# The LearningOnline Network with CAPA
# Handler to set parameters for assessments
#
# $Id: lonparmset.pm,v 1.189 2005/03/18 15:17:36 www Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
###################################################################
###################################################################

=pod

=head1 NAME

lonparmset - Handler to set parameters for assessments and course

=head1 SYNOPSIS

lonparmset provides an interface to setting course parameters. 

=head1 DESCRIPTION

This module sets coursewide and assessment parameters.

=head1 INTERNAL SUBROUTINES

=over 4

=cut

###################################################################
###################################################################

package Apache::lonparmset;

use strict;
use Apache::lonnet;
use Apache::Constants qw(:common :http REDIRECT);
use Apache::lonhtmlcommon();
use Apache::loncommon;
use GDBM_File;
use Apache::lonhomework;
use Apache::lonxml;
use Apache::lonlocal;

my %courseopt;
my %useropt;
my %parmhash;

my @ids;
my %symbp;
my %mapp;
my %typep;
my %keyp;

my %maptitles;

##################################################
##################################################

=pod

=item parmval

Figure out a cascading parameter.

Inputs:  $what - a parameter spec (incluse part info and name I.E. 0.weight)
         $id   - a bighash Id number
         $def  - the resource's default value   'stupid emacs

Returns:  A list, the first item is the index into the remaining list of items of parm valuse that is the active one, the list consists of parm values at the 11 possible levels

11 - General Course
10 - Map or Folder level in course
9- resource default
8- map default
7 - resource level in course
6 - General for section
5 - Map or Folder level for section
4 - resource level in section
3 - General for specific student
2 - Map or Folder level for specific student
1 - resource level for specific student

=cut

##################################################
##################################################
sub parmval {
    my ($what,$id,$def,$uname,$udom,$csec)=@_;
    my $result='';
    my @outpar=();
# ----------------------------------------------------- Cascading lookup scheme

    my $symbparm=$symbp{$id}.'.'.$what;
    my $mapparm=$mapp{$id}.'___(all).'.$what;

    my $seclevel=$ENV{'request.course.id'}.'.['.$csec.'].'.$what;
    my $seclevelr=$ENV{'request.course.id'}.'.['.$csec.'].'.$symbparm;
    my $seclevelm=$ENV{'request.course.id'}.'.['.$csec.'].'.$mapparm;

    my $courselevel=$ENV{'request.course.id'}.'.'.$what;
    my $courselevelr=$ENV{'request.course.id'}.'.'.$symbparm;
    my $courselevelm=$ENV{'request.course.id'}.'.'.$mapparm;



# --------------------------------------------------------- first, check course

    if (defined($courseopt{$courselevel})) {
	$outpar[11]=$courseopt{$courselevel};
	$result=11;
    }

    if (defined($courseopt{$courselevelm})) {
	$outpar[10]=$courseopt{$courselevelm};
	$result=10;
    }

# ------------------------------------------------------- second, check default

    if (defined($def)) { $outpar[9]=$def; $result=9; }

# ------------------------------------------------------ third, check map parms

    my $thisparm=$parmhash{$symbparm};
    if (defined($thisparm)) { $outpar[8]=$thisparm; $result=8; }

    if (defined($courseopt{$courselevelr})) {
	$outpar[7]=$courseopt{$courselevelr};
	$result=7;
    }

# ------------------------------------------------------ fourth, back to course
    if (defined($csec)) {
        if (defined($courseopt{$seclevel})) {
	    $outpar[6]=$courseopt{$seclevel};
	    $result=6;
	}
        if (defined($courseopt{$seclevelm})) {
	    $outpar[5]=$courseopt{$seclevelm};
	    $result=5;
	}

        if (defined($courseopt{$seclevelr})) {
	    $outpar[4]=$courseopt{$seclevelr};
	    $result=4;
	}
    }

# ---------------------------------------------------------- fifth, check user

    if (defined($uname)) {
	if (defined($useropt{$courselevel})) {
	    $outpar[3]=$useropt{$courselevel};
	    $result=3;
	}

	if (defined($useropt{$courselevelm})) {
	    $outpar[2]=$useropt{$courselevelm};
	    $result=2;
	}

	if (defined($useropt{$courselevelr})) {
	    $outpar[1]=$useropt{$courselevelr};
	    $result=1;
	}
    }
    return ($result,@outpar);
}


##################################################
##################################################
#
# Store a parameter
#
# Takes
# - resource id
# - name of parameter
# - level
# - new value
# - new type
# - username
# - userdomain

sub storeparm {
    my ($sresid,$spnam,$snum,$nval,$ntype,$uname,$udom,$csec)=@_;
    $spnam=~s/\_([^\_]+)$/\.$1/;
# ---------------------------------------------------------- Construct prefixes
    
    my $symbparm=$symbp{$sresid}.'.'.$spnam;
    my $mapparm=$mapp{$sresid}.'___(all).'.$spnam;
    
    my $seclevel=$ENV{'request.course.id'}.'.['.$csec.'].'.$spnam;
    my $seclevelr=$ENV{'request.course.id'}.'.['.$csec.'].'.$symbparm;
    my $seclevelm=$ENV{'request.course.id'}.'.['.$csec.'].'.$mapparm;
    
    my $courselevel=$ENV{'request.course.id'}.'.'.$spnam;
    my $courselevelr=$ENV{'request.course.id'}.'.'.$symbparm;
    my $courselevelm=$ENV{'request.course.id'}.'.'.$mapparm;
    
    my $storeunder='';
    if (($snum==11) || ($snum==3)) { $storeunder=$courselevel; }
    if (($snum==10) || ($snum==2)) { $storeunder=$courselevelm; }
    if (($snum==7) || ($snum==1)) { $storeunder=$courselevelr; }
    if ($snum==6) { $storeunder=$seclevel; }
    if ($snum==5) { $storeunder=$seclevelm; }
    if ($snum==4) { $storeunder=$seclevelr; }
    
    my $delete;
    if ($nval eq '') { $delete=1;}
    my %storecontent = ($storeunder         => $nval,
			$storeunder.'.type' => $ntype);
    my $reply='';
    if ($snum>3) {
# ---------------------------------------------------------------- Store Course
#
# Expire sheets
	&Apache::lonnet::expirespread('','','studentcalc');
	if (($snum==7) || ($snum==4)) {
	    &Apache::lonnet::expirespread('','','assesscalc',$symbp{$sresid});
	} elsif (($snum==8) || ($snum==5)) {
	    &Apache::lonnet::expirespread('','','assesscalc',$mapp{$sresid});
	} else {
	    &Apache::lonnet::expirespread('','','assesscalc');
	}
# Store parameter
	if ($delete) {
	    $reply=&Apache::lonnet::del
		('resourcedata',[keys(%storecontent)],
		 $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
		 $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
	} else {
	    $reply=&Apache::lonnet::cput
		('resourcedata',\%storecontent,
		 $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
		 $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
	}
    } else {
# ------------------------------------------------------------------ Store User
#
# Expire sheets
	&Apache::lonnet::expirespread($uname,$udom,'studentcalc');
	if ($snum==1) {
	    &Apache::lonnet::expirespread
		($uname,$udom,'assesscalc',$symbp{$sresid});
	} elsif ($snum==2) {
	    &Apache::lonnet::expirespread
		($uname,$udom,'assesscalc',$mapp{$sresid});
	} else {
	    &Apache::lonnet::expirespread($uname,$udom,'assesscalc');
	}
# Store parameter
	if ($delete) {
	    $reply=&Apache::lonnet::del
		('resourcedata',[keys(%storecontent)],$udom,$uname);
	} else {
	    $reply=&Apache::lonnet::cput
		('resourcedata',\%storecontent,$udom,$uname);
	}
    }
    
    if ($reply=~/^error\:(.*)/) {
	return "<font color=red>Write Error: $1</font>";
    }
    return '';
}

##################################################
##################################################

=pod

=item valout

Format a value for output.

Inputs:  $value, $type

Returns: $value, formatted for output.  If $type indicates it is a date,
localtime($value) is returned.

=cut

##################################################
##################################################
sub valout {
    my ($value,$type)=@_;
    my $result = '';
    # Values of zero are valid.
    if (! $value && $value ne '0') {
	$result = '&nbsp;&nbsp;';
    } else {
        if ($type eq 'date_interval') {
            my ($sec,$min,$hour,$mday,$mon,$year)=gmtime($value);
            $year=$year-70;
            $mday--;
            if ($year) {
		$result.=$year.' yrs ';
            }
            if ($mon) {
		$result.=$mon.' mths ';
            }
            if ($mday) {
		$result.=$mday.' days ';
            }
            if ($hour) {
		$result.=$hour.' hrs ';
            }
            if ($min) {
		$result.=$min.' mins ';
            }
            if ($sec) {
		$result.=$sec.' secs ';
            }
            $result=~s/\s+$//;
        } elsif ($type=~/^date/) {
            $result = localtime($value);
        } else {
            $result = $value;
        }
    }
    return $result;
}

##################################################
##################################################

=pod

=item plink

Produces a link anchor.

Inputs: $type,$dis,$value,$marker,$return,$call

Returns: scalar with html code for a link which will envoke the 
javascript function 'pjump'.

=cut

##################################################
##################################################
sub plink {
    my ($type,$dis,$value,$marker,$return,$call)=@_;
    my $winvalue=$value;
    unless ($winvalue) {
	if ($type=~/^date/) {
            $winvalue=$ENV{'form.recent_'.$type};
        } else {
            $winvalue=$ENV{'form.recent_'.(split(/\_/,$type))[0]};
        }
    }
    return 
	'<a href="javascript:pjump('."'".$type."','".$dis."','".$winvalue."','"
	    .$marker."','".$return."','".$call."'".');">'.
		&valout($value,$type).'</a><a name="'.$marker.'"></a>';
}


sub startpage {
    my ($r,$id,$udom,$csec,$uname,$have_assesments,$trimheader)=@_;

    my $bodytag=&Apache::loncommon::bodytag('Set/Modify Course Parameters','',
                                            'onUnload="pclose()"');
    my $chooseopt=&Apache::loncommon::select_dom_form($udom,'udom').' '.
        &Apache::loncommon::selectstudent_link('parmform','uname','udom');
    my $selscript=&Apache::loncommon::studentbrowser_javascript();
    my $pjump_def = &Apache::lonhtmlcommon::pjump_javascript_definition();
    my %lt=&Apache::lonlocal::texthash(
		    'cep'   => "Course Environment Parameters",
		    'scep'  => "Set Course Environment Parameters",
		    'smcap' => "Set/Modify Course Assessment Parameter",
		    'mcap'  => "Modify Course Assessment Parameters",
		    'caphm' => "Course Assessment Parameter - Helper Mode",
		    'capom' => "Course Assessment Parameters - Overview Mode",
                    'captm' => "Course Assessments Parameters - Table Mode",
		    'sg'    => "Section/Group",
		    'fu'    => "For User",
		    'oi'    => "or ID",
		    'ad'    => "at Domain"
				       );
    my $overallhelp=
	&Apache::loncommon::help_open_menu('','Setting Parameters','Course_Setting_Parameters','',10,'Instructor Interface');
    my $assessparmhelp=&Apache::loncommon::help_open_topic("Cascading_Parameters","Assessment Parameters");
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDHEAD);
$html
<head>
<title>LON-CAPA Course Parameters</title>
<script>

    function pclose() {
        parmwin=window.open("/adm/rat/empty.html","LONCAPAparms",
                 "height=350,width=350,scrollbars=no,menubar=no");
        parmwin.close();
    }

    $pjump_def

    function psub() {
        pclose();
        if (document.parmform.pres_marker.value!='') {
            document.parmform.action+='#'+document.parmform.pres_marker.value;
            var typedef=new Array();
            typedef=document.parmform.pres_type.value.split('_');
           if (document.parmform.pres_type.value!='') {
            if (typedef[0]=='date') {
                eval('document.parmform.recent_'+
                     document.parmform.pres_type.value+
		     '.value=document.parmform.pres_value.value;');
            } else {
                eval('document.parmform.recent_'+typedef[0]+
		     '.value=document.parmform.pres_value.value;');
            }
	   }
            document.parmform.submit();
        } else {
            document.parmform.pres_value.value='';
            document.parmform.pres_marker.value='';
        }
    }

    function openWindow(url, wdwName, w, h, toolbar,scrollbar) {
        var options = "width=" + w + ",height=" + h + ",";
        options += "resizable=yes,scrollbars="+scrollbar+",status=no,";
        options += "menubar=no,toolbar="+toolbar+",location=no,directories=no";
        var newWin = window.open(url, wdwName, options);
        newWin.focus();
    }
</script>
$selscript
</head>
$bodytag
$overallhelp
ENDHEAD

    unless ($trimheader) {$r->print(<<ENDHEAD2);
<form method="post" action="/adm/parmset" name="envform">
<h4>$lt{'cep'}</h4>
<input type="submit" name="crsenv" value="$lt{'scep'}" />
</form>
<hr />
$assessparmhelp
<form method="post" action="/adm/helper/parameter.helper" name="helpform">
<h4>$lt{'caphm'}</h4>
<input type="submit" value="$lt{'smcap'}" />
</form>
<hr />
<form method="post" action="/adm/parmset" name="overview">
<h4>$lt{'capom'}</h4>
<input type="submit" name="overview" value="$lt{'mcap'}" />
</form>
<hr />
ENDHEAD2
    }
    my %sectionhash=();
    my $sections='';
    if (&Apache::loncommon::get_sections(
                 $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                 $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
					 \%sectionhash)) {
        $sections=$lt{'sg'}.': <select name="csec">';
	foreach ('',sort keys %sectionhash) {
	    $sections.='<option value="'.$_.'"'.
		($_ eq $csec?'selected="selected"':'').'>'.$_.'</option>';
        }
        $sections.='</select>';
     }
     $r->print(<<ENDHEAD3);
<form method="post" action="/adm/parmset" name="parmform">
<h4>$lt{'captm'}</h4>
ENDHEAD3

    if (!$have_assesments) {
	$r->print('<font color="red">'.&mt('There are no assesment parameters in this course to set.').'</font><br />');	
    } else {
	$r->print(<<ENDHEAD);
<b>
$sections
<br />
$lt{'fu'} 
<input type="text" value="$uname" size="12" name="uname" />
$lt{'oi'}
<input type="text" value="$id" size="12" name="id" /> 
$lt{'ad'}
$chooseopt
</b>
<input type="hidden" value='' name="pres_value">
<input type="hidden" value='' name="pres_type">
<input type="hidden" value='' name="pres_marker">
ENDHEAD
    }
}

sub print_row {
    my ($r,$which,$part,$name,$rid,$default,$defaulttype,$display,$defbgone,
	$defbgtwo,$parmlev,$uname,$udom,$csec)=@_;
# get the values for the parameter in cascading order
# empty levels will remain empty
    my ($result,@outpar)=&parmval($$part{$which}.'.'.$$name{$which},
				  $rid,$$default{$which},$uname,$udom,$csec);
# get the type for the parameters
# problem: these may not be set for all levels
    my ($typeresult,@typeoutpar)=&parmval($$part{$which}.'.'.
                                          $$name{$which}.'.type',
				  $rid,$$defaulttype{$which},$uname,$udom,$csec);
# cascade down manually
    my $cascadetype=$$defaulttype{$which};
    for (my $i=11;$i>0;$i--) {
	 if ($typeoutpar[$i]) { 
            $cascadetype=$typeoutpar[$i];
	} else {
            $typeoutpar[$i]=$cascadetype;
        }
    }
    my $parm=$$display{$which};

    if ($parmlev eq 'full' || $parmlev eq 'brief') {
        $r->print('<td bgcolor='.$defbgtwo.' align="center">'
                  .$$part{$which}.'</td>');
    } else {    
        $parm=~s|\[.*\]\s||g;
    }

    $r->print('<td bgcolor='.$defbgone.'>'.$parm.'</td>');
   
    my $thismarker=$which;
    $thismarker=~s/^parameter\_//;
    my $mprefix=$rid.'&'.$thismarker.'&';

    if ($parmlev eq 'general') {

        if ($uname) {
            &print_td($r,3,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        } elsif ($csec) {
            &print_td($r,6,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display); 
        } else {
            &print_td($r,11,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display); 
        }
    } elsif ($parmlev eq 'map') {

        if ($uname) {
            &print_td($r,2,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        } elsif ($csec) {
            &print_td($r,5,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        } else {
            &print_td($r,10,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
        }
    } else {

        &print_td($r,11,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);

        if ($parmlev eq 'brief') {

           &print_td($r,7,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);

           if ($csec) {
               &print_td($r,4,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
           }
           if ($uname) {
               &print_td($r,1,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
           }
        } else {

           &print_td($r,10,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
           &print_td($r,9,'#FFDDDD',$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
           &print_td($r,8,'#FFDDDD',$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
           &print_td($r,7,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);

           if ($csec) {
               &print_td($r,6,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
               &print_td($r,5,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
               &print_td($r,4,$defbgtwo,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
           }
           if ($uname) {
               &print_td($r,3,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
               &print_td($r,2,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
               &print_td($r,1,$defbgone,$result,\@outpar,$mprefix,$_,\@typeoutpar,$display);
           }
        } # end of $brief if/else
    } # end of $parmlev if/else

    $r->print('<td bgcolor=#CCCCFF align="center">'.
                  &valout($outpar[$result],$typeoutpar[$result]).'</td>');

    if ($parmlev eq 'full' || $parmlev eq 'brief') {
        my $sessionval=&Apache::lonnet::EXT('resource.'.$$part{$which}.
                                        '.'.$$name{$which},$symbp{$rid});

# this doesn't seem to work, and I don't think is correct
#    my $sessionvaltype=&Apache::lonnet::EXT('resource.'.$$part{$which}.
#                                      '.'.$$name{$which}.'.type',$symbp{$rid});
# this seems to work
        my $sessionvaltype=$typeoutpar[$result];
        if (!defined($sessionvaltype)) { $sessionvaltype=$$defaulttype{$which}; }
        $r->print('<td bgcolor=#999999 align="center"><font color=#FFFFFF>'.
                  &valout($sessionval,$sessionvaltype).'&nbsp;'.
                  '</font></td>');
    }
    $r->print('</tr>');
    $r->print("\n");
}

sub print_td {
    my ($r,$which,$defbg,$result,$outpar,$mprefix,$value,$typeoutpar,$display)=@_;
    $r->print('<td bgcolor='.(($result==$which)?'"#AAFFAA"':$defbg).
              ' align="center">');
    if ($which<8 || $which > 9) {
	$r->print(&plink($$typeoutpar[$which],
			 $$display{$value},$$outpar[$which],
			 $mprefix."$which",'parmform.pres','psub'));
    } else {
	$r->print(&valout($$outpar[$which],$$typeoutpar[$which]));
    }
    $r->print('</td>'."\n");
}

=pod

=item B<extractResourceInformation>: Given the course data hash, extractResourceInformation extracts lots of information about the course's resources into a variety of hashes.

Input: See list below:

=over 4

=item B<ids>: An array that will contain all of the ids in the course.

=item B<typep>: hash, id->type, where "type" contains the extension of the file, thus, I<problem exam quiz assess survey form>.

=item B<keyp>: hash, id->key list, will contain a comma separated list of the meta-data keys available for the given id

=item B<allparms>: hash, name of parameter->display value (what is the display value?)

=item B<allparts>: hash, part identification->text representation of part, where the text representation is "[Part $part]"

=item B<allkeys>: hash, full key to part->display value (what's display value?)

=item B<allmaps>: hash, ???

=item B<fcat>: ???

=item B<defp>: hash, ???

=item B<mapp>: ??

=item B<symbp>: hash, id->full sym?

=back

=cut

sub extractResourceInformation {
    my $bighash = shift;
    my $ids = shift;
    my $typep = shift;
    my $keyp = shift;
    my $allparms = shift;
    my $allparts = shift;
    my $allkeys = shift;
    my $allmaps = shift;
    my $fcat = shift;
    my $defp = shift;
    my $mapp = shift;
    my $symbp = shift;
    my $maptitles=shift;

    foreach (keys %$bighash) {
	if ($_=~/^src\_(\d+)\.(\d+)$/) {
	    # there are no resources in the 0 level
	    if ($1 eq '0') { next; }
	    my $mapid=$1;
	    my $resid=$2;
	    my $id=$mapid.'.'.$resid;
	    my $srcf=$$bighash{$_};
	    if (1) {
		$srcf=~/\.(\w+)$/;
		$$ids[$#$ids+1]=$id;
		$$typep{$id}=$1;
		$$keyp{$id}='';
		foreach (split(/\,/,&Apache::lonnet::metadata($srcf,'allpossiblekeys'))) {
		  if ($_=~/^parameter\_(.*)/) {
                    my $key=$_;
                    my $allkey=$1;
                    $allkey=~s/\_/\./g;
		    if (&Apache::lonnet::metadata($srcf,$key.'.hidden') eq 
			'parm') {
			next; #hide hidden things
		    }
                    my $display= &Apache::lonnet::metadata($srcf,$key.'.display');
                    my $name=&Apache::lonnet::metadata($srcf,$key.'.name');
                    my $part= &Apache::lonnet::metadata($srcf,$key.'.part');
                    my $parmdis = $display;
                    $parmdis =~ s|(\[Part.*$)||g;
                    my $partkey = $part;
                    $partkey =~ tr|_|.|;
                    $$allparms{$name} = $parmdis;
                    $$allparts{$part} = "[Part $part]";
                    $$allkeys{$allkey}=$display;
                    if ($allkey eq $fcat) {
		        $$defp{$id}= &Apache::lonnet::metadata($srcf,$key);
		    }
		    if ($$keyp{$id}) {
		        $$keyp{$id}.=','.$key;
		    } else {
		        $$keyp{$id}=$key;
		    }
		  }
		}
		$$mapp{$id}=
		    &Apache::lonnet::declutter($$bighash{'map_id_'.$mapid});
                $$mapp{$mapid}=$$mapp{$id};
		$$allmaps{$mapid}=$$mapp{$id};
		if ($mapid eq '1') {
		    $$maptitles{$mapid}='Main Course Documents';
		} else {
		    $$maptitles{$mapid}=&Apache::lonnet::gettitle(&Apache::lonnet::clutter($$mapp{$id}));
		}
		$$maptitles{$$mapp{$id}}=$$maptitles{$mapid};
		$$symbp{$id}=&Apache::lonnet::encode_symb($$mapp{$id},$resid,$srcf);
                $$symbp{$mapid}=$$mapp{$id}.'___(all)';
	    }
	}
    }
}

##################################################
##################################################

=pod

=item assessparms

Show assessment data and parameters.  This is a large routine that should
be simplified and shortened... someday.

Inputs: $r

Returns: nothing

Variables used (guessed by Jeremy):

=over 4

=item B<pscat>: ParameterS CATegories? ends up a list of the types of parameters that exist, e.g., tol, weight, acc, opendate, duedate, answerdate, sig, maxtries, type.

=item B<psprt>: ParameterS PaRTs? a list of the parts of a problem that we are displaying? Used to display only selected parts?

=item B<allmaps>:

=back

=cut

##################################################
##################################################
sub assessparms {

    my $r=shift;
# -------------------------------------------------------- Variable declaration
    my %allkeys=();
    my %allmaps=();
    my %alllevs=();

    my $uname;
    my $udom;
    my $uhome;
    my $csec;
 
    my $coursename=$ENV{'course.'.$ENV{'request.course.id'}.'.description'};

    $alllevs{'Resource Level'}='full';
    $alllevs{'Map Level'}='map';
    $alllevs{'Course Level'}='general';

    my %allparms;
    my %allparts;

    my %defp;
    %courseopt=();
    %useropt=();
    my %bighash=();

    @ids=();
    %symbp=();
    %typep=();

    my $message='';

    $csec=$ENV{'form.csec'};

    if      ($udom=$ENV{'form.udom'}) {
    } elsif ($udom=$ENV{'request.role.domain'}) {
    } elsif ($udom=$ENV{'user.domain'}) {
    } else {
	$udom=$r->dir_config('lonDefDomain');
    }

    my @pscat=&Apache::loncommon::get_env_multiple('form.pscat');
    my $pschp=$ENV{'form.pschp'};
    my @psprt=&Apache::loncommon::get_env_multiple('form.psprt');
    if (!@psprt) { $psprt[0]='0'; }
    my $showoptions=$ENV{'form.showoptions'};

    my $pssymb='';
    my $parmlev='';
    my $trimheader='';
    my $prevvisit=$ENV{'form.prevvisit'};
 
    unless ($ENV{'form.parmlev'}) {
        $parmlev = 'map';
    } else {
        $parmlev = $ENV{'form.parmlev'};
    }

# ----------------------------------------------- Was this started from grades?

    if (($ENV{'form.command'} eq 'set') && ($ENV{'form.url'})
	&& (!$ENV{'form.dis'})) {
	my $url=$ENV{'form.url'};
	$url=~s-^http://($ENV{'SERVER_NAME'}|$ENV{'HTTP_HOST'})--;
	$pssymb=&Apache::lonnet::symbread($url);
	if (!@pscat) { @pscat=('all'); }
	$pschp='';
        $parmlev = 'full';
        $trimheader='yes';
    } elsif ($ENV{'form.symb'}) {
	$pssymb=$ENV{'form.symb'};
	if (!@pscat) { @pscat=('all'); }
	$pschp='';
        $parmlev = 'full';
        $trimheader='yes';
    } else {
	$ENV{'form.url'}='';
    }

    my $id=$ENV{'form.id'};
    if (($id) && ($udom)) {
	$uname=(&Apache::lonnet::idget($udom,$id))[1];
	if ($uname) {
	    $id='';
	} else {
	    $message=
		"<font color=red>".&mt("Unknown ID")." '$id' ".
		&mt('at domain')." '$udom'</font>";
	}
    } else {
	$uname=$ENV{'form.uname'};
    }
    unless ($udom) { $uname=''; }
    $uhome='';
    if ($uname) {
	$uhome=&Apache::lonnet::homeserver($uname,$udom);
        if ($uhome eq 'no_host') {
	    $message=
		"<font color=red>".&mt("Unknown user")." '$uname' ".
		&mt("at domain")." '$udom'</font>";
	    $uname='';
        } else {
	    $csec=&Apache::lonnet::getsection($udom,$uname,
					      $ENV{'request.course.id'});
	    if ($csec eq '-1') {
		$message="<font color=red>".
		    &mt("User")." '$uname' ".&mt("at domain")." '$udom' ".
		    &mt("not in this course")."</font>";
		$uname='';
		$csec=$ENV{'form.csec'};
	    } else {
		my %name=&Apache::lonnet::userenvironment($udom,$uname,
		      ('firstname','middlename','lastname','generation','id'));
		$message="\n<p>\n".&mt("Full Name").": ".
		    $name{'firstname'}.' '.$name{'middlename'}.' '
			.$name{'lastname'}.' '.$name{'generation'}.
			    "<br>\n".&mt('ID').": ".$name{'id'}.'<p>';
	    }
        }
    }

    unless ($csec) { $csec=''; }

    my $fcat=$ENV{'form.fcat'};
    unless ($fcat) { $fcat=''; }

# ------------------------------------------------------------------- Tie hashs
    if (!(tie(%bighash,'GDBM_File',$ENV{'request.course.fn'}.'.db',
	      &GDBM_READER(),0640))) {
	$r->print("Unable to access course data. (File $ENV{'request.course.fn'}.db not tieable)");
	return ;
    }
    if (!(tie(%parmhash,'GDBM_File',
	      $ENV{'request.course.fn'}.'_parms.db',&GDBM_READER(),0640))) {
	$r->print("Unable to access parameter data. (File $ENV{'request.course.fn'}_parms.db not tieable)");
	return ;
    }

# --------------------------------------------------------- Get all assessments
    &extractResourceInformation(\%bighash, \@ids, \%typep,\%keyp, \%allparms, \%allparts, \%allkeys, \%allmaps, $fcat, \%defp, \%mapp, \%symbp,\%maptitles);

    $mapp{'0.0'} = '';
    $symbp{'0.0'} = '';

# ---------------------------------------------------------- Anything to store?
    if ($ENV{'form.pres_marker'}) {
	$message.=&storeparm(split(/\&/,$ENV{'form.pres_marker'}),
			     $ENV{'form.pres_value'},
			     $ENV{'form.pres_type'},
                             $uname,$udom,$csec);
# ---------------------------------------------------------------- Done storing
	$message.='<h3>'.&mt('Changes can take up to 10 minutes before being active for all students.').&Apache::loncommon::help_open_topic('Caching').'</h3>';
    }
# --------------------------------------------- Devalidate cache for this child
    &Apache::lonnet::devalidatecourseresdata(
                 $ENV{'course.'.$ENV{'request.course.id'}.'.num'},
                 $ENV{'course.'.$ENV{'request.course.id'}.'.domain'});
    &Apache::lonnet::clear_EXT_cache_status();
# -------------------------------------------------------------- Get coursedata
    %courseopt = &Apache::lonnet::dump
        ('resourcedata',
         $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
         $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
# --------------------------------------------------- Get userdata (if present)
    if ($uname) {
        %useropt=&Apache::lonnet::dump('resourcedata',$udom,$uname);
    }

# ------------------------------------------------------------------- Sort this

    @ids=sort  {
	if ($fcat eq '') {
	    $a<=>$b;
	} else {
	    my ($result,@outpar)=&parmval($fcat,$a,$defp{$a},$uname,$udom,$csec);
	    my $aparm=$outpar[$result];
	    ($result,@outpar)=&parmval($fcat,$b,$defp{$b},$uname,$udom,$csec);
	    my $bparm=$outpar[$result];
	    1*$aparm<=>1*$bparm;
	}
    } @ids;
#----------------------------------------------- if all selected, fill in array
    if ($pscat[0] eq "all" || !@pscat) {@pscat = (keys %allparms);}
    if ($psprt[0] eq "all" || !@psprt) {@psprt = (keys %allparts);}
# ------------------------------------------------------------------ Start page

    my $have_assesments=1;
    if (scalar(keys(%allkeys)) eq 0) { $have_assesments=0; }

    &startpage($r,$id,$udom,$csec,$uname,$have_assesments,$trimheader);

    if (!$have_assesments) {
	untie(%bighash);
	untie(%parmhash);
	return '';
    }
#    if ($ENV{'form.url'}) {
#	$r->print('<input type="hidden" value="'.$ENV{'form.url'}.
#		  '" name="url"><input type="hidden" name="command" value="set">');
#    }
    $r->print('<input type="hidden" value="true" name="prevvisit">');

    foreach ('tolerance','date_default','date_start','date_end',
	     'date_interval','int','float','string') {
	$r->print('<input type="hidden" value="'.
		  $ENV{'form.recent_'.$_}.'" name="recent_'.$_.'">');
    }

    $r->print('<h2>'.$message.'</h2><table>');
                        
    my $submitmessage = &mt('Update Section or Specific User');
    if (!$pssymb) {
        $r->print('<tr><td>'.&mt('Select Parameter Level').
       &Apache::loncommon::help_open_topic('Course_Parameter_Levels').
		  '</td><td colspan="2">');
        $r->print('<select name="parmlev">');
        foreach (reverse sort keys %alllevs) {
            $r->print('<option value="'.$alllevs{$_}.'"');
            if ($parmlev eq $alllevs{$_}) {
               $r->print(' selected'); 
            }
            $r->print('>'.$_.'</option>');
        }
        $r->print("</select></td>\n");

        $r->print('</tr>');
	if ($parmlev ne 'general') {
	    $r->print('<tr><td>'.&mt('Select Enclosing Map or Folder').'</td>');
	    $r->print('<td colspan="2"><select name="pschp">');
	    $r->print('<option value="all">'.&mt('All Maps or Folders').'</option>');
	    foreach (sort {$allmaps{$a} cmp $allmaps{$b}} keys %allmaps) {
		$r->print('<option value="'.$_.'"');
		if (($pschp eq $_)) { $r->print(' selected'); }
		$r->print('>'.$maptitles{$_}.($allmaps{$_}!~/^uploaded/?'  ['.$allmaps{$_}.']':'').'</option>');
	    }
	    $r->print("</select></td></tr>\n");
	}
    } else {
        my ($map,$id,$resource)=&Apache::lonnet::decode_symb($pssymb);
        $r->print("<tr><td>".&mt('Specific Resource')."</td><td>$resource</td>");
        $r->print('<td><input type="submit" name="dis" value="'.$submitmessage.'"></td>');
        $r->print('</tr>');
        $r->print('<input type="hidden" value="'.$pssymb.'" name="symb">');
    }

    $r->print('<tr><td colspan="3"><hr /><label><input type="checkbox"');
    if ($showoptions eq 'show') {$r->print(" checked ");}
    $r->print(' name="showoptions" value="show" />'.&mt('Show More Options').'</label><hr /></td></tr>');
#    $r->print("<tr><td>Show: $showoptions</td></tr>");
#    $r->print("<tr><td>pscat: @pscat</td></tr>");
#    $r->print("<tr><td>psprt: @psprt</td></tr>");
#    $r->print("<tr><td>fcat:  $fcat</td></tr>");

    if ($showoptions eq 'show') {
        my $tempkey;

        $r->print('<tr><td colspan="3" align="center">'.&mt('Select Parameters to View').'</td></tr>');

        $r->print('<tr><td colspan="2"><table><tr>');
        my $cnt=0;
        foreach $tempkey (sort { $allparms{$a} cmp $allparms{$b} }
                      keys %allparms ) {
            ++$cnt;
            $r->print('</tr><tr>') if ($cnt%2);
            $r->print('<td><input type="checkbox" name="pscat" ');
            $r->print('value="'.$tempkey.'"');
            if ($pscat[0] eq "all" || grep $_ eq $tempkey, @pscat) {
                $r->print(' checked');
            }
	    $r->print('>'.$allparms{$tempkey}.'</td>');
	}
	$r->print('
</tr><tr><td>
<script type="text/javascript">
    function checkall(value, checkName) {
	for (i=0; i<document.forms.parmform.elements.length; i++) {
            ele = document.forms.parmform.elements[i];
            if (ele.name == checkName) {
                document.forms.parmform.elements[i].checked=value;
            }
        }
    }
</script>
<input type="button" onclick="checkall(true, \'pscat\')" value="Select All" />
</td><td>
<input type="button" onclick="checkall(false, \'pscat\')" value="Unselect All" />
</td>
');
        $r->print('</tr></table>');

#        $r->print('<tr><td>Select Parts</td><td>');
        $r->print('<td><select multiple name="psprt" size="5">');
        $r->print('<option value="all"');
        $r->print(' selected') unless (@psprt);
        $r->print('>'.&mt('All Parts').'</option>');
        my %temphash=();
        foreach (@psprt) { $temphash{$_}=1; }
        foreach $tempkey (sort keys %allparts) {
            unless ($tempkey =~ /\./) {
                $r->print('<option value="'.$tempkey.'"');
                if ($psprt[0] eq "all" ||  $temphash{$tempkey}) {
                    $r->print(' selected');
                }
                $r->print('>'.$allparts{$tempkey}.'</option>');
            }
        }
        $r->print('</select></td></tr><tr><td colspan="3"><hr /></td></tr>');

        $r->print('<tr><td>'.&mt('Sort list by').'</td><td>');
        $r->print('<select name="fcat">');
        $r->print('<option value="">'.&mt('Enclosing Map or Folder').'</option>');
        foreach (sort keys %allkeys) {
            $r->print('<option value="'.$_.'"');
            if ($fcat eq $_) { $r->print(' selected'); }
            $r->print('>'.$allkeys{$_}.'</option>');
        }
        $r->print('</select></td>');

        $r->print('</tr><tr><td colspan="3"><hr /></td></tr>');

    } else { # hide options - include any necessary extras here

        $r->print('<input type="hidden" name="fcat" value="'.$fcat.'">'."\n");

        unless (@pscat) {
          foreach (keys %allparms ) {
            $r->print('<input type="hidden" name="pscat" value="'.$_.'">'."\n");
          }
        } else {
          foreach (@pscat) {
            $r->print('<input type="hidden" name="pscat" value="'.$_.'">'."\n");
          }
        }

        unless (@psprt) {
          foreach (keys %allparts ) {
            $r->print('<input type="hidden" name="psprt" value="'.$_.'">'."\n");
          }
        } else {
          foreach (@psprt) {
            $r->print('<input type="hidden" name="psprt" value="'.$_.'">'."\n");
          }
        }

    }
    $r->print('</table><br />');
    if (($prevvisit) || ($pschp) || ($pssymb)) {
        $submitmessage = &mt("Update Course Assessment Parameter Display");
    } else {
        $submitmessage = &mt("Set/Modify Course Assessment Parameters");
    }
    $r->print('<input type="submit" name="dis" value="'.$submitmessage.'">');

#    my @temp_psprt;
#    foreach my $t (@psprt) {
#	push(@temp_psprt, grep {eval (/^$t\./ || ($_ == $t))} (keys %allparts));
#    }

#    @psprt = @temp_psprt;

    my @temp_pscat;
    map {
        my $cat = $_;
        push(@temp_pscat, map { $_.'.'.$cat } @psprt);
    } @pscat;

    @pscat = @temp_pscat;

    if (($prevvisit) || ($pschp) || ($pssymb)) {
# ----------------------------------------------------------------- Start Table
        my @catmarker=map { tr|.|_|; 'parameter_'.$_; } @pscat;
        my $csuname=$ENV{'user.name'};
        my $csudom=$ENV{'user.domain'};

        if ($parmlev eq 'full' || $parmlev eq 'brief') {
           my $coursespan=$csec?8:5;
           $r->print('<p><table border=2>');
           $r->print('<tr><td colspan=5></td>');
           $r->print('<th colspan='.($coursespan).'>'.&mt('Any User').'</th>');
           if ($uname) {
               $r->print("<th colspan=3 rowspan=2>");
               $r->print(&mt("User")." $uname ".&mt('at Domain')." $udom</th>");
           }
	   my %lt=&Apache::lonlocal::texthash(
				  'pie'    => "Parameter in Effect",
				  'csv'    => "Current Session Value",
                                  'at'     => 'at',
                                  'rl'     => "Resource Level",
				  'ic'     => 'in Course',
				  'aut'    => "Assessment URL and Title",
				  'type'   => 'Type',
				  'emof'   => "Enclosing Map or Folder",
				  'part'   => 'Part',
                                  'pn'     => 'Parameter Name',
				  'def'    => 'default',
				  'femof'  => 'from Enclosing Map or Folder',
				  'gen'    => 'general',
				  'foremf' => 'for Enclosing Map or Folder',
				  'fr'     => 'for Resource'
					      );
           $r->print(<<ENDTABLETWO);
<th rowspan=3>$lt{'pie'}</th>
<th rowspan=3>$lt{'csv'}<br>($csuname $lt{'at'} $csudom)</th>
</tr><tr><td colspan=5></td><th colspan=2>$lt{'ic'}</th><th colspan=2>$lt{'rl'}</th>
<th colspan=1>$lt{'ic'}</th>

ENDTABLETWO
           if ($csec) {
                $r->print("<th colspan=3>".
			  &mt("in Section/Group")." $csec</th>");
           }
           $r->print(<<ENDTABLEHEADFOUR);
</tr><tr><th>$lt{'aut'}</th><th>$lt{'type'}</th>
<th>$lt{'emof'}</th><th>$lt{'part'}</th><th>$lt{'pn'}</th>
<th>$lt{'gen'}</th><th>$lt{'femof'}</th>
<th>$lt{'def'}</th><th>$lt{'foremf'}</th><th>$lt{'fr'}</th>
ENDTABLEHEADFOUR

           if ($csec) {
               $r->print('<th>'.&mt('general').'</th><th>'.&mt('for Enclosing Map or Folder').'</th><th>'.&mt('for Resource').'</th>');
           }

           if ($uname) {
               $r->print('<th>'.&mt('general').'</th><th>'.&mt('for Enclosing Map or Folder').'</th><th>'.&mt('for Resource').'</th>');
           }

           $r->print('</tr>');

           my $defbgone='';
           my $defbgtwo='';

           foreach (@ids) {

                my $rid=$_;
                my ($inmapid)=($rid=~/\.(\d+)$/);

                if ((!$pssymb && 
		     (($pschp eq 'all') || ($allmaps{$pschp} eq $mapp{$rid})))
		    ||
		    ($pssymb && $pssymb eq $symbp{$rid})) {
# ------------------------------------------------------ Entry for one resource
                    if ($defbgone eq '"#E0E099"') {
                        $defbgone='"#E0E0DD"';
                    } else {
                        $defbgone='"#E0E099"';
                    }
                    if ($defbgtwo eq '"#FFFF99"') {
                        $defbgtwo='"#FFFFDD"';
                    } else {
                        $defbgtwo='"#FFFF99"';
                    }
                    my $thistitle='';
                    my %name=   ();
                    undef %name;
                    my %part=   ();
                    my %display=();
                    my %type=   ();
                    my %default=();
                    my $uri=&Apache::lonnet::declutter($bighash{'src_'.$rid});

                    foreach (split(/\,/,$keyp{$rid})) {
                        my $tempkeyp = $_;
                        if (grep $_ eq $tempkeyp, @catmarker) {
                          $part{$_}=&Apache::lonnet::metadata($uri,$_.'.part');
                          $name{$_}=&Apache::lonnet::metadata($uri,$_.'.name');
                          $display{$_}=&Apache::lonnet::metadata($uri,$_.'.display');
                          unless ($display{$_}) { $display{$_}=''; }
                          $display{$_}.=' ('.$name{$_}.')';
                          $default{$_}=&Apache::lonnet::metadata($uri,$_);
                          $type{$_}=&Apache::lonnet::metadata($uri,$_.'.type');
                          $thistitle=&Apache::lonnet::metadata($uri,$_.'.title');
                        }
                    }
                    my $totalparms=scalar keys %name;
                    if ($totalparms>0) {
                        my $firstrow=1;
			my $title=&Apache::lonnet::gettitle($uri);
                        $r->print('<tr><td bgcolor='.$defbgone.
                             ' rowspan='.$totalparms.
                             '><tt><font size=-1>'.
                             join(' / ',split(/\//,$uri)).
                             '</font></tt><p><b>'.
                             "<a href=\"javascript:openWindow('".
				  &Apache::lonnet::clutter($uri).
                             "', 'metadatafile', '450', '500', 'no', 'yes')\";".
                             " TARGET=_self>$title");

                        if ($thistitle) {
                            $r->print(' ('.$thistitle.')');
                        }
                        $r->print('</a></b></td>');
                        $r->print('<td bgcolor='.$defbgtwo.
                                      ' rowspan='.$totalparms.'>'.$typep{$rid}.
                                      '</td>');

                        $r->print('<td bgcolor='.$defbgone.
                                      ' rowspan='.$totalparms.
                                      '><tt><font size=-1>');

                        $r->print(' / res / ');
                        $r->print(join(' / ', split(/\//,$mapp{$rid})));

                        $r->print('</font></tt></td>');

                        foreach (sort keys %name) {
                            unless ($firstrow) {
                                $r->print('<tr>');
                            } else {
                                undef $firstrow;
                            }

                            &print_row($r,$_,\%part,\%name,$rid,\%default,
                                       \%type,\%display,$defbgone,$defbgtwo,
                                       $parmlev,$uname,$udom,$csec);
                        }
                    }
                }
            } # end foreach ids
# -------------------------------------------------- End entry for one resource
            $r->print('</table>');
        } # end of  brief/full
#--------------------------------------------------- Entry for parm level map
        if ($parmlev eq 'map') {
            my $defbgone = '"E0E099"';
            my $defbgtwo = '"FFFF99"';

            my %maplist;

            if ($pschp eq 'all') {
                %maplist = %allmaps; 
            } else {
                %maplist = ($pschp => $mapp{$pschp});
            }

#-------------------------------------------- for each map, gather information
            my $mapid;
	    foreach $mapid (sort {$maplist{$a} cmp $maplist{$b}} keys %maplist) {
                my $maptitle = $maplist{$mapid};

#-----------------------  loop through ids and get all parameter types for map
#-----------------------------------------          and associated information
                my %name = ();
                my %part = ();
                my %display = ();
                my %type = ();
                my %default = ();
                my $map = 0;

#		$r->print("Catmarker: @catmarker<br />\n");
               
                foreach (@ids) {
                  ($map)=(/([\d]*?)\./);
                  my $rid = $_;
        
#                  $r->print("$mapid:$map:   $rid <br /> \n");

                  if ($map eq $mapid) {
                    my $uri=&Apache::lonnet::declutter($bighash{'src_'.$rid});
#                    $r->print("Keys: $keyp{$rid} <br />\n");

#--------------------------------------------------------------------
# @catmarker contains list of all possible parameters including part #s
# $fullkeyp contains the full part/id # for the extraction of proper parameters
# $tempkeyp contains part 0 only (no ids - ie, subparts)
# When storing information, store as part 0
# When requesting information, request from full part
#-------------------------------------------------------------------
                    foreach (split(/\,/,$keyp{$rid})) {
                      my $tempkeyp = $_;
                      my $fullkeyp = $tempkeyp;
                      $tempkeyp =~ s/_\w+_/_0_/;
                      
                      if ((grep $_ eq $fullkeyp, @catmarker) &&(!$name{$tempkeyp})) {
                        $part{$tempkeyp}="0";
                        $name{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.name');
                        $display{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.display');
                        unless ($display{$tempkeyp}) { $display{$tempkeyp}=''; }
                        $display{$tempkeyp}.=' ('.$name{$tempkeyp}.')';
                        $display{$tempkeyp} =~ s/_\w+_/_0_/;
                        $default{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp);
                        $type{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.type');
                      }
                    } # end loop through keys
                  }
                } # end loop through ids
                                 
#---------------------------------------------------- print header information
                my $foldermap=&mt($maptitle=~/^uploaded/?'Folder':'Map');
                my $showtitle=$maptitles{$maptitle}.($maptitle!~/^uploaded/?' ['.$maptitle.']':'');
                $r->print(<<ENDMAPONE);
<center><h4>
Set Defaults for All Resources in $foldermap<br />
<font color="red"><i>$showtitle</i></font><br />
Specifically for
ENDMAPONE
                if ($uname) {
                    my %name=&Apache::lonnet::userenvironment($udom,$uname,
                      ('firstname','middlename','lastname','generation', 'id'));
                    my $person=$name{'firstname'}.' '.$name{'middlename'}.' '
                           .$name{'lastname'}.' '.$name{'generation'};
                    $r->print(&mt("User")." <font color=\"red\"><i>$uname \($person\) </i></font> ".
                        &mt('in')." \n");
                } else {
                    $r->print("<font color=\"red\"><i>".&mt('all').'</i></font> '.&mt('users in')." \n");
                }
            
                if ($csec) {$r->print(&mt("Section")." <font color=\"red\"><i>$csec</i></font> ".
				      &mt('of')." \n")};

                $r->print("<font color=\"red\"><i>$coursename</i></font><br />");
                $r->print("</h4>\n");
#---------------------------------------------------------------- print table
                $r->print('<p><table border="2">');
                $r->print('<tr><th>'.&mt('Parameter Name').'</th>');
                $r->print('<th>'.&mt('Default Value').'</th>');
                $r->print('<th>'.&mt('Parameter in Effect').'</th></tr>');

	        foreach (sort keys %name) {
                    $r->print('<tr>');
                    &print_row($r,$_,\%part,\%name,$mapid,\%default,
                           \%type,\%display,$defbgone,$defbgtwo,
                           $parmlev,$uname,$udom,$csec);
#                    $r->print("<tr><td>resource.$part{$_}.$name{$_},$symbp{$mapid}</td></tr>\n");
                }
                $r->print("</table></center>");
            } # end each map
        } # end of $parmlev eq map
#--------------------------------- Entry for parm level general (Course level)
        if ($parmlev eq 'general') {
            my $defbgone = '"E0E099"';
            my $defbgtwo = '"FFFF99"';

#-------------------------------------------- for each map, gather information
            my $mapid="0.0";
#-----------------------  loop through ids and get all parameter types for map
#-----------------------------------------          and associated information
            my %name = ();
            my %part = ();
            my %display = ();
            my %type = ();
            my %default = ();
               
            foreach (@ids) {
                my $rid = $_;
        
                my $uri=&Apache::lonnet::declutter($bighash{'src_'.$rid});

#--------------------------------------------------------------------
# @catmarker contains list of all possible parameters including part #s
# $fullkeyp contains the full part/id # for the extraction of proper parameters
# $tempkeyp contains part 0 only (no ids - ie, subparts)
# When storing information, store as part 0
# When requesting information, request from full part
#-------------------------------------------------------------------
                foreach (split(/\,/,$keyp{$rid})) {
                  my $tempkeyp = $_;
                  my $fullkeyp = $tempkeyp;
                  $tempkeyp =~ s/_\w+_/_0_/;
                  if ((grep $_ eq $fullkeyp, @catmarker) &&(!$name{$tempkeyp})) {
                    $part{$tempkeyp}="0";
                    $name{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.name');
                    $display{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.display');
                    unless ($display{$tempkeyp}) { $display{$tempkeyp}=''; }
                    $display{$tempkeyp}.=' ('.$name{$tempkeyp}.')';
                    $display{$tempkeyp} =~ s/_\w+_/_0_/;
                    $default{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp);
                    $type{$tempkeyp}=&Apache::lonnet::metadata($uri,$fullkeyp.'.type');
                  }
                } # end loop through keys
            } # end loop through ids
                                 
#---------------------------------------------------- print header information
	    my $setdef=&mt("Set Defaults for All Resources in Course");
            $r->print(<<ENDMAPONE);
<center><h4>$setdef
<font color="red"><i>$coursename</i></font><br />
ENDMAPONE
            if ($uname) {
                my %name=&Apache::lonnet::userenvironment($udom,$uname,
                  ('firstname','middlename','lastname','generation', 'id'));
                my $person=$name{'firstname'}.' '.$name{'middlename'}.' '
                       .$name{'lastname'}.' '.$name{'generation'};
                $r->print(" ".&mt("User")."<font color=\"red\"> <i>$uname \($person\) </i></font> \n");
            } else {
                $r->print("<i><font color=\"red\"> ".&mt("ALL")."</i> ".&mt("USERS")."</font> \n");
            }
            
            if ($csec) {$r->print(&mt("Section")."<font color=\"red\"> <i>$csec</i></font>\n")};
            $r->print("</h4>\n");
#---------------------------------------------------------------- print table
            $r->print('<p><table border="2">');
            $r->print('<tr><th>'.&mt('Parameter Name').'</th>');
            $r->print('<th>'.&mt('Default Value').'</th>');
            $r->print('<th>'.&mt('Parameter in Effect').'</th></tr>');

	    foreach (sort keys %name) {
                $r->print('<tr>');
                &print_row($r,$_,\%part,\%name,$mapid,\%default,
                       \%type,\%display,$defbgone,$defbgtwo,$parmlev,$uname,$udom,$csec);
#                    $r->print("<tr><td>resource.$part{$_}.$name{$_},$symbp{$mapid}</td></tr>\n");
            }
            $r->print("</table></center>");
        } # end of $parmlev eq general
    }
    $r->print('</form></body></html>');
    untie(%bighash);
    untie(%parmhash);
} # end sub assessparms


##################################################
##################################################

=pod

=item crsenv

Show and set course data and parameters.  This is a large routine that should
be simplified and shortened... someday.

Inputs: $r

Returns: nothing

=cut

##################################################
##################################################
sub crsenv {
    my $r=shift;
    my $setoutput='';
    my $bodytag=&Apache::loncommon::bodytag(
                             'Set Course Environment Parameters');
    my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
    my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};

    #
    # Go through list of changes
    foreach (keys %ENV) {
        next if ($_!~/^form\.(.+)\_setparmval$/);
        my $name  = $1;
        my $value = $ENV{'form.'.$name.'_value'};
        if ($name eq 'newp') {
            $name = $ENV{'form.newp_name'};
        }
        if ($name eq 'url') {
            $value=~s/^\/res\///;
            my $bkuptime=time;
            my @tmp = &Apache::lonnet::get
                ('environment',['url'],$dom,$crs);
            $setoutput.=&mt('Backing up previous URL').': '.
                &Apache::lonnet::put
                ('environment',
                 {'top level map backup '.$bkuptime => $tmp[1] },
                 $dom,$crs).
                     '<br>';
        }
        #
        # Deal with modified default spreadsheets
        if ($name =~ /^spreadsheet_default_(classcalc|
                                            studentcalc|
                                            assesscalc)$/x) {
            my $sheettype = $1; 
            if ($sheettype eq 'classcalc') {
                # no need to do anything since viewing the sheet will
                # cause it to be updated. 
            } elsif ($sheettype eq 'studentcalc') {
                # expire all the student spreadsheets
                &Apache::lonnet::expirespread('','','studentcalc');
            } else {
                # expire all the assessment spreadsheets 
                #    this includes non-default spreadsheets, but better to
                #    be safe than sorry.
                &Apache::lonnet::expirespread('','','assesscalc');
                # expire all the student spreadsheets
                &Apache::lonnet::expirespread('','','studentcalc');
            }
        }
        #
        # Deal with the enrollment dates
        if ($name =~ /^default_enrollment_(start|end)_date$/) {
            $value=&Apache::lonhtmlcommon::get_date_from_form($name.'_value');
        }
        # Get existing cloners
        my @oldcloner = ();
        if ($name eq 'cloners') {
            my %clonenames=&Apache::lonnet::dump('environment',$dom,$crs,'cloners');
            if ($clonenames{'cloners'} =~ /,/) {
                @oldcloner = split/,/,$clonenames{'cloners'};
            } else {
                $oldcloner[0] = $clonenames{'cloners'};
            }
        }
        #
        # Let the user know we made the changes
        if ($name && defined($value)) {
            if ($name eq 'cloners') {
                $value =~ s/^,//;
                $value =~ s/,$//;
            }
            my $put_result = &Apache::lonnet::put('environment',
                                                  {$name=>$value},$dom,$crs);
            if ($put_result eq 'ok') {
                $setoutput.=&mt('Set').' <b>'.$name.'</b> '.&mt('to').' <b>'.$value.'</b>.<br />';
                if ($name eq 'cloners') {
                    &change_clone($value,\@oldcloner);
                }
                # Flush the course logs so course description is immediately updated
                if ($name eq 'description' && defined($value)) {
                    &Apache::lonnet::flushcourselogs();
                }
            } else {
                $setoutput.=&mt('Unable to set').' <b>'.$name.'</b> '.&mt('to').
		    ' <b>'.$value.'</b> '.&mt('due to').' '.$put_result.'.<br />';
            }
        }
    }
# ------------------------- Re-init course environment entries for this session

    &Apache::lonnet::coursedescription($ENV{'request.course.id'});

# -------------------------------------------------------- Get parameters again

    my %values=&Apache::lonnet::dump('environment',$dom,$crs);
    my $SelectStyleFile=&mt('Select Style File');
    my $SelectSpreadsheetFile=&mt('Select Spreadsheet File');
    my $output='';
    if (! exists($values{'con_lost'})) {
        my %descriptions=
	    ('url'            => '<b>'.&mt('Top Level Map').'</b> '.
                                 '<a href="javascript:openbrowser'.
                                 "('envform','url','sequence')\">".
                                 &mt('Select Map').'</a><br /><font color=red> '.
                                 &mt('Modification may make assessment data inaccessible').
                                 '</font>',
             'description'    => '<b>'.&mt('Course Description').'</b>',
             'courseid'       => '<b>'.&mt('Course ID or number').
                                 '</b><br />'.
                                 '('.&mt('internal').', '.&mt('optional').')',
             'cloners'        => '<b>'.&mt('Users allowed to clone course').'</b><br /><tt>(user:domain,user:domain)</tt><br />'.&mt('Users with active Course Coordinator role in the course automatically have the right to clone it, and can be omitted from list.'),
             'grading'        => '<b>'.&mt('Grading').'</b><br />'.
                                 '<tt>"standard", "external", or "spreadsheet"</tt> '.&Apache::loncommon::help_open_topic('GradingOptions'),
             'default_xml_style' => '<b>'.&mt('Default XML Style File').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','default_xml_style'".
                    ",'sty')\">$SelectStyleFile</a><br>",
             'question.email' => '<b>'.&mt('Feedback Addresses for Resource Content Question').
                                 '</b><br />(<tt>user:domain,'.
                                 'user:domain(section;section;...;*;...),...</tt>)',
             'comment.email'  => '<b>'.&mt('Feedback Addresses for Course Content Comments').'</b><br />'.
                                 '(<tt>user:domain,user:domain(section;section;...;*;...),...</tt>)',
             'policy.email'   => '<b>'.&mt('Feedback Addresses for Course Policy').'</b>'.
                                 '<br />(<tt>user:domain,user:domain(section;section;...;*;...),...</tt>)',
             'hideemptyrows'  => '<b>'.&mt('Hide Empty Rows in Spreadsheets').'</b><br />'.
                                 '('.&mt('"[_1]" for default hiding','<tt>yes</tt>').')',
             'pageseparators'  => '<b>'.&mt('Visibly Separate Items on Pages').'</b><br />'.
                                 '('.&mt('"[_1]" for visible separation','<tt>yes</tt>').', '.
                                 &mt('changes will not show until next login').')',
             'student_classlist_view' => '<b>'.&mt('Allow students to view classlist.').'</b>'.&mt('("all":students can view all sections,"section":students can only view their own section.blank or "disabled" prevents student view.'),

             'plc.roles.denied'=> '<b>'.&mt('Disallow live chatroom use for Roles').
                                  '</b><br />"<tt>st</tt>": '.
                                  &mt('student').', "<tt>ta</tt>": '.
                                  'TA, "<tt>in</tt>": '.
                                  &mt('instructor').';<br /><tt>'.&mt('role,role,...').'</tt>) '.
	       Apache::loncommon::help_open_topic("Course_Disable_Discussion"),
             'plc.users.denied' => 
                          '<b>'.&mt('Disallow live chatroom use for Users').'</b><br />'.
                                 '(<tt>user:domain,user:domain,...</tt>)',

             'pch.roles.denied'=> '<b>'.&mt('Disallow Resource Discussion for Roles').
                                  '</b><br />"<tt>st</tt>": '.
                                  'student, "<tt>ta</tt>": '.
                                  'TA, "<tt>in</tt>": '.
                                  'instructor;<br /><tt>role,role,...</tt>) '.
	       Apache::loncommon::help_open_topic("Course_Disable_Discussion"),
             'pch.users.denied' => 
                          '<b>'.&mt('Disallow Resource Discussion for Users').'</b><br />'.
                                 '(<tt>user:domain,user:domain,...</tt>)',
             'spreadsheet_default_classcalc' 
                 => '<b>'.&mt('Default Course Spreadsheet').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','spreadsheet_default_classcalc'".
                    ",'spreadsheet')\">$SelectSpreadsheetFile</a><br />",
             'spreadsheet_default_studentcalc' 
                 => '<b>'.&mt('Default Student Spreadsheet').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','spreadsheet_default_calc'".
                    ",'spreadsheet')\">$SelectSpreadsheetFile</a><br />",
             'spreadsheet_default_assesscalc' 
                 => '<b>'.&mt('Default Assessment Spreadsheet').'</b> '.
                    '<a href="javascript:openbrowser'.
                    "('envform','spreadsheet_default_assesscalc'".
                    ",'spreadsheet')\">$SelectSpreadsheetFile</a><br />",
	     'allow_limited_html_in_feedback'
	         => '<b>'.&mt('Allow limited HTML in discussion posts').'</b><br />'.
	            '('.&mt('Set value to "[_1]" to allow',"<tt>yes</tt>").')',
             'allow_discussion_post_editing'
                 => '<b>'.&mt('Allow users to edit/delete their own discussion posts').'</b><br />'.
                    '('.&mt('Set value to "[_1]" to allow',"<tt>yes</tt>").')',
	     'rndseed'
	         => '<b>'.&mt('Randomization algorithm used').'</b> <br />'.
                    '<font color="red">'.&mt('Modifying this will make problems').' '.
                    &mt('have different numbers and answers').'</font>',
	     'receiptalg'
	         => '<b>'.&mt('Receipt algorithm used').'</b> <br />'.
                    &mt('This controls how receipt numbers are generated.'),
             'suppress_tries'
                 => '<b>'.&mt('Suppress number of tries in printing').'</b>('.
                    &mt('yes if supress').')',
             'problem_stream_switch'
                 => '<b>'.&mt('Allow problems to be split over pages').'</b><br />'.
                    ' ('.&mt('"[_1]" if allowed, anything else if not','<tt>yes</tt>').')',
             'default_paper_size' 
                 => '<b>'.&mt('Default paper type').'</b><br />'.
                    ' ('.&mt('supported types').': Letter [8 1/2x11 in], Legal [8 1/2x14 in],'. 
                    ' Tabloid [11x17 in], Executive [7 1/2x10 in], A2 [420x594 mm],'. 
                    ' A3 [297x420 mm], A4 [210x297 mm], A5 [148x210 mm], A6 [105x148 mm])',
             'anonymous_quiz'
                 => '<b>'.&mt('Anonymous quiz/exam').'</b><br />'.
                    ' (<tt><b>'.&mt('yes').'</b> '.&mt('to avoid print students names').' </tt>)',
             'default_enrollment_start_date' => '<b>'.&mt('Default beginning date when enrolling students').'</b>',
             'default_enrollment_end_date'   => '<b>'.&mt('Default ending date when enrolling students').'</b>',
             'nothideprivileged'   => '<b>'.&mt('Privileged users that should not be hidden on staff listings').'</b>'.
                                 '<br />(<tt>user:domain,user:domain,...</tt>)',
             'languages' => '<b>'.&mt('Languages used').'</b>',
             'disable_receipt_display'
                 => '<b>'.&mt('Disable display of problem receipts').'</b><br />'.
                    ' ('.&mt('"[_1]" to disable, anything else if not','<tt>yes</tt>').')',
	     'disablesigfigs'
	         => '<b>'.&mt('Disable checking of Significant Figures').'</b><br />'.
                    ' ('.&mt('"[_1]" to disable, anything else if not','<tt>yes</tt>').')',
	     'tthoptions'
	         => '<b>'.&mt('Default set of options to pass to tth/m when converting tex').'</b>'
             ); 
        my @Display_Order = ('url','description','courseid','cloners','grading',
                             'default_xml_style','pageseparators',
                             'question.email','comment.email','policy.email',
                             'student_classlist_view',
                             'plc.roles.denied','plc.users.denied',
                             'pch.roles.denied','pch.users.denied',
                             'allow_limited_html_in_feedback',
                             'allow_discussion_post_editing',
                             'languages',
			     'nothideprivileged',
                             'rndseed',
                             'receiptalg',
                             'problem_stream_switch',
			     'suppress_tries',
                             'default_paper_size',
                             'disable_receipt_display',
                             'spreadsheet_default_classcalc',
                             'spreadsheet_default_studentcalc',
                             'spreadsheet_default_assesscalc', 
                             'hideemptyrows',
                             'default_enrollment_start_date',
                             'default_enrollment_end_date',
			     'tthoptions',
			     'disablesigfigs'
                             );
	foreach my $parameter (sort(keys(%values))) {
            unless ($parameter =~ m/^internal\./) {
                if (! $descriptions{$parameter}) {
                    $descriptions{$parameter}=$parameter;
                    push(@Display_Order,$parameter);
                }
            }
	}
        foreach my $parameter (@Display_Order) {
            my $description = $descriptions{$parameter};
            # onchange is javascript to automatically check the 'Set' button.
            my $onchange = 'onFocus="javascript:window.document.forms'.
                "['envform'].elements['".$parameter."_setparmval']".
                '.checked=true;"';
            $output .= '<tr><td>'.$description.'</td>';
            if ($parameter =~ /^default_enrollment_(start|end)_date$/) {
                $output .= '<td>'.
                    &Apache::lonhtmlcommon::date_setter('envform',
                                                        $parameter.'_value',
                                                        $values{$parameter},
                                                        $onchange).
                                                        '</td>';
            } else {
                $output .= '<td>'.
                    &Apache::lonhtmlcommon::textbox($parameter.'_value',
                                                    $values{$parameter},
                                                    40,$onchange).'</td>';
            }
            $output .= '<td>'.
                &Apache::lonhtmlcommon::checkbox($parameter.'_setparmval').
                '</td>';
            $output .= "</tr>\n";
	}
        my $onchange = 'onFocus="javascript:window.document.forms'.
            '[\'envform\'].elements[\'newp_setparmval\']'.
            '.checked=true;"';
	$output.='<tr><td><i>'.&mt('Create New Environment Variable').'</i><br />'.
	    '<input type="text" size=40 name="newp_name" '.
                $onchange.' /></td><td>'.
            '<input type="text" size=40 name="newp_value" '.
                $onchange.' /></td><td>'.
	    '<input type="checkbox" name="newp_setparmval" /></td></tr>';
    }
    my %lt=&Apache::lonlocal::texthash(
		    'par'   => 'Parameter',
		    'val'   => 'Value',
		    'set'   => 'Set',
		    'sce'   => 'Set Course Environment'
				       );

    my $Parameter=&mt('Parameter');
    my $Value=&mt('Value');
    my $Set=&mt('Set');
    my $browse_js=&Apache::loncommon::browser_and_searcher_javascript('parmset');
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDENV);
$html
<head>
<script type="text/javascript" language="Javascript" >
$browse_js
</script>
<title>LON-CAPA Course Environment</title>
</head>
$bodytag
<form method="post" action="/adm/parmset" name="envform">
$setoutput
<p>
<table border=2>
<tr><th>$lt{'par'}</th><th>$lt{'val'}</th><th>$lt{'set'}?</th></tr>
$output
</table>
<input type="submit" name="crsenv" value="$lt{'sce'}">
</form>
</body>
</html>    
ENDENV
}
##################################################

my $tableopen;

sub tablestart {
    if ($tableopen) {
	return '';
    } else {
	$tableopen=1;
	return '<table border="2"><tr><th>'.&mt('Parameter').'</th><th>'.
	    &mt('Delete').'</th><th>'.&mt('Set to ...').'</th></tr>';
    }
}

sub tableend {
    if ($tableopen) {
	$tableopen=0;
	return '</table>';
    } else {
	return'';
    }
}

sub overview {
    my $r=shift;
    my $bodytag=&Apache::loncommon::bodytag(
                             'Set/Modify Course Assessment Parameters');
    my $dom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
    my $crs = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
    my $html=&Apache::lonxml::xmlbegin();
    $r->print(<<ENDOVER);
$html
<head>
<title>LON-CAPA Course Environment</title>
</head>
$bodytag
<form method="post" action="/adm/parmset" name="overviewform">
<input type="hidden" name="overview" value="1" />
ENDOVER
# Setting
    my %olddata=&Apache::lonnet::dump('resourcedata',$dom,$crs);
    my %newdata=();
    undef %newdata;
    my @deldata=();
    undef @deldata;
    foreach (keys %ENV) {
	if ($_=~/^form\.([a-z]+)\_(.+)$/) {
	    my $cmd=$1;
	    my $thiskey=$2;
	    if ($cmd eq 'set') {
		my $data=$ENV{$_};
		if ($olddata{$thiskey} ne $data) { $newdata{$thiskey}=$data; }
	    } elsif ($cmd eq 'del') {
		push (@deldata,$thiskey);
	    } elsif ($cmd eq 'datepointer') {
		my $data=&Apache::lonhtmlcommon::get_date_from_form($ENV{$_});
		if (defined($data) and $olddata{$thiskey} ne $data) { $newdata{$thiskey}=$data; }
	    }
	}
    }
# Store
    my $delentries=$#deldata+1;
    my @newdatakeys=keys %newdata;
    my $putentries=$#newdatakeys+1;
    if ($delentries) {
	if (&Apache::lonnet::del('resourcedata',\@deldata,$dom,$crs) eq 'ok') {
	    $r->print('<h2>'.&mt('Deleted [_1] parameter(s)</h2>',$delentries));
	} else {
	    $r->print('<h2><font color="red">'.
		      &mt('Error deleting parameters').'</font></h2>');
	}
    }
    if ($putentries) {
	if (&Apache::lonnet::put('resourcedata',\%newdata,$dom,$crs) eq 'ok') {
	    $r->print('<h2>'.&mt('Stored [_1] parameter(s)</h2>',$putentries));
	} else {
	    $r->print('<h2><font color="red">'.
		      &mt('Error storing parameters').'</font></h2>');
	}
    }
# Read and display
    my %resourcedata=&Apache::lonnet::dump('resourcedata',$dom,$crs);
    my $oldsection='';
    my $oldrealm='';
    my $oldpart='';
    my $pointer=0;
    $tableopen=0;
    my $foundkeys=0;
    foreach my $thiskey (sort keys %resourcedata) {
	if ($resourcedata{$thiskey.'.type'}) {
	    my ($course,$middle,$part,$name)=
		($thiskey=~/^(\w+)\.(?:(.+)\.)*([\w\s]+)\.(\w+)$/);
	    my $section=&mt('All Students');
	    if ($middle=~/^\[(.*)\]\./) {
		$section=&mt('Group/Section').': '.$1;
		$middle=~s/^\[(.*)\]\.//;
	    }
	    $middle=~s/\.$//;
	    my $realm='<font color="red">'.&mt('All Resources').'</font>';
	    if ($middle=~/^(.+)\_\_\_\(all\)$/) {
		$realm='<font color="green">'.&mt('Folder/Map').': '.&Apache::lonnet::gettitle($1).' <br /><font color="#aaaaaa" size="-2">('.$1.')</font></font>';
	    } elsif ($middle) {
		my ($map,$id,$url)=&Apache::lonnet::decode_symb($middle);
		$realm='<font color="orange">'.&mt('Resource').': '.&Apache::lonnet::gettitle($middle).' <br /><font color="#aaaaaa" size="-2">('.$url.' in '.$map.' id: '.$id.')</font></font>';
	    }
	    if ($section ne $oldsection) {
		$r->print(&tableend()."\n<hr /><h1>$section</h1>");
		$oldsection=$section;
		$oldrealm='';
	    }
	    if ($realm ne $oldrealm) {
		$r->print(&tableend()."\n<h2>$realm</h2>");
		$oldrealm=$realm;
		$oldpart='';
	    }
	    if ($part ne $oldpart) {
		$r->print(&tableend().
			  "\n<h3><font color='blue'>".&mt('Part').": $part</font></h3>");
		$oldpart=$part;
	    }
#
# Ready to print
#
	    $r->print(&tablestart().'<tr><td><b>'.$name.
		      ':</b></td><td><input type="checkbox" name="del_'.
		      $thiskey.'" /></td><td>');
	    $foundkeys++;
	    if ($resourcedata{$thiskey.'.type'}=~/^date/) {
		my $jskey='key_'.$pointer;
		$pointer++;
		$r->print(
			  &Apache::lonhtmlcommon::date_setter('overviewform',
							      $jskey,
						      $resourcedata{$thiskey}).
'<input type="hidden" name="datepointer_'.$thiskey.'" value="'.$jskey.'" />'
			  );
	    } else {
		$r->print(
			  '<input type="text" name="set_'.$thiskey.'" value="'.
			  $resourcedata{$thiskey}.'">');
	    }
	    $r->print('</td></tr>');
	}
    }
    
    $r->print(&tableend().'<p>'.
	($foundkeys?'<input type="submit" value="'.&mt('Modify Parameters').'" />':&mt('There are no course or section parameters.')).'</p></form></body></html>');
}

##################################################
##################################################
                                                                                            
=pod
                                                                                            
=item change clone
                                                                                            
Modifies the list of courses a user can clone (stored
in the user's environemnt.db file), called when a
change is made to the list of users allowed to clone
a course.
                                                                                            
Inputs: $action,$cloner
where $action is add or drop, and $cloner is identity of 
user for whom cloning ability is to be changed in course. 
                                                                                            
Returns: 

=cut
                                                                                            
##################################################
##################################################


sub change_clone {
    my ($clonelist,$oldcloner) = @_;
    my ($uname,$udom);
    my $cnum = $ENV{'course.'.$ENV{'request.course.id'}.'.num'};
    my $cdom = $ENV{'course.'.$ENV{'request.course.id'}.'.domain'};
    my $clone_crs = $cnum.':'.$cdom;
    
    if ($cnum && $cdom) {
        my @allowclone = ();
        if ($clonelist =~ /,/) {
            @allowclone = split/,/,$clonelist;
        } else {
            $allowclone[0] = $clonelist;
        }
        foreach my $currclone (@allowclone) {
            if (!grep/^$currclone$/,@$oldcloner) {
                ($uname,$udom) = split/:/,$currclone;
                if ($uname && $udom) {
                    unless (&Apache::lonnet::homeserver($uname,$udom) eq 'no_host') {
                        my %currclonecrs = &Apache::lonnet::dump('environment',$udom,$uname,'cloneable');
                        if ($currclonecrs{'cloneable'} !~ /\Q$clone_crs\E/) {
                            if ($currclonecrs{'cloneable'} eq '') {
                                $currclonecrs{'cloneable'} = $clone_crs;
                            } else {
                                $currclonecrs{'cloneable'} .= ','.$clone_crs;
                            }
                            &Apache::lonnet::put('environment',\%currclonecrs,$udom,$uname);
                        }
                    }
                }
            }
        }
        foreach my $oldclone (@$oldcloner) {
            if (!grep/^$oldclone$/,@allowclone) {
                ($uname,$udom) = split/:/,$oldclone;
                if ($uname && $udom) {
                    unless (&Apache::lonnet::homeserver($uname,$udom) eq 'no_host') {
                        my %currclonecrs = &Apache::lonnet::dump('environment',$udom,$uname,'cloneable');
                        my %newclonecrs = ();
                        if ($currclonecrs{'cloneable'} =~ /\Q$clone_crs\E/) {
                            if ($currclonecrs{'cloneable'} =~ /,/) {
                                my @currclonecrs = split/,/,$currclonecrs{'cloneable'};
                                foreach (@currclonecrs) {
                                    unless ($_ eq $clone_crs) {
                                        $newclonecrs{'cloneable'} .= $_.',';
                                    }
                                }
                                $newclonecrs{'cloneable'} =~ s/,$//;
                            } else {
                                $newclonecrs{'cloneable'} = '';
                            }
                            &Apache::lonnet::put('environment',\%newclonecrs,$udom,$uname);
                        }
                    }
                }
            }
        }
    }
}

##################################################
##################################################

=pod

=item * handler

Main handler.  Calls &assessparms and &crsenv subroutines.

=cut

##################################################
##################################################
    use Data::Dumper;
sub handler {
    my $r=shift;

    if ($r->header_only) {
	&Apache::loncommon::content_type($r,'text/html');
	$r->send_http_header;
	return OK;
    }
    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'});

# ----------------------------------------------------------- Clear out garbage

    %courseopt=();
    %useropt=();
    %parmhash=();

    @ids=();
    %symbp=();
    %mapp=();
    %typep=();
    %keyp=();

    %maptitles=();

# ----------------------------------------------------- Needs to be in a course

    if (($ENV{'request.course.id'}) && 
	(&Apache::lonnet::allowed('opa',$ENV{'request.course.id'}) || 
	 &Apache::lonnet::allowed('opa',$ENV{'request.course.id'}.'/'.
				  $ENV{'request.course.sec'})
	 )) {

        &Apache::loncommon::content_type($r,'text/html');
        $r->send_http_header;

	if (($ENV{'form.crsenv'}) || (!$ENV{'request.course.fn'})) {
# ---------------------------------------------- This is for course environment
# -------------------------- also call if toplevel map coudl not be initialized
	    &crsenv($r);
	} elsif ($ENV{'form.overview'}) {
# --------------------------------------------------------------- Overview mode
	    &overview($r);
	} else {
# --------------------------------------------------------- Bring up assessment
	    &assessparms($r);
	}
    } else {
# ----------------------------- Not in a course, or not allowed to modify parms
	$ENV{'user.error.msg'}=
	    "/adm/parmset:opa:0:0:Cannot modify assessment parameters";
	return HTTP_NOT_ACCEPTABLE;
    }
    return OK;
}

1;
__END__

=pod

=back

=cut