+
+my %label_opt = ( out => 1 ); #enable 'Out of Taxable Region' label
+$label_opt{with_city} = 1 if $cgi->param('show_cities');
+$label_opt{with_district} = 1 if $cgi->param('show_districts');
+
+$label_opt{with_taxclass} = 1 if $cgi->param('show_taxclasses');
+
+my($beginning, $ending) = FS::UI::Web::parse_beginning_ending($cgi);
+
+my $join_cust = ' JOIN cust_bill USING ( invnum )
+ LEFT JOIN cust_main USING ( custnum ) ';
+
+my $join_cust_pkg = $join_cust.
+ ' LEFT JOIN cust_pkg USING ( pkgnum )
+ LEFT JOIN part_pkg USING ( pkgpart ) ';
+
+my $from_join_cust_pkg = " FROM cust_bill_pkg $join_cust_pkg ";
+
+my $with_pkgclass = $cgi->param('show_pkgclasses');
+
+# Either or both of these can be used to link cust_bill_pkg to
+# cust_main_county. This one links a taxed line item (billpkgnum) to a tax rate
+# (taxnum), and gives the amount of tax charged on that line item under that
+# rate (as tax_amount).
+my $pkg_tax = "SELECT SUM(amount) as tax_amount, taxnum, ".
+ "taxable_billpkgnum AS billpkgnum ".
+ "FROM cust_bill_pkg_tax_location JOIN cust_bill_pkg USING (billpkgnum) ".
+ "GROUP BY taxable_billpkgnum, taxnum";
+
+# This one links a tax-exempted line item (billpkgnum) to a tax rate (taxnum),
+# and gives the amount of the tax exemption. EXEMPT_WHERE should be replaced
+# with a real WHERE clause to further limit the tax exemptions that will be
+# included.
+my $pkg_tax_exempt = "SELECT SUM(amount) AS exempt_charged, billpkgnum, taxnum ".
+ "FROM cust_tax_exempt_pkg EXEMPT_WHERE GROUP BY billpkgnum, taxnum";
+
+my $where = "WHERE _date >= $beginning AND _date <= $ending ";
+# SELECT/GROUP clauses for first-level queries
+# classnum is a placeholder; they all go in one class in this case.
+my $select = "SELECT NULL AS classnum, cust_main_county.taxnum, ";
+my $group = "GROUP BY cust_main_county.taxnum";
+# SELECT/GROUP clauses for second-level (totals) queries
+my $select_all = "SELECT NULL AS classnum, ";
+my $group_all = "";
+
+if ( $with_pkgclass ) {
+ $select = "SELECT COALESCE(part_pkg.classnum,0), cust_main_county.taxnum, ";
+ $group = "GROUP BY part_pkg.classnum, cust_main_county.taxnum";
+ $select_all = "SELECT COALESCE(part_pkg.classnum,0), ";
+ $group_all = "GROUP BY COALESCE(part_pkg.classnum,0)";
+}
+
+my $agentname = '';
+if ( $cgi->param('agentnum') =~ /^(\d+)$/ ) {
+ my $agent = qsearchs('agent', { 'agentnum' => $1 } );
+ die "agent not found" unless $agent;
+ $agentname = $agent->agent;
+ $where .= ' AND cust_main.agentnum = '. $agent->agentnum;
+}
+
+my $nottax =
+ '(cust_bill_pkg.pkgnum != 0 OR cust_bill_pkg.feepart IS NOT NULL)';
+
+# one query for each column of the report
+# plus separate queries for the totals row
+my (%sql, %all_sql);
+
+# SALES QUERIES (taxable sales, all types of exempt sales)
+# -------------
+
+# general form
+my $exempt = "$select SUM(exempt_charged)
+ FROM cust_main_county
+ JOIN ($pkg_tax_exempt) AS pkg_tax_exempt
+ USING (taxnum)
+ JOIN cust_bill_pkg USING (billpkgnum)
+ $join_cust_pkg $where AND $nottax $group";
+
+my $all_exempt = "$select_all SUM(exempt_charged)
+ FROM cust_main_county
+ JOIN ($pkg_tax_exempt) AS pkg_tax_exempt
+ USING (taxnum)
+ JOIN cust_bill_pkg USING (billpkgnum)
+ $join_cust_pkg $where AND $nottax
+ $group_all";
+
+# sales to tax-exempt customers
+$sql{exempt_cust} = $exempt;
+$sql{exempt_cust} =~ s/EXEMPT_WHERE/WHERE exempt_cust = 'Y' OR exempt_cust_taxname = 'Y'/;
+$all_sql{exempt_cust} = $all_exempt;
+$all_sql{exempt_cust} =~ s/EXEMPT_WHERE/WHERE exempt_cust = 'Y' OR exempt_cust_taxname = 'Y'/;
+
+# sales of tax-exempt packages
+$sql{exempt_pkg} = $exempt;
+$sql{exempt_pkg} =~ s/EXEMPT_WHERE/WHERE exempt_setup = 'Y' OR exempt_recur = 'Y'/;
+$all_sql{exempt_pkg} = $all_exempt;
+$all_sql{exempt_pkg} =~ s/EXEMPT_WHERE/WHERE exempt_setup = 'Y' OR exempt_recur = 'Y'/;
+
+# monthly per-customer exemptions
+$sql{exempt_monthly} = $exempt;
+$sql{exempt_monthly} =~ s/EXEMPT_WHERE/WHERE exempt_monthly = 'Y'/;
+$all_sql{exempt_monthly} = $all_exempt;
+$all_sql{exempt_monthly} =~ s/EXEMPT_WHERE/WHERE exempt_monthly = 'Y'/;
+
+# taxable sales
+$sql{taxable} = "$select
+ SUM(cust_bill_pkg.setup + cust_bill_pkg.recur - COALESCE(exempt_charged, 0))
+ FROM cust_main_county
+ JOIN ($pkg_tax) AS pkg_tax USING (taxnum)
+ JOIN cust_bill_pkg USING (billpkgnum)
+ LEFT JOIN ($pkg_tax_exempt) AS pkg_tax_exempt
+ ON (pkg_tax_exempt.billpkgnum = cust_bill_pkg.billpkgnum
+ AND pkg_tax_exempt.taxnum = cust_main_county.taxnum)
+ $join_cust_pkg $where AND $nottax $group";
+
+# Here we're going to sum all line items that are taxable _at all_,
+# under any tax. exempt_charged is the sum of all exemptions for a
+# particular billpkgnum + taxnum; we take the taxnum that has the
+# smallest sum of exemptions and subtract that from the charged amount.
+#
+# (This isn't an exact result, since line items can be taxable under
+# one tax and not another. Under 4.x the tax report is designed to
+# consider only one variety of tax at a time, which should solve this.)
+
+$all_sql{taxable} = "$select_all
+ SUM(cust_bill_pkg.setup + cust_bill_pkg.recur - COALESCE(min_exempt, 0))
+ FROM cust_bill_pkg
+ JOIN (
+ SELECT billpkgnum, MIN(exempt_charged) AS min_exempt
+ FROM ($pkg_tax) AS pkg_tax
+ JOIN cust_bill_pkg USING (billpkgnum)
+ LEFT JOIN ($pkg_tax_exempt) AS pkg_tax_exempt USING (billpkgnum, taxnum)
+ GROUP BY billpkgnum
+ ) AS pkg_is_taxable
+ USING (billpkgnum)
+ $join_cust_pkg $where AND $nottax $group_all";
+
+$sql{taxable} =~ s/EXEMPT_WHERE//; # unrestricted
+$all_sql{taxable} =~ s/EXEMPT_WHERE//;
+
+# there isn't one for 'sales', because we calculate sales by adding up
+# the taxable and exempt columns.
+
+# TAX QUERIES (billed tax, credited tax)
+# -----------
+
+# sum of billed tax:
+# join cust_bill_pkg to cust_main_county via cust_bill_pkg_tax_location
+my $taxfrom = " FROM cust_bill_pkg
+ $join_cust
+ LEFT JOIN cust_bill_pkg_tax_location USING ( billpkgnum )
+ LEFT JOIN cust_main_county USING ( taxnum )";
+
+if ( $with_pkgclass ) {
+ # If we're not grouping by package class, this is unnecessary, and
+ # probably really expensive.
+ $taxfrom .= "
+ LEFT JOIN cust_bill_pkg AS taxable
+ ON (cust_bill_pkg_tax_location.taxable_billpkgnum = taxable.billpkgnum)
+ LEFT JOIN cust_pkg ON (taxable.pkgnum = cust_pkg.pkgnum)
+ LEFT JOIN part_pkg USING (pkgpart)";
+}
+
+my $istax = "cust_bill_pkg.pkgnum = 0";
+my $named_tax =
+ "COALESCE(taxname,'Tax') = COALESCE(cust_bill_pkg.itemdesc,'Tax')";
+
+$sql{tax} = "$select SUM(cust_bill_pkg_tax_location.amount)
+ $taxfrom
+ $where AND $istax AND $named_tax
+ $group";
+
+$all_sql{tax} = "$select_all SUM(cust_bill_pkg.setup)
+ FROM cust_bill_pkg
+ $join_cust
+ $where AND $istax
+ $group_all";
+
+# sum of credits applied against billed tax
+# ($creditfrom includes join of taxable item to part_pkg if with_pkgclass
+# is on)
+my $creditfrom = $taxfrom .
+ ' JOIN cust_credit_bill_pkg USING (billpkgtaxlocationnum)';
+my $creditwhere = $where .
+ ' AND billpkgtaxratelocationnum IS NULL';
+
+$sql{credit} = "$select SUM(cust_credit_bill_pkg.amount)
+ $creditfrom
+ $creditwhere AND $istax AND $named_tax
+ $group";
+
+$all_sql{credit} = "$select_all SUM(cust_credit_bill_pkg.amount)
+ FROM cust_credit_bill_pkg
+ JOIN cust_bill_pkg USING (billpkgnum)
+ $join_cust
+ $where AND $istax
+ $group_all";
+
+if ( $with_pkgclass ) {
+ # the slightly more complicated version, with lots of joins that are
+ # unnecessary if you're not breaking down by package class
+ $all_sql{tax} = "$select_all SUM(cust_bill_pkg_tax_location.amount)
+ $taxfrom
+ $where AND $istax
+ $group_all";
+
+ $all_sql{credit} = "$select_all SUM(cust_credit_bill_pkg.amount)
+ $creditfrom
+ $creditwhere AND $istax
+ $group_all";
+}
+
+# "out of taxable region" sales
+$all_sql{out_sales} =
+ "$select_all SUM(cust_bill_pkg.setup + cust_bill_pkg.recur)
+ FROM (cust_bill_pkg $join_cust_pkg)
+ LEFT JOIN ($pkg_tax) AS pkg_tax USING (billpkgnum)
+ LEFT JOIN ($pkg_tax_exempt) AS pkg_tax_exempt USING (billpkgnum)
+ $where AND $nottax
+ AND pkg_tax.taxnum IS NULL AND pkg_tax_exempt.taxnum IS NULL
+ $group_all"
+;
+
+$all_sql{out_sales} =~ s/EXEMPT_WHERE//;
+
+my %data;
+my %total;
+foreach my $k (keys(%sql)) {
+ my $stmt = $sql{$k};
+ warn "\n".uc($k).":\n".$stmt."\n" if $DEBUG;
+ my $sth = dbh->prepare($stmt);
+ # three columns: classnum, taxnum, value
+ $sth->execute
+ or die "failed to execute $k query: ".$sth->errstr;
+ while ( my $row = $sth->fetchrow_arrayref ) {
+ $data{$k}{$row->[0]}{$row->[1]} = $row->[2];