#!/usr/local/bin/perl

use English;
use IO::Socket;

my $JSUCC = 0;
my $JABORT = 33;
my $JNOSPOOL = 38;
my $JNOPRINT = 39;

my $debug = 0;
my $optind;

# pull out the options
my($key,$value,$opt,$long,$opt_c);

for( $i = 0; $i < @ARGV; ++$i ){
    $opt = $ARGV[$i];
    print STDERR "XX opt= $opt\n" if $debug;
    if( $opt eq '-c' ){
        $opt_c = 1;
    } elsif( ($key, $value) = ($opt =~ /^-(.)(.*)/) ){
        if( $value eq "" ){
            $value = $ARGV[++$i];
        }
        ${"opt_$key"} = $value;
        print STDERR "XX opt_$key = " . ${"opt_$key"} . "\n" if $debug;
    } else {
        $optind = $i;
        last;
    }
    print STDERR "XX opt_P = $opt_P\n" if $debug;
}

$long = 0;  # short

if( defined($opt_T) ){
    print STDERR "XX CHECK_REMOTE opt_T=$opt_T\n" if $debug;
    if( $opt_T =~ /debug/ ){
        $debug = 1;
    }
    if( $opt_T =~ /short/ ){
        $long = 1;
    }
    if( $opt_T =~ /long/ ){
        $long = 0;
    }
}

print STDERR "XX CHECK_REMOTE opt_P=$opt_P\n" if $debug;
print STDERR "XX CHECK_REMOTE " . join(" ",@ARGV) . "\n" if $debug;

if( !defined($opt_P) ){
    print STDERR "$0: no -P value\n";
    exit( $JABORT );
}

$printer = $opt_P;

while( checkstatus( $printer, $long ) ){
    print STDERR "XX CHECK_REMOTE sleeping\n" if $debug;
    sleep(10);
}

exit $JSUCC;

sub checkstatus {
    my ($printer,$long) = @_;
    my ($remote,$port);
    my ($count, $socket, $line);

    if( $long ){
        $long = 4;
    } else {
        $long = 3;
    }
    if( $printer =~ /@/ ){
        ($printer,$remote) = $printer =~ m/(.*)@(.*)/;
    }
    $remote="localhost" unless $remote;

    if( $remote =~ /%/ ){
        ($remote,$port) = $remote =~ m/(.*)%(.*)/;
    }
    $port = 515 unless $port;
    print STDERR "XX CHECK_REMOTE remote='$remote', port='$port', pr='$printer', op='$long'\n" if $debug;

    $socket = getconnection( $remote, $port );

    $count = -1;
    # send the command
    printf $socket "%c%s\n", $long, $printer;

    while ( defined( $line = <$socket>) && $count < 0 ){
        chomp $line;
        print STDERR "XX CHECKREMOTE '$line'\n" if $debug;
        if( $line =~ /printing disa/ ){
            print STDERR "XX CHECKREMOTE printing disable\n" if $debug;
            exit $JNOPRINT;
        } elsif( $line =~ /spooling disa/ ){
            print STDERR "XX CHECKREMOTE printing disable\n" if $debug;
            exit $JNOSPOOL;
        } elsif( $line =~ /([0-9]*)\s+job.?$/ ){
            $count = $1;
            print STDERR "XX CHECKREMOTE $count jobs\n" if $debug;
        }
    }
    close $socket;
    if( $count < 0 ){
        print STDERR "CHECKREMOTE cannot decode status\n";
        exit $JABORT;
    }
    return $count;
}

sub getconnection {
    my ($remote,$port) = @_;
    my ($socket);
    print STDERR "XX CHECK_REMOTE remote='$remote', port=$port\n" if $debug;
    $socket = IO::Socket::INET->new(
        Proto => "tcp",
        PeerAddr => $remote,
        PeerPort => $port,
        );
    if( !$socket ){
        print STDERR "CHECK_REMOTE IO::Socket::INET failed - $!\n";
        exit $JABORT;
    }
    $socket->autoflush(1);
    $socket;
}