public async Task AcceptInvitation(Guid invitee, int invitationId)
{
//get invitation
var invitation = await _planInvitationRepository.GetInvitation(invitationId);
if (invitation?.InviteeId != invitee)
{
throw new Exception("Cannot accept invitation");
}
var isSuccessful = await _travelPlanService.AddTravelerAsync(invitation.TravelPlanId, invitee);
if (isSuccessful)
{
await _planInvitationRepository.DeleteInvitation(invitation);
}
}
