use billing;

delimiter ;;
drop function get_billing_profile_by_contract_id_network;;
create function get_billing_profile_by_contract_id_network(
  _contract_id int(11),
  _epoch decimal(13,3),
  _ip varchar(46)
) returns int(11)
deterministic reads sql data
begin

  declare _effective_start_date decimal(13,3);
  declare _cbpn_id,_profile_id int(11);
  declare _network_bytes varbinary(16);
  declare _is_valid_ip,_is_ipv6 boolean default false;

  if _contract_id is null or _epoch is null then
    return null;
  end if;
  set _network_bytes = inet6_aton(_ip);
  set _is_valid_ip = if(_network_bytes is null or hex(_network_bytes) = "00000000",0,1);
  set _is_ipv6 = if(locate(".",_ip) = 0,1,0);

  set _effective_start_date = (select max(cbpns.effective_start_time) from billing.contracts_billing_profile_network_schedule cbpns join
    billing.contracts_billing_profile_network cbpn on cbpn.id = cbpns.profile_network_id
    left join billing.billing_networks bn on cbpn.billing_network_id = bn.id
    left join billing.billing_network_blocks bnb on bn.id = bnb.network_id
    where cbpn.contract_id = _contract_id and cbpns.effective_start_time <= _epoch
    and ((_is_valid_ip and if(_is_ipv6,bnb._ipv6_net_from <= _network_bytes and bnb._ipv6_net_to >= _network_bytes,
    bnb._ipv4_net_from <= _network_bytes and bnb._ipv4_net_to >= _network_bytes)) or cbpn.billing_network_id is null));

  if _effective_start_date is null then
    set _cbpn_id = (billing.get_billing_profile_by_contract_id(_contract_id,_epoch));
  else
    set _cbpn_id = (select cbpn.id from billing.contracts_billing_profile_network_schedule cbpns join
      billing.contracts_billing_profile_network cbpn on cbpn.id = cbpns.profile_network_id
      left join billing.billing_networks bn on cbpn.billing_network_id = bn.id
      left join billing.billing_network_blocks bnb on bn.id = bnb.network_id
      where cbpn.contract_id = _contract_id and cbpns.effective_start_time = _effective_start_date
      and ((_is_valid_ip and if(_is_ipv6,bnb._ipv6_net_from <= _network_bytes and bnb._ipv6_net_to >= _network_bytes,
      bnb._ipv4_net_from <= _network_bytes and bnb._ipv4_net_to >= _network_bytes)) or cbpn.billing_network_id is null)
      order by cbpn.billing_network_id desc limit 1);
  end if;

  set _profile_id = (select billing_profile_id from billing.contracts_billing_profile_network where id = _cbpn_id);

  return _profile_id;

end;;

delimiter ;