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#!/usr/bin/perl

=begin -------------------------------------------------------------------------
emails .csv list of new Hodgkin diagnoses, or any previous Hodgkin diagnosis
changed to something else, over specified duration, for LTH & Bradford Hospitals,
to Blood Bank contacts - can be set to test mode using $JUST_TESTING
=cut ---------------------------------------------------------------------------

use strict;
use warnings;

my $JUST_TESTING = 0; # email to ra.jones only

############ recipients from contacts.lib ######################################
my @recipients = qw( terrence.haines david.beale raj.secure );
my $duration = 7; # over past number of days
################################################################################

use lib '/home/raj/perl5/lib/perl5';
use Data::Dumper;

use FindBin qw($Bin); # warn $Bin;
use lib $Bin . '/../../../lib';
use LIMS::Local::ScriptHelpers;

# get tools from LIMS::Local::ScriptHelpers:
my $tools = LIMS::Local::ScriptHelpers->new();
$tools->test_only($JUST_TESTING);

#-------------------------------------------------------------------------------
my $date     = $tools->time_now->dmy;
my $filename = 'hodgkin.csv';
my $subject  = "New/amended Hodgkin lymphomas for week ending $date";

# csv file headers:
my @headers = qw(LastName FirstName DoB PatientID NHSNumber Location Diagnosis);
# fields for formatting data in _process_data():
my @fields = qw(last_name first_name dob unit_number nhs_number location diagnosis);
#-------------------------------------------------------------------------------

my $sql_lib  = $tools->sql_lib();
my $config   = $tools->config(); 
my $dbix     = $tools->dbix();

my @rows;
{ # new hodgkin cases:
    my $query = $sql_lib->retr('hodgkin');
    
    my $result = $dbix->query($query, $duration);    
    
    while (my $ref = $result->hash) { # warn Dumper $vars; next;
        my $row = _process_data($ref);
        push @rows, $row;
    }
}
{ # get cases which have diagnoses revised to other than hodgkin:
    my $query = $sql_lib->retr('ex-hodgkin');
    
    my $result = $dbix->query($query, $duration);    
    
    while (my $ref = $result->hash) { # warn Dumper $vars; next;
        my $row = _process_data($ref);
        push @rows, $row;
    }
}

my %mail = (		
	subject => $subject,
	config  => $config,
); # warn Dumper \%mail; # next;

if (@rows) { # send attachment:
	# add headers to beginning of @rows:
	unshift @rows, join ',', @headers;	
	my $content = join "\n", @rows;
	
	$mail{attachment} = $content;
	$mail{filename}   = $filename;
}
else { # send message:
	$mail{message} = "no new Hodgkin diagnoses for week ending $date\n";
	
    my $script_name = $tools->script_filename;
    print "$script_name: no new Hodgkin diagnoses for week ending $date\n";
}

$tools->send_mail(\%mail, \@recipients);

sub _process_data {
    my $data = shift; # warn Dumper $data;
    
    # get rid of csv field delimiters and ensure no undef's:
    map { $data->{$_} =~ s/\,//g } qw(location diagnosis);
    map { $data->{$_} ||= ''     } qw(dob nhs_number);
    # case transform:
    $data->{first_name} = ucfirst $data->{first_name};
    $data->{last_name}  = uc $data->{last_name};
    # join data fields: 
    my $row = join ',', @{$data}{@fields};
    return $row;
}