--- trunk/irc-logger.pl	2006/06/19 11:32:16	32
+++ trunk/bin/irc-logger.pl	2007/03/18 15:37:05	50
@@ -10,6 +10,20 @@
 
 ./irc-logger.pl
 
+=head2 Options
+
+=over 4
+
+=item --import-dircproxy=filename
+
+Import log from C<dircproxy> to C<irc-logger> database
+
+=item --log=irc-logger.log
+
+Name of log file
+
+=back
+
 =head1 DESCRIPTION
 
 log all conversation on irc channel
@@ -18,13 +32,17 @@
 
 ## CONFIG
 
+my $HOSTNAME = `hostname`;
+
 my $NICK = 'irc-logger';
+$NICK .= '-dev' if ($HOSTNAME =~ m/llin/);
 my $CONNECT =
   {Server => 'irc.freenode.net',
    Nick => $NICK,
    Ircname => "try /msg $NICK help",
   };
 my $CHANNEL = '#razmjenavjestina';
+$CHANNEL = '#irc-logger' if ($HOSTNAME =~ m/llin/);
 my $IRC_ALIAS = "log";
 
 my %FOLLOWS =
@@ -36,6 +54,9 @@
 my $DSN = 'DBI:Pg:dbname=' . $NICK;
 
 my $ENCODING = 'ISO-8859-2';
+my $TIMESTAMP = '%Y-%m-%d %H:%M:%S';
+
+my $sleep_on_error = 5;
 
 ## END CONFIG
 
@@ -48,17 +69,29 @@
 use Regexp::Common qw /URI/;
 use CGI::Simple;
 use HTML::TagCloud;
+use POSIX qw/strftime/;
+use HTML::CalendarMonthSimple;
+use Getopt::Long;
+use DateTime;
+use Data::Dump qw/dump/;
+
+my $import_dircproxy;
+my $log_path;
+GetOptions(
+	'import-dircproxy:s' => \$import_dircproxy,
+	'log:s' => \$log_path,
+);
 
-my $dbh = DBI->connect($DSN,"","", { RaiseError => 1, AutoCommit => 1 }) || die $DBI::errstr;
+open(STDOUT, '>', $log_path) || warn "can't redirect log to $log_path: $!";
 
-eval {
-	$dbh->do(qq{ select count(*) from log });
-};
+sub _log {
+	print strftime($TIMESTAMP,localtime()), ' ', join(" ",@_), $/;
+}
 
-if ($@) {
-	warn "creating database table in $DSN\n";
-	$dbh->do(<<'_SQL_SCHEMA_');
+my $dbh = DBI->connect($DSN,"","", { RaiseError => 1, AutoCommit => 1 }) || die $DBI::errstr;
 
+my $sql_schema = {
+	log => '
 create table log (
 	id serial,
 	time timestamp default now(),
@@ -72,16 +105,87 @@
 create index log_time on log(time);
 create index log_channel on log(channel);
 create index log_nick on log(nick);
+	',
+	meta => '
+create table meta (
+	nick text not null,
+	channel text not null,
+	name text not null,
+	value text,
+	changed timestamp default now(),
+	primary key(nick,channel,name)
+);
+	',
+};
+
+foreach my $table ( keys %$sql_schema ) {
+
+	eval {
+		$dbh->do(qq{ select count(*) from $table });
+	};
 
-_SQL_SCHEMA_
+	if ($@) {
+		warn "creating database table $table in $DSN\n";
+		$dbh->do( $sql_schema->{ $table } );
+	}
 }
 
+
+=head2 meta
+
+Set or get some meta data into database
+
+	meta('nick','channel','var_name', $var_value );
+
+	$var_value = meta('nick','channel','var_name');
+	( $var_value, $changed ) = meta('nick','channel','var_name');
+
+=cut
+
+sub meta {
+	my ($nick,$channel,$name,$value) = @_;
+
+	# normalize channel name
+	$channel =~ s/^#//;
+
+	if (defined($value)) {
+
+		my $sth = $dbh->prepare(qq{ update meta set value = ?, changed = now() where nick = ? and channel = ? and name = ? });
+
+		eval { $sth->execute( $value, $nick, $channel, $name ) };
+
+		# error or no result
+		if ( $@ || ! $sth->rows ) {
+			$sth = $dbh->prepare(qq{ insert into meta (value,nick,channel,name,changed) values (?,?,?,?,now()) });
+			$sth->execute( $value, $nick, $channel, $name );
+			_log "created $nick/$channel/$name = $value";
+		} else {
+			_log "updated $nick/$channel/$name = $value ";
+		}
+
+		return $value;
+
+	} else {
+
+		my $sth = $dbh->prepare(qq{ select value,changed from meta where nick = ? and channel = ? and name = ? });
+		$sth->execute( $nick, $channel, $name );
+		my ($v,$c) = $sth->fetchrow_array;
+		_log "fetched $nick/$channel/$name = $v [$c]";
+		return ($v,$c) if wantarray;
+		return $v;
+
+	}
+}
+
+
+
 my $sth = $dbh->prepare(qq{
 insert into log
-	(channel, me, nick, message)
-values (?,?,?,?)
+	(channel, me, nick, message, time)
+values (?,?,?,?,?)
 });
 
+
 my $tags;
 my $tag_regex = '\b([\w-_]+)//';
 
@@ -104,6 +208,7 @@
 		}
 	},
 	context => 5,
+	full_rows => 1,
  );
 
 Order is important. Fields are first passed through C<filter> (if available) and
@@ -111,13 +216,14 @@
 
 C<context> defines number of messages around each search hit for display.
 
+C<full_rows> will return database rows for each result with C<date>, C<time>, C<channel>,
+C<me>, C<nick> and C<message> keys.
+
 =cut
 
 sub get_from_log {
 	my $args = {@_};
 
-	$args->{limit} ||= 10;
-
 	$args->{fmt} ||= {
 		date => '[%s] ',
 		time => '{%s} ',
@@ -150,18 +256,22 @@
 
 	$sql .= " where message ilike ? or nick ilike ? " if ($args->{search});
 	$sql .= " where id in (" . join(",", @{ $tags->{ $args->{tag} } }) . ") " if ($args->{tag} && $tags->{ $args->{tag} });
+	$sql .= " where date(time) = ? " if ($args->{date});
 	$sql .= " order by log.time desc";
-	$sql .= " limit " . $args->{limit};
+	$sql .= " limit " . $args->{limit} if ($args->{limit});
 
 	my $sth = $dbh->prepare( $sql );
 	if (my $search = $args->{search}) {
 		$search =~ s/^\s+//;
 		$search =~ s/\s+$//;
 		$sth->execute( ( '%' . $search . '%' ) x 2 );
-		warn "search for '$search' returned ", $sth->rows, " results ", $context || '', "\n";
+		_log "search for '$search' returned ", $sth->rows, " results ", $context || '';
 	} elsif (my $tag = $args->{tag}) {
 		$sth->execute();
-		warn "tag '$tag' returned ", $sth->rows, " results ", $context || '', "\n";
+		_log "tag '$tag' returned ", $sth->rows, " results ", $context || '';
+	} elsif (my $date = $args->{date}) {
+		$sth->execute($date);
+		_log "found ", $sth->rows, " messages for date $date ", $context || '';
 	} else {
 		$sth->execute();
 	}
@@ -178,6 +288,13 @@
 		unshift @rows, $row;
 	}
 
+	# normalize nick names
+	map {
+		$_->{nick} =~ s/^_*(.*?)_*$/$1/
+	} @rows;
+
+	return @rows if ($args->{full_rows});
+
 	my @msgs = (
 		"Showing " . ($#rows + 1) . " messages..."
 	);
@@ -206,27 +323,37 @@
 		}
 	}
 
+	# sprintf which can take coderef as first parametar
+	sub cr_sprintf {
+		my $fmt = shift || return;
+		if (ref($fmt) eq 'CODE') {
+			$fmt->(@_);
+		} else {
+			sprintf($fmt, @_);
+		}
+	}
+
 	foreach my $row (@rows) {
 
 		$row->{time} =~ s#\.\d+##;
 
 		my $msg = '';
 
-		$msg = sprintf($args->{fmt}->{date}, $row->{date}) . ' ' if ($last_row->{date} ne $row->{date});
+		$msg = cr_sprintf($args->{fmt}->{date}, $row->{date}) . ' ' if ($last_row->{date} ne $row->{date});
 		my $t = $row->{time};
 
 		if ($last_row->{channel} ne $row->{channel}) {
-			$msg .= sprintf($args->{fmt}->{time_channel}, $t, $row->{channel});
+			$msg .= cr_sprintf($args->{fmt}->{time_channel}, $t, $row->{channel});
 		} else {
-			$msg .= sprintf($args->{fmt}->{time}, $t);
+			$msg .= cr_sprintf($args->{fmt}->{time}, $t);
 		}
 
 		my $append = 1;
 
 		my $nick = $row->{nick};
-		if ($nick =~ s/^_*(.*?)_*$/$1/) {
-			$row->{nick} = $nick;
-		}
+#		if ($nick =~ s/^_*(.*?)_*$/$1/) {
+#			$row->{nick} = $nick;
+#		}
 
 		if ($last_row->{nick} ne $nick) {
 			# obfu way to find format for me_nick if needed or fallback to default
@@ -235,19 +362,19 @@
 
 			$nick = $args->{filter}->{nick}->($nick) if (ref($args->{filter}->{nick}) eq 'CODE');
 
-			$msg .= sprintf( $fmt, $nick );
+			$msg .= cr_sprintf( $fmt, $nick );
 			$append = 0;
 		}
 
 		$args->{fmt}->{message} ||= '%s';
 		if (ref($args->{filter}->{message}) eq 'CODE') {
-			$msg .= sprintf($args->{fmt}->{message},
+			$msg .= cr_sprintf($args->{fmt}->{message},
 				$args->{filter}->{message}->(
 					$row->{message}
 				)
 			);
 		} else {
-			$msg .= sprintf($args->{fmt}->{message}, $row->{message});
+			$msg .= cr_sprintf($args->{fmt}->{message}, $row->{message});
 		}
 
 		if ($append && @msgs) {
@@ -262,14 +389,134 @@
 	return @msgs;
 }
 
+# tags support
+
+my $cloud = HTML::TagCloud->new;
+
+=head2 add_tag
+
+ add_tag( id => 42, message => 'irc message' );
+
+=cut
+
+sub add_tag {
+	my $arg = {@_};
+
+	return unless ($arg->{id} && $arg->{message});
+
+	my $m = $arg->{message};
+	from_to('UTF-8', 'iso-8859-2', $m) if (is_utf8($m));
+
+	while ($m =~ s#$tag_regex##s) {
+		my $tag = $1;
+		next if (! $tag || $tag =~ m/https?:/i);
+		push @{ $tags->{$tag} }, $arg->{id};
+		#warn "+tag $tag: $arg->{id}\n";
+		$cloud->add($tag, "?tag=$tag", scalar @{$tags->{$tag}} + 1);
+	}
+}
+
+=head2 seed_tags
+
+Read all tags from database and create in-memory cache for tags
+
+=cut
+
+sub seed_tags {
+	my $sth = $dbh->prepare(qq{ select id,message from log where message like '%//%' });
+	$sth->execute;
+	while (my $row = $sth->fetchrow_hashref) {
+		add_tag( %$row );
+	}
+
+	foreach my $tag (keys %$tags) {
+		$cloud->add($tag, "?tag=$tag", scalar @{$tags->{$tag}} + 1);
+	}
+}
+
+seed_tags;
+
+
+=head2 save_message
+
+  save_message(
+  	channel => '#foobar',
+	me => 0,
+	nick => 'dpavlin',
+	msg => 'test message',
+	time => '2006-06-25 18:57:18',
+  );
+
+C<time> is optional, it will use C<< now() >> if it's not available.
+
+C<me> if not specified will be C<0> (not C</me> message)
+
+=cut
+
+sub save_message {
+	my $a = {@_};
+	$a->{me} ||= 0;
+	$a->{time} ||= strftime($TIMESTAMP,localtime());
+
+	_log
+		$a->{channel}, " ",
+		$a->{me} ? "***" . $a->{nick} : "<" . $a->{nick} . ">",
+		" " . $a->{msg};
+
+	from_to($a->{msg}, 'UTF-8', $ENCODING);
+
+	$sth->execute($a->{channel}, $a->{me}, $a->{nick}, $a->{msg}, $a->{time});
+	add_tag( id => $dbh->last_insert_id(undef,undef,"log",undef),
+		message => $a->{msg});
+}
+
+
+if ($import_dircproxy) {
+	open(my $l, $import_dircproxy) || die "can't open $import_dircproxy: $!";
+	warn "importing $import_dircproxy...\n";
+	my $tz_offset = 2 * 60 * 60;	# TZ GMT+2
+	while(<$l>) {
+		chomp;
+		if (/^@(\d+)\s(\S+)\s(.+)$/) {
+			my ($time, $nick, $msg) = ($1,$2,$3);
+
+			my $dt = DateTime->from_epoch( epoch => $time + $tz_offset );
+
+			my $me = 0;
+			$me = 1 if ($nick =~ m/^\[\S+]/);
+			$nick =~ s/^[\[<]([^!]+).*$/$1/;
+
+			$msg =~ s/^ACTION\s+// if ($me);
+
+			save_message(
+				channel => $CHANNEL,
+				me => $me,
+				nick => $nick,
+				msg => $msg,
+				time => $dt->ymd . " " . $dt->hms,
+			) if ($nick !~ m/^-/);
+
+		} else {
+			_log "can't parse: $_";
+		}
+	}
+	close($l);
+	warn "import over\n";
+	exit;
+}
+
+
+#
+# POE handing part
+#
 
 my $SKIPPING = 0;               # if skipping, how many we've done
 my $SEND_QUEUE;                 # cache
+my $ping;						# ping stats
 
 POE::Component::IRC->new($IRC_ALIAS);
 
-POE::Session->create
-  (inline_states =>
+POE::Session->create( inline_states =>
    {_start => sub {      
 		$_[KERNEL]->post($IRC_ALIAS => register => 'all');
 		$_[KERNEL]->post($IRC_ALIAS => connect => $CONNECT);
@@ -287,12 +534,8 @@
 		my $channel = $_[ARG1]->[0];
 		my $msg = $_[ARG2];
 
-		from_to($msg, 'UTF-8', $ENCODING);
-
-		print "$channel: <$nick> $msg\n";
-		$sth->execute($channel, 0, $nick, $msg);
-		add_tag( id => $dbh->last_insert_id(undef,undef,"log",undef),
-			message => $msg);
+		save_message( channel => $channel, me => 0, nick => $nick, msg => $msg);
+		meta( $nick, $channel, 'last-msg', $msg );
     },
     irc_ctcp_action => sub {
 		my $kernel = $_[KERNEL];
@@ -300,23 +543,39 @@
 		my $channel = $_[ARG1]->[0];
 		my $msg = $_[ARG2];
 
-		from_to($msg, 'UTF-8', $ENCODING);
+		save_message( channel => $channel, me => 1, nick => $nick, msg => $msg);
+
+		if ( my $twitter = ( $nick, $channel, 'twitter' ) ) {
+			_log("FIXME: send twitter for $nick on $channel [$twitter]");
+		}
 
-		print "$channel ***$nick $msg\n";
-		$sth->execute($channel, 1, $nick, $msg);
-		add_tag( id => $dbh->last_insert_id(undef,undef,"log",undef),
-			message => $msg);
     },
+	irc_ping => sub {
+		warn "pong ", $_[ARG0], $/;
+		$ping->{ $_[ARG0] }++;
+	},
+	irc_invite => sub {
+		my $kernel = $_[KERNEL];
+		my $nick = (split /!/, $_[ARG0])[0];
+		my $channel = $_[ARG1];
+
+		warn "invited to $channel by $nick";
+
+		$_[KERNEL]->post( $IRC_ALIAS => privmsg => $nick, "how nice of you to invite me to $channel, I'll be right there..." );
+		$_[KERNEL]->post($IRC_ALIAS => join => $channel);
+
+	},
 	irc_msg => sub {
 		my $kernel = $_[KERNEL];
 		my $nick = (split /!/, $_[ARG0])[0];
 		my $msg = $_[ARG2];
+		my $channel = $_[ARG1]->[0];
 		from_to($msg, 'UTF-8', $ENCODING);
 
 		my $res = "unknown command '$msg', try /msg $NICK help!";
 		my @out;
 
-		print "<< $msg\n";
+		_log "<< $msg";
 
 		if ($msg =~ m/^help/i) {
 
@@ -324,7 +583,7 @@
 
 		} elsif ($msg =~ m/^msg\s+(\S+)\s+(.*)$/i) {
 
-			print ">> /msg $1 $2\n";
+			_log ">> /msg $1 $2";
 			$_[KERNEL]->post( $IRC_ALIAS => privmsg => $1, $2 );
 			$res = '';
 
@@ -333,19 +592,28 @@
 			my $nr = $1 || 10;
 
 			my $sth = $dbh->prepare(qq{
-				select nick,count(*) from log group by nick order by count desc limit $nr
+				select
+					nick,
+					count(*) as count,
+					sum(length(message)) as len
+				from log
+				group by nick
+				order by len desc,count desc
+				limit $nr
 			});
 			$sth->execute();
 			$res = "Top $nr users: ";
 			my @users;
 			while (my $row = $sth->fetchrow_hashref) {
-				push @users,$row->{nick} . ': ' . $row->{count};
+				push @users,$row->{nick} . ': ' . $row->{count} . '/' . $row->{len} . '=' . sprintf("%.2f", $row->{len}/$row->{count});
 			}
 			$res .= join(" | ", @users);
 		} elsif ($msg =~ m/^last.*?\s*(\d*)/i) {
 
-			foreach my $res (get_from_log( limit => $1 )) {
-				print "last: $res\n";
+			my $limit = $1 || meta( $nick, $channel, 'last-size' ) || 10;
+
+			foreach my $res (get_from_log( limit => $limit )) {
+				_log "last: $res";
 				from_to($res, $ENCODING, 'UTF-8');
 				$_[KERNEL]->post( $IRC_ALIAS => privmsg => $nick, $res );
 			}
@@ -360,65 +628,114 @@
 					limit => 20,
 					search => $what,
 				)) {
-				print "search [$what]: $res\n";
+				_log "search [$what]: $res";
 				from_to($res, $ENCODING, 'UTF-8');
 				$_[KERNEL]->post( $IRC_ALIAS => privmsg => $nick, $res );
 			}
 
 			$res = '';
 
+		} elsif ($msg =~ m/^(?:count|poll)\s+(.*)(?:\s+(\d+))?\s*$/i) {
+
+			my ($what,$limit) = ($1,$2);
+			$limit ||= 100;
+
+			my $stat;
+
+			foreach my $res (get_from_log(
+					limit => $limit,
+					search => $what,
+					full_rows => 1,
+				)) {
+				while ($res->{message} =~ s/\Q$what\E(\+|\-)//) {
+					$stat->{vote}->{$1}++;
+					$stat->{from}->{ $res->{nick} }++;
+				}
+			}
+
+			my @nicks;
+			foreach my $nick (sort { $stat->{from}->{$a} <=> $stat->{from}->{$b} } keys %{ $stat->{from} }) {
+				push @nicks, $nick . ( $stat->{from}->{$nick} == 1 ? '' :
+					"(" . $stat->{from}->{$nick} . ")"
+				);
+			}
+
+			$res =
+				"$what ++ " . ( $stat->{vote}->{'+'} || 0 ) .
+				" : " . ( $stat->{vote}->{'-'} || 0 ) . " --" .
+				" from " . ( join(", ", @nicks) || 'nobody' );
+
+			$_[KERNEL]->post( $IRC_ALIAS => notice => $nick, $res );
+
+		} elsif ($msg =~ m/^ping/) {
+			$res = "ping = " . dump( $ping );
+		} elsif ($msg =~ m/^(?:twitter)\s+(\S+)\s+(.*?)/) {
+			if ( defined( $2 ) ) {
+				meta($nick, $channel, 'twitter', "$1\t$2");
+				$res = "saved twitter auth for $1 -- /me on $channel will auto-update twitter status";
+			} else {
+				meta($nick, $channel, 'twitter', '' );
+				$res = "removed twitter status update for /me on $channel";
+			}
+		} elsif ($msg =~ m/^conf(?:ig)*\s*(last-size)*\s*(\d*)/) {
+			if ( ! defined( $1 ) ) {
+				my $sth = $dbh->prepare(qq{ select name,value,changed from meta where nick = ? and channel = ? });
+				$sth->execute( $nick, $channel );
+				$res = "config for $nick ";
+				while ( my ($n,$v) = $sth->fetchrow_array ) {
+					$res .= "| $n = $v";
+				}
+			} elsif ( defined( $2 ) ) {
+				meta( $nick, $channel, $1, $2 );
+				$res = "saved $1 = $2";
+			} else {
+				my $val = meta( $nick, $channel, $1 );
+				$res = "current $1 = " . ( $val ? $val : 'undefined' );
+			}
 		}
 
 		if ($res) {
-			print ">> [$nick] $res\n";
+			_log ">> [$nick] $res";
 			from_to($res, $ENCODING, 'UTF-8');
 			$_[KERNEL]->post( $IRC_ALIAS => privmsg => $nick, $res );
 		}
 
 	},
 	irc_477 => sub {
-		print "# irc_477: ",$_[ARG1], "\n";
+		_log "# irc_477: ",$_[ARG1];
 		$_[KERNEL]->post( $IRC_ALIAS => privmsg => 'nickserv', "register $NICK" );
 	},
 	irc_505 => sub {
-		print "# irc_505: ",$_[ARG1], "\n";
+		_log "# irc_505: ",$_[ARG1];
 		$_[KERNEL]->post( $IRC_ALIAS => privmsg => 'nickserv', "register $NICK" );
 #		$_[KERNEL]->post( $IRC_ALIAS => privmsg => 'nickserv', "set hide email on" );
 #		$_[KERNEL]->post( $IRC_ALIAS => privmsg => 'nickserv', "set email dpavlin\@rot13.org" );
 	},
 	irc_registered => sub {
-		warn "## indetify $NICK\n";
+		_log "## registrated $NICK";
 		$_[KERNEL]->post( $IRC_ALIAS => privmsg => 'nickserv', "IDENTIFY $NICK" );
 	},
+	irc_disconnected => sub {
+		_log "## disconnected, reconnecting again";
+		$_[KERNEL]->post($IRC_ALIAS => connect => $CONNECT);
+	},
+	irc_socketerr => sub {
+		_log "## socket error... sleeping for $sleep_on_error seconds and retry";
+		sleep($sleep_on_error);
+		$_[KERNEL]->post($IRC_ALIAS => connect => $CONNECT);
+	},
 #	irc_433 => sub {
 #		print "# irc_433: ",$_[ARG1], "\n";
 #		warn "## indetify $NICK\n";
 #		$_[KERNEL]->post( $IRC_ALIAS => privmsg => 'nickserv', "IDENTIFY $NICK" );
 #	},
-	irc_372 => sub {
-		print "MOTD: ", $_[ARG1], "\n";
-	},
-	irc_snotice => sub {
-		print "(server notice): ", $_[ARG0], "\n";
-	},
-    (map
-     {
-       ;"irc_$_" => sub { }}
-     qw(
-		)),
-#	join
-#     	ctcp_version
-#	connected snotice ctcp_action ping notice mode part quit
-#	001 002 003 004 005
-#	250 251 252 253 254 265 266
-#	332 333 353 366 372 375 376
-#	477
     _child => sub {},
     _default => sub {
-      printf "%s: session %s caught an unhandled %s event.\n",
-        scalar localtime(), $_[SESSION]->ID, $_[ARG0];
-      print "The $_[ARG0] event was given these parameters: ",
-        join(" ", map({"ARRAY" eq ref $_ ? "[@$_]" : "$_"} @{$_[ARG1]})), "\n";
+		_log sprintf "sID:%s %s %s",
+			$_[SESSION]->ID, $_[ARG0],
+			ref($_[ARG1]) eq "ARRAY"	?	join(",", map { ref($_) eq "ARRAY" ? join(";", @{$_}) : $_ } @{ $_[ARG1] })	:
+			$_[ARG1]					?	$_[ARG1]					:
+			"";
       0;                        # false for signals
     },
     my_add => sub {
@@ -484,53 +801,6 @@
    },
   );
 
-# tags support
-
-my $cloud = HTML::TagCloud->new;
-
-=head2 add_tag
-
- add_tag( id => 42, message => 'irc message' );
-
-=cut
-
-sub add_tag {
-	my $arg = {@_};
-
-	return unless ($arg->{id} && $arg->{message});
-
-	my $m = $arg->{message};
-	from_to('UTF-8', 'iso-8859-2', $m) if (is_utf8($m));
-
-	while ($m =~ s#$tag_regex##s) {
-		my $tag = $1;
-		next if (! $tag || $tag =~ m/https?:/i);
-		push @{ $tags->{$tag} }, $arg->{id};
-		warn "+tag $tag: $arg->{id}\n";
-		$cloud->add($tag, "?tag=$tag", scalar @{$tags->{$tag}} + 1);
-	}
-}
-
-=head2 seed_tags
-
-Read all tags from database and create in-memory cache for tags
-
-=cut
-
-sub seed_tags {
-	my $sth = $dbh->prepare(qq{ select id,message from log where message like '%//%' });
-	$sth->execute;
-	while (my $row = $sth->fetchrow_hashref) {
-		add_tag( %$row );
-	}
-
-	foreach my $tag (keys %$tags) {
-		$cloud->add($tag, "?tag=$tag", scalar @{$tags->{$tag}} + 1);
-	}
-}
-
-seed_tags;
-
 # http server
 
 my $httpd = POE::Component::Server::HTTP->new(
@@ -556,6 +826,7 @@
 .col-4 { background: #ff66ff }
 a:link.tag, a:visited.tag { border: 1px dashed #ccc; backgound: #ccc; text-decoration: none }
 a:hover.tag { border: 1px solid #eee }
+hr { border: 1px dashed #ccc; height: 1px; clear: both; }
 _END_OF_STYLE_
 
 my $max_color = 4;
@@ -579,7 +850,7 @@
 
 	my $search = $q->param('search') || $q->param('grep') || '';
 
-	$response->content(
+	my $html =
 		qq{<html><head><title>$NICK</title><style type="text/css">$style} .
 		$cloud->css .
 		qq{</style></head><body>} .
@@ -590,14 +861,44 @@
 		</form>
 		} .
 		$cloud->html(500) .
-		qq{<p>} .
-		join("</p><p>",
+		qq{<p>};
+	if ($request->url =~ m#/history#) {
+		my $sth = $dbh->prepare(qq{
+			select date(time) as date,count(*) as nr
+				from log
+				group by date(time)
+				order by date(time) desc
+		});
+		$sth->execute();
+		my ($l_yyyy,$l_mm) = (0,0);
+		my $cal;
+		while (my $row = $sth->fetchrow_hashref) {
+			# this is probably PostgreSQL specific, expects ISO date
+			my ($yyyy,$mm,$dd) = split(/-/, $row->{date});
+			if ($yyyy != $l_yyyy || $mm != $l_mm) {
+				$html .= $cal->as_HTML() if ($cal);
+				$cal = new HTML::CalendarMonthSimple('month'=>$mm,'year'=>$yyyy);
+				$cal->border(2);
+				($l_yyyy,$l_mm) = ($yyyy,$mm);
+			}
+			$cal->setcontent($dd, qq{
+				<a href="/?date=$row->{date}">$row->{nr}</a>
+			});
+		}
+		$html .= $cal->as_HTML() if ($cal);
+
+	} else {
+		$html .= join("</p><p>",
 			get_from_log(
-				limit => $q->param('last') || 100,
+				limit => $q->param('last') || $q->param('date') ? undef : 100,
 				search => $search || undef,
 				tag => $q->param('tag') || undef,
+				date => $q->param('date') || undef,
 				fmt => {
-					date => '<hr size="1" style="clear: both;"/><div class="date">%s</div> ',
+					date => sub {
+						my $date = shift || return;
+						qq{<hr/><div class="date"><a href="/?date=$date">$date</a></div>};
+					},
 					time => '<span class="time">%s</span> ',
 					time_channel => '<span class="channel">%s %s</span> ',
 					nick => '%s:&nbsp;',
@@ -624,9 +925,15 @@
 					},
 				},
 			)
-		) .
-		qq{</p></body></html>}
-	);
+		);
+	}
+
+	$html .= qq{</p>
+	<hr/>
+	<p>See <a href="/history">history</a> of all messages.</p>
+	</body></html>};
+
+	$response->content( $html );
 	return RC_OK;
 }