[Core] Fetch the filtered requests simultaneously in FetchGroupRequests

Lagrange.Core/Internal/Context/Logic/Implementation/OperationLogic.cs

@@ -251,7 +251,7 @@ public async Task<bool> RecallGroupMessage(MessageChain chain)
         var events = await Collection.Business.SendEvent(fetchRequestsEvent);
         if (events.Count == 0) return null;
 
-        var resolved = ((FetchGroupRequestsEvent)events[0]).Events;
+        var resolved = events.Cast<FetchGroupRequestsEvent>().SelectMany(e => e.Events).ToList();
         var results = new List<BotGroupRequest>();
 
         foreach (var result in resolved)

Lagrange.Core/Internal/Packets/Service/Oidb/Request/OidbSvcTrpcTcp0x10C0_2.cs

@@ -0,0 +1,17 @@
+using ProtoBuf;
+
+namespace Lagrange.Core.Internal.Packets.Service.Oidb.Request;
+
+// ReSharper disable InconsistentNaming
+
+/// <summary>
+/// Fetch Friends & Group Notification filtered List
+/// </summary>
+[ProtoContract]
+[OidbSvcTrpcTcp(0x10c0, 2)]
+internal class OidbSvcTrpcTcp0x10C0_2
+{
+    [ProtoMember(1)] public uint Count { get; set; } // 20
+
+    [ProtoMember(2)] public uint Field2 { get; set; } // 0
+}

Lagrange.Core/Internal/Packets/Service/Oidb/Response/OidbSvcTrpcTcp0x10C0_1Response.cs → Lagrange.Core/Internal/Packets/Service/Oidb/Response/OidbSvcTrpcTcp0x10C0Response.cs

@@ -6,9 +6,9 @@ namespace Lagrange.Core.Internal.Packets.Service.Oidb.Response;
 #pragma warning disable CS8618
 
 [ProtoContract]
-internal class OidbSvcTrpcTcp0x10C0_1Response
+internal class OidbSvcTrpcTcp0x10C0Response
 {
-    [ProtoMember(1)] public List<OidbSvcTrpcTcp0x10C0_1ResponseRequests> Requests { get; set; }
+    [ProtoMember(1)] public List<OidbSvcTrpcTcp0x10C0ResponseRequests>? Requests { get; set; }
 
     [ProtoMember(2)] public ulong Field2 { get; set; }
 
@@ -22,37 +22,37 @@ internal class OidbSvcTrpcTcp0x10C0_1Response
 }
 
 [ProtoContract]
-internal class OidbSvcTrpcTcp0x10C0_1ResponseRequests
+internal class OidbSvcTrpcTcp0x10C0ResponseRequests
 {
     [ProtoMember(1)] public ulong Sequence { get; set; }
 
     [ProtoMember(2)] public uint EventType { get; set; } // 13 for exit group, 22 for group request
 
     [ProtoMember(3)] public uint State { get; set; } // 2 for Join, 1 for waiting for action
 
-    [ProtoMember(4)] public OidbSvcTrpcTcp0x10C0_1ResponseGroup Group { get; set; }
+    [ProtoMember(4)] public OidbSvcTrpcTcp0x10C0ResponseGroup Group { get; set; }
 
-    [ProtoMember(5)] public OidbSvcTrpcTcp0x10C0_1ResponseUser Target { get; set; }
+    [ProtoMember(5)] public OidbSvcTrpcTcp0x10C0ResponseUser Target { get; set; }
 
-    [ProtoMember(6)] public OidbSvcTrpcTcp0x10C0_1ResponseUser? Invitor { get; set; }
+    [ProtoMember(6)] public OidbSvcTrpcTcp0x10C0ResponseUser? Invitor { get; set; }
 
-    [ProtoMember(7)] public OidbSvcTrpcTcp0x10C0_1ResponseUser? Operator { get; set; }
+    [ProtoMember(7)] public OidbSvcTrpcTcp0x10C0ResponseUser? Operator { get; set; }
 
     [ProtoMember(9)] public string Field9 { get; set; }
 
     [ProtoMember(10)] public string Comment { get; set; }
 }
 
 [ProtoContract]
-internal class OidbSvcTrpcTcp0x10C0_1ResponseGroup
+internal class OidbSvcTrpcTcp0x10C0ResponseGroup
 {
     [ProtoMember(1)] public uint GroupUin { get; set; }
 
     [ProtoMember(2)] public string GroupName { get; set; } // 13 for exit group, 22 for group request
 }
 
 [ProtoContract]
-internal class OidbSvcTrpcTcp0x10C0_1ResponseUser
+internal class OidbSvcTrpcTcp0x10C0ResponseUser
 {
     [ProtoMember(1)] public string Uid { get; set; }
 

Lagrange.Core/Internal/Service/System/FetchFilteredGroupRequestsService.cs

@@ -0,0 +1,52 @@
+using Lagrange.Core.Common;
+using Lagrange.Core.Internal.Event;
+using Lagrange.Core.Internal.Event.System;
+using Lagrange.Core.Internal.Packets.Service.Oidb;
+using Lagrange.Core.Internal.Packets.Service.Oidb.Request;
+using Lagrange.Core.Internal.Packets.Service.Oidb.Response;
+using Lagrange.Core.Utility.Extension;
+using ProtoBuf;
+
+namespace Lagrange.Core.Internal.Service.System;
+
+[EventSubscribe(typeof(FetchGroupRequestsEvent))]
+[Service("OidbSvcTrpcTcp.0x10c0_2")]
+internal class FetchFilteredGroupRequestsService : BaseService<FetchGroupRequestsEvent>
+{
+    protected override bool Build(FetchGroupRequestsEvent input, BotKeystore keystore, BotAppInfo appInfo,
+        BotDeviceInfo device, out Span<byte> output, out List<Memory<byte>>? extraPackets)
+    {
+        var packet = new OidbSvcTrpcTcpBase<OidbSvcTrpcTcp0x10C0_2>(new OidbSvcTrpcTcp0x10C0_2
+        {
+            Count = 20,
+            Field2 = 0
+        });
+
+        output = packet.Serialize();
+        extraPackets = null;
+        return true;
+    }
+
+    protected override bool Parse(Span<byte> input, BotKeystore keystore, BotAppInfo appInfo, BotDeviceInfo device, out FetchGroupRequestsEvent output,
+        out List<ProtocolEvent>? extraEvents)
+    {
+        var payload = Serializer.Deserialize<OidbSvcTrpcTcpBase<OidbSvcTrpcTcp0x10C0Response>>(input);
+        var events = payload.Body.Requests?.Select(x => new FetchGroupRequestsEvent.RawEvent(
+            x.Group.GroupUin,
+            x.Invitor?.Uid,
+            x.Invitor?.Name,
+            x.Target.Uid,
+            x.Target.Name,
+            x.Operator?.Uid,
+            x.Operator?.Name,
+            x.Sequence,
+            x.State,
+            x.EventType,
+            x.Comment
+        )).ToList() ?? new List<FetchGroupRequestsEvent.RawEvent>();
+
+        output = FetchGroupRequestsEvent.Result((int)payload.ErrorCode, events);
+        extraEvents = null;
+        return true;
+    }
+}

Lagrange.Core/Internal/Service/System/FetchGroupRequestsService.cs

@@ -30,8 +30,8 @@ protected override bool Build(FetchGroupRequestsEvent input, BotKeystore keystor
     protected override bool Parse(Span<byte> input, BotKeystore keystore, BotAppInfo appInfo, BotDeviceInfo device, out FetchGroupRequestsEvent output,
         out List<ProtocolEvent>? extraEvents)
     {
-        var payload = Serializer.Deserialize<OidbSvcTrpcTcpBase<OidbSvcTrpcTcp0x10C0_1Response>>(input);
-        var events = payload.Body.Requests.Select(x => new FetchGroupRequestsEvent.RawEvent(
+        var payload = Serializer.Deserialize<OidbSvcTrpcTcpBase<OidbSvcTrpcTcp0x10C0Response>>(input);
+        var events = payload.Body.Requests?.Select(x => new FetchGroupRequestsEvent.RawEvent(
             x.Group.GroupUin,
             x.Invitor?.Uid,
             x.Invitor?.Name,
@@ -43,7 +43,7 @@ protected override bool Parse(Span<byte> input, BotKeystore keystore, BotAppInfo
             x.State,
             x.EventType,
             x.Comment
-        )).ToList();
+        )).ToList() ?? new List<FetchGroupRequestsEvent.RawEvent>();
 
         output = FetchGroupRequestsEvent.Result((int)payload.ErrorCode, events);
         extraEvents = null;