package FS::svc_phone;

use strict;
use base qw( FS::svc_Domain_Mixin FS::location_Mixin FS::svc_Common );
use vars qw( $DEBUG $me @pw_set $conf $phone_name_max );
use Data::Dumper;
use Scalar::Util qw( blessed );
use FS::Conf;
use FS::Record qw( qsearch qsearchs dbh );
use FS::Msgcat qw(gettext);
use FS::part_svc;
use FS::phone_device;
use FS::svc_pbx;
use FS::svc_domain;
use FS::cust_location;

$me = '[' . __PACKAGE__ . ']';
$DEBUG = 0;

#avoid l 1 and o O 0
@pw_set = ( 'a'..'k', 'm','n', 'p-z', 'A'..'N', 'P'..'Z' , '2'..'9' );

#ask FS::UID to run this stuff for us later
$FS::UID::callback{'FS::svc_acct'} = sub { 
  $conf = new FS::Conf;
  $phone_name_max = $conf->config('svc_phone-phone_name-max_length');
};

=head1 NAME

FS::svc_phone - Object methods for svc_phone records

=head1 SYNOPSIS

  use FS::svc_phone;

  $record = new FS::svc_phone \%hash;
  $record = new FS::svc_phone { 'column' => 'value' };

  $error = $record->insert;

  $error = $new_record->replace($old_record);

  $error = $record->delete;

  $error = $record->check;

  $error = $record->suspend;

  $error = $record->unsuspend;

  $error = $record->cancel;

=head1 DESCRIPTION

An FS::svc_phone object represents a phone number.  FS::svc_phone inherits
from FS::Record.  The following fields are currently supported:

=over 4

=item svcnum

primary key

=item countrycode

=item phonenum

=item sip_password

=item pin

Voicemail PIN

=item phone_name

=item pbxsvc

Optional svcnum from svc_pbx

=back

=head1 METHODS

=over 4

=item new HASHREF

Creates a new phone number.  To add the number to the database, see L<"insert">.

Note that this stores the hash reference, not a distinct copy of the hash it
points to.  You can ask the object for a copy with the I<hash> method.

=cut

# the new method can be inherited from FS::Record, if a table method is defined
#
sub table_info {
  {
    'name' => 'Phone number',
    'sorts' => 'phonenum',
    'display_weight' => 60,
    'cancel_weight'  => 80,
    'fields' => {
        'countrycode'  => { label => 'Country code',
                            type  => 'text',
                            disable_inventory => 1,
                            disable_select => 1,
                          },
        'phonenum'     => 'Phone number',
        'pin'          => { label => 'Personal Identification Number',
                            type  => 'text',
                            disable_inventory => 1,
                            disable_select => 1,
                          },
        'sip_password' => 'SIP password',
        'phone_name'   => 'Name',
        'pbxsvc'       => { label => 'PBX',
                            type  => 'select-svc_pbx.html',
                            disable_inventory => 1,
                            disable_select => 1, #UI wonky, pry works otherwise
                          },
        'domsvc'    => {
                         label     => 'Domain',
                         type      => 'select',
                         select_table => 'svc_domain',
                         select_key   => 'svcnum',
                         select_label => 'domain',
                         disable_inventory => 1,
                       },
        'locationnum' => {
                           label => 'E911 location',
                           disable_inventory => 1,
                           disable_select    => 1,
                         },
    },
  };
}

sub table { 'svc_phone'; }

sub table_dupcheck_fields { ( 'countrycode', 'phonenum' ); }

=item search_sql STRING

Class method which returns an SQL fragment to search for the given string.

=cut

sub search_sql {
  my( $class, $string ) = @_;

  if ( $conf->exists('svc_phone-allow_alpha_phonenum') ) {
    $string =~ s/\W//g;
  } else {
    $string =~ s/\D//g;
  }

  my $conf = new FS::Conf;
  my $ccode = (    $conf->exists('default_phone_countrycode')
                && $conf->config('default_phone_countrycode')
              )
                ? $conf->config('default_phone_countrycode') 
                : '1';

  $string =~ s/^$ccode//;

  $class->search_sql_field('phonenum', $string );
}

=item label

Returns the phone number.

=cut

sub label {
  my $self = shift;
  my $phonenum = $self->phonenum; #XXX format it better
  my $label = $phonenum;
  $label .= '@'.$self->domain if $self->domsvc;
  $label .= ' ('.$self->phone_name.')' if $self->phone_name;
  $label;
}

=item insert

Adds this phone number to the database.  If there is an error, returns the
error, otherwise returns false.

=cut

sub insert {
  my $self = shift;
  my %options = @_;

  if ( $DEBUG ) {
    warn "[$me] insert called on $self: ". Dumper($self).
         "\nwith options: ". Dumper(%options);
  }

  local $SIG{HUP} = 'IGNORE';
  local $SIG{INT} = 'IGNORE';
  local $SIG{QUIT} = 'IGNORE';
  local $SIG{TERM} = 'IGNORE';
  local $SIG{TSTP} = 'IGNORE';
  local $SIG{PIPE} = 'IGNORE';

  my $oldAutoCommit = $FS::UID::AutoCommit;
  local $FS::UID::AutoCommit = 0;
  my $dbh = dbh;

  #false laziness w/cust_pkg.pm... move this to location_Mixin?  that would
  #make it more of a base class than a mixin... :)
  if ( $options{'cust_location'}
         && ( ! $self->locationnum || $self->locationnum == -1 ) ) {
    my $error = $options{'cust_location'}->insert;
    if ( $error ) {
      $dbh->rollback if $oldAutoCommit;
      return "inserting cust_location (transaction rolled back): $error";
    }
    $self->locationnum( $options{'cust_location'}->locationnum );
  }
  #what about on-the-fly edits?  if the ui supports it?

  my $error = $self->SUPER::insert(%options);
  if ( $error ) {
    $dbh->rollback if $oldAutoCommit;
    return $error;
  }

  $dbh->commit or die $dbh->errstr if $oldAutoCommit;
  '';

}

=item delete

Delete this record from the database.

=cut

sub delete {
  my $self = shift;

  local $SIG{HUP} = 'IGNORE';
  local $SIG{INT} = 'IGNORE';
  local $SIG{QUIT} = 'IGNORE';
  local $SIG{TERM} = 'IGNORE';
  local $SIG{TSTP} = 'IGNORE';
  local $SIG{PIPE} = 'IGNORE';

  my $oldAutoCommit = $FS::UID::AutoCommit;
  local $FS::UID::AutoCommit = 0;
  my $dbh = dbh;

  foreach my $phone_device ( $self->phone_device ) {
    my $error = $phone_device->delete;
    if ( $error ) {
      $dbh->rollback if $oldAutoCommit;
      return $error;
    }
  }

  my $error = $self->SUPER::delete;
  if ( $error ) {
    $dbh->rollback if $oldAutoCommit;
    return $error;
  }

  $dbh->commit or die $dbh->errstr if $oldAutoCommit;
  '';

}

# the delete method can be inherited from FS::Record

=item replace OLD_RECORD

Replaces the OLD_RECORD with this one in the database.  If there is an error,
returns the error, otherwise returns false.

=cut

sub replace {
  my $new = shift;

  my $old = ( blessed($_[0]) && $_[0]->isa('FS::Record') )
              ? shift
              : $new->replace_old;

  my %options = @_;

  if ( $DEBUG ) {
    warn "[$me] replacing $old with $new\n".
         "\nwith options: ". Dumper(%options);
  }

  local $SIG{HUP} = 'IGNORE';
  local $SIG{INT} = 'IGNORE';
  local $SIG{QUIT} = 'IGNORE';
  local $SIG{TERM} = 'IGNORE';
  local $SIG{TSTP} = 'IGNORE';
  local $SIG{PIPE} = 'IGNORE';

  my $oldAutoCommit = $FS::UID::AutoCommit;
  local $FS::UID::AutoCommit = 0;
  my $dbh = dbh;

  #false laziness w/cust_pkg.pm... move this to location_Mixin?  that would
  #make it more of a base class than a mixin... :)
  if ( $options{'cust_location'}
         && ( ! $new->locationnum || $new->locationnum == -1 ) ) {
    my $error = $options{'cust_location'}->insert;
    if ( $error ) {
      $dbh->rollback if $oldAutoCommit;
      return "inserting cust_location (transaction rolled back): $error";
    }
    $new->locationnum( $options{'cust_location'}->locationnum );
  }
  #what about on-the-fly edits?  if the ui supports it?

  my $error = $new->SUPER::replace($old, %options);
  if ( $error ) {
    $dbh->rollback if $oldAutoCommit;
    return $error if $error;
  }

  $dbh->commit or die $dbh->errstr if $oldAutoCommit;
  ''; #no error
}

=item suspend

Called by the suspend method of FS::cust_pkg (see L<FS::cust_pkg>).

=item unsuspend

Called by the unsuspend method of FS::cust_pkg (see L<FS::cust_pkg>).

=item cancel

Called by the cancel method of FS::cust_pkg (see L<FS::cust_pkg>).

=item check

Checks all fields to make sure this is a valid phone number.  If there is
an error, returns the error, otherwise returns false.  Called by the insert
and replace methods.

=cut

# the check method should currently be supplied - FS::Record contains some
# data checking routines

sub check {
  my $self = shift;

  my $conf = new FS::Conf;

  my $phonenum = $self->phonenum;
  my $phonenum_check_method;
  if ( $conf->exists('svc_phone-allow_alpha_phonenum') ) {
    $phonenum =~ s/\W//g;
    $phonenum_check_method = 'ut_alpha';
  } else {
    $phonenum =~ s/\D//g;
    $phonenum_check_method = 'ut_number';
  }
  $self->phonenum($phonenum);

  $self->locationnum('') if !$self->locationnum || $self->locationnum == -1;

  my $error = 
    $self->ut_numbern('svcnum')
    || $self->ut_numbern('countrycode')
    || $self->$phonenum_check_method('phonenum')
    || $self->ut_anything('sip_password')
    || $self->ut_numbern('pin')
    || $self->ut_textn('phone_name')
    || $self->ut_foreign_keyn('pbxsvc', 'svc_pbx',    'svcnum' )
    || $self->ut_foreign_keyn('domsvc', 'svc_domain', 'svcnum' )
    || $self->ut_foreign_keyn('locationnum', 'cust_location', 'locationnum')
  ;
  return $error if $error;

  return 'Name ('. $self->phone_name.
         ") is longer than $phone_name_max characters"
    if $phone_name_max && length($self->phone_name) > $phone_name_max;

  $self->countrycode(1) unless $self->countrycode;

  unless ( length($self->sip_password) ) {

    $self->sip_password(
      join('', map $pw_set[ int(rand $#pw_set) ], (0..16) )
    );

  }

  $self->SUPER::check;
}

=item _check duplicate

Internal method to check for duplicate phone numers.

=cut

#false laziness w/svc_acct.pm's _check_duplicate.
sub _check_duplicate {
  my $self = shift;

  my $global_unique = $conf->config('global_unique-phonenum') || 'none';
  return '' if $global_unique eq 'disabled';

  $self->lock_table;

  my @dup_ccphonenum =
    grep { !$self->svcnum || $_->svcnum != $self->svcnum }
    qsearch( 'svc_phone', {
      'countrycode' => $self->countrycode,
      'phonenum'    => $self->phonenum,
    });

  return gettext('phonenum_in_use')
    if $global_unique eq 'countrycode+phonenum' && @dup_ccphonenum;

  my $part_svc = qsearchs('part_svc', { 'svcpart' => $self->svcpart } );
  unless ( $part_svc ) {
    return 'unknown svcpart '. $self->svcpart;
  }

  if ( @dup_ccphonenum ) {

    my $exports = FS::part_export::export_info('svc_phone');
    my %conflict_ccphonenum_svcpart = ( $self->svcpart => 'SELF', );

    foreach my $part_export ( $part_svc->part_export ) {

      #this will catch to the same exact export
      my @svcparts = map { $_->svcpart } $part_export->export_svc;

      $conflict_ccphonenum_svcpart{$_} = $part_export->exportnum
        foreach @svcparts;

    }

    foreach my $dup_ccphonenum ( @dup_ccphonenum ) {
      my $dup_svcpart = $dup_ccphonenum->cust_svc->svcpart;
      if ( exists($conflict_ccphonenum_svcpart{$dup_svcpart}) ) {
        return "duplicate phone number ".
               $self->countrycode. ' '. $self->phonenum.
               ": conflicts with svcnum ". $dup_ccphonenum->svcnum.
               " via exportnum ". $conflict_ccphonenum_svcpart{$dup_svcpart};
      }
    }

  }

  return '';

}

=item check_pin

Checks the supplied PIN against the PIN in the database.  Returns true for a
sucessful authentication, false if no match.

=cut

sub check_pin {
  my($self, $check_pin) = @_;
  length($self->pin) && $check_pin eq $self->pin;
}

=item radius_reply

=cut

sub radius_reply {
  my $self = shift;
  #XXX Session-Timeout!  holy shit, need rlm_perl to ask for this in realtime
  ();
}

=item radius_check

=cut

sub radius_check {
  my $self = shift;
  my %check = ();

  my $conf = new FS::Conf;

  $check{'User-Password'} = $conf->config('svc_phone-radius-default_password');

  %check;
}

sub radius_groups {
  ();
}

=item phone_device

Returns any FS::phone_device records associated with this service.

=cut

sub phone_device {
  my $self = shift;
  qsearch('phone_device', { 'svcnum' => $self->svcnum } );
}

#override location_Mixin version cause we want to try the cust_pkg location
#in between us and cust_main
# XXX what to do in the unlinked case???  return a pseudo-object that returns
# empty fields?
sub cust_location_or_main {
  my $self = shift;
  return $self->cust_location if $self->locationnum;
  my $cust_pkg = $self->cust_svc->cust_pkg;
  $cust_pkg ? $cust_pkg->cust_location_or_main : '';
}

=back

=head1 BUGS

=head1 SEE ALSO

L<FS::svc_Common>, L<FS::Record>, L<FS::cust_svc>, L<FS::part_svc>,
L<FS::cust_pkg>, schema.html from the base documentation.

=cut

1;