prepayment discounts rt#5318
[freeside.git] / FS / FS / part_pkg / flat.pm
1 package FS::part_pkg::flat;
2
3 use strict;
4 use vars qw( @ISA %info
5              %usage_fields %usage_recharge_fields
6              @usage_fieldorder @usage_recharge_fieldorder
7            );
8 use Tie::IxHash;
9 use List::Util qw(min); # max);
10 #use FS::Record qw(qsearch);
11 use FS::UI::bytecount;
12 use FS::Conf;
13 use FS::part_pkg;
14 use FS::cust_bill_pkg_discount;
15
16 @ISA = qw(FS::part_pkg FS::part_pkg::prorate_Mixin);
17
18 tie my %temporalities, 'Tie::IxHash',
19   'upcoming'  => "Upcoming (future)",
20   'preceding' => "Preceding (past)",
21 ;
22
23 %usage_fields = (
24
25     'seconds'       => { 'name' => 'Time limit for this package',
26                          'default' => '',
27                          'check' => sub { shift =~ /^\d*$/ },
28                        },
29     'upbytes'       => { 'name' => 'Upload limit for this package',
30                          'default' => '',
31                          'check' => sub { shift =~ /^\d*$/ },
32                          'format' => \&FS::UI::bytecount::display_bytecount,
33                          'parse' => \&FS::UI::bytecount::parse_bytecount,
34                        },
35     'downbytes'     => { 'name' => 'Download limit for this package',
36                          'default' => '',
37                          'check' => sub { shift =~ /^\d*$/ },
38                          'format' => \&FS::UI::bytecount::display_bytecount,
39                          'parse' => \&FS::UI::bytecount::parse_bytecount,
40                        },
41     'totalbytes'    => { 'name' => 'Transfer limit for this package',
42                          'default' => '',
43                          'check' => sub { shift =~ /^\d*$/ },
44                          'format' => \&FS::UI::bytecount::display_bytecount,
45                          'parse' => \&FS::UI::bytecount::parse_bytecount,
46                        },
47 );
48
49 %usage_recharge_fields = (
50
51     'recharge_amount'       => { 'name' => 'Cost of recharge for this package',
52                          'default' => '',
53                          'check' => sub { shift =~ /^\d*(\.\d{2})?$/ },
54                        },
55     'recharge_seconds'      => { 'name' => 'Recharge time for this package',
56                          'default' => '',
57                          'check' => sub { shift =~ /^\d*$/ },
58                        },
59     'recharge_upbytes'      => { 'name' => 'Recharge upload for this package',
60                          'default' => '',
61                          'check' => sub { shift =~ /^\d*$/ },
62                          'format' => \&FS::UI::bytecount::display_bytecount,
63                          'parse' => \&FS::UI::bytecount::parse_bytecount,
64                        },
65     'recharge_downbytes'    => { 'name' => 'Recharge download for this package',
66                          'default' => '',
67                          'check' => sub { shift =~ /^\d*$/ },
68                          'format' => \&FS::UI::bytecount::display_bytecount,
69                          'parse' => \&FS::UI::bytecount::parse_bytecount,
70                        },
71     'recharge_totalbytes'   => { 'name' => 'Recharge transfer for this package',
72                          'default' => '',
73                          'check' => sub { shift =~ /^\d*$/ },
74                          'format' => \&FS::UI::bytecount::display_bytecount,
75                          'parse' => \&FS::UI::bytecount::parse_bytecount,
76                        },
77     'usage_rollover' => { 'name' => 'Allow usage from previous period to roll '.
78                                     ' over into current period',
79                           'type' => 'checkbox',
80                         },
81     'recharge_reset' => { 'name' => 'Reset usage to these values on manual '.
82                                     'package recharge',
83                           'type' => 'checkbox',
84                         },
85 );
86
87 @usage_fieldorder = qw( seconds upbytes downbytes totalbytes );
88 @usage_recharge_fieldorder = qw(
89   recharge_amount recharge_seconds recharge_upbytes
90   recharge_downbytes recharge_totalbytes
91   usage_rollover recharge_reset
92 );
93
94 %info = (
95   'name' => 'Flat rate (anniversary billing)',
96   'shortname' => 'Anniversary',
97   'fields' => {
98     'setup_fee'     => { 'name' => 'Setup fee for this package',
99                          'default' => 0,
100                        },
101     'recur_fee'     => { 'name' => 'Recurring fee for this package',
102                          'default' => 0,
103                        },
104
105     #false laziness w/voip_cdr.pm
106     'recur_temporality' => { 'name' => 'Charge recurring fee for period',
107                              'type' => 'select',
108                              'select_options' => \%temporalities,
109                            },
110     'unused_credit' => { 'name' => 'Credit the customer for the unused portion'.
111                                    ' of service at cancellation',
112                          'type' => 'checkbox',
113                        },
114
115     #used in cust_pkg.pm so could add to any price plan
116     'expire_months' => { 'name' => 'Auto-add an expiration date this number of months out',
117                        },
118     'adjourn_months'=> { 'name' => 'Auto-add a suspension date this number of months out',
119                        },
120     #used in cust_pkg.pm so could add to any price plan where it made sense
121     'start_1st'     => { 'name' => 'Auto-add a start date to the 1st, ignoring the current month.',
122                          'type' => 'checkbox',
123                        },
124     'sync_bill_date' => { 'name' => 'Prorate first month to synchronize '.
125                                     'with the customer\'s other packages',
126                           'type' => 'checkbox',
127                         },
128     'unsuspend_adjust_bill' => 
129                         { 'name' => 'Adjust next bill date forward when '.
130                                     'unsuspending',
131                           'type' => 'checkbox',
132                         },
133
134     %usage_fields,
135     %usage_recharge_fields,
136
137     'externalid' => { 'name'   => 'Optional External ID',
138                       'default' => '',
139                     },
140   },
141   'fieldorder' => [ qw( setup_fee recur_fee
142                         recur_temporality unused_credit
143                         expire_months adjourn_months
144                         start_1st sync_bill_date
145                         unsuspend_adjust_bill
146                       ),
147                     @usage_fieldorder, @usage_recharge_fieldorder,
148                     qw( externalid ),
149                   ],
150   'weight' => 10,
151 );
152
153 sub calc_setup {
154   my($self, $cust_pkg, $sdate, $details ) = @_;
155
156   my $i = 0;
157   my $count = $self->option( 'additional_count', 'quiet' ) || 0;
158   while ($i < $count) {
159     push @$details, $self->option( 'additional_info' . $i++ );
160   }
161
162   my $quantity = $cust_pkg->quantity || 1;
163
164   sprintf("%.2f", $quantity * $self->unit_setup($cust_pkg, $sdate, $details) );
165 }
166
167 sub unit_setup {
168   my($self, $cust_pkg, $sdate, $details ) = @_;
169
170   $self->option('setup_fee') || 0;
171 }
172
173 sub calc_recur {
174   my $self = shift;
175   my($cust_pkg, $sdate, $details, $param ) = @_;
176
177   #my $last_bill = $cust_pkg->last_bill;
178   my $last_bill = $cust_pkg->get('last_bill'); #->last_bill falls back to setup
179
180   return 0
181     if $self->option('recur_temporality', 1) eq 'preceding' && $last_bill == 0;
182
183   if( $self->option('sync_bill_date',1) ) {
184     return $self->calc_prorate(@_);
185   }
186   else {
187     my $charge = $self->base_recur($cust_pkg);
188     $charge *= $param->{freq_override} if $param->{freq_override};
189     my $discount = $self->calc_discount($cust_pkg, $sdate, $details, $param);
190
191     return sprintf('%.2f', $charge - $discount);
192   }
193 }
194
195 sub calc_discount {
196   my($self, $cust_pkg, $sdate, $details, $param ) = @_;
197
198   my $br = $self->base_recur($cust_pkg);
199
200   my $tot_discount = 0;
201   #UI enforces just 1 for now, will need ordering when they can be stacked
202
203   if ( $param->{freq_override} ) {
204     my $real_part_pkg = new FS::part_pkg { $self->hash };
205     $real_part_pkg->pkgpart($param->{real_pkgpart} || $self->pkgpart);
206     my @discount = grep { $_->months == $param->{freq_override} }
207                    map { $_->discount }
208                    $real_part_pkg->part_pkg_discount;
209     my $discount = shift @discount;
210     $param->{months} = $param->{freq_override} unless $param->{months};
211     my $error;
212     if ($discount) {
213       if ($discount->months == $param->{months}) {
214         $cust_pkg->discountnum($discount->discountnum);
215         $error = $cust_pkg->insert_discount;
216       } else {
217         $cust_pkg->discountnum(-1);
218         foreach ( qw( amount percent months ) ) {
219           my $method = "discountnum_$_";
220           $cust_pkg->$method($discount->$_);
221         }
222         $error = $cust_pkg->insert_discount;
223       }
224       die "error discounting using part_pkg_discount: $error" if $error;
225     }
226   }
227
228   my @cust_pkg_discount = $cust_pkg->cust_pkg_discount_active;
229   foreach my $cust_pkg_discount ( @cust_pkg_discount ) {
230      my $discount = $cust_pkg_discount->discount;
231      #UI enforces one or the other (for now?  probably for good)
232      my $amount = 0;
233      $amount += $discount->amount
234        if $cust_pkg->pkgpart == $param->{real_pkgpart};
235      $amount += sprintf('%.2f', $discount->percent * $br / 100 );
236
237      my $chg_months = $param->{'months'} || $cust_pkg->part_pkg->freq;
238      
239      my $months = $discount->months
240                     ? min( $chg_months,
241                            $discount->months - $cust_pkg_discount->months_used )
242                     : $chg_months;
243
244      my $error = $cust_pkg_discount->increment_months_used($months)
245        if $cust_pkg->pkgpart == $param->{real_pkgpart};
246      die "error discounting: $error" if $error;
247
248      $amount *= $months;
249      $amount = sprintf('%.2f', $amount);
250
251      next unless $amount > 0;
252
253      #record details in cust_bill_pkg_discount
254      my $cust_bill_pkg_discount = new FS::cust_bill_pkg_discount {
255        'pkgdiscountnum' => $cust_pkg_discount->pkgdiscountnum,
256        'amount'         => $amount,
257        'months'         => $months,
258      };
259      push @{ $param->{'discounts'} }, $cust_bill_pkg_discount;
260
261      #add details on discount to invoice
262      my $conf = new FS::Conf;
263      my $money_char = $conf->config('money_char') || '$';  
264      $months = sprintf('%.2f', $months) if $months =~ /\./;
265
266      my $d = 'Includes ';
267      $d .= $discount->name. ' ' if $discount->name;
268      $d .= 'discount of '. $discount->description_short;
269      $d .= " for $months month". ( $months!=1 ? 's' : '' );
270      $d .= ": $money_char$amount" if $months != 1 || $discount->percent;
271      push @$details, $d;
272
273      $tot_discount += $amount;
274   }
275
276   sprintf('%.2f', $tot_discount);
277 }
278
279 sub base_recur {
280   my($self, $cust_pkg) = @_;
281   $self->option('recur_fee', 1) || 0;
282 }
283
284 sub base_recur_permonth {
285   my($self, $cust_pkg) = @_;
286
287   return 0 unless $self->freq =~ /^\d+$/ && $self->freq > 0;
288
289   sprintf('%.2f', $self->base_recur($cust_pkg) / $self->freq );
290 }
291
292 sub calc_remain {
293   my ($self, $cust_pkg, %options) = @_;
294
295   my $time;
296   if ($options{'time'}) {
297     $time = $options{'time'};
298   } else {
299     $time = time;
300   }
301
302   my $next_bill = $cust_pkg->getfield('bill') || 0;
303
304   #my $last_bill = $cust_pkg->last_bill || 0;
305   my $last_bill = $cust_pkg->get('last_bill') || 0; #->last_bill falls back to setup
306
307   return 0 if    ! $self->base_recur($cust_pkg)
308               || ! $self->option('unused_credit', 1)
309               || ! $last_bill
310               || ! $next_bill
311               || $next_bill < $time;
312
313   my %sec = (
314     'h' =>    3600, # 60 * 60
315     'd' =>   86400, # 60 * 60 * 24
316     'w' =>  604800, # 60 * 60 * 24 * 7
317     'm' => 2629744, # 60 * 60 * 24 * 365.2422 / 12 
318   );
319
320   $self->freq =~ /^(\d+)([hdwm]?)$/
321     or die 'unparsable frequency: '. $self->freq;
322   my $freq_sec = $1 * $sec{$2||'m'};
323   return 0 unless $freq_sec;
324
325   sprintf("%.2f", $self->base_recur($cust_pkg) * ( $next_bill - $time ) / $freq_sec );
326
327 }
328
329 sub is_free_options {
330   qw( setup_fee recur_fee );
331 }
332
333 sub is_prepaid { 0; } #no, we're postpaid
334
335 #XXX discounts only on recurring fees for now (no setup/one-time or usage)
336 sub can_discount {
337   my $self = shift;
338   $self->freq =~ /^\d+$/ && $self->freq > 0;
339 }
340
341 sub usage_valuehash {
342   my $self = shift;
343   map { $_, $self->option($_) }
344     grep { $self->option($_, 'hush') } 
345     qw(seconds upbytes downbytes totalbytes);
346 }
347
348 sub reset_usage {
349   my($self, $cust_pkg, %opt) = @_;
350   warn "   resetting usage counters" if defined($opt{debug}) && $opt{debug} > 1;
351   my %values = $self->usage_valuehash;
352   if ($self->option('usage_rollover', 1)) {
353     $cust_pkg->recharge(\%values);
354   }else{
355     $cust_pkg->set_usage(\%values, %opt);
356   }
357 }
358
359 1;