1 package FS::part_pkg::discount_Mixin;
5 use Time::Local qw( timelocal );
6 use List::Util qw( min );
7 use FS::Record qw( qsearchs );
9 use FS::cust_bill_pkg_discount;
11 %info = ( 'disabled' => 1 );
15 FS::part_pkg::discount_Mixin - Mixin class for part_pkg:: classes that
20 package FS::part_pkg::...;
21 use base qw( FS::part_pkg::discount_Mixin );
25 my $discount = $self->calc_discount($cust_pkg, $$sdate, $details, $param);
32 =item calc_discount CUST_PKG, SDATE, DETAILS_ARRAYREF, PARAM_HASHREF
34 Takes all the arguments of calc_recur. Calculates and returns the amount
35 by which to reduce the charge; also increments months used on the discount.
37 If there is a setup fee, this will be called once with 'setup_charge' => the
38 setup fee amount (and should return the discount to be applied to the setup
39 charge, if any), and again without it (for the recurring fee discount).
40 PARAM_HASHREF carries over between the two invocations.
45 my($self, $cust_pkg, $sdate, $details, $param ) = @_;
46 my $conf = new FS::Conf;
48 my $br = $self->base_recur($cust_pkg, $sdate);
50 ## can not multiply non monthly recurring frequency so skip.
51 unless ($cust_pkg->part_pkg->freq !~ /^\d+$/) {
52 $br += $param->{'override_charges'} * ($cust_pkg->part_pkg->freq || 0) if $param->{'override_charges'};
56 #UI enforces just 1 for now, will need ordering when they can be stacked
58 if ( $param->{freq_override} ) {
59 # When a customer pays for more than one month at a time to receive a
60 # term discount, freq_override is set to the number of months.
61 my $real_part_pkg = new FS::part_pkg { $self->hash };
62 $real_part_pkg->pkgpart($param->{real_pkgpart} || $self->pkgpart);
63 # Find a discount with that duration...
64 my @discount = grep { $_->months == $param->{freq_override} }
65 map { $_->discount } $real_part_pkg->part_pkg_discount;
66 my $discount = shift @discount;
67 # and default to bill that many months at once.
68 $param->{months} = $param->{freq_override} unless $param->{months};
71 # Then set the cust_pkg discount.
72 if ($discount->months == $param->{months}) {
73 $cust_pkg->discountnum($discount->discountnum);
74 $error = $cust_pkg->insert_discount;
76 $cust_pkg->discountnum(-1);
77 foreach ( qw( amount percent months ) ) {
78 my $method = "discountnum_$_";
79 $cust_pkg->$method($discount->$_);
81 $error = $cust_pkg->insert_discount;
83 die "error discounting using part_pkg_discount: $error" if $error;
87 my @cust_pkg_discount = $cust_pkg->cust_pkg_discount_active;
88 foreach my $cust_pkg_discount ( @cust_pkg_discount ) {
90 my $discount = $cust_pkg_discount->discount;
91 #UI enforces one or the other (for now? probably for good)
92 # $chg_months: the number of months we are charging recur for
93 # $months: $chg_months or the months left on the discount, whchever is less
95 my $chg_months = $cust_pkg->part_pkg->freq || 1;
96 if ( defined($param->{'months'}) ) { # then override
97 $chg_months = $param->{'months'};
100 my $months = $chg_months;
101 if ( $discount->months ) {
102 $months = min( $chg_months,
103 $discount->months - $cust_pkg_discount->months_used );
106 # $amount is now the (estimated) discount amount on the recurring charge.
107 # if it's a percent discount, that's base recur * percentage.
111 if (defined $param->{'setup_charge'}) {
113 # we are calculating the setup discount.
114 # if this discount doesn't apply to setup fees, skip it.
115 # if it's a percent discount, set $amount = percent * setup_charge.
116 # if it's a flat amount discount for one month:
117 # - if the discount amount > setup_charge, then set it to setup_charge,
118 # and set 'discount_left_recur' to the difference.
119 # - otherwise set it to just the discount amount.
120 # if it's a flat amount discount for other than one month:
121 # - skip the discount. unsure, leaving it alone for now.
123 next unless $discount->setup;
125 $months = 0; # never count a setup discount as a month of discount
126 # (the recur discount in the same month should do it)
128 if ( $discount->percent > 0 ) {
129 $amount = $discount->percent * $param->{'setup_charge'} / 100;
130 } elsif ( $discount->amount > 0 ) {
131 # apply the discount amount, up to a maximum of the setup charge
132 $amount = min($discount->amount, $param->{'setup_charge'});
133 $discount_left = sprintf('%.2f', $discount->amount - $amount);
134 # transfer remainder of discount, if any, to recur
135 $param->{'discount_left_recur'}{$discount->discountnum} = $discount_left;
140 # we are calculating a recurring fee discount. estimate the recurring
141 # fee. Note we use $months here rather than $chg_months so that if the
142 # remaining discount amount is for less time than the package period,
143 # the "estimated recurring fee" is only for as long as the discount
146 # can not multiply non monthly recurring frequency so skip.
147 next if $self->freq !~ /^\d+$/;
149 my $recur_charge = $br * $months / $self->freq;
150 # round this, because the real recur charge is rounded
151 $recur_charge = sprintf('%.2f', $recur_charge);
153 # if it's a percentage discount, calculate it based on that estimate.
154 # otherwise use the flat amount.
156 if ( $discount->percent > 0 ) {
157 $amount = $recur_charge * $discount->percent / 100;
158 } elsif ( $discount->amount > 0
159 and $cust_pkg->pkgpart == $param->{'real_pkgpart'} ) {
160 $amount = $discount->amount * $months;
163 if ( exists $param->{'discount_left_recur'}{$discount->discountnum} ) {
164 # there is a discount_left_recur entry for this discountnum, so this
165 # is the second (recur) pass on the discount. use up transferred
166 # remainder of discount from setup.
168 # note that discount_left_recur can now be zero.
169 $amount = $param->{'discount_left_recur'}{$discount->discountnum};
170 $param->{'discount_left_recur'}{$discount->discountnum} = 0;
171 $months = 1; # XXX really? not $chg_months?
173 #elsif ( $discount->setup
174 # && ($discount->months || 0) == 1
175 # && $discount->amount > 0
179 # RT #11512: bugfix to prevent applying flat discount to both setup
180 # and recur. The original implementation ignored discount_left_recur
181 # if it was zero, so if the setup fee used up the entire flat
182 # discount, the recurring charge would get to use the entire flat
183 # discount also. This bugfix was a kludge. Instead, we now allow
184 # discount_left_recur to be zero in that case, and then the available
185 # recur discount is zero.
188 # transfer remainder of discount, if any, to setup
189 # this is used when the recur phase wants to add a setup fee
190 # (prorate_defer_bill): the "discount_left_setup" amount will
191 # be subtracted in _make_lines.
192 if ( $discount->setup && $discount->amount > 0
193 && ($discount->months || 0) != 1
196 # $amount is no longer permonth at this point! correct. very good.
197 $discount_left = $amount - $recur_charge; # backward, as above
198 if ( $discount_left > 0 ) {
199 $amount = $recur_charge;
200 $param->{'discount_left_setup'}{$discount->discountnum} =
205 # cap the discount amount at the recur charge
206 $amount = min($amount, $recur_charge);
208 # if this is the base pkgpart, schedule increment_months_used to run at
209 # the end of billing. (addon packages haven't been calculated yet, so
210 # don't let the discount expire during the billing process. RT#17045.)
211 if ( $cust_pkg->pkgpart == $param->{'real_pkgpart'} ) {
212 push @{ $param->{precommit_hooks} }, sub {
213 my $error = $cust_pkg_discount->increment_months_used($months);
214 die "error discounting: $error" if $error;
220 $amount = sprintf('%.2f', $amount + 0.00000001 ); #so 1.005 rounds to 1.01
222 next unless $amount > 0;
224 #record details in cust_bill_pkg_discount
225 my $cust_bill_pkg_discount = new FS::cust_bill_pkg_discount {
226 'pkgdiscountnum' => $cust_pkg_discount->pkgdiscountnum,
229 # XXX should have a 'setuprecur' (and on 4.x, it does)
231 push @{ $param->{'discounts'} }, $cust_bill_pkg_discount;
232 $tot_discount += $amount;
236 sprintf('%.2f', $tot_discount);