first commit

service/group/logic/force_delete_member.go

@@ -0,0 +1,77 @@
+package logic
+
+import (
+	"context"
+	"gitlab.33.cn/chat/dtalk/service/group/model/biz"
+
+	pb "gitlab.33.cn/chat/dtalk/service/group/api"
+
+	"gitlab.33.cn/chat/dtalk/service/group/service"
+)
+
+type ForceDeleteMemberLogic struct {
+	ctx context.Context
+	svc *service.Service
+}
+
+func NewForceDeleteMemberLogic(ctx context.Context, svc *service.Service) *ForceDeleteMemberLogic {
+	return &ForceDeleteMemberLogic{
+		ctx: ctx,
+		svc: svc,
+	}
+}
+
+// ForceDeleteMember 一个人退出一个群
+func (l *ForceDeleteMemberLogic) ForceDeleteMember(req *pb.ForceDeleteMemberReq) (*pb.ForceDeleteMemberResp, error) {
+	groupId := req.GroupId
+	memberId, err := FilteredMemberId(req.MemberId)
+	if err != nil {
+		return nil, err
+	}
+
+	// 判断群是否存在
+	group, err := l.svc.GetGroupInfoByGroupId(l.ctx, groupId)
+	if err != nil {
+		return nil, err
+	}
+
+	// 判断这个人是否在群里
+	deleteMember, err := l.svc.GetMemberByMemberIdAndGroupId(l.ctx, memberId, groupId)
+	if err != nil {
+		return nil, err
+	}
+
+	members, err := l.svc.GetGroupMembersByGroupIdWithLimit(group.GroupId, 0, 2)
+	if err != nil {
+		return nil, err
+	}
+
+	// 如果退群的人是群主
+	if group.GroupOwnerId == deleteMember.GroupMemberId {
+		// 如果群内有群主之外的人
+		if len(members) > 1 {
+			// 转让群主, 再到下面一起退群
+			// todo
+			err = l.svc.ChangeOwner(l.ctx, group, deleteMember, members[1])
+			if err != nil {
+				return nil, err
+			}
+		} else {
+			// 解散群
+			err = l.svc.GroupDisband(l.ctx, groupId, memberId)
+			if err != nil {
+				return nil, err
+			}
+
+			return &pb.ForceDeleteMemberResp{}, nil
+		}
+	}
+
+	// 退群
+	err = l.svc.RemoveGroupMembers(l.ctx, group, []*biz.GroupMember{deleteMember})
+	if err != nil {
+		return nil, err
+	}
+
+	return &pb.ForceDeleteMemberResp{}, nil
+}