+}
+
+sub taxname {
+ my $self = shift;
+ if ( $self->dbdef_table->column('taxname') ) {
+ return $self->setfield('taxname', $_[0]) if @_;
+ return $self->getfield('taxname');
+ }
+ return '';
+}
+
+sub setuptax {
+ my $self = shift;
+ if ( $self->dbdef_table->column('setuptax') ) {
+ return $self->setfield('setuptax', $_[0]) if @_;
+ return $self->getfield('setuptax');
+ }
+ return '';
+}
+
+sub recurtax {
+ my $self = shift;
+ if ( $self->dbdef_table->column('recurtax') ) {
+ return $self->setfield('recurtax', $_[0]) if @_;
+ return $self->getfield('recurtax');
+ }
+ return '';
+}
+
+=item sql_taxclass_sameregion
+
+Returns an SQL WHERE fragment or the empty string to search for entries
+with different tax classes.
+
+=cut
+
+#hmm, description above could be better...
+
+sub sql_taxclass_sameregion {
+ my $self = shift;
+
+ my $same_query = 'SELECT taxclass FROM cust_main_county '.
+ ' WHERE taxnum != ? AND country = ?';
+ my @same_param = ( 'taxnum', 'country' );
+ foreach my $opt_field (qw( state county )) {
+ if ( $self->$opt_field() ) {
+ $same_query .= " AND $opt_field = ?";
+ push @same_param, $opt_field;
+ } else {
+ $same_query .= " AND $opt_field IS NULL";
+ }
+ }
+
+ my @taxclasses = $self->_list_sql( \@same_param, $same_query );
+
+ return '' unless scalar(@taxclasses);
+
+ '( taxclass IS NULL OR ( '. #only if !$self->taxclass ??
+ join(' AND ', map { 'taxclass != '.dbh->quote($_) } @taxclasses ).
+ ' ) ) ';
+}
+
+sub _list_sql {
+ my( $self, $param, $sql ) = @_;
+ my $sth = dbh->prepare($sql) or die dbh->errstr;
+ $sth->execute( map $self->$_(), @$param )
+ or die "Unexpected error executing statement $sql: ". $sth->errstr;
+ map $_->[0], @{ $sth->fetchall_arrayref };
+}
+
+=item taxline TAXABLES_ARRAYREF, [ OPTION => VALUE ... ]
+
+Returns a listref of a name and an amount of tax calculated for the list of
+packages or amounts referenced by TAXABLES_ARRAYREF. Returns a scalar error
+message on error.
+
+Options include custnum and invoice_date and are hints to this method
+
+=cut
+
+sub taxline {
+ my( $self, $taxables, %opt ) = @_;
+
+ my @exemptions = ();
+ push @exemptions, @{ $_->_cust_tax_exempt_pkg }
+ for grep { ref($_) } @$taxables;
+
+ local $SIG{HUP} = 'IGNORE';
+ local $SIG{INT} = 'IGNORE';
+ local $SIG{QUIT} = 'IGNORE';
+ local $SIG{TERM} = 'IGNORE';
+ local $SIG{TSTP} = 'IGNORE';
+ local $SIG{PIPE} = 'IGNORE';
+
+ my $oldAutoCommit = $FS::UID::AutoCommit;
+ local $FS::UID::AutoCommit = 0;
+ my $dbh = dbh;
+
+ my $name = $self->taxname || 'Tax';
+ my $amount = 0;
+
+ foreach my $cust_bill_pkg (@$taxables) {
+
+ my $cust_pkg = $cust_bill_pkg->cust_pkg;
+ my $cust_bill = $cust_pkg->cust_bill if $cust_pkg;
+ my $custnum = $cust_pkg ? $cust_pkg->custnum : $opt{custnum};
+ my $part_pkg = $cust_bill_pkg->part_pkg;
+ my $invoice_date = $cust_bill ? $cust_bill->_date : $opt{invoice_date};
+
+ my $taxable_charged = 0;
+ $taxable_charged += $cust_bill_pkg->setup
+ unless $part_pkg->setuptax =~ /^Y$/i
+ || $self->setuptax =~ /^Y$/i;
+ $taxable_charged += $cust_bill_pkg->recur
+ unless $part_pkg->recurtax =~ /^Y$/i
+ || $self->recurtax =~ /^Y$/i;
+
+ next unless $taxable_charged;
+
+ if ( $self->exempt_amount && $self->exempt_amount > 0 ) {
+ #my ($mon,$year) = (localtime($cust_bill_pkg->sdate) )[4,5];
+ my ($mon,$year) =
+ (localtime( $cust_bill_pkg->sdate || $invoice_date ) )[4,5];
+ $mon++;
+ my $freq = $part_pkg->freq || 1;
+ if ( $freq !~ /(\d+)$/ ) {
+ $dbh->rollback if $oldAutoCommit;
+ return "daily/weekly package definitions not (yet?)".
+ " compatible with monthly tax exemptions";
+ }
+ my $taxable_per_month =
+ sprintf("%.2f", $taxable_charged / $freq );
+
+ #call the whole thing off if this customer has any old
+ #exemption records...
+ my @cust_tax_exempt =
+ qsearch( 'cust_tax_exempt' => { custnum=> $custnum } );
+ if ( @cust_tax_exempt ) {
+ $dbh->rollback if $oldAutoCommit;
+ return
+ 'this customer still has old-style tax exemption records; '.
+ 'run bin/fs-migrate-cust_tax_exempt?';
+ }
+
+ foreach my $which_month ( 1 .. $freq ) {
+
+ #maintain the new exemption table now
+ my $sql = "
+ SELECT SUM(amount)
+ FROM cust_tax_exempt_pkg
+ LEFT JOIN cust_bill_pkg USING ( billpkgnum )
+ LEFT JOIN cust_bill USING ( invnum )
+ WHERE custnum = ?
+ AND taxnum = ?
+ AND year = ?
+ AND month = ?
+ ";
+ my $sth = dbh->prepare($sql) or do {
+ $dbh->rollback if $oldAutoCommit;
+ return "fatal: can't lookup exising exemption: ". dbh->errstr;
+ };
+ $sth->execute(
+ $custnum,
+ $self->taxnum,
+ 1900+$year,
+ $mon,
+ ) or do {
+ $dbh->rollback if $oldAutoCommit;
+ return "fatal: can't lookup exising exemption: ". dbh->errstr;
+ };
+ my $existing_exemption = $sth->fetchrow_arrayref->[0] || 0;
+
+ foreach ( grep { $_->taxnum == $self->taxnum &&
+ $_->month == $mon &&
+ $_->year == 1900+$year
+ } @exemptions
+ )
+ {
+ $existing_exemption += $_->amount;
+ }
+
+ my $remaining_exemption =
+ $self->exempt_amount - $existing_exemption;
+ if ( $remaining_exemption > 0 ) {
+ my $addl = $remaining_exemption > $taxable_per_month
+ ? $taxable_per_month
+ : $remaining_exemption;
+ $taxable_charged -= $addl;
+
+ my $cust_tax_exempt_pkg = new FS::cust_tax_exempt_pkg ( {
+ 'taxnum' => $self->taxnum,
+ 'year' => 1900+$year,
+ 'month' => $mon,
+ 'amount' => sprintf("%.2f", $addl ),
+ } );
+ if ($cust_bill_pkg->billpkgnum) {
+ $cust_tax_exempt_pkg->billpkgnum($cust_bill_pkg->billpkgnum);
+ my $error = $cust_tax_exempt_pkg->insert;
+ if ( $error ) {
+ $dbh->rollback if $oldAutoCommit;
+ return "fatal: can't insert cust_tax_exempt_pkg: $error";
+ }
+ }else{
+ push @exemptions, $cust_tax_exempt_pkg;
+ push @{ $cust_bill_pkg->_cust_tax_exempt_pkg }, $cust_tax_exempt_pkg;
+ } # if $cust_bill_pkg->billpkgnum
+ } # if $remaining_exemption > 0
+
+ #++
+ $mon++;
+ #until ( $mon < 12 ) { $mon -= 12; $year++; }
+ until ( $mon < 13 ) { $mon -= 12; $year++; }
+
+ } #foreach $which_month
+
+ } #if $tax->exempt_amount
+
+ $taxable_charged = sprintf( "%.2f", $taxable_charged);
+
+ $amount += $taxable_charged * $self->tax / 100
+ }
+
+ $dbh->commit or die $dbh->errstr if $oldAutoCommit;
+
+ return {
+ 'name' => $name,
+ 'amount' => $amount,
+ };