[OneBot] Implemented mark_msg_as_read Operation

Lagrange.OneBot/Core/Operation/Message/MarkMsgAsReadOperation.cs

@@ -0,0 +1,27 @@
+using System.Text.Json;
+using System.Text.Json.Nodes;
+using Lagrange.Core;
+using Lagrange.Core.Common.Interface.Api;
+using Lagrange.Core.Message;
+using Lagrange.OneBot.Core.Entity.Action;
+using Lagrange.OneBot.Core.Operation.Converters;
+using Lagrange.OneBot.Database;
+using LiteDB;
+
+namespace Lagrange.OneBot.Core.Operation.Message;
+
+[Operation("mark_msg_as_read")]
+internal class MarkMsgAsReadOperation(LiteDatabase database) : IOperation
+{
+    public async Task<OneBotResult> HandleOperation(BotContext context, JsonNode? payload)
+    {
+        if (payload.Deserialize<OneBotGetMessage>(SerializerOptions.DefaultOptions) is { } getMsg)
+        {
+            var record = database.GetCollection<MessageRecord>().FindOne(x => x.MessageHash == getMsg.MessageId);
+            var chain = (MessageChain)record;
+            await context.MarkAsRead(chain);
+        }
+
+        throw new Exception();
+    }
+}