#!/bin/sh
# prerm script for wims-moodle
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <prerm> `remove'
#        * <old-prerm> `upgrade' <new-version>
#        * <new-prerm> `failed-upgrade' <old-version>
#        * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
#        * <deconfigured's-prerm> `deconfigure' `in-favour'
#          <package-being-installed> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package


####### reading dirroot and dataroot in Moodle's configuration file #######
d=">dirroot "
dirroot=$(grep $d /etc/moodle/config.php | head -1 | sed "s/.*'\\(.*\\)'.*/\1/")
d=">dataroot "
dataroot=$(grep $d /etc/moodle/config.php | sed "s/.*'\\(.*\\)'.*/\1/")
###########################################################################

unpatch_lang(){
    # unpatches the files assignment.php to remove the type Wims.
    for path in $dirroot/lang $dataroot/lang; do
	f=assignment.php
	dirs=$(find $path -mindepth 1 -maxdepth 1 -type d)
	for d in $dirs; do
	    lang=$(basename $d)
	    cd $d
	    [ -f "$f" ] &&
	      cat $f | grep -v typewims > $f.tmp && mv $f.tmp $f
	    rm -f wims.php
	done
    done
}

case "$1" in
    remove|upgrade|deconfigure)
	unpatch_lang
    ;;

    failed-upgrade)
    ;;

    *)
        echo "prerm called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0
