package LIMS::Controller::Roles::PatientDemographics;
use IO::All;
use Moose::Role;
use Data::Dumper;
use Text::CSV_XS;
use DateTime::HiRes;
use Sys::SigAction qw( timeout_call ); # for PDS service
use lib '/home/raj/perl-lib'; # PDS classes
# PDS::* classes generated using SOAP::WSDL function:
# wsdl2perl.pl -b lib -p PDS:: file:RenalWebService.wsdl.xml
use PDS::Interfaces::PatientInterface::PatientInterfaceSoap; # SOAP::WSDL classes
sub get_pds_data {
my ($self, $patient) = @_; # hashref (with DoB = DT)
my $messages = $self->messages('demographics');
my $config = $self->cfg('settings');
my $pds = PDS::Interfaces::PatientInterface::PatientInterfaceSoap->new();
$pds->set_proxy($config->{pds_proxy})if $ENV{DEVEL_SERVER}; # dev server can't find 'regint'
=begin # alternate method - doesn't work
use SOAP::WSDL::Client;
my $urn = 'urn:Leeds-Renal.service/'
. 'LTH.Renal.BusinessService.RenalWebService.GetPatientDetails';
my %method = (
soap_action => $urn,
operation => 'GetPatientDetails',
style => 'document',
use => 'literal',
);
my @parts = %h; warn Dumper \@parts;
my $soap = SOAP::WSDL::Client->new({ proxy => $config->{pds_proxy} });
my $result2 = $soap->call( \%method, [] ); warn Dumper $result2;
=cut
my ($result, $t0, $t1);
{ # get PDS result inside a Sys::SigAction::timeout_call - normal alarm/eval/die doesn't work with $pds
my $ref = $self->_format_patient_details($patient); # warn Dumper $ref;
my $sub = sub {
$t0 = DateTime::HiRes->now;
$result = $pds->GetPatientDetails($ref);
$t1 = DateTime::HiRes->now;
};
# Sys::SigAction::timeout_call( $duration, sub ):
if ( timeout_call( 10, $sub ) ) {
my %args = ( ErrorCode => $messages->{pds_timeout} );
return \%args;
}
} # warn Dumper $result; # PDS::Elements::GetPatientDetailsResponse object
=begin # normal alarm/eval/die doesn't work
eval { # in case we're in off-line testing mode
local $SIG{ALRM} = sub { die $messages->{pds_timeout} . "\n" }; # NB \n required
# create data structure from $patient to hand to PDS:
my $args = $self->_process_patient_details($patient); # warn Dumper $args;
alarm 10;
# while (1) {} # this triggers timeout, PDS offline doesn't - why ?? does $pds use alarm ??
$result = $pds->GetPatientDetails($args); # warn Dumper $result;
alarm 0; # warn Dumper $result; # PDS::Elements::GetPatientDetailsResponse object
};
return $@ if $@;
# return $result if not $result; # see docs for reasons for stupid syntax
=cut
# parse PDS return:
my $data = $self->_process_pds_response($result); # warn Dumper $data;
# check if PDS details match supplied patient details (adds 'demographics_verified' flag):
if ( ref $data eq 'HASH' && $data->{ErrorCode} eq 'SMSP-0000' ) { # if PDS returned success
my %args = ( pds => $data, patient => $patient );
$self->_check_demographic_details(\%args);
}
$self->_logger($t0, $t1, $patient, $data);
return $data;
}
# log performance of SMS:
sub _logger {
my ($self, $t0, $t1, $patient, $result) = @_;
# duration of SMS/PDS/RIE query:
my $tdiff = sprintf '%.1f', $t1->hires_epoch - $t0->hires_epoch;
# common fields:
my @fields = qw(last_name first_name gender nhs_number);
my @data = (
$t0->datetime,
$self->authen->username, # user id
@{$patient}{@fields}, # common patient fields
$patient->{dob}->ymd, # patient dob
@{$result}{@fields, qw(dob ErrorCode)}, # common result fields, dob + outcome
$tdiff, # SMS query duration
);
# write to logfile:
my $log = $self->cfg('path_to_app_root') . '/logs/sms.csv';
my $csv = Text::CSV_XS->new({ binary => 1, eol => $/ });
$csv->combine(@data);
io($log)->append($csv->string);
}
#-------------------------------------------------------------------------------
# checks PDS return fields against original patient fields and adds demographics_verified flag:
sub _check_demographic_details {
my ($self, $args) = @_; # warn Dumper $args;
my $patient = $args->{patient}; # original patient data (dob = DT)
my $pds = $args->{pds}; # PDS return
my @fields = qw(last_name first_name gender nhs_number dob);
my $i = 0; # starts 0
$i += ( lc $pds->{$_} eq lc $patient->{$_} ) for @fields; # dob will fail, so:
# check patient dob DT object against PDS string:
$i += ( $pds->{dob} eq $patient->{dob}->ymd ); # warn $i;
# add 'demographics_verified' flag - true if $matches same number as fields:
$pds->{demographics_verified} = ( $i == @fields );
}
#-------------------------------------------------------------------------------
# create a data structure to hand to the PDS:
sub _format_patient_details {
my ($self, $patient) = @_; # warn Dumper $patient; # hashref (with dob = DT)
my %h = ( # mandatory fields:
Surname => $patient->{last_name},
Gender => 0, # default, maybe updated below
DOB => '19000101', # default, maybe updated below
);
# reformat $H{DOB} as yyyymmdd if supplied (mandatory field so should be):
if ( my $dob = $patient->{dob} ) { # DT object
$h{DOB} = $dob->ymd(''); # string, no spaces
}
# update $h{Gender} with numerical index:
if ( my $gender = $patient->{gender} ) {
my %o = ( M => 1, F => 2 ); # 'U' will retain default 0
$h{Gender} = $o{$gender} if $o{$gender}; # update default unknown 0 if M/F
}
# add optional fields:
$h{NHSNumber} = $patient->{nhs_number} if $patient->{nhs_number};
$h{Forename} = $patient->{first_name} if $patient->{first_name};
$h{Postcode} = $patient->{post_code} if $patient->{post_code};
# add user ID for audit:
$h{VitalDataUserID} = 'HMDS-' . $self->user_profile->{id}; # warn Dumper \%h;
return \%h;
}
#-------------------------------------------------------------------------------
sub _process_pds_response {
my ($self, $pds) = @_; # PDS::Elements::GetPatientDetailsResponse object
my $messages = $self->messages('demographics');
return $messages->{pds_no_xml} unless $pds;
=begin # using as_hash_ref() on $pds object directly now
my @args = (
ForceArray => 0, # force nested elements to be represented as arrays
KeyAttr => '', # don't need it, but required by :strict
SuppressEmpty => undef, # default empty is {}, displayed as HASHREF by tt
);
my $ref = XMLin($pds, @args); warn Dumper $ref; return 1;
my $patient = $ref->{GetPatientDetailsResult}; # warn Dumper $patient; # hashref
=cut
# can call serialize() on $pds to get xml, or as_hash_ref():
my $ref = $pds->as_hash_ref; # warn Dumper $ref;
my $result = $ref->{GetPatientDetailsResult}; # warn Dumper $patient; # hashref
=begin # don't need to return early as tt tests for ErrorCode anwyay
{ # return 'error code' unless SMSP-0000 (success)
my $pds_return_codes = $self->get_yaml_file('pds_return_codes'); # warn Dumper $pds_return_codes;
my $code = $result->{ErrorCode};
my $outcome = $pds_return_codes->{$code};
return $result unless lc $outcome eq 'success'; # single hash value = ErrorCode
}
=cut
# reformat DoB (yyyymmdd) as yyyy-mm-dd:
if ( $result->{DoB} ) {
$result->{DoB} =~ s/(\d{4})(\d{2})(\d{2})/$1-$2-$3/;
} # warn Dumper $patient;
# decode PDS Gender:
if ( my $gender = $result->{Gender} ) {
my %o = ( 0 => 'U', 1 => 'M', 2 => 'F' );
$result->{Gender} = $o{$gender};
}
my %data = (
prefix => $result->{Prefix},
first_name => $result->{GivenName1},
last_name => $result->{FamilyName},
nhs_number => $result->{NHSNumber},
post_code => $result->{HomePostCode},
gender => $result->{Gender},
dob => $result->{DoB},
);
# only include middle name if > 1 char:
$data{middle_name} = $result->{GivenName2}
if $result->{GivenName2} && length $result->{GivenName2} > 1;
# create $data{home_address} attr from HomeAddr1 .. HomeAddr5 components:
if ( grep $result->{'HomeAddr'.$_}, 1 .. 5 ) {
my $str = join ', ',
map $result->{'HomeAddr'.$_},
grep $result->{'HomeAddr'.$_},
(1 .. 5); # empty field is {}, or undef if using SuppressEmpty
$data{home_address} = $str;
}
# include PDS error-code for tt; key = same as PDS return:
$data{ErrorCode} = $result->{ErrorCode};
return \%data;
}
1;
