public async Task <InviteMemberResult> InviteMember(string groupId, string userId)
{
var currentUser = await profileService.GetCurrentUser();
var group = await database.GroupRepository.FindById(groupId) ??
throw new EntityNotFoundException("Group not found");
if (currentUser.Id == userId)
{
throw new NoPermissionsException("You are not allowed to invite yourself to this group");
}
if (!InviteMemberPermissionSmartEnum.FromValue((int)group.InviteMemberPermission)
.ValidatePermission(currentUser.Id, group))
{
throw new NoPermissionsException("You are not allowed to invite members in this group");
}
if (IsUserGroupMemberSpecification.Create(userId).IsSatisfied(group))
{
throw new DuplicateException("This user is currently member of this group");
}
var member = GroupMember.Create(userId, groupId);
var memberInvite = GroupInvite.Create(userId, groupId, isInvited: true);
database.GroupMemberRepository.Add(member);
group.GroupInvites.Add(memberInvite);
if (await database.Complete())
{
await notifier.Push(NotificationMessages.GroupInvitedNotification(group.Name), userId,
NotificationType.GroupInvited);
return(new InviteMemberResult(member, memberInvite));
}
return(null);
}