X-Git-Url: http://wagnertech.de/git?a=blobdiff_plain;f=SL%2FDB%2FHelper%2FPriceTaxCalculator.pm;h=cadc096766950195e6828890d2ec9f81af689158;hb=a4bbff925a569d6a901dcd49d0a5121503165173;hp=026322d2c67cb790d0513c0e01cb51ab0f91dda2;hpb=529e6feb7d1ceb388822957e9efd1b919edd5e97;p=kivitendo-erp.git

diff --git a/SL/DB/Helper/PriceTaxCalculator.pm b/SL/DB/Helper/PriceTaxCalculator.pm
index 026322d2c..cadc09676 100644
--- a/SL/DB/Helper/PriceTaxCalculator.pm
+++ b/SL/DB/Helper/PriceTaxCalculator.pm
@@ -3,10 +3,10 @@ package SL::DB::Helper::PriceTaxCalculator;
 use strict;
 
 use parent qw(Exporter);
-our @EXPORT = qw(calculate_prices_and_taxes);
+our @EXPORT = qw(calculate_prices_and_taxes _calculate_item);
 
 use Carp;
-use List::Util qw(sum min);
+use List::Util qw(sum min max);
 
 sub calculate_prices_and_taxes {
   my ($self, %params) = @_;
@@ -19,7 +19,7 @@ sub calculate_prices_and_taxes {
   require SL::DB::PriceFactor;
   require SL::DB::Unit;
 
-  SL::DB::Part->load_cached(map { $_->parts_id } @{ $self->items });
+  SL::DB::Part->load_cached(map { $_->parts_id } @{ $self->items }) if @{ $self->items || [] };
 
   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 };
@@ -37,9 +37,18 @@ sub calculate_prices_and_taxes {
                exchangerate        => undef,
                is_sales            => $self->can('customer') && $self->customer,
                is_invoice          => (ref($self) =~ /Invoice/) || $params{invoice},
+               items               => [ ],
              );
 
-  _get_exchangerate($self, \%data, %params);
+  # set exchangerate in $data>{exchangerate}
+  if ( ref($self) eq 'SL::DB::Order' ) {
+    # orders store amount in the order currency
+    $data{exchangerate} = 1;
+  } else {
+    # invoices store amount in the default currency
+    _get_exchangerate($self, \%data, %params);
+    # $data{exchangerate} = $self->exchangerate; # untested alternative for setting exchangerate
+  };
 
   $self->netamount(  0);
   $self->marge_total(0);
@@ -47,7 +56,7 @@ sub calculate_prices_and_taxes {
   SL::DB::Manager::Chart->cache_taxkeys(date => $self->transdate);
 
   my $idx = 0;
-  foreach my $item ($self->items) {
+  foreach my $item (@{ $self->items_sorted }) {
     $idx++;
     _calculate_item($self, $item, $idx, \%data, %params);
   }
@@ -56,7 +65,7 @@ sub calculate_prices_and_taxes {
 
   return $self unless wantarray;
 
-  return map { ($_ => $data{$_}) } qw(taxes amounts amounts_cogs allocated exchangerate assembly_items);
+  return map { ($_ => $data{$_}) } qw(taxes amounts amounts_cogs allocated exchangerate assembly_items items rounding);
 }
 
 sub _get_exchangerate {
@@ -74,40 +83,41 @@ sub _calculate_item {
   my ($self, $item, $idx, $data, %params) = @_;
 
   my $part       = SL::DB::Part->load_cached($item->parts_id);
+  return unless $part;
+
   my $part_unit  = $data->{units_by_name}->{ $part->unit };
   my $item_unit  = $data->{units_by_name}->{ $item->unit };
 
   croak("Undefined unit " . $part->unit) if !$part_unit;
-  croak("Undefined unit " . $item->unit)       if !$item_unit;
+  croak("Undefined unit " . $item->unit) if !$item_unit;
 
   $item->base_qty($item_unit->convert_to($item->qty, $part_unit));
   $item->fxsellprice($item->sellprice) if $data->{is_invoice};
 
-  my $num_dec   = _num_decimal_places($item->sellprice) || 2;
-  #  ^ we need at least 2 decimal places                   ^
-  # my test case 43.00 € with 0 decimal places and 0.5 discount ->
-  # : sellprice before:43.00000
-  # : num dec   before:0
-  # : discount / sellprice ratio:  22  /  21
-  # : discount = 43 * 0.5 _round(21.5, 0) = 22
-  # TODO write a test case
-  my $discount  = _round($item->sellprice * ($item->discount || 0), $num_dec);
-  my $sellprice = _round($item->sellprice - $discount,              $num_dec);
+  my $num_dec   = max 2, _num_decimal_places($item->sellprice);
+
+  $item->discount(0) if !$item->discount;
+
+  # don't include rounded discount into sellprice for calculation
+  # any time the sellprice is multiplied with qty discount has to be considered as part of the multiplication
+  my $sellprice = $item->sellprice;
 
   $item->price_factor(      ! $item->price_factor_obj   ? 1 : ($item->price_factor_obj->factor   || 1));
   $item->marge_price_factor(! $part->price_factor ? 1 : ($part->price_factor->factor || 1));
-  my $linetotal = _round($sellprice * $item->qty / $item->price_factor, 2) * $data->{exchangerate};
-  $linetotal    = _round($linetotal,                                    2);
+  my $linetotal = _round($sellprice * (1 - $item->discount) * $item->qty / $item->price_factor, 2) * $data->{exchangerate};
+  $linetotal    = _round($linetotal,                                                            2);
 
-  $data->{invoicediff} += $sellprice * $item->qty * $data->{exchangerate} / $item->price_factor - $linetotal if $self->taxincluded;
+  $data->{invoicediff} += $sellprice * (1 - $item->discount) * $item->qty * $data->{exchangerate} / $item->price_factor - $linetotal if $self->taxincluded;
+
+  my $linetotal_cost = 0;
 
   if (!$linetotal) {
     $item->marge_total(  0);
     $item->marge_percent(0);
 
   } else {
-    my $lastcost       = ! ($item->lastcost * 1) ? ($part->lastcost || 0) : $item->lastcost;
-    my $linetotal_cost = _round($lastcost * $item->qty / $item->marge_price_factor, 2);
+    my $lastcost       = !(($item->lastcost // 0) * 1) ? ($part->lastcost || 0) : $item->lastcost;
+    $linetotal_cost    = _round($lastcost * $item->qty / $item->marge_price_factor, 2);
 
     $item->marge_total(  $linetotal - $linetotal_cost);
     $item->marge_percent($item->marge_total * 100 / $linetotal);
@@ -135,8 +145,6 @@ sub _calculate_item {
     die "tax_amount != 0 but no chart_id for taxkey " . $taxkey->id . " tax " . $taxkey->tax->id;
   }
 
-  $self->netamount($self->netamount + $sellprice * $item->qty / $item->price_factor);
-
   my $chart = $part->get_chart(type => $data->{is_sales} ? 'income' : 'expense', taxzone => $self->taxzone_id);
   $data->{amounts}->{ $chart->id }           ||= { taxkey => $taxkey->taxkey_id, tax_id => $taxkey->tax_id, amount => 0 };
   $data->{amounts}->{ $chart->id }->{amount}  += $linetotal;
@@ -153,6 +161,16 @@ sub _calculate_item {
 
   $data->{last_incex_chart_id} = $chart->id if $data->{is_sales};
 
+  my $item_sellprice = _round($sellprice * (1 - $item->discount), $num_dec);
+
+  push @{ $data->{items} }, {
+    linetotal      => $linetotal,
+    linetotal_cost => $linetotal_cost,
+    sellprice      => $item_sellprice,
+    tax_amount     => $tax_amount,
+    taxkey_id      => $taxkey->id,
+  };
+
   _dbg("CALCULATE! ${idx} i.qty " . $item->qty . " i.sellprice " . $item->sellprice . " sellprice $sellprice num_dec $num_dec taxamount $tax_amount " .
        "i.linetotal $linetotal netamount " . $self->netamount . " marge_total " . $item->marge_total . " marge_percent " . $item->marge_percent);
 }
@@ -167,6 +185,8 @@ sub _calculate_amounts {
     $data->{taxes}->{$chart_id}  = $rounded;
   }
 
+  $self->netamount(sum map { $_->{amount} } values %{ $data->{amounts} });
+
   my $amount    = _round(($self->netamount + $tax_diff) * $data->{exchangerate}, 2);
   my $diff      = $amount - ($self->netamount + $tax_diff) * $data->{exchangerate};
   my $netamount = $amount;
@@ -179,10 +199,13 @@ sub _calculate_amounts {
   _dbg("Sna " . $self->netamount . " idiff " . $data->{invoicediff} . " tdiff ${tax_diff}");
 
   my $tax              = sum values %{ $data->{taxes} };
-  $data->{arap_amount} = $netamount + $tax;
+  $amount              = $netamount + $tax;
+  my $grossamount      = _round($amount, 2, 1);
+  $data->{rounding}    = _round($grossamount - $amount, 2);
+  $data->{arap_amount} = $grossamount;
 
   $self->netamount(    $netamount);
-  $self->amount(       $netamount + $tax);
+  $self->amount(       $grossamount);
   $self->marge_percent($self->netamount ? ($self->netamount - $data->{lastcost_total}) * 100 / $self->netamount : 0);
 }
 
@@ -227,7 +250,7 @@ sub _calculate_part_item {
 
     next unless $qty;
 
-    my $linetotal = _round(($entry->sellprice * $qty) / $base_factor, 2);
+    my $linetotal = _round(($entry->sellprice * (1 - $entry->discount) * $qty) / $base_factor, 2);
 
     $data->{amounts_cogs}->{ $expense_income_chart->id } -= $linetotal;
     $data->{amounts_cogs}->{ $inventory_chart->id      } += $linetotal;
@@ -345,6 +368,24 @@ column. Only valid for invoices.
 
 The exchangerate used for the calculation.
 
+=item C<items>
+
+An array reference. For each line item this array contains a hash ref
+entry with additional values that have been calculated for that item
+but that aren't stored in the item object itself. These include
+C<linetotal>, C<linetotal_cost>, C<sellprice>, C<tax_amount> and
+C<taxkey_id>.
+
+The items are stored in the same order the items are stored in the
+object that L</calculate_prices_and_taxes> has been called on.
+
+For example:
+
+  my $invoice     = SL::DB::Invoice->new(id => 12345)->load;
+  my %data        = $invoice->calculate_prices_and_taxes;
+
+  print "line total of second item: " . $data{items}->[1]->{linetotal};
+
 =back
 
 =back