+ my $listref_or_error =
+ $self->calculate_taxes( \@cust_bill_pkg, \%taxlisthash, $invoice_time);
+
+ unless ( ref( $listref_or_error ) ) {
+ $dbh->rollback if $oldAutoCommit;
+ return $listref_or_error;
+ }
+
+ foreach my $taxline ( @$listref_or_error ) {
+ $total_setup = sprintf('%.2f', $total_setup+$taxline->setup );
+ push @cust_bill_pkg, $taxline;
+ }
+
+ #add tax adjustments
+ warn "adding tax adjustments...\n" if $DEBUG > 2;
+ foreach my $cust_tax_adjustment (
+ qsearch('cust_tax_adjustment', { 'custnum' => $self->custnum,
+ 'billpkgnum' => '',
+ }
+ )
+ ) {
+
+ my $tax = sprintf('%.2f', $cust_tax_adjustment->amount );
+
+ my $itemdesc = $cust_tax_adjustment->taxname;
+ $itemdesc = '' if $itemdesc eq 'Tax';
+
+ push @cust_bill_pkg, new FS::cust_bill_pkg {
+ 'pkgnum' => 0,
+ 'setup' => $tax,
+ 'recur' => 0,
+ 'sdate' => '',
+ 'edate' => '',
+ 'itemdesc' => $itemdesc,
+ 'itemcomment' => $cust_tax_adjustment->comment,
+ 'cust_tax_adjustment' => $cust_tax_adjustment,
+ #'cust_bill_pkg_tax_location' => \@cust_bill_pkg_tax_location,
+ };
+
+ }
+
+ my $charged = sprintf('%.2f', $total_setup + $total_recur );
+
+ my @cust_bill = $self->cust_bill;
+ my $balance = $self->balance;
+ my $previous_balance = scalar(@cust_bill)
+ ? ( $cust_bill[$#cust_bill]->billing_balance || 0 )
+ : 0;
+
+ $previous_balance += $cust_bill[$#cust_bill]->charged
+ if scalar(@cust_bill);
+ #my $balance_adjustments =
+ # sprintf('%.2f', $balance - $prior_prior_balance - $prior_charged);
+
+ #create the new invoice
+ my $cust_bill = new FS::cust_bill ( {
+ 'custnum' => $self->custnum,
+ '_date' => ( $invoice_time ),
+ 'charged' => $charged,
+ 'billing_balance' => $balance,
+ 'previous_balance' => $previous_balance,
+ 'invoice_terms' => $options{'invoice_terms'},
+ } );
+ $error = $cust_bill->insert;
+ if ( $error ) {
+ $dbh->rollback if $oldAutoCommit;
+ return "can't create invoice for customer #". $self->custnum. ": $error";
+ }
+
+ foreach my $cust_bill_pkg ( @cust_bill_pkg ) {
+ $cust_bill_pkg->invnum($cust_bill->invnum);
+ my $error = $cust_bill_pkg->insert;
+ if ( $error ) {
+ $dbh->rollback if $oldAutoCommit;
+ return "can't create invoice line item: $error";
+ }
+ }
+
+
+ foreach my $hook ( @precommit_hooks ) {
+ eval {
+ &{$hook}; #($self) ?
+ };
+ if ( $@ ) {
+ $dbh->rollback if $oldAutoCommit;
+ return "$@ running precommit hook $hook\n";
+ }
+ }
+
+ $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 = ();
+