- if (abs($absumsatz) > 0.01) {
- push @errors, "Datev-Export fehlgeschlagen! Bei Transaktion $trans->[0]->{trans_id} ($absumsatz)\n";
+ my $idx = 0;
+ my $correction = 0;
+ our @taxed; # most likely defunct
+ while (abs($absumsatz) >= 0.01) {
+ if ($idx >= scalar @taxed) {
+ last if (!$correction);
+
+ $correction = 0;
+ $idx = 0;
+ }
+
+ my $transaction = $taxed[$idx]->[0];
+
+ my $old_amount = $transaction->{amount};
+ my $old_correction = $correction;
+ my @possible_diffs;
+
+ if (!$transaction->{diff}) {
+ @possible_diffs = (0.01, -0.01);
+ } else {
+ @possible_diffs = ($transaction->{diff});
+ }
+
+ foreach my $diff (@possible_diffs) {
+ my $net_amount = $form->round_amount(($transaction->{amount} + $diff) / $transaction->{tax_rate}, 2);
+ next if ($net_amount != $transaction->{net_amount});
+
+ $transaction->{diff} = $diff;
+ $transaction->{amount} += $diff;
+ $transaction->{umsatz} += $diff;
+ $absumsatz -= $diff;
+ $correction = 1;
+
+ last;
+ }
+
+ $idx++;
+ }
+
+ if (abs($absumsatz) >= 0.01) {
+ push @errors, "Datev-Export fehlgeschlagen! Bei Transaktion $trans->[0]->{trans_id} ($absumsatz, Rundungsfehler $rounding_error)\n";