#!/bin/sh

set -e

#
# POSIX-compliant shell function
# to check for the existence of a command
# Return 0 if found
#
pathfind() {
    OLDIFS="$IFS"
    IFS=:
    for p in $PATH; do
        if [ -x "$p/$*" ]; then
            IFS="$OLDIFS"
            return 0
        fi
    done
    IFS="$OLDIFS"
    return 1
}


case "${1}" in
	remove)
		_USERNAME="ftp"
		_GROUPNAME="${_USERNAME}"
		_DIRECTORY="/srv/ftp"

		pathfind deluser
		if [ $? = 0 ] ;
		then
			deluser --quiet --system ${_USERNAME}
		fi

		pathfind delgroup
		if [ $? = 0 ] ;
		then
			delgroup --quiet --system --only-if-empty ${_GROUPNAME} || true
		fi

		if [ -d "${_DIRECTORY}" ]
		then
			rmdir --ignore-fail-on-non-empty "${_DIRECTORY}" || true
		fi
		;;

	purge)
#
# purge systemd files
#
	    rm -f /etc/systemd/system/vsftpd.service
	    rm -f /etc/systemd/system/multi-user.target.wants/vsftpd.service
	    rm -f /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/vsftpd.service
	    rm -f /var/lib/systemd/deb-systemd-helper-enabled/vsftpd.service.dsh-also
	    rm -f /var/lib/systemd/deb-systemd-helper-masked/vsftpd.service
	    if [ -d /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/ ]; then
    		rmdir --ignore-fail-on-non-empty /var/lib/systemd/deb-systemd-helper-enabled/multi-user.target.wants/
	    fi
	    if [ -d /var/lib/systemd/deb-systemd-helper-enabled ]; then
    		rmdir --ignore-fail-on-non-empty /var/lib/systemd/deb-systemd-helper-enabled
	    fi
	    if [ -d /var/lib/systemd/deb-systemd-helper-masked ]; then
		rmdir --ignore-fail-on-non-empty /var/lib/systemd/deb-systemd-helper-masked
	    fi
	    ;;

	upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)

		;;

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

# Automatically added by dh_installinit
if [ "$1" = "purge" ] ; then
	update-rc.d vsftpd remove >/dev/null
fi


# In case this system is running systemd, we make systemd reload the unit files
# to pick up changes.
if [ -d /run/systemd/system ] ; then
	systemctl --system daemon-reload >/dev/null || true
fi
# End automatically added section
# Automatically added by dh_systemd_enable
if [ "$1" = "remove" ]; then
	if [ -x "/usr/bin/deb-systemd-helper" ]; then
		deb-systemd-helper mask vsftpd.service >/dev/null
	fi
fi

if [ "$1" = "purge" ]; then
	if [ -x "/usr/bin/deb-systemd-helper" ]; then
		deb-systemd-helper purge vsftpd.service >/dev/null
		deb-systemd-helper unmask vsftpd.service >/dev/null
	fi
fi
# End automatically added section
# Automatically added by dh_installdebconf
if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
	. /usr/share/debconf/confmodule
	db_purge
fi
# End automatically added section


exit 0