSensitiveMarks
                 ? GrpcTypeHelper.ConvertByteStringToObject<List<ContentSensitiveMark>>(proto.SensitiveMarks)
                 : [],
@@ -64,6 +69,65 @@ public class SnCloudFileReferenceObject : ModelBase, ICloudFile
         };
     }
 
+    private static Dictionary<string, object?> ConvertObjectToDictionary(Google.Protobuf.ByteString byteString)
+    {
+        if (byteString.IsEmpty)
+            return [];
+
+        var jsonElement = GrpcTypeHelper.ConvertByteStringToObject<JsonElement>(byteString);
+        if (jsonElement.ValueKind != JsonValueKind.Object)
+            return [];
+
+        var result = new Dictionary<string, object?>();
+        foreach (var property in jsonElement.EnumerateObject())
+        {
+            result[property.Name] = ConvertJsonElement(property.Value);
+        }
+        return result;
+    }
+
+    private static Dictionary<string, object?> ConvertToDictionary(Google.Protobuf.ByteString byteString)
+    {
+        if (byteString.IsEmpty)
+            return [];
+
+        var jsonElement = GrpcTypeHelper.ConvertByteStringToObject<JsonElement>(byteString);
+        if (jsonElement.ValueKind != JsonValueKind.Object)
+            return [];
+
+        var result = new Dictionary<string, object?>();
+        foreach (var property in jsonElement.EnumerateObject())
+        {
+            result[property.Name] = ConvertJsonElement(property.Value);
+        }
+        return result;
+    }
+
+    private static object? ConvertJsonElement(JsonElement element)
+    {
+        return element.ValueKind switch
+        {
+            JsonValueKind.String => element.GetString(),
+            JsonValueKind.Number => element.TryGetInt64(out long l) ? l : element.GetDouble(),
+            JsonValueKind.True => true,
+            JsonValueKind.False => false,
+            JsonValueKind.Null => null,
+            JsonValueKind.Object => ConvertToDictionaryElement(element),
+            JsonValueKind.Array => element.EnumerateArray().Select(ConvertJsonElement).ToList(),
+            _ => null
+        };
+    }
+
+    private static Dictionary<string, object?> ConvertToDictionaryElement(JsonElement element)
+    {
+        var result = new Dictionary<string, object?>();
+        foreach (var property in element.EnumerateObject())
+        {
+            result[property.Name] = ConvertJsonElement(property.Value);
+        }
+        return result;
+    }
+
     /// <summary>
     /// Converts the current object to its protobuf representation
     /// </summary>

DysonNetwork.Shared/Proto/file.proto

@@ -54,6 +54,34 @@ message CloudFile {
 
   // Blurhash for placeholder (optional, for images)
   optional string blurhash = 15;
+
+  // Nested file object containing additional metadata
+  optional FileObject object = 16;
+}
+
+// FileObject represents the actual file data stored in cloud storage.
+// It contains metadata about the file content that may be shared across multiple references.
+message FileObject {
+  // Unique identifier for the file object
+  string id = 1;
+
+  // File size in bytes
+  int64 size = 2;
+
+  // File metadata (e.g., dimensions, duration, etc.) stored as JSON bytes
+  bytes meta = 3;
+
+  // MIME type of the file
+  string mime_type = 4;
+
+  // File content hash (e.g., MD5, SHA-256)
+  string hash = 5;
+
+  // Indicates if the file is stored with compression
+  bool has_compression = 6;
+
+  // Indicates if the file has a thumbnail
+  bool has_thumbnail = 7;
 }
 
 // Service for file operations