#! /bin/sh

pw="/usr/sbin/pw"
users="navcron:nav:${PKG_PREFIX}/nav"

setname() {
	# $1: username $2: real name
	$pw usermod "$1" -c "$2" 2>/dev/null
}

cruser() {
	username=`echo $1 | awk -F : '{print $1}'`
	group=`echo $1 | awk -F : '{print $2}'`
	homedir=`echo $1 | awk -F : '{print $3}'`
	name=`echo $1 | awk -F : '{print $4}'`
	shell="/bin/sh"
	
	if ($pw groupshow $group >/dev/null 2>&1)
	then
		echo "Group $group exists, so I will use it."
	else
		if ($pw groupadd $group)
		then
			echo "Added group $group."
		else
			echo "Could not add group $group. Aborting."
			exit 1
		fi
	fi

	if ($pw usershow $username >/dev/null 2>&1)
	then
		echo "User $username exists, so I will use it."
	else
		if ($pw useradd $username -g $group -d $homedir -s $shell -w no)
		then
			echo "Added user $username."
		else
			echo "Could not add user $username. Aborting."
			exit 1
		fi
	fi
}

deluser() {
	username=`echo $1 | awk -F : '{print $1}'`
	group=`echo $1 | awk -F : '{print $2}'`
	homedir=`echo $1 | awk -F : '{print $3}'`

	printf "Attempting to delete user $username: "
	if (printf "" | $pw userdel $username 2>/dev/null)
	then
		echo OK
	else
		echo FAIL
	fi
	printf "Attempting to delete group $group: "
	if ($pw groupdel $group 2>/dev/null)
	then
		echo OK
	else
		echo FAIL
	fi
}

case "$2" in
PRE-INSTALL)
	for user in $users; do cruser $user; done
	setname navcron "NAV User"
	;;
DEINSTALL) for user in $users; do deluser $user; done;;
esac