[Core] Implemented group reaction related api (#45)

Co-authored-by: Linwenxuan04 <llwwxxllwwxx@gmail.com>

Author: A-n-o-n-0

Lagrange.Core/Common/Interface/OperationExt.cs

@@ -38,4 +38,7 @@ public static Task<BotStranger> FetchStranger(this BotContext context, long uin)
 
     public static Task SetGroupNotification(this BotContext context, long groupUin, ulong sequence, BotGroupNotificationType type, bool isFiltered, GroupNotificationOperate operate, string message = "") =>
         context.EventContext.GetLogic<OperationLogic>().SetGroupNotification(groupUin, sequence, type, isFiltered, operate, message);
+
+    public static Task SetGroupReaction(this BotContext context, long groupUin, ulong sequence, string code, bool isAdd) =>
+        context.EventContext.GetLogic<OperationLogic>().SetGroupReaction(groupUin, sequence, code, isAdd);
 }

Lagrange.Core/Events/EventArgs/BotGroupReactionEvent.cs

@@ -0,0 +1,21 @@
+namespace Lagrange.Core.Events.EventArgs;
+
+public class BotGroupReactionEvent(long targetGroupUin, ulong targetSequence, long operatorUin, bool isAdd, string code, ulong currentCount) : EventBase
+{
+    public long TargetGroupUin { get; } = targetGroupUin;
+
+    public ulong TargetSequence { get; } = targetSequence;
+
+    public long OperatorUin { get; } = operatorUin;
+
+    public bool IsAdd { get; } = isAdd;
+
+    public string Code { get; } = code;
+
+    public ulong CurrentCount { get; } = currentCount;
+
+    public override string ToEventMessage()
+    {
+        return $"{nameof(BotGroupReactionEvent)}: Target {TargetGroupUin} > {TargetSequence} Operator {OperatorUin} {(IsAdd ? "Add" : "Reduce")} {Code} Current {CurrentCount}";
+    }
+}

Lagrange.Core/Internal/Context/EventContext.cs

@@ -13,9 +13,9 @@ namespace Lagrange.Core.Internal.Context;
 internal class EventContext : IDisposable
 {
     private const string Tag = nameof(EventContext);
-    
+
     private readonly BotContext _context;
-    
+
     private readonly FrozenDictionary<Type, List<ILogic>> _events;
 
     private readonly FrozenDictionary<Type, ILogic> _logics;
@@ -27,7 +27,7 @@ public EventContext(BotContext context)
     {
         var events = new Dictionary<Type, List<ILogic>>();
         var logics = new Dictionary<Type, ILogic>();
-        
+
         foreach (var type in typeof(ILogic).Assembly.GetTypes())
         {
             if (type.HasImplemented<ILogic>() && Activator.CreateInstance(type, context) is ILogic instance)
@@ -39,30 +39,30 @@ public EventContext(BotContext context)
                         list = [];
                         events.Add(@event.EventType, list);
                     }
-                    
+
                     list.Add(instance);
                 }
-                
+
                 logics[type] = instance;
             }
         }
-        
+
         _context = context;
         _events = events.ToFrozenDictionary();
         _logics = logics.ToFrozenDictionary();
     }
-    
+
     public async ValueTask<T> SendEvent<T>(ProtocolEvent @event) where T : ProtocolEvent
     {
         try
         {
             await HandleOutgoingEvent(@event);
-            var (frame, attribute) =  await _context.ServiceContext.Resolve(@event);
+            var (frame, attribute) = await _context.ServiceContext.Resolve(@event);
             if (frame.Sequence == 0) throw new LagrangeException("The sequence number is 0 for the SSOFrame");
-            
+
             var @return = await _context.PacketContext.SendPacket(frame, attribute);
             var resolved = await _context.ServiceContext.Resolve(@return);
-            
+
             if (resolved is T result)
             {
                 await HandleIncomingEvent(result);
@@ -76,7 +76,7 @@ public async ValueTask<T> SendEvent<T>(ProtocolEvent @event) where T : ProtocolE
             throw new LagrangeException("An error occurred while sending the event", e);
         }
     }
-    
+
     private async ValueTask HandleIncomingEvent(ProtocolEvent @event)
     {
         if (_events.TryGetValue(@event.GetType(), out var logics))
@@ -112,7 +112,7 @@ private async ValueTask HandleOutgoingEvent(ProtocolEvent @event)
             }
         }
     }
-    
+
     public async ValueTask HandleOutgoingEvent(EventBase @event)
     {
         if (_events.TryGetValue(@event.GetType(), out var logics))
@@ -142,8 +142,12 @@ public async Task HandleServerPacket(SsoPacket packet)
         {
             _context.LogWarning(Tag, "Service not found for command: {0}", e, e.Command);
         }
+        catch (Exception e)
+        {
+            _context.LogError(Tag, "Handle {0} server packet failed", e, packet.Command);
+        }
     }
-    
+
     public T GetLogic<T>() where T : ILogic => (T)_logics[typeof(T)];
 
     public void Dispose()

Lagrange.Core/Internal/Context/PacketContext.cs

@@ -42,7 +42,7 @@ public ValueTask<SsoPacket> SendPacket(SsoPacket packet, ServiceAttribute option
         Task.Run(async () => // Schedule the task to the ThreadPool
         {
             ReadOnlyMemory<byte> frame;
-            
+
             switch (options.RequestType)
             {
                 case RequestType.D2Auth:
@@ -72,18 +72,18 @@ public ValueTask<SsoPacket> SendPacket(SsoPacket packet, ServiceAttribute option
                     throw new InvalidOperationException($"Unknown RequestType: {options.RequestType}");
                 }
             }
-            
+          
             await _context.SocketContext.Send(frame);
         });
-        
+
         return new ValueTask<SsoPacket>(tcs, 0);
     }
 
     public void DispatchPacket(ReadOnlySpan<byte> buffer)
     {
         var service = _servicePacker.Parse(buffer);
         var sso = _ssoPacker.Parse(service);
-        
+
         if (_pendingTasks.TryRemove(sso.Sequence, out var tcs))
         {
             if (sso is { RetCode: not 0, Extra: var extra })
@@ -98,7 +98,7 @@ public void DispatchPacket(ReadOnlySpan<byte> buffer)
         }
         else
         {
-            _ = _context.EventContext.HandleServerPacket(sso);
+            Task.Run(() => _context.EventContext.HandleServerPacket(sso));
         }
     }
-}
+}

Lagrange.Core/Internal/Events/System/AddGroupReactionEvent.cs

@@ -0,0 +1,15 @@
+namespace Lagrange.Core.Internal.Events.System;
+
+internal class AddGroupReactionEventReq(long groupUin, ulong sequence, string code) : ProtocolEvent
+{
+    public long GroupUin { get; } = groupUin;
+
+    public ulong Sequence { get; } = sequence;
+
+    public string Code { get; } = code;
+}
+
+internal class AddGroupReactionEventResp : ProtocolEvent
+{
+    public static readonly AddGroupReactionEventResp Default = new();
+}

Lagrange.Core/Internal/Events/System/ReduceGroupReactionEventReq.cs

@@ -0,0 +1,15 @@
+namespace Lagrange.Core.Internal.Events.System;
+
+internal class ReduceGroupReactionEventReq(long groupUin, ulong sequence, string code) : ProtocolEvent
+{
+    public long GroupUin { get; } = groupUin;
+
+    public ulong Sequence { get; } = sequence;
+
+    public string Code { get; } = code;
+}
+
+internal class ReduceGroupReactionEventResp : ProtocolEvent
+{
+    public static readonly ReduceGroupReactionEventResp Default = new();
+}

Lagrange.Core/Internal/Logic/OperationLogic.cs

@@ -274,4 +274,14 @@ await context.EventContext.SendEvent<SetGroupNotificationEventResp>(
             );
         }
     }
+
+    public async Task SetGroupReaction(long groupUin, ulong sequence, string code, bool isAdd)
+    {
+        if (isAdd) await context.EventContext.SendEvent<AddGroupReactionEventResp>(
+            new AddGroupReactionEventReq(groupUin, sequence, code)
+        );
+        else await context.EventContext.SendEvent<ReduceGroupReactionEventResp>(
+            new ReduceGroupReactionEventReq(groupUin, sequence, code)
+        );
+    }
 }

Lagrange.Core/Internal/Logic/PushLogic.cs

@@ -27,7 +27,7 @@ public async ValueTask Incoming(ProtocolEvent e)
             case Type.TempMessage:
             {
                 var message = await context.EventContext.GetLogic<MessagingLogic>().Parse(messageEvent.MsgPush.CommonMessage);
-                if (message.Entities[0] is LightAppEntity {AppName: "com.tencent.qun.invite"} || message.Entities[0] is LightAppEntity {AppName: "com.tencent.tuwen.lua"}) 
+                if (message.Entities[0] is LightAppEntity { AppName: "com.tencent.qun.invite" } || message.Entities[0] is LightAppEntity { AppName: "com.tencent.tuwen.lua" })
                 {
                     var app = (LightAppEntity)message.Entities[0];
                     using var document = JsonDocument.Parse(app.Payload);
@@ -152,8 +152,8 @@ public async ValueTask Incoming(ProtocolEvent e)
                 var pkgType210 = (Event0x210SubType)messageEvent.MsgPush.CommonMessage.ContentHead.SubType;
                 switch (pkgType210)
                 {
-                    case Event0x210SubType.FriendRequestNotice
-                        when messageEvent.MsgPush.CommonMessage.MessageBody.MsgContent is { } content:
+                    case Event0x210SubType.FriendRequestNotice when messageEvent.MsgPush.CommonMessage.MessageBody.MsgContent is { } content:
+                    {
                         var friendRequest = ProtoHelper.Deserialize<FriendRequest>(content.Span);
                         context.EventInvoker.PostEvent(new BotFriendRequestEvent(
                             friendRequest.Info!.SourceUid,
@@ -162,6 +162,12 @@ public async ValueTask Incoming(ProtocolEvent e)
                             friendRequest.Info.Source ?? string.Empty
                         ));
                         break;
+                    }
+                    default:
+                    {
+                        context.LogWarning(nameof(PushLogic), "Unknown 0x210 sub type: {0}", null, pkgType210);
+                        break;
+                    }
                 }
 
                 break;
@@ -195,6 +201,40 @@ public async ValueTask Incoming(ProtocolEvent e)
                         }
                         break;
                     }
+                    case Event0x2DCSubType.SubType16 when messageEvent.MsgPush.CommonMessage.MessageBody.MsgContent is { } content:
+                    {
+                        var reader = new BinaryPacket(content);
+                        // group uin and 1 byte
+                        reader.Skip(4 + 1);
+                        var proto = reader.ReadBytes(Prefix.Int16 | Prefix.LengthOnly);
+                        var body = ProtoHelper.Deserialize<NotifyMessageBody>(proto);
+
+                        switch ((Event0x2DCSubType16SubType)body.SubType)
+                        {
+                            case Event0x2DCSubType16SubType.GroupReactionNotice:
+                            {
+                                var reaction = body.Reaction.Data.Data;
+
+                                long @operator = context.CacheContext.ResolveUin(reaction.Data.OperatorUid);
+
+                                context.EventInvoker.PostEvent(new BotGroupReactionEvent(
+                                    body.GroupUin,
+                                    reaction.Target.Sequence,
+                                    @operator,
+                                    reaction.Data.Type == 1,
+                                    reaction.Data.Code,
+                                    reaction.Data.CurrentCount
+                                ));
+                                break;
+                            }
+                            default:
+                            {
+                                context.LogWarning(nameof(PushLogic), "Unknown 0x2DCSub16 sub type: {0}", null, body.SubType);
+                                break;
+                            }
+                        }
+                        break;
+                    }
                     default:
                     {
                         context.LogWarning(nameof(PushLogic), "Unknown 0x2DC sub type: {0}", null, pkgType);
@@ -244,14 +284,11 @@ private enum Event0x2DCSubType
         GroupGreyTipNotice20 = 20,
     }
 
-    private enum Event0x2DCSubType16Field13
+    private enum Event0x2DCSubType16SubType
     {
-        GroupMemberSpecialTitleNotice = 6,
-        GroupNameChangeNotice = 12,
-        GroupTodoNotice = 23,
         GroupReactionNotice = 35,
     }
-    
+
     private enum Event0x210SubType
     {
         FriendRequestNotice = 35,

Lagrange.Core/Internal/Packets/Notify/GroupReaction.cs

@@ -35,7 +35,7 @@ internal partial class GroupReactionData3
 {
     [ProtoMember(1)] public string Code { get; set; }
 
-    [ProtoMember(3)] public uint Count { get; set; }
+    [ProtoMember(3)] public uint CurrentCount { get; set; }
 
     [ProtoMember(4)] public string OperatorUid { get; set; }
 

Lagrange.Core/Internal/Packets/Notify/NotifyMessageBody.cs

@@ -7,15 +7,15 @@ namespace Lagrange.Core.Internal.Packets.Notify;
 [ProtoPackable]
 internal partial class NotifyMessageBody
 {
-    [ProtoMember(1)] public uint Type { get; set; }
+    [ProtoMember(1)] public uint NotifyType { get; set; }
 
     [ProtoMember(4)] public long GroupUin { get; set; }
 
     [ProtoMember(5)] public byte[]? EventParam { get; set; }
 
     [ProtoMember(11)] public GroupRecall Recall { get; set; }
 
-    [ProtoMember(13)] public uint? Field13 { get; set; }
+    [ProtoMember(13)] public uint SubType { get; set; }
 
     [ProtoMember(21)] public string OperatorUid { get; set; }