package RequestForm::DB;

use Moo;
use FindBin qw($Bin);
use Data::Dumper::Concise;

use lib '/home/raj/perl-lib';
use Local::DB;

has dbix => ( is => 'lazy' ); # returns DBIx::Simple object
sub _build_dbix { Local::DB->dbix('hilis4') }

sub save_params {
    my $self = shift;
    my $vars = shift; # warn Dumper $vars;
    
    # get field names from request_form table:
    my $cols = $self->get_cols('request_form'); # warn Dumper $cols;    
    my %h = map +($_ => $vars->{$_}), @$cols; # warn Dumper \%h;

    my $db = $self->dbix();
    $db->insert('request_form', \%h);
}

sub search_patient {
    my ($self, $nhs_number) = @_;
    
    my $db = $self->dbix();
    my $data = $db->select('patients', '*', { nhs_number => $nhs_number })->hash;
    return $data;
}

sub get_referral_sources {
    my $self = shift;
    my $str  = shift; # part of referral_location (string)
    
    my $db = $self->dbix();

    # get id of referral_types for hospital:
    $db->select('referral_types', 'id', { description => 'hospital' })
        ->into(my $ref_type_id);

    my @cols = qw(id display_name organisation_code);
    my %args = (
        referral_type_id => $ref_type_id,
        display_name => { rlike => $str },
        is_active    => 'yes',
    );

    my $vars = $db->select('referral_sources', \@cols, \%args )->hashes; # warn Dumper $vars;
    return $vars;
}

sub get_cols {
	my ($self, $table) = @_;
	
	my $meta = $self->get_meta($table); # warn Dumper $meta;	
	return [ keys %$meta ];
}

sub get_meta {
	my ($self, $table) = @_;
	
	my $dbh = $self->dbix;
	
	my $t = $dbh->query("show columns from $table")->hashes; # warn Dumper $t;
	
	my %meta = map { $_->{field} => $_ } @$t; # warn Dumper \%meta;	
	return \%meta;
}

1;