use provisioning;

set autocommit=0;

-- tmp table holding priority 0 CF destinations
drop table if exists tmp_cf_map;
create table tmp_cf_map (
  id int(11) unsigned not null auto_increment primary key,
  subscriber_id int(11) unsigned not null,
  type enum('cfu', 'cft', 'cfb', 'cfna') not null default 'cfu',
  destination varchar(255) not null,
  key tidx(type)
) engine=innodb;

-- fetch topmost CFUs
insert into tmp_cf_map (subscriber_id, type, destination) 
  select m.subscriber_id, m.type, d.destination from voip_cf_destinations d, 
  voip_cf_destination_sets s, voip_cf_mappings m, voip_usr_preferences p, 
  voip_preferences vp 
  where vp.attribute = 'cfu' and m.type = 'cfu' and p.attribute_id = vp.id 
  and p.value = m.id and m.destination_set_id = s.id 
  and p.subscriber_id = s.subscriber_id and d.destination_set_id = s.id 
  and d.priority = 0 
  group by m.subscriber_id;

-- fetch topmost CFBs
insert into tmp_cf_map (subscriber_id, type, destination) 
  select m.subscriber_id, m.type, d.destination from voip_cf_destinations d, 
  voip_cf_destination_sets s, voip_cf_mappings m, voip_usr_preferences p, 
  voip_preferences vp 
  where vp.attribute = 'cfb' and m.type = 'cfb' and p.attribute_id = vp.id 
  and p.value = m.id and m.destination_set_id = s.id 
  and p.subscriber_id = s.subscriber_id and d.destination_set_id = s.id 
  and d.priority = 0 
  group by m.subscriber_id;

-- fetch topmost CFTs
insert into tmp_cf_map (subscriber_id, type, destination) 
  select m.subscriber_id, m.type, d.destination from voip_cf_destinations d, 
  voip_cf_destination_sets s, voip_cf_mappings m, voip_usr_preferences p, 
  voip_preferences vp 
  where vp.attribute = 'cft' and m.type = 'cft' and p.attribute_id = vp.id 
  and p.value = m.id and m.destination_set_id = s.id 
  and p.subscriber_id = s.subscriber_id and d.destination_set_id = s.id 
  and d.priority = 0 
  group by m.subscriber_id;

-- fetch topmost CFNAs
insert into tmp_cf_map (subscriber_id, type, destination) 
  select m.subscriber_id, m.type, d.destination from voip_cf_destinations d, 
  voip_cf_destination_sets s, voip_cf_mappings m, voip_usr_preferences p, 
  voip_preferences vp 
  where vp.attribute = 'cfna' and m.type = 'cfna' and p.attribute_id = vp.id 
  and p.value = m.id and m.destination_set_id = s.id 
  and p.subscriber_id = s.subscriber_id and d.destination_set_id = s.id 
  and d.priority = 0 
  group by m.subscriber_id;

-- now get rid of existing CF preferences
delete up.* from voip_usr_preferences up, voip_preferences p 
  where p.attribute in ('cfu', 'cfb', 'cfna', 'cft') 
  and up.attribute_id = p.id;

-- and change back the settings to the old ones
update voip_preferences set type=0, data_type='string', internal=0, read_only=0, max_occur=1,
  description='E.164 number or complete SIP URI. "Call forward unconditional" - if set, all incoming calls are forwarded to this destination. E.164 numbers have to be fully qualified and may be prefixed by a plus sign. E.164 numbers specified in SIP URIs have to be prefixed by a plus sign if they are fully qualified but they must always carry the subscriber\'s own domain, like in "sip:+<E.164number>@<subscriber.domain>".'
  where attribute='cfu';

update voip_preferences set type=0, data_type='string', internal=0, read_only=0, max_occur=1,
  description='E.164 number or complete SIP URI. "Call forward busy" - if set, all incoming calls are forwarded to this destination while the subscriber is on a call. Same syntax as for "cfu".'
  where attribute='cfb';

update voip_preferences set type=0, data_type='string', internal=0, read_only=0, max_occur=1,
  description='E.164 number or complete SIP URI. "Call forward not available" - if set, all incoming calls are forwarded to this destination if the subscriber is not online and registered. Same syntax as for "cfu".'
  where attribute='cfna';

update voip_preferences set type=0, data_type='string', internal=0, read_only=0, max_occur=1,
  description='E.164 number or complete SIP URI. "Call forward timeout" - if set, all incoming calls are forwarded to this destination after a timeout that can be set via "ringtimeout" below. Same syntax as for "cfu".'
  where attribute='cft';

-- finally copy over the vars from the tmp table and drop it
insert into voip_usr_preferences(subscriber_id, attribute_id, value) select t.subscriber_id, p.id, t.destination from tmp_cf_map t, voip_preferences p where t.type = p.attribute;

drop table tmp_cf_map;

-- clean up after us, just in case
delete from voip_cf_mappings;
delete from voip_cf_time_sets;
delete from voip_cf_destination_sets;
delete from voip_cf_destinations;
delete from voip_cf_periods;

commit;
set autocommit=1;