X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=www%2Findex.pl;h=2cecec4672ad48d7a1893ef4a951989f367c556b;hb=dec0ff92103e212921be03744323ed3a3074e996;hp=332993595a98937ec279dd7f6be5398ea9b7309f;hpb=d35eb6c9370460b96aba3f821ed02fe40f871325;p=wloh

diff --git a/www/index.pl b/www/index.pl
index 3329935..2cecec4 100755
--- a/www/index.pl
+++ b/www/index.pl
@@ -9,8 +9,10 @@ use POSIX;
 use Devel::Peek;
 use HTML::Entities;
 use Encode;
+use utf8;
 use locale;
 require '../config.pm';
+require '../common.pm';
 
 my $cgi = CGI->new;
 
@@ -25,9 +27,8 @@ binmode STDOUT, ':utf8';
 
 my %players = ();
 my %ratings = ();
+my %ratings_stddev = ();
 my @matches = ();
-my %parms = ();
-my $match_stddev;
 
 sub sanitize {
 	return HTML::Entities::encode_entities(shift);
@@ -38,15 +39,143 @@ sub color {
 	return int(255.0 * ($x ** (1.80)));
 }
 
-sub make_table {
-	my $used_ratings = shift;
+sub get_max_season {
+	my $dbh = shift;
+	my $ref = $dbh->selectrow_hashref('SELECT MAX(sesong) AS max_sesong FROM fotballserier');
+	return $ref->{'max_sesong'};
+}
+
+sub get_divisions {
+	my ($dbh, $season) = @_;
+
+	my @divisions = ();
+
+	my $q = $dbh->prepare('SELECT DISTINCT(divisjon) FROM fotballserier WHERE sesong=? ORDER BY divisjon');
+	$q->execute($season);
+
+	while (my $ref = $q->fetchrow_hashref) {
+		push @divisions, $ref->{'divisjon'};
+	}
+
+	return @divisions;
+}
+
+sub get_subdivisions {
+	my ($dbh, $season, $division) = @_;
+
+	my @subdivisions = ();
+
+	my $q = $dbh->prepare('SELECT DISTINCT(avdeling) FROM fotballserier WHERE sesong=? AND divisjon=? ORDER BY avdeling');
+	$q->execute($season, $division);
+
+	while (my $ref = $q->fetchrow_hashref) {
+		push @subdivisions, $ref->{'avdeling'};
+	}
+
+	return @subdivisions;
+}
+
+sub print_division_selector {
+	my ($dbh, $divisions, $subdivisions, $division, $subdivision) = @_;
 
 	print <<"EOF";
+    <form method="get" action="/">
+EOF
 
-    <table>
-      <tr>
-        <th></th>
+	my $max_division = $divisions->[(scalar @$divisions) - 1];
+
+	print <<"EOF";
+     <p>Divisjon:
+        <select name="divisjon" onchange="form.submit();">
+EOF
+
+	for my $d (@$divisions) {
+		if ($d == $division) {
+			print "        <option value=\"$d\" selected=\"selected\">$d</option>\n";
+		} else {
+			print "        <option value=\"$d\">$d</option>\n";
+		}
+	}
+
+	print <<"EOF";
+        </select>
+        Avdeling:
+        <select name="avdeling" onchange="form.submit();">
+EOF
+
+	for my $sd (@$subdivisions) {
+		if ($sd == $subdivision) {
+			print "        <option value=\"$sd\" selected=\"selected\">$sd</option>\n";
+		} else {
+			print "        <option value=\"$sd\">$sd</option>\n";
+		}
+	}
+
+	print <<"EOF";
+        </select>
+        <input type="submit" value="Vis" />
+      </p>
+    </form>
 EOF
+}
+
+sub get_players_and_ratings {
+	my ($dbh, $season, $division, $subdivision) = @_;
+
+	my $q = $dbh->prepare('SELECT fotballdeltagere.id,fotballdeltagere.navn,rating,rating_stddev FROM fotballdeltagere JOIN fotballserier ON fotballdeltagere.serie=fotballserier.nr LEFT JOIN ratings ON fotballdeltagere.id=ratings.id WHERE sesong=? AND divisjon=? AND avdeling=?');
+	$q->execute($season, $division, $subdivision);
+
+	while (my $ref = $q->fetchrow_hashref) {
+		my $id = $ref->{'id'};
+		$players{$id} = sanitize(Encode::decode_utf8($ref->{'navn'}));
+		$ratings{$id} = $ref->{'rating'};
+		$ratings_stddev{$id} = $ref->{'rating_stddev'};
+	}
+	$q->finish;
+}
+
+sub get_matches {
+	my ($dbh, $season, $division, $subdivision) = @_;
+
+	my @matches = ();
+	my $q = $dbh->prepare('
+	SELECT
+	  d1.id AS p1, d2.id AS p2, maalfor AS score1, maalmot AS score2
+	FROM fotballresultater r
+	  JOIN fotballserier s ON r.serie=s.nr
+	  JOIN fotballdeltagere d1 ON r.lagrecno=d1.nr AND r.serie=d1.serie
+	  JOIN fotballdeltagere d2 ON r.motstander=d2.nr AND r.serie=d2.serie
+	WHERE
+	  sesong=? AND divisjon=? AND avdeling=?
+	  AND lagrecno > motstander
+	');
+	$q->execute($season, $division, $subdivision);
+
+	while (my $ref = $q->fetchrow_hashref) {
+		push @matches, [ $ref->{'p1'}, $ref->{'p2'}, $ref->{'score1'}, $ref->{'score2'} ];
+	}
+	$q->finish;
+
+	return @matches;
+}
+
+sub get_covariance_matrix {
+	my ($dbh, @players) = @_;
+
+	my $player_sql = '{' . join(',', @players ) . '}';
+	my $q = $dbh->prepare('SELECT * FROM covariance WHERE player1=ANY(?::smallint[]) AND player2=ANY(?::smallint[])', { pg_prepare_now => 0 });
+	$q->execute($player_sql, $player_sql);
+
+	my $cov = {};
+	while (my $ref = $q->fetchrow_hashref) {
+		$cov->{$ref->{'player1'}}{$ref->{'player2'}} = $ref->{'cov'};
+	}
+
+	return $cov;
+}
+
+sub write_parms_to_file {
+	my ($aux_parms, $match_stddev, $used_ratings, $used_cov) = @_;
 
 	POSIX::setlocale(&POSIX::LC_ALL, 'C');
 
@@ -58,11 +187,20 @@ EOF
 	printf MCCALC "%d\n", scalar keys %players;
 
 	for my $id (keys %players) {
-		if (exists($used_ratings->{$id})) {
-			printf MCCALC "%s %f\n", $id, $used_ratings->{$id};
-		} else {
-			printf MCCALC "%s %f\n", $id, 1500.0;
+		my $rating = $used_ratings->{$id} // 500.0;
+		printf MCCALC "%s %f\n", $id, $rating;
+	}
+
+	# covariance matrix
+	for my $id1 (keys %players) {
+		for my $id2 (keys %players) {
+			if ($id1 == $id2) {
+				printf MCCALC "%f ", ($used_cov->{$id1}{$id2} // $aux_parms->{-3});
+			} else {
+				printf MCCALC "%f ", ($used_cov->{$id1}{$id2} // 0.0);
+			}
 		}
+		printf MCCALC "\n";
 	}
 
 	for my $match (@matches) {
@@ -72,6 +210,20 @@ EOF
 
 	POSIX::setlocale(&POSIX::LC_ALL, 'nb_NO.UTF-8');
 
+	return $tmpnam;
+}
+
+sub make_table {
+	my ($aux_parms, $match_stddev, $lowest_division, $used_ratings, $used_cov) = @_;
+
+	print <<"EOF";
+
+    <table>
+      <tr>
+        <th></th>
+EOF
+
+	my $tmpnam = write_parms_to_file($aux_parms, $match_stddev, $used_ratings, $used_cov);
 	my %prob = ();
 
 	open MCCALC, "$config::base_dir/mcwordfeud $trials < $tmpnam |"
@@ -80,7 +232,7 @@ EOF
 		chomp;
 		my @x = split /\s+/;
 		my $id = $x[0];
-		my $player = $players{$id};
+		my $player = sprintf "%s (%.0f ± %.0f)", $players{$id}, ($ratings{$id} // 500.0), ($ratings_stddev{$id} // $aux_parms->{-3});
 		$prob{$player} = [ @x[1..$#x] ];
 	}
 	close MCCALC;
@@ -90,7 +242,7 @@ EOF
 	for my $i (1..$num_games) {
 		print "        <th>$i.</th>\n";
 	}
-	print "        <th>NEDRYKK</th>\n";
+	print "        <th>NEDRYKK</th>\n" unless ($lowest_division);
 	print "      </tr>\n";
 
 	for my $player (sort { $a cmp $b } keys %prob) {
@@ -106,20 +258,20 @@ EOF
 
 			if ($i == 1) {
 				($g, $b) = ($b, $g);
-			} elsif ($i >= $num_games - 1) {
+			} elsif ($i >= $num_games - 1 && !$lowest_division) {
 				($r, $b) = ($b, $r);
 			}
 
-			printf "        <td style=\"background-color: rgb($r, $g, $b)\">%.1f%%</td>\n", $pn * 100.0;
+			printf "        <td style=\"background-color: rgb($r, $g, $b)\" class=\"num\">%.1f%%</td>\n", $pn * 100.0;
 		}
 
-		{
+		unless ($lowest_division) {
 			my $pn = ($prob{$player}->[$num_games - 1] + $prob{$player}->[$num_games - 2]) / $trials;
 
 			my $r = color(1.0);
 			my $g = color(1.0 - $pn / 3);
 			my $b = color(1.0 - $pn / 3);
-			printf "        <td style=\"background-color: rgb($r, $g, $b)\">%.1f%%</td>\n", $pn * 100.0;
+			printf "        <td style=\"background-color: rgb($r, $g, $b)\" class=\"num\">%.1f%%</td>\n", $pn * 100.0;
 		}
 		print "      </tr>\n";
 	}
@@ -129,159 +281,102 @@ EOF
 EOF
 }
 
-# Get auxillary parameters
-my $q = $dbh->prepare('SELECT * FROM ratings WHERE id < 0');
-$q->execute;
+sub find_avg_rating {
+	my ($ratings) = shift;
 
-while (my $ref = $q->fetchrow_hashref) {
-	$parms{$ref->{'id'}} = $ref->{'rating'};
+	my $sum_rating = 0.0;
+	for my $r (values %$ratings) {
+		$sum_rating += $r;
+	}
+	return $sum_rating / scalar keys %ratings;
 }
-$match_stddev = $parms{-2} * sqrt(2.0);
 
-my $season;
-my $division = $cgi->param('divisjon') // -1;
-my $subdivision = $cgi->param('avdeling') // -1;
+sub get_auxillary_parameters {
+	my $q = $dbh->prepare('SELECT * FROM ratings WHERE id < 0');
+	$q->execute;
 
-POSIX::setlocale(&POSIX::LC_ALL, 'nb_NO.UTF-8');
+	my $aux_parms = {};
+	while (my $ref = $q->fetchrow_hashref) {
+		$aux_parms->{$ref->{'id'}} = $ref->{'rating'};
+	}
+	return $aux_parms;
+}
 
-print $cgi->header(-type=>'text/html; charset=utf-8', -expires=>'now');
-printf <<"EOF", $match_stddev;
-<html>
+sub print_header {
+	my ($cgi, $title) = @_;
+	print $cgi->header(-type=>'text/html; charset=utf-8', -expires=>'now');
+	print <<"EOF";
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE
+  html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
+  "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="no">
   <head>
-    <title>WLoH-plasseringsannsynlighetsberegning</title>
-    <style type="text/css">
-body {
-	color: black;
-	background: white;
-	font-family: sans-serif;
-}
-table {
-	border-collapse: collapse;
-	border: 1px solid black;
-}
-td, th {
-	border: 1px solid black;
-	padding: 5px;
-}
-td {
-	text-align: right;
-}
-    </style>
+    <title>$title</title>
+    <link rel="stylesheet" href="/style" type="text/css" />
   </head>
   <body>
-    <h1>WLoH-plasseringsannsynlighetsberegning</h1>
-
-    <p>Beregningen tar ikke hensyn til ujevn spillestyrke, ting som er sagt i forumet e.l.;
-      den antar at samtlige uspilte kamper trekkes fra en normalfordeling med standardavvik
-      %.1f poeng. Sannsynlighetene kan summere til andre tall enn 100%% pga. avrunding.
-      Tallene vil variere litt fra gang til gang fordi utregningen skjer ved randomisering.</p>
-
-    <p>Spillerne er sortert etter nick.</p>
-
-    <form method="get" action="/">
 EOF
-
-$q = $dbh->prepare('SELECT MAX(sesong) AS max_sesong FROM fotballserier');
-$q->execute;
-my $season;
-while (my $ref = $q->fetchrow_hashref) {
-	$season = $ref->{'max_sesong'};
 }
 
-print <<"EOF";
-     <p>Divisjon:
-        <select name="divisjon" onchange="form.submit();">
-EOF
-
-$q = $dbh->prepare('SELECT DISTINCT(divisjon) FROM fotballserier WHERE sesong=? ORDER BY divisjon');
-$q->execute($season);
+sub print_footer {
+	my $dbh = shift;
+	wloh_common::output_last_sync($dbh);
 
-my $found_division = 0;
-
-while (my $ref = $q->fetchrow_hashref) {
-	my $d = $ref->{'divisjon'};
-	if ($d == $division) {
-		print "        <option value=\"$d\" selected=\"selected\">$d</option>\n";
-		$found_division = 1;
-	} else {
-		print "        <option value=\"$d\">$d</option>\n";
-	}
+	print <<"EOF";
+  </body>
+</html>
+EOF
 }
 
-$division = 1 if (!$found_division);
+my $aux_parms = get_auxillary_parameters($dbh);
+my $match_stddev = $aux_parms->{-2} * sqrt(2.0);
 
-print <<"EOF";
-        </select>
-        Avdeling:
-        <select name="avdeling" onchange="form.submit();">
-EOF
+my $season;
+my $division = $cgi->param('divisjon') // -1;
+my $subdivision = $cgi->param('avdeling') // -1;
 
-$q = $dbh->prepare('SELECT DISTINCT(avdeling) FROM fotballserier WHERE sesong=? AND divisjon=? ORDER BY avdeling');
-$q->execute($season, $division);
+my $season = get_max_season($dbh);
+my @divisions = get_divisions($dbh, $season);
+$division = 1 if (!grep { $_ == $division } @divisions);
+my @subdivisions = get_subdivisions($dbh, $season, $division);
+$subdivision = 1 if (!grep { $_ == $subdivision } @subdivisions);
 
-my $found_subdivision = 0;
+get_players_and_ratings($dbh, $season, $division, $subdivision);
+my @matches = get_matches($dbh, $season, $division, $subdivision);
+my $cov = get_covariance_matrix($dbh, keys %players);
 
-while (my $ref = $q->fetchrow_hashref) {
-	my $sd = $ref->{'avdeling'};
-	if ($sd == $subdivision) {
-		print "        <option value=\"$sd\" selected=\"selected\">$sd</option>\n";
-		$found_subdivision = 1;
-	} else {
-		print "        <option value=\"$sd\">$sd</option>\n";
-	}
-}
+print_header($cgi, 'WLoH-plasseringsannsynlighetsberegning');
 
-$subdivision = 1 if (!$found_subdivision);
+POSIX::setlocale(&POSIX::LC_ALL, 'nb_NO.UTF-8');
+printf <<"EOF", $match_stddev;
+    <h1>WLoH-plasseringsannsynlighetsberegning</h1>
 
-print <<"EOF";
-        </select>
-        <input type="submit" value="Vis" />
-      </p>
-    </form>
-EOF
+    <p><em>Dette er et hobbyprosjekt fra tredjepart, og ikke en offisiell del av
+      <a href="http://wordfeud.aasmul.net/">Wordfeud Leage of Honour</a>.</em></p>
 
-# Get players and ratings
-$q = $dbh->prepare('SELECT fotballdeltagere.id,fotballdeltagere.navn,rating FROM fotballdeltagere JOIN fotballserier ON fotballdeltagere.serie=fotballserier.nr JOIN ratings ON fotballdeltagere.id=ratings.id AND sesong=? AND divisjon=? AND avdeling=?');
-$q->execute($season, $division, $subdivision);
+    <p>Beregningen tar ikke hensyn til ujevn spillestyrke, ting som er sagt i forumet e.l.;
+      den antar at samtlige uspilte kamper trekkes fra en normalfordeling med standardavvik
+      %.1f poeng. Sannsynlighetene kan summere til andre tall enn 100%% pga. avrunding.
+      Tallene vil variere litt fra gang til gang fordi utregningen skjer ved randomisering.</p>
 
-while (my $ref = $q->fetchrow_hashref) {
-	my $id = $ref->{'id'};
-	$players{$id} = sanitize(Encode::decode_utf8($ref->{'navn'}));
-	$ratings{$id} = $ref->{'rating'};
-}
-$q->finish;
-
-$q = $dbh->prepare('
-SELECT
-  d1.id AS p1, d2.id AS p2, maalfor AS score1, maalmot AS score2
-FROM fotballresultater r
-  JOIN fotballserier s ON r.serie=s.nr
-  JOIN fotballdeltagere d1 ON r.lagrecno=d1.nr AND r.serie=d1.serie
-  JOIN fotballdeltagere d2 ON r.motstander=d2.nr AND r.serie=d2.serie
-WHERE
-  sesong=? AND divisjon=? AND avdeling=?
-  AND lagrecno > motstander
-');
-$q->execute($season, $division, $subdivision);
-
-while (my $ref = $q->fetchrow_hashref) {
-	push @matches, [ $ref->{'p1'}, $ref->{'p2'}, $ref->{'score1'}, $ref->{'score2'} ];
-}
-$q->finish;
+    <p>Spillerne er sortert etter nick.</p>
+EOF
 
+print_division_selector($dbh, \@divisions, \@subdivisions, $division, $subdivision);
 
-make_table({});
+my $max_division = $divisions[$#divisions];
+my $lowest_division = ($division == $max_division);
+make_table($aux_parms, $match_stddev, $lowest_division, {}, {});
 
 print <<"EOF";
-    <p>Under er en variant som pr&oslash;ver &aring; ta relativ spillestyrke med i betraktningen.
-      Disse er basert p&aring; WLoH-data og oppdateres hver hele time (takk til Lobotommy for tilgang!),
-      men modellen er forel&oslash;pig ikke fullstendig tunet.</p>
+    <p>Under er en variant som tar relativ spillestyrke med i beregningen;
+      se <a href="/rating">ratingsiden</a>.</p>
 EOF
 
-make_table(\%ratings);
+make_table($aux_parms, $match_stddev, $lowest_division, \%ratings, $cov);
 
-print << "EOF";
-    </table>
-  </body>
-</html>
-EOF
+my $avg_rating = find_avg_rating(\%ratings);
+printf "    <p>Gjennomsnittlig rating i denne avdelingen er <strong>%.1f</strong>.</p>\n", $avg_rating;
+
+print_footer($dbh);