#!/usr/bin/perl
use lib "../lib";
use Bucky;
use Data::Dumper;
use DB_File;

my $bucky = new Bucky(); # "carbon");

my %index;
tie %index, "DB_File", "gross.db", O_CREAT|O_RDWR, 0666, $DB_HASH ;

event_loop();

sub event_loop
	{
	my $command = "index";
	while (1)
		{
		print "> ";
		$command = line_in();
		last if $command eq "exit";
		search(\%index, $command)
		}
	}
sub search
	{
	my ($index, $string) = @_;
	my $scores = {};
	print "TERMS : ";
	my $terms = parse_terms($string);
	foreach my $term (@$terms)
		{
		print "$term ";
		next unless my $match = $index->{$term};
		my @results = split " ", $match;
		foreach my $result (@results)
			{
			$scores->{$result} ||= {};
			$scores->{$result}->{count}++;
			$scores->{$result}->{terms} ||= {};
			$scores->{$result}->{terms}->{$term}++;
			}
		}
	print "\n";
	my $total = 0;
	foreach my $obj (sort {
			scalar(keys %{$scores->{$b}->{terms}}) <=> scalar(keys %{$scores->{$a}->{terms}}) ||
			$scores->{$b}->{count} <=> $scores->{$a}->{count} } keys %$scores )
		{
		print scalar(keys %{$scores->{$obj}->{terms}}) . "x" . $scores->{$obj}->{count} . "\t" . display_object($obj) . "\n" if $total < 10;
		$total++;
		}
	print "$total total\n";
	}
sub display_object
	{
	my ($obj) = @_;
	my ($type, $id) = split ":", $obj;
	my $thread = $bucky->thread($id);
	my $title = $thread ? $thread->_title : "* * *";
	return $type . " " . $id . "\t" . $title;
	}
sub parse_terms
    {
    my ($s) = @_;
    my @terms = split /(\W+)/, $s;
	my $words = [];
    my $count = 0;
    foreach my $term (@terms)
        {
        if ( $term !~ /\W/ )
            {
            push @$words, $term;
            }
        }
    return $words;
    }

sub show_index
	{
	my ($min) = @_;
	my $max = $min + 24;
	my $i = 0;
	foreach my $thread (@$threads)
		{
		next if $min > $i++;
		last if $max == $i;
		$commands->{$i} = [ \&show_thread, $thread ];
		printf " T%02d  %-70s\n", $i, $thread->{"title"};
		}
	return $max - 1;
	}
sub show_thread
	{
	my ($thread) = @_;
	print $thread->{'title'} . "\n";
	print $thread->{'username'} . " // " . show_date($thread->{createdate}) . "\n";
	my $i = 0;
	foreach my $comment (@$comments)
		{
		next if ($comment->{'thread'} != $thread->{'id'});
		$commands->{++$i} = [ \&show_comment, $comment ];
		printf " c%02d  %-10s %-60s\n", $i, $comment->{"username"}, first_line($comment->{"comment"});
		}
	foreach my $file (@$files)
		{
		next if ($file->{'thread'} != $thread->{'id'});
		printf " f%02d  %-10s %-60s\n", ++$i, $file->{'username'}, $file->{'filename'};
		}
	return 1;
	}
sub show_comment
	{
	my ($comment) = @_;	
	print $comment->{'username'} . " // " . show_date($comment->{date}) . "\n";
	my @lines = split "\n", $comment->{'comment'};
	for (my $i = 0; $i < scalar(@lines); $i++)
		{
		print $lines[$i] . "\n";
		last if $i == 24;
		}
	return 1;
	}
sub show_date
	{
	return scalar localtime(shift);
	}
sub line_in
	{
	return trim(scalar <STDIN>);
	}
sub trim
	{
	my $s = shift;
	$s =~ s/^\s+//;
	$s =~ s/\s+$//;
	return $s;
	}
sub first_line
	{
	my $s = shift;
	$s =~ s/^\s+//;
	$s =~ s/\n//g;
	return substr($s,0,70);
	}