Add recalc scripts.

diff --git a/recalc-double-result.pl b/recalc-double-result.pl
new file mode 100755 (executable)
index 0000000..7395800
--- /dev/null
+++ b/recalc-double-result.pl
@@ -0,0 +1,77 @@
+#! /usr/bin/perl
+use strict;
+use warnings;
+use DBI;
+use CGI;
+use CGI::Carp qw(fatalsToBrowser);
+require 'foosball.pm';
+
+my $dbh = foosball::db_connect();
+$dbh->{AutoCommit} = 0;
+
+$dbh->do('delete from double_rating');
+
+my %ratings = ();
+my $q = $dbh->prepare('select * from double_results order by gametime');
+$q->execute;
+
+while (my $ref = $q->fetchrow_hashref) {
+       for my $user (($ref->{'team1_username1'}, $ref->{'team1_username2'},
+                      $ref->{'team2_username1'}, $ref->{'team2_username2'})) {
+               if (!exists($ratings{$user})) {
+                       $ratings{$user} = [ 1500, 350 ];
+               }
+       }
+       
+       my $rating1_1 = $ratings{$ref->{'team1_username1'}}->[0];
+       my $rd1_1 = $ratings{$ref->{'team1_username1'}}->[1];
+       my $rating1_2 = $ratings{$ref->{'team1_username2'}}->[0];
+       my $rd1_2 = $ratings{$ref->{'team1_username2'}}->[1];
+       my $rating2_1 = $ratings{$ref->{'team2_username1'}}->[0];
+       my $rd2_1 = $ratings{$ref->{'team2_username1'}}->[1];
+       my $rating2_2 = $ratings{$ref->{'team2_username2'}}->[0];
+       my $rd2_2 = $ratings{$ref->{'team2_username2'}}->[1];
+       my $score1 = $ref->{'score1'};
+       my $score2 = $ref->{'score2'};
+
+       # make virtual "team players"
+       my $rating_team1 = 0.5 * ($rating1_1 + $rating1_2);
+       my $rd_team1 = sqrt($rd1_1 * $rd1_1 + $rd1_2 * $rd1_2) / sqrt(2.0);
+       my $rating_team2 = 0.5 * ($rating1_2 + $rating2_2);
+       my $rd_team2 = sqrt($rd2_1 * $rd2_1 + $rd2_2 * $rd2_2) / sqrt(2.0);
+
+       my ($new_t1r, undef) =  foosball::calc_rating($rating_team1, $rd_team1, $rating_team2, $rd_team2, $score1, $score2);
+       my ($new_t2r, undef) =  foosball::calc_rating($rating_team2, $rd_team2, $rating_team1, $rd_team1, $score2, $score1);
+       my $newr1_1 = $rating1_1 + ($new_t1r - $rating_team1);
+       my $newr1_2 = $rating1_2 + ($new_t1r - $rating_team1);
+       my $newr2_1 = $rating2_1 + ($new_t2r - $rating_team2);
+       my $newr2_2 = $rating2_2 + ($new_t2r - $rating_team2);
+
+       my (undef, $newrd1_1) = foosball::calc_rating($rating1_1, $rd1_1, $rating_team2, $rd_team2, $score1, $score2);
+       my (undef, $newrd1_2) = foosball::calc_rating($rating1_2, $rd1_2, $rating_team2, $rd_team2, $score1, $score2);
+       my (undef, $newrd2_1) = foosball::calc_rating($rating2_1, $rd2_1, $rating_team1, $rd_team1, $score2, $score1);
+       my (undef, $newrd2_2) = foosball::calc_rating($rating2_2, $rd2_2, $rating_team1, $rd_team1, $score2, $score1);
+
+       printf("%-10s/%-10s - %-10s/%-10s: %u - %u, new ratings %u/%u %u/%u   %u/%u %u/%u\n",
+               $ref->{'team1_username1'}, $ref->{'team1_username2'},
+               $ref->{'team2_username1'}, $ref->{'team2_username2'},
+               $ref->{'score1'}, $ref->{'score2'},
+               $newr1_1, $newrd1_1, $newr1_2, $newrd1_2,
+               $newr2_1, $newrd2_1, $newr2_2, $newrd2_2);
+       $dbh->do('insert into double_rating values (?,?,?,?)', undef,
+               $ref->{'team1_username1'}, $ref->{'gametime'}, $newr1_1, $newrd1_1);
+       $dbh->do('insert into double_rating values (?,?,?,?)', undef,
+               $ref->{'team1_username2'}, $ref->{'gametime'}, $newr1_2, $newrd1_2);
+       $dbh->do('insert into double_rating values (?,?,?,?)', undef,
+               $ref->{'team2_username1'}, $ref->{'gametime'}, $newr2_1, $newrd2_1);
+       $dbh->do('insert into double_rating values (?,?,?,?)', undef,
+               $ref->{'team2_username2'}, $ref->{'gametime'}, $newr2_2, $newrd2_2);
+
+       $ratings{$ref->{'team1_username1'}} = [ $newr1_1, $newrd1_1 ];
+       $ratings{$ref->{'team1_username2'}} = [ $newr1_2, $newrd1_2 ];
+       $ratings{$ref->{'team2_username1'}} = [ $newr2_1, $newrd2_1 ];
+       $ratings{$ref->{'team2_username2'}} = [ $newr2_2, $newrd2_2 ];
+}
+
+$dbh->commit;
+$dbh->disconnect;

diff --git a/recalc-single-result.pl b/recalc-single-result.pl
new file mode 100755 (executable)
index 0000000..8c981c2
--- /dev/null
+++ b/recalc-single-result.pl
@@ -0,0 +1,48 @@
+#! /usr/bin/perl
+use strict;
+use warnings;
+use DBI;
+use CGI;
+use CGI::Carp qw(fatalsToBrowser);
+require 'foosball.pm';
+
+my $dbh = foosball::db_connect();
+$dbh->{AutoCommit} = 0;
+
+$dbh->do('delete from single_rating');
+
+my %ratings = ();
+my $q = $dbh->prepare('select * from single_results order by gametime');
+$q->execute;
+
+while (my $ref = $q->fetchrow_hashref) {
+       for my $user (($ref->{'username1'}, $ref->{'username2'})) {
+               if (!exists($ratings{$user})) {
+                       $ratings{$user} = [ 1500, 350 ];
+               }
+       }
+       
+       my $rating1 = $ratings{$ref->{'username1'}}->[0];
+       my $rd1 = $ratings{$ref->{'username1'}}->[1];
+       my $rating2 = $ratings{$ref->{'username2'}}->[0];
+       my $rd2 = $ratings{$ref->{'username2'}}->[1];
+       my $score1 = $ref->{'score1'};
+       my $score2 = $ref->{'score2'};
+
+       my ($newr1, $newrd1) = foosball::calc_rating($rating1, $rd1, $rating2, $rd2, $score1, $score2);
+       my ($newr2, $newrd2) = foosball::calc_rating($rating2, $rd2, $rating1, $rd1, $score2, $score1);
+
+       printf("%-10s - %-10s: %u - %u, new ratings %u/%u %u/%u\n",
+               $ref->{'username1'}, $ref->{'username2'}, $ref->{'score1'},
+               $ref->{'score2'}, $newr1, $newrd1, $newr2, $newrd2);
+       $dbh->do('insert into single_rating values (?,?,?,?)', undef,
+               $ref->{'username1'}, $ref->{'gametime'}, $newr1, $newrd1);
+       $dbh->do('insert into single_rating values (?,?,?,?)', undef,
+               $ref->{'username2'}, $ref->{'gametime'}, $newr2, $newrd2);
+
+       $ratings{$ref->{'username1'}} = [ $newr1, $newrd1 ];
+       $ratings{$ref->{'username2'}} = [ $newr2, $newrd2 ];
+}
+
+$dbh->commit;
+$dbh->disconnect;