documenso/packages/lib/server-only/team/accept-team-invitation.ts

import { updateSubscriptionItemQuantity } from '@documenso/ee/server-only/stripe/update-subscription-item-quantity';
import { prisma } from '@documenso/prisma';

import { IS_BILLING_ENABLED } from '../../constants/app';
import { getTeamSeatPriceId } from '../../utils/billing';

export type AcceptTeamInvitationOptions = {
  userId: number;
  teamId: number;
};

export const acceptTeamInvitation = async ({ userId, teamId }: AcceptTeamInvitationOptions) => {
  await prisma.$transaction(async (tx) => {
    const user = await tx.user.findFirstOrThrow({
      where: {
        id: userId,
      },
    });

    const teamMemberInvite = await tx.teamMemberInvite.findFirstOrThrow({
      where: {
        teamId,
        email: user.email,
      },
      include: {
        team: true,
      },
    });

    const { team } = teamMemberInvite;

    await tx.teamMember.create({
      data: {
        teamId: teamMemberInvite.teamId,
        userId: user.id,
        role: teamMemberInvite.role,
      },
    });

    await tx.teamMemberInvite.delete({
      where: {
        id: teamMemberInvite.id,
      },
    });

    if (IS_BILLING_ENABLED && team.subscriptionId) {
      const numberOfSeats = await tx.teamMember.count({
        where: {
          teamId: teamMemberInvite.teamId,
        },
      });

      await updateSubscriptionItemQuantity({
        priceId: getTeamSeatPriceId(),
        subscriptionId: team.subscriptionId,
        quantity: numberOfSeats,
      });
    }
  });
};