package Apache::hinttags; 

use strict;
use Apache::lonnet;

sub BEGIN {
  &Apache::lonxml::register('Apache::hinttags',('hintgroup','hintpart'));
}


sub start_hintgroup {
  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;
  my $id=$Apache::inputtags::part;
  my $numtries=$Apache::lonhomework::history{"resource.$id.tries"};
  if ( $numtries eq '') { $numtries = 0; }
  my $hinttries=&Apache::lonnet::EXT("resource.$id.hinttries");
  if ( $hinttries eq '') { $hinttries = 1; }
  &Apache::lonxml::debug("found :$id:$numtries:$hinttries:");
  if ( $numtries < $hinttries ) {
    &Apache::lonxml::get_all_text("/hintgroup",$$parser[$#$parser]);
  }
  return '';
}

sub end_hintgroup {
}

# a part shows if it is on, if no specific parts are on, then default shows
sub start_hintpart {
  return '';
  my ($target,$token,$parstack,$parser,$safeeval,$style)=@_;

  my $show ='0';
  if ($target ne 'meta' && $target ne 'grade') {
    my $args ='';
    if ( $#$parstack > -1 ) { $args=$$parstack[$#$parstack]; }
    my $on = &Apache::run::run("{$args;".'return $on}',$safeeval);
    if ( $on eq 'default') {
    } else {
      my (%results) = &Apache::run::run("{$args; return ".'\%'.$on,$safeeval);
      my $key;
      foreach $key (keys %results) {
	&Apache::lonxml::debug("Got $key");
      }
    }
    if (!$show) {
      &Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
    }
  } else {
    &Apache::lonxml::get_all_text("/problem",$$parser[$#$parser]);
  }
  return '';
}

sub end_hintpart {
}

1;
__END__