[Core & Milky] Implement quit_group (LagrangeDev#16)

Author: Szzrain

Lagrange.Core/Common/Interface/MessageExt.cs

@@ -55,4 +55,7 @@ public static Task GroupMemberRename(this BotContext context, long groupUin, lon
 
     public static Task GroupRename(this BotContext context, long groupUin, string name)
         => context.EventContext.GetLogic<OperationLogic>().GroupRename(groupUin, name);
+    
+    public static Task GroupQuit(this BotContext context, long groupUin)
+        => context.EventContext.GetLogic<OperationLogic>().GroupQuit(groupUin);
 }

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

@@ -0,0 +1,11 @@
+namespace Lagrange.Core.Internal.Events.System;
+
+internal class GroupQuitEventReq(long groupUin) : ProtocolEvent
+{
+    public long GroupUin { get; } = groupUin;
+}
+
+internal class GroupQuitEventResp : ProtocolEvent
+{
+    public static readonly GroupQuitEventResp Default = new();
+}

Lagrange.Core/Internal/Logic/OperationLogic.cs

@@ -52,6 +52,11 @@ public async Task GroupMemberRename(long groupUin, long targetUin, string name)
         }
         await context.EventContext.SendEvent<GroupMemberRenameEventResp>(new GroupMemberRenameEventReq(groupUin, uid, name));
     }
+    
+    public async Task GroupQuit(long groupUin)
+    {
+        await context.EventContext.SendEvent<GroupQuitEventResp>(new GroupQuitEventReq(groupUin));
+    }
 
     public async Task<string> GroupFSDownload(long groupUin, string fileId)
     {

Lagrange.Core/Internal/Packets/Service/Oidb_0x1097.cs

@@ -0,0 +1,14 @@
+using Lagrange.Proto;
+
+namespace Lagrange.Core.Internal.Packets.Service;
+
+#pragma warning disable CS8618
+
+[ProtoPackable]
+internal partial class D1097ReqBody
+{
+    [ProtoMember(1)] public long GroupCode { get; set; }
+}
+
+[ProtoPackable]
+internal partial class D1097RspBody;

Lagrange.Core/Internal/Services/System/GroupQuitService.cs

@@ -0,0 +1,28 @@
+using Lagrange.Core.Common;
+using Lagrange.Core.Internal.Events;
+using Lagrange.Core.Internal.Events.System;
+using Lagrange.Core.Internal.Packets.Service;
+
+namespace Lagrange.Core.Internal.Services.System;
+
+[EventSubscribe<GroupQuitEventReq>(Protocols.All)]
+[Service("OidbSvcTrpcTcp.0x1097_1")]
+internal class GroupQuitService: OidbService<GroupQuitEventReq, GroupQuitEventResp, D1097ReqBody, D1097RspBody>
+{
+    private protected override uint Command => 0x1097;
+
+    private protected override uint Service => 1;
+
+    private protected override Task<D1097ReqBody> ProcessRequest(GroupQuitEventReq request, BotContext context)
+    {
+        return Task.FromResult(new D1097ReqBody
+        {
+            GroupCode = request.GroupUin
+        });
+    }
+
+    private protected override Task<GroupQuitEventResp> ProcessResponse(D1097RspBody response, BotContext context)
+    {
+        return Task.FromResult(GroupQuitEventResp.Default);
+    }
+}

Lagrange.Milky/Api/Handler/Group/QuitGroupHandler.cs

@@ -0,0 +1,23 @@
+using System.Text.Json.Serialization;
+using Lagrange.Core;
+using Lagrange.Core.Common.Interface;
+
+namespace Lagrange.Milky.Api.Handler.Group;
+
+[Api("quit_group")]
+public class QuitGroupHandler(BotContext bot) : IEmptyResultApiHandler<QuitGroupParameter>
+{
+    private readonly BotContext _bot = bot;
+
+    public async Task HandleAsync(QuitGroupParameter parameter, CancellationToken token)
+    {
+        await _bot.GroupQuit(parameter.GroupId);
+    }
+}
+
+public class QuitGroupParameter(long groupId)
+{
+    [JsonRequired]
+    [JsonPropertyName("group_id")]
+    public long GroupId { get; init; } = groupId;
+}

Lagrange.Milky/Utility/JsonUtility.cs

@@ -81,6 +81,8 @@ public static partial class JsonUtility
     [JsonSerializable(typeof(SetGroupMemberCardParameter))]
     // set_group_member_special_title
     [JsonSerializable(typeof(SetGroupMemberSpecialTitleParameter))]
+    // quit_group
+    [JsonSerializable(typeof(QuitGroupParameter))]
     // == file ==
     // upload_group_file
     [JsonSerializable(typeof(UploadGroupFileParameter))]