1 package FS::part_pkg::prorate_Mixin;
5 use Time::Local qw( timelocal timelocal_nocheck );
6 use Date::Format qw( time2str );
7 use List::Util qw( min );
11 # define all fields that are referenced in this code
13 'add_full_period' => {
14 'name' => 'When prorating first month, also bill for one full '.
18 'prorate_round_day' => {
19 'name' => 'When prorating, round to the nearest full day',
22 'prorate_defer_bill' => {
23 'name' => 'When prorating, defer the first bill until the '.
27 'prorate_verbose' => {
28 'name' => 'Show prorate details on the invoice',
32 'fieldorder' => [ qw(prorate_defer_bill prorate_round_day
33 add_full_period prorate_verbose) ],
37 @{ $info{'fieldorder'} }
42 FS::part_pkg::prorate_Mixin - Mixin class for part_pkg:: classes that
43 need to prorate partial months
47 package FS::part_pkg::...;
48 use base qw( FS::part_pkg::prorate_Mixin );
52 if( conditions that trigger prorate ) {
53 # sets $$sdate and $param->{'months'}, returns the prorated charge
54 $charges = $self->calc_prorate($cust_pkg, $sdate, $param, $cutoff_day);
61 =item calc_prorate CUST_PKG SDATE DETAILS PARAM CUTOFF_DAY
63 Takes all the arguments of calc_recur. Calculates a prorated charge from
64 the $sdate to the cutoff day for this package definition, and sets the $sdate
65 and $param->{months} accordingly. base_recur() will be called to determine
66 the base price per billing cycle.
69 - add_full_period: Bill for the time up to the prorate day plus one full
70 billing period after that.
71 - prorate_round_day: Round the current time to the nearest full day,
72 instead of using the exact time.
73 - prorate_defer_bill: Don't bill the prorate interval until the prorate
75 - prorate_verbose: Generate details to explain the prorate calculations.
80 my ($self, $cust_pkg, $sdate, $details, $param, @cutoff_days) = @_;
81 die "no cutoff_day" unless @cutoff_days;
82 die "can't prorate non-monthly package\n" if $self->freq =~ /\D/;
84 my $money_char = FS::Conf->new->config('money_char') || '$';
86 my $charge = $self->base_recur($cust_pkg, $sdate) || 0;
88 my $add_period = $self->option('add_full_period',1);
92 # if this is the first bill but the bill date has been set
93 # (by prorate_defer_bill), calculate from the setup date,
94 # append the setup fee to @$details, and make sure to bill for
95 # a full period after the bill date.
96 if ( $self->option('prorate_defer_bill',1)
97 && ! $cust_pkg->getfield('last_bill')
101 #warn "[calc_prorate] #".$cust_pkg->pkgnum.": running deferred setup\n";
102 $param->{'setup_fee'} = $self->calc_setup($cust_pkg, $$sdate, $details);
103 $mnow = $cust_pkg->setup;
107 # if the customer alreqady has a billing day-of-month established,
108 # and it's a valid cutoff day, try to respect it
110 if ( my $next_bill = $cust_pkg->cust_main->next_bill_date ) {
111 $next_bill_day = (localtime($next_bill))[3];
112 if ( grep {$_ == $next_bill_day} @cutoff_days ) {
113 # by removing all other cutoff days from the list
114 @cutoff_days = ($next_bill_day);
119 ($mnow, $mend, $mstart) = $self->_endpoints($mnow, @cutoff_days);
121 # next bill date will be figured as $$sdate + one period
124 my $permonth = $charge / $self->freq;
125 my $months = ( ( $self->freq - 1 ) + ($mend-$mnow) / ($mend-$mstart) );
127 if ( $self->option('prorate_verbose',1)
128 and $months > 0 and $months < $self->freq ) {
130 'Prorated (' . time2str('%b %d', $mnow) .
131 ' - ' . time2str('%b %d', $mend) . '): ' . $money_char .
132 sprintf('%.2f', $permonth * $months + 0.00000001 );
135 # add a full period if currently billing for a partial period
136 # or periods up to freq_override if billing for an override interval
137 if ( ($param->{'freq_override'} || 0) > 1 ) {
138 $months += $param->{'freq_override'} - 1;
140 elsif ( $add_period && $months < $self->freq) {
142 if ( $self->option('prorate_verbose',1) ) {
143 # calculate the prorated and add'l period charges
145 'First full month: ' . $money_char .
146 sprintf('%.2f', $permonth);
149 $months += $self->freq;
150 $$sdate = $self->add_freq($mstart);
153 $param->{'months'} = $months;
154 #so 1.005 rounds to 1.01
155 $charge = sprintf('%.2f', $permonth * $months + 0.00000001 );
157 my $quantity = $cust_pkg->quantity || 1;
158 $charge *= $quantity;
160 return sprintf('%.2f', $charge);
163 =item prorate_setup CUST_PKG SDATE
165 Set up the package. This only has an effect if prorate_defer_bill is
166 set, in which case it postpones the next bill to the cutoff day.
172 my ($cust_pkg, $sdate) = @_;
173 my @cutoff_days = $self->cutoff_day($cust_pkg);
174 if ( ! $cust_pkg->bill
175 and $self->option('prorate_defer_bill',1)
178 my ($mnow, $mend, $mstart) = $self->_endpoints($sdate, @cutoff_days);
179 # If today is the cutoff day, set the next bill and setup both to
180 # midnight today, so that the customer will be billed normally for a
181 # month starting today.
182 if ( $mnow - $mstart < 86400 ) {
183 $cust_pkg->setup($mstart);
184 $cust_pkg->bill($mstart);
187 $cust_pkg->bill($mend);
194 =item _endpoints TIME CUTOFF_DAY
196 Given a current time and a day of the month to prorate to, return three
197 times: the start of the prorate interval (usually the current time), the
198 end of the prorate interval (i.e. the cutoff date), and the time one month
199 before the end of the prorate interval.
206 my @cutoff_days = sort {$a <=> $b} @_;
208 # only works for freq >= 1 month; probably can't be fixed
209 my ($sec, $min, $hour, $mday, $mon, $year) = (localtime($mnow))[0..5];
210 if( $self->option('prorate_round_day',1) ) {
211 # If the time is 12:00-23:59, move to the next day by adding 18
212 # hours to $mnow. Because of DST this can end up from 05:00 to 18:59
213 # but it's always within the next day.
214 $mnow += 64800 if $hour >= 12;
215 # Get the new day, month, and year.
216 ($mday,$mon,$year) = (localtime($mnow))[3..5];
217 # Then set $mnow to midnight on that day.
218 $mnow = timelocal(0,0,0,$mday,$mon,$year);
222 # select the first cutoff day that's on or after the current day
223 my $cutoff_day = min( grep { $_ >= $mday } @cutoff_days );
224 # if today is after the last cutoff, choose the first one
225 $cutoff_day ||= $cutoff_days[0];
227 # then, if today is on or after the selected day, set period to
228 # (cutoff day this month) - (cutoff day next month)
229 if ( $mday >= $cutoff_day ) {
231 timelocal_nocheck(0,0,0,$cutoff_day,$mon == 11 ? 0 : $mon + 1,$year+($mon==11));
233 timelocal_nocheck(0,0,0,$cutoff_day,$mon,$year);
235 # otherwise, set period to (cutoff day last month) - (cutoff day this month)
238 timelocal_nocheck(0,0,0,$cutoff_day,$mon,$year);
240 timelocal_nocheck(0,0,0,$cutoff_day,$mon == 0 ? 11 : $mon - 1,$year-($mon==0));
242 return ($mnow, $mend, $mstart);