discounts, RT#6679

[freeside.git] / FS / FS / part_pkg / flat.pm

diff --git a/FS/FS/part_pkg/flat.pm b/FS/FS/part_pkg/flat.pm
index d1863f4..e5fc089 100644 (file)
--- a/FS/FS/part_pkg/flat.pm
+++ b/FS/FS/part_pkg/flat.pm
@@ -6,8 +6,10 @@ use vars qw( @ISA %info
              @usage_fieldorder @usage_recharge_fieldorder
            );
 use Tie::IxHash;
+use List::Util qw(min); # max);
 #use FS::Record qw(qsearch);
 use FS::UI::bytecount;
+use FS::Conf;
 use FS::part_pkg;
 
 @ISA = qw(FS::part_pkg);
@@ -153,7 +155,57 @@ sub calc_recur {
   return 0
     if $self->option('recur_temporality', 1) eq 'preceding' && $last_bill == 0;
 
-  $self->base_recur(@_);
+  my $br = $self->base_recur(@_);
+
+  my $discount = $self->calc_discount(@_);
+
+  sprintf('%.2f', $br - $discount);
+}
+
+sub calc_discount {
+  my $self = shift;
+  my($cust_pkg, $sdate, $details, $param ) = @_;
+
+  my $br = $self->base_recur(@_);
+
+  my $tot_discount = 0;
+  #UI enforces just 1 for now, will need ordering when they can be stacked
+  foreach my $cust_pkg_discount ( $cust_pkg->cust_pkg_discount_active ) {
+     my $discount = $cust_pkg_discount->discount;
+     #UI enforces one or the other (for now?  probably for good)
+     my $amount = 0;
+     $amount += $discount->amount;
+     $amount += sprintf('%.2f', $discount->percent * $br / 100 );
+
+     my $chg_months = $param->{'months'} || $cust_pkg->part_pkg->freq;
+     
+     my $months = $discount->months
+                    ? min( $chg_months,
+                           $discount->months - $cust_pkg->months_used )
+                    : $chg_months;
+
+     my $error = $cust_pkg_discount->increment_months_used($months);
+     die "error discounting: $error" if $error;
+
+     $amount *= $months;
+     $amount = sprintf('%.2f', $amount);
+
+     #add details on discount to invoice
+     my $conf = new FS::Conf;
+     my $money_char = $conf->config('money_char') || '$';  
+     $months = sprintf('%.2f', $months) if $months =~ /\./;
+
+     my $d = 'Includes ';
+     $d .= $discount->name. ' ' if $discount->name;
+     $d .= 'discount of '. $discount->description_short;
+     $d .= " for $months month". ( $months!=1 ? 's' : '' );
+     $d .= ": $money_char$amount" if $months != 1 || $discount->percent;
+     push @$details, $d;
+
+     $tot_discount += $amount;
+  }
+
+  sprintf('%.2f', $tot_discount);
 }
 
 sub base_recur {
@@ -162,11 +214,11 @@ sub base_recur {
 }
 
 sub base_recur_permonth {
-  my($self, $cust_pkg) = @_; #$cust_pkg?
+  my($self, $cust_pkg) = @_;
 
   return 0 unless $self->freq =~ /^\d+$/ && $self->freq > 0;
 
-  sprintf('%.2f', $self->base_recur / $self->freq );
+  sprintf('%.2f', $self->base_recur($cust_pkg) / $self->freq );
 }
 
 sub calc_remain {
@@ -184,7 +236,7 @@ sub calc_remain {
   #my $last_bill = $cust_pkg->last_bill || 0;
   my $last_bill = $cust_pkg->get('last_bill') || 0; #->last_bill falls back to setup
 
-  return 0 if    ! $self->base_recur
+  return 0 if    ! $self->base_recur($cust_pkg)
               || ! $self->option('unused_credit', 1)
               || ! $last_bill
               || ! $next_bill
@@ -202,7 +254,7 @@ sub calc_remain {
   my $freq_sec = $1 * $sec{$2||'m'};
   return 0 unless $freq_sec;
 
-  sprintf("%.2f", $self->base_recur * ( $next_bill - $time ) / $freq_sec );
+  sprintf("%.2f", $self->base_recur($cust_pkg) * ( $next_bill - $time ) / $freq_sec );
 
 }
 
@@ -210,20 +262,24 @@ sub is_free_options {
   qw( setup_fee recur_fee );
 }
 
-sub is_prepaid {
-  0; #no, we're postpaid
+sub is_prepaid { 0; } #no, we're postpaid
+
+#XXX discounts only on recurring fees for now (no setup/one-time or usage)
+sub can_discount {
+  my $self = shift;
+  $self->freq =~ /^\d+$/ && $self->freq > 0;
 }
 
 sub usage_valuehash {
   my $self = shift;
-  map { $_, $self->option($_) } 
+  map { $_, $self->option($_) }
     grep { $self->option($_, 'hush') } 
     qw(seconds upbytes downbytes totalbytes);
 }
 
 sub reset_usage {
   my($self, $cust_pkg, %opt) = @_;
-  warn "    resetting usage counters" if $opt{debug} > 1;
+  warn "   resetting usage counters" if defined($opt{debug}) && $opt{debug} > 1;
   my %values = $self->usage_valuehash;
   if ($self->option('usage_rollover', 1)) {
     $cust_pkg->recharge(\%values);