package Book::Eliza;

use strict;
use warnings FATAL => 'all';

use Apache::Connection ();
use APR::Socket ();

require Chatbot::Eliza;

use Apache::Const -compile => 'OK';

use constant BUFF_LEN => 1024;

my $eliza = new Chatbot::Eliza;

sub handler {
    my $c = shift;
    my $socket = $c->client_socket;

    my $buff;
    my $last = 0;
    while (1) {
        my($rlen, $wlen);
        $rlen = BUFF_LEN;
        $socket->recv($buff, $rlen);
        last if $rlen <= 0;
        
        # \r is sent instead of \n if the client is talking over telnet
        $buff =~ s/[\r\n]*$//;
        $last++ if $buff =~ /good bye/i;
        $buff = $eliza->transform( $buff ) . "\n\n";
        $socket->send($buff, length $buff);
        last if $last;
    }

    Apache::OK;
}
1;