+ $dbh->commit or die $dbh->errstr if $oldAutoCommit;
+ ''; #no error
+}
+
+=item calculate_taxes LINEITEMREF TAXHASHREF INVOICE_TIME
+
+This is a weird one. Perhaps it should not even be exposed.
+
+Generates tax line items (see L<FS::cust_bill_pkg>) for this customer.
+Usually used internally by bill method B<bill>.
+
+If there is an error, returns the error, otherwise returns reference to a
+list of line items suitable for insertion.
+
+=over 4
+
+=item LINEITEMREF
+
+An array ref of the line items being billed.
+
+=item TAXHASHREF
+
+A strange beast. The keys to this hash are internal identifiers consisting
+of the name of the tax object type, a space, and its unique identifier ( e.g.
+ 'cust_main_county 23' ). The values of the hash are listrefs. The first
+item in the list is the tax object. The remaining items are either line
+items or floating point values (currency amounts).
+
+The taxes are calculated on this entity. Calculated exemption records are
+transferred to the LINEITEMREF items on the assumption that they are related.
+
+Read the source.
+
+=item INVOICE_TIME
+
+This specifies the date appearing on the associated invoice. Some
+jurisdictions (i.e. Texas) have tax exemptions which are date sensitive.
+
+=back
+
+=cut
+sub calculate_taxes {
+ my ($self, $cust_bill_pkg, $taxlisthash, $invoice_time) = @_;
+
+ my @tax_line_items = ();
+
+ warn "having a look at the taxes we found...\n" if $DEBUG > 2;
+
+ # keys are tax names (as printed on invoices / itemdesc )
+ # values are listrefs of taxlisthash keys (internal identifiers)
+ my %taxname = ();
+
+ # keys are taxlisthash keys (internal identifiers)
+ # values are (cumulative) amounts
+ my %tax = ();
+
+ # keys are taxlisthash keys (internal identifiers)
+ # values are listrefs of cust_bill_pkg_tax_location hashrefs
+ my %tax_location = ();
+
+ # keys are taxlisthash keys (internal identifiers)
+ # values are listrefs of cust_bill_pkg_tax_rate_location hashrefs
+ my %tax_rate_location = ();
+
+ foreach my $tax ( keys %$taxlisthash ) {
+ my $tax_object = shift @{ $taxlisthash->{$tax} };
+ warn "found ". $tax_object->taxname. " as $tax\n" if $DEBUG > 2;
+ warn " ". join('/', @{ $taxlisthash->{$tax} } ). "\n" if $DEBUG > 2;
+ my $hashref_or_error =
+ $tax_object->taxline( $taxlisthash->{$tax},
+ 'custnum' => $self->custnum,
+ 'invoice_time' => $invoice_time
+ );
+ return $hashref_or_error unless ref($hashref_or_error);
+
+ unshift @{ $taxlisthash->{$tax} }, $tax_object;
+
+ my $name = $hashref_or_error->{'name'};
+ my $amount = $hashref_or_error->{'amount'};
+
+ #warn "adding $amount as $name\n";
+ $taxname{ $name } ||= [];
+ push @{ $taxname{ $name } }, $tax;
+
+ $tax{ $tax } += $amount;
+
+ $tax_location{ $tax } ||= [];
+ if ( $tax_object->get('pkgnum') || $tax_object->get('locationnum') ) {
+ push @{ $tax_location{ $tax } },
+ {
+ 'taxnum' => $tax_object->taxnum,
+ 'taxtype' => ref($tax_object),
+ 'pkgnum' => $tax_object->get('pkgnum'),
+ 'locationnum' => $tax_object->get('locationnum'),
+ 'amount' => sprintf('%.2f', $amount ),
+ };
+ }
+
+ $tax_rate_location{ $tax } ||= [];
+ if ( ref($tax_object) eq 'FS::tax_rate' ) {
+ my $taxratelocationnum =
+ $tax_object->tax_rate_location->taxratelocationnum;
+ push @{ $tax_rate_location{ $tax } },
+ {
+ 'taxnum' => $tax_object->taxnum,
+ 'taxtype' => ref($tax_object),
+ 'amount' => sprintf('%.2f', $amount ),
+ 'locationtaxid' => $tax_object->location,
+ 'taxratelocationnum' => $taxratelocationnum,
+ };
+ }
+
+ }
+
+ #move the cust_tax_exempt_pkg records to the cust_bill_pkgs we will commit
+ my %packagemap = map { $_->pkgnum => $_ } @$cust_bill_pkg;
+ foreach my $tax ( keys %$taxlisthash ) {
+ foreach ( @{ $taxlisthash->{$tax} }[1 ... scalar(@{ $taxlisthash->{$tax} })] ) {
+ next unless ref($_) eq 'FS::cust_bill_pkg';
+
+ push @{ $packagemap{$_->pkgnum}->_cust_tax_exempt_pkg },
+ splice( @{ $_->_cust_tax_exempt_pkg } );
+ }
+ }
+