Refactoring; kleine Erweiterungen für Rechnungsberechnung

diff --git a/SL/DB/Helper/PriceTaxCalculator.pm b/SL/DB/Helper/PriceTaxCalculator.pm
index ac262f1..9706d02 100644 (file)
--- a/SL/DB/Helper/PriceTaxCalculator.pm
+++ b/SL/DB/Helper/PriceTaxCalculator.pm
@@ -7,95 +7,131 @@ our @EXPORT = qw(calculate_prices_and_taxes);
 
 use Carp;
 use List::Util qw(sum);
+use SL::DB::Default;
 use SL::DB::PriceFactor;
 use SL::DB::Unit;
 
 sub calculate_prices_and_taxes {
-  my ($self) = @_;
+  my ($self, %params) = @_;
 
   my $is_sales            = $self->can('customer') && $self->customer;
+  my $is_invoice          = (ref($self) =~ /Invoice/) || $params{invoice};
 
   my %units_by_name       = map { ( $_->name => $_ ) } @{ SL::DB::Manager::Unit->get_all        };
   my %price_factors_by_id = map { ( $_->id   => $_ ) } @{ SL::DB::Manager::PriceFactor->get_all };
   my %taxes_by_chart_id   = ();
+  my %amounts_by_chart_id = ();
+
+  my %data = ( lastcost_total      => 0,
+               invoicediff         => 0,
+               units_by_name       => \%units_by_name,
+               price_factors_by_id => \%price_factors_by_id,
+               taxes_by_chart_id   => \%taxes_by_chart_id,
+               amounts_by_chart_id => \%amounts_by_chart_id,
+               exchangerate        => undef,
+             );
+
+  if (($self->curr || '') ne SL::DB::Default->get_default_currency) {
+    $data{exchangerate}   = $::form->check_exchangerate(\%::myconfig, $self->curr, $self->transdate, $is_sales ? 'buy' : 'sell');
+    $data{exchangerate} ||= $params{exchangerate};
+  }
+  $data{exchangerate} ||= 1;
 
   $self->netamount(  0);
   $self->marge_total(0);
-  my $lastcost_total = 0;
 
   my $idx = 0;
-
   foreach my $item ($self->items) {
     $idx++;
+    _calculate_item($self, $item, $idx, \%data);
+  }
 
-    my $part_unit  = $units_by_name{ $item->part->unit };
-    my $item_unit  = $units_by_name{ $item->unit       };
+  my $tax_sum = sum map { _round($_, 2) } values %taxes_by_chart_id;
 
-    croak("Undefined unit " . $item->part->unit) if !$part_unit;
-    croak("Undefined unit " . $item->unit)       if !$item_unit;
+  $self->amount(       _round($self->netamount + $tax_sum, 2));
+  $self->netamount(    _round($self->netamount,            2));
+  $self->marge_percent($self->netamount ? ($self->netamount - $data{lastcost_total}) * 100 / $self->netamount : 0);
 
-    $item->base_qty($item_unit->convert_to($item->qty, $part_unit));
+  return $self unless wantarray;
+  return ( self    => $self,
+           taxes   => \%taxes_by_chart_id,
+           amounts => \%amounts_by_chart_id,
+         );
+}
 
-    my $num_dec   = num_decimal_places($item->sellprice);
-    my $discount  = round($item->sellprice * ($item->discount || 0), $num_dec);
-    my $sellprice = round($item->sellprice - $discount,              $num_dec);
+sub _calculate_item {
+  my ($self, $item, $idx, $data) = @_;
 
-    $item->price_factor(      ! $item->price_factor_obj   ? 1 : ($item->price_factor_obj->factor   || 1));
-    $item->marge_price_factor(! $item->part->price_factor ? 1 : ($item->part->price_factor->factor || 1));
-    my $linetotal = round($sellprice * $item->qty / $item->price_factor, 2);
+  my $part_unit  = $data->{units_by_name}->{ $item->part->unit };
+  my $item_unit  = $data->{units_by_name}->{ $item->unit       };
 
-    if (!$linetotal) {
-      $item->marge_total(  0);
-      $item->marge_percent(0);
+  croak("Undefined unit " . $item->part->unit) if !$part_unit;
+  croak("Undefined unit " . $item->unit)       if !$item_unit;
 
-    } else {
-      my $lastcost = ! ($item->lastcost * 1) ? ($item->part->lastcost || 0) : $item->lastcost;
+  $item->base_qty($item_unit->convert_to($item->qty, $part_unit));
 
-      $item->marge_total(  $linetotal - $lastcost / $item->marge_price_factor);
-      $item->marge_percent($item->marge_total * 100 / $linetotal);
+  my $num_dec   = _num_decimal_places($item->sellprice);
+  my $discount  = _round($item->sellprice * ($item->discount || 0), $num_dec);
+  my $sellprice = _round($item->sellprice - $discount,              $num_dec);
 
-      $self->marge_total(  $self->marge_total + $item->marge_total);
-      $lastcost_total += $lastcost;
-    }
+  $item->price_factor(      ! $item->price_factor_obj   ? 1 : ($item->price_factor_obj->factor   || 1));
+  $item->marge_price_factor(! $item->part->price_factor ? 1 : ($item->part->price_factor->factor || 1));
+  my $linetotal = _round($sellprice * $item->qty / $item->price_factor, 2) * $data->{exchangerate};
+  $linetotal    = _round($linetotal,                                    2);
 
-    my $taxkey     = $item->part->get_taxkey(date => $self->transdate, is_sales => $is_sales, taxzone => $self->taxzone_id);
-    my $tax_rate   = $taxkey->tax->rate;
-    my $tax_amount = undef;
+  $data->{invoicediff} += $sellprice * $item->qty * $data->{exchangerate} / $item->price_factor - $linetotal;
 
-    if ($self->taxincluded) {
-      $tax_amount = $linetotal * $tax_rate / ($tax_rate + 1);
-      $sellprice  = $sellprice             / ($tax_rate + 1);
+  if (!$linetotal) {
+    $item->marge_total(  0);
+    $item->marge_percent(0);
 
-    } else {
-      $tax_amount = $linetotal * $tax_rate;
-    }
+  } else {
+    my $lastcost = ! ($item->lastcost * 1) ? ($item->part->lastcost || 0) : $item->lastcost;
+
+    $item->marge_total(  $linetotal - $lastcost / $item->marge_price_factor);
+    $item->marge_percent($item->marge_total * 100 / $linetotal);
 
-    $taxes_by_chart_id{ $taxkey->chart_id } ||= 0;
-    $taxes_by_chart_id{ $taxkey->chart_id }  += $tax_amount;
+    $self->marge_total(  $self->marge_total + $item->marge_total);
+    $data->{lastcost_total} += $lastcost;
+  }
+
+  my $taxkey     = $item->part->get_taxkey(date => $self->transdate, is_sales => $data->{is_sales}, taxzone => $self->taxzone_id);
+  my $tax_rate   = $taxkey->tax->rate;
+  my $tax_amount = undef;
 
-    $self->netamount($self->netamount + $sellprice * $item->qty / $item->price_factor);
+  if ($self->taxincluded) {
+    $tax_amount = $linetotal * $tax_rate / ($tax_rate + 1);
+    $sellprice  = $sellprice             / ($tax_rate + 1);
 
-    $::lxdebug->message(0, "CALCULATE! ${idx} i.qty " . $item->qty . " i.sellprice " . $item->sellprice . " sellprice $sellprice taxamount $tax_amount " .
-                        "i.linetotal $linetotal netamount " . $self->netamount . " marge_total " . $item->marge_total . " marge_percent " . $item->marge_percent);
+  } else {
+    $tax_amount = $linetotal * $tax_rate;
   }
 
-  my $tax_sum = sum map { round($_, 2) } values %taxes_by_chart_id;
+  $data->{taxes_by_chart_id}->{ $taxkey->chart_id } ||= 0;
+  $data->{taxes_by_chart_id}->{ $taxkey->chart_id }  += $tax_amount;
 
-  $self->amount(       round($self->netamount + $tax_sum, 2));
-  $self->netamount(    round($self->netamount,            2));
-  $self->marge_percent($self->netamount ? ($self->netamount - $lastcost_total) * 100 / $self->netamount : 0);
+  $self->netamount($self->netamount + $sellprice * $item->qty / $item->price_factor);
 
-  return $self unless wantarray;
-  return ( self  => $self,
-           taxes => \%taxes_by_chart_id,
-         );
+  my $chart = $item->part->get_chart(type => $data->{is_sales} ? 'income' : 'expense', taxzone => $self->taxzone_id);
+  $data->{amounts_by_chart_id}->{$chart->id} += $linetotal;
+
+  if ($data->{is_invoice}) {
+    if ($item->part->is_assembly) {
+      # process_assembly()...
+    } else {
+      # cogs...
+    }
+  }
+
+  $::lxdebug->message(0, "CALCULATE! ${idx} i.qty " . $item->qty . " i.sellprice " . $item->sellprice . " sellprice $sellprice taxamount $tax_amount " .
+                      "i.linetotal $linetotal netamount " . $self->netamount . " marge_total " . $item->marge_total . " marge_percent " . $item->marge_percent);
 }
 
-sub round {
+sub _round {
   return $::form->round_amount(@_);
 }
 
-sub num_decimal_places {
+sub _num_decimal_places {
   return length( (split(/\./, '' . shift, 2))[1] || '' );
 }
 
@@ -163,6 +199,11 @@ The object itself.
 A hash reference with the calculated taxes. The keys are chart IDs,
 the values the calculated taxes.
 
+=item C<amounts>
+
+A hash reference with the calculated amounts. The keys are chart IDs,
+the values the calculated amounts.
+
 =back
 
 =back