1 package IronMunger::Calculate;
5 use List::Util qw(min);
7 use autobox::DateTime::Duration;
10 use Sub::Exporter -setup => {
12 qw(successful_sequential_posts days_remaining_to_post level_for_post_count)
16 sub day_diff ($dt1, $dt2) {
17 $dt1 = $dt1->at if $dt1->isa('IronMunger::Post');
18 $dt2 = $dt2->at if $dt2->isa('IronMunger::Post');
19 my $seconds = $dt2->epoch - $dt1->epoch;
20 $seconds = -$seconds if $seconds < 0;
21 int($seconds / 86400);
22 #$dt1->delta_days($dt2)->delta_days;
25 sub check_post_gap ($aperture, $days, @posts) {
26 return scalar @posts if @posts <= $aperture;
27 my @next_post = splice(@posts, 0, $aperture);
28 if (day_diff(DateTime->now, $next_post[-1]) > $days) {
29 while (@next_post && day_diff(DateTime->now, $next_post[-1]) > $days) {
32 return scalar(@next_post);
34 my $success = $aperture;
35 foreach my $post (@posts) {
36 if (day_diff($next_post[0],$post) > $days) {
41 push(@next_post, $post);
46 sub check_time_remaining ($aperture, $days, @posts) {
47 my @consider = @posts > $aperture ? @posts[0 .. $aperture - 1] : @posts;
48 foreach my $cand (reverse @consider) {
49 my $days_ago = day_diff(DateTime->now, $cand);
50 return $days - $days_ago if $days > $days_ago;
55 sub check_both ($check, @posts) {
57 $check->(1, 10, @posts), # 10 days between posts
58 $check->(4, 32, @posts), # 4 posts within any given 32 days
62 sub successful_sequential_posts (@posts) {
63 return check_both(\&check_post_gap, @posts);
66 sub days_remaining_to_post (@posts) {
67 return check_both(\&check_time_remaining, @posts);
70 sub level_for_post_count($count) {
71 return 'paper' if $count < 4;
72 return 'stone' if $count < 12;
73 return 'bronze' if $count < 36;