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package SL::TransNumber;

use strict;

use parent qw(Rose::Object);

use Carp;
use List::MoreUtils qw(any none);
use SL::DBUtils;
use SL::PrefixedNumber;
use SL::DB;
use SL::DB::DeliveryOrder::TypeData;

use Rose::Object::MakeMethods::Generic
(
scalar => [ qw(type id number save dbh dbh_provided business_id) ],
);

my @SUPPORTED_TYPES = (
qw(invoice invoice_for_advance_payment final_invoice credit_note customer vendor sales_delivery_order purchase_delivery_order sales_order purchase_order sales_quotation request_quotation part service assembly assortment letter),
@{ SL::DB::DeliveryOrder::TypeData::valid_types() },
);

sub new {
my $class = shift;
my $self = $class->SUPER::new(@_);

croak "Invalid type " . $self->type if none { $_ eq $self->type } @SUPPORTED_TYPES;

$self->dbh_provided($self->dbh);
$self->dbh(SL::DB->client->dbh) if !$self->dbh;
$self->save(1) unless defined $self->save;
$self->business_id(undef) if $self->type ne 'customer';

return $self;
}

sub _get_filters {
my $self = shift;

my $type = $self->type;
my %filters = ( where => '' );

if (any { $_ eq $type } qw(invoice invoice_for_advance_payment final_invoice credit_note)) {
$filters{trans_number} = "invnumber";
$filters{numberfield} = $type eq 'credit_note' ? "cnnumber" : "invnumber";
$filters{table} = "ar";

} elsif (any { $_ eq $type } qw(customer vendor)) {
$filters{trans_number} = "${type}number";
$filters{numberfield} = "${type}number";
$filters{table} = $type;

} elsif ($type =~ /_delivery_order$/ && SL::DB::DeliveryOrder::TypeData::is_valid_type($type)) {
$filters{trans_number} = SL::DB::DeliveryOrder::TypeData::get3($type, 'properties', 'nr_key'),
$filters{numberfield} = SL::DB::DeliveryOrder::TypeData::get3($type, 'properties', 'transnumber'),
$filters{table} = "delivery_orders";
$filters{where} = "order_type = ?";
$filters{values} = [ $::form->{type} ];

} elsif ($type =~ /_order$/) {
$filters{trans_number} = "ordnumber";
$filters{numberfield} = $type eq 'sales_order' ? "sonumber" : "ponumber";
$filters{table} = "oe";
$filters{where} = 'NOT COALESCE(quotation, FALSE)';
$filters{where} .= $type =~ /^sales/ ? ' AND (customer_id IS NOT NULL)' : ' AND (vendor_id IS NOT NULL)';

} elsif ($type =~ /_quotation$/) {
$filters{trans_number} = "quonumber";
$filters{numberfield} = $type eq 'sales_quotation' ? "sqnumber" : "rfqnumber";
$filters{table} = "oe";
$filters{where} = 'COALESCE(quotation, FALSE)';
$filters{where} .= $type =~ /^sales/ ? ' AND (customer_id IS NOT NULL)' : ' AND (vendor_id IS NOT NULL)';

} elsif ($type =~ /^(part|service|assembly|assortment)$/) {
$filters{trans_number} = "partnumber";
my %numberfield_hash = ( service => 'servicenumber',
assembly => 'assemblynumber',
assortment => 'assortmentnumber',
part => 'articlenumber'
);
$filters{numberfield} = $numberfield_hash{$type};
$filters{table} = "parts";
} elsif ($type =~ /letter/) {
$filters{trans_number} = "letternumber";
$filters{numberfield} = "letternumber";
$filters{table} = "letter";
}

return %filters;
}

sub is_unique {
my $self = shift;

return undef if !$self->number;

my %filters = $self->_get_filters();

my @where;
my @values = ($self->number);

push @where, $filters{where} if $filters{where};
push @values, @{ $filters{values} } if $filters{values};

if ($self->id) {
push @where, qq|id <> ?|;
push @values, conv_i($self->id);
}

my $where_str = @where ? ' AND ' . join(' AND ', map { "($_)" } @where) : '';
my $query = <<SQL;
SELECT $filters{trans_number}
FROM $filters{table}
WHERE ($filters{trans_number} = ?)
$where_str
LIMIT 1
SQL
my ($existing_number) = selectfirst_array_query($main::form, $self->dbh, $query, @values);

return $existing_number ? 0 : 1;
}

sub create_unique {
my $self = shift;

my $form = $main::form;
my %filters = $self->_get_filters();
my $number;

SL::DB->client->with_transaction(sub {
my $where = $filters{where} ? ' WHERE ' . $filters{where} : '';
my $query = <<SQL;
SELECT DISTINCT $filters{trans_number}, 1 AS in_use
FROM $filters{table}
$where
SQL

do_query($form, $self->dbh, "LOCK TABLE " . $filters{table}) || die $self->dbh->errstr;
my %numbers_in_use = selectall_as_map($form, $self->dbh, $query, $filters{trans_number}, 'in_use', @{ $filters{values} // [] });

my $business_number;
($business_number) = selectfirst_array_query($form, $self->dbh, qq|SELECT customernumberinit FROM business WHERE id = ? FOR UPDATE|, $self->business_id) if $self->business_id;
$number = $business_number;
($number) = selectfirst_array_query($form, $self->dbh, qq|SELECT $filters{numberfield} FROM defaults FOR UPDATE|) if !$number;
if ($filters{numberfield} eq 'assemblynumber' and length($number) < 1) {
$filters{numberfield} = 'articlenumber';
($number) = selectfirst_array_query($form, $self->dbh, qq|SELECT $filters{numberfield} FROM defaults FOR UPDATE|) if !$number;
}
$number ||= '';
my $sequence = SL::PrefixedNumber->new(number => $number);

do {
$number = $sequence->get_next;
} while ($numbers_in_use{$number});

if ($self->save) {
if ($self->business_id && $business_number) {
do_query($form, $self->dbh, qq|UPDATE business SET customernumberinit = ? WHERE id = ?|, $number, $self->business_id);
} else {
do_query($form, $self->dbh, qq|UPDATE defaults SET $filters{numberfield} = ?|, $number);
}
}

1;
}) or do { die SL::DB->client->error };

return $number;
}

1;
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