From 2be0687ad93376100101bb270d7ff838b91a869a Mon Sep 17 00:00:00 2001
From: Mark Wells <mark@freeside.biz>
Date: Mon, 7 Jan 2013 17:14:32 -0800
Subject: [PATCH] application of line item credits, #20629

---
 FS/FS/cust_credit.pm      | 22 ++++++++++++++++------
 FS/FS/cust_main_county.pm |  2 ++
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/FS/FS/cust_credit.pm b/FS/FS/cust_credit.pm
index c716602a0..082b0f256 100644
--- a/FS/FS/cust_credit.pm
+++ b/FS/FS/cust_credit.pm
@@ -646,6 +646,7 @@ Example:
 use FS::cust_bill_pkg;
 sub credit_lineitems {
   my( $class, %arg ) = @_;
+  warn Data::Dumper::Dumper \%arg;
   my $curuser = $FS::CurrentUser::CurrentUser;
 
   #some false laziness w/misc/xmlhttp-cust_bill_pkg-calculate_taxes.html
@@ -717,8 +718,7 @@ sub credit_lineitems {
   my %cust_bill_pkg = ();
   my %cust_credit_bill_pkg = ();
   my %taxlisthash = ();
-  # except here they're billpaynums
-  my %unapplied_payments;
+  my %unapplied_payments; #invoice numbers, and then billpaynums
   foreach my $billpkgnum ( @{$arg{billpkgnums}} ) {
     my $setuprecur = shift @{$arg{setuprecurs}};
     my $amount = shift @{$arg{amounts}};
@@ -753,7 +753,7 @@ sub credit_lineitems {
         $dbh->rollback if $oldAutoCommit;
         return "Error unapplying payment: $error";
       }
-      $unapplied_payments{$cust_bill_pay_pkg->billpaynum}
+      $unapplied_payments{$invnum}{$cust_bill_pay_pkg->billpaynum}
         += $cust_bill_pay_pkg->amount;
     }
 
@@ -893,27 +893,37 @@ sub credit_lineitems {
           $dbh->rollback if $oldAutoCommit;
           return "Error unapplying payment: $error";
         }
-        $unapplied_payments{$cust_bill_pay_pkg->billpaynum}
+        $unapplied_payments{$invnum}{$cust_bill_pay_pkg->billpaynum}
           += $cust_bill_pay_pkg->amount;
       }
     } #foreach $taxline
 
     # if we unapplied any payments from line items, also unapply that 
     # amount from the invoice
-    foreach my $billpaynum (keys %unapplied_payments) {
+    foreach my $billpaynum (keys %{$unapplied_payments{$invnum}}) {
       my $cust_bill_pay = FS::cust_bill_pay->by_key($billpaynum)
         or die "broken payment application $billpaynum";
+      my @subapps = $cust_bill_pay->lineitem_applications;
       $error = $cust_bill_pay->delete; # can't replace
 
       my $new_cust_bill_pay = FS::cust_bill_pay->new({
           $cust_bill_pay->hash,
           billpaynum => '',
           amount => sprintf('%.2f', 
-              $cust_bill_pay->amount - $unapplied_payments{$billpaynum}),
+              $cust_bill_pay->amount 
+              - $unapplied_payments{$invnum}{$billpaynum}),
       });
 
       if ( $new_cust_bill_pay->amount > 0 ) {
         $error ||= $new_cust_bill_pay->insert;
+        # Also reapply it to everything it was applied to before.
+        # Note that we've already deleted cust_bill_pay_pkg records for the
+        # items we're crediting, so they aren't on this list.
+        foreach my $cust_bill_pay_pkg (@subapps) {
+          $cust_bill_pay_pkg->billpaypkgnum('');
+          $cust_bill_pay_pkg->billpaynum($new_cust_bill_pay->billpaynum);
+          $error ||= $cust_bill_pay_pkg->insert;
+        }
       }
       if ( $error ) {
         $dbh->rollback if $oldAutoCommit;
diff --git a/FS/FS/cust_main_county.pm b/FS/FS/cust_main_county.pm
index db6be751d..573359571 100644
--- a/FS/FS/cust_main_county.pm
+++ b/FS/FS/cust_main_county.pm
@@ -498,6 +498,8 @@ sub taxline {
         'taxnum'      => $self->taxnum,
         'taxtype'     => ref($self),
         'cents'       => $this_tax_cents,
+        'pkgnum'      => $cust_bill_pkg->pkgnum,
+        'locationnum' => $cust_bill_pkg->cust_pkg->tax_locationnum,
         'taxable_cust_bill_pkg' => $cust_bill_pkg,
         'tax_cust_bill_pkg'     => $tax_item,
     });
-- 
2.11.0