#!/usr/bin/env bash 

set -eu

DESC="Fixe DHCP sur bigboss pour servir tiny (IP, nom d'hôte)"

HELP="
Bigboss et tiny doivent avoir été configurés par baseConfig.
"

repairDHCP() {
	echo
	echo "Repair DHCP"

	tinyMAC=$(vdn-ssh root@tiny ifconfig eth1 | grep ether)
	tinyMAC=$(echo "$tinyMAC" | \
		sed -re 's/^.*ether ([[:xdigit:]:]*).*$/\1/')

	vdn-ssh root@bigboss "
		f=/etc/dhcp3/dhcpd.conf
		[ -e /etc/init.d/isc-dhcp-server ] && f=/etc/dhcp/dhcpd.conf
		cat <<-EOF > \$f
		subnet 192.168.30.0 netmask 255.255.255.0 {
		}
		host tiny {
			hardware ethernet ${tinyMAC};
			option host-name tiny;
			fixed-address tiny;
		} 
EOF

                f=/etc/default/isc-dhcp-server
                cat <<-EOF > \$f
INTERFACESv4=\"eth0\"
INTERFACESv6=\"\"
EOF

		set -x
		sleep 10

		systemctl enable isc-dhcp-server
		systemctl stop isc-dhcp-server
		systemctl start isc-dhcp-server
                
                #if [ -e /etc/init.d/dhcp3-server ]; then
                #        /etc/init.d/dhcp3-server stop &> /dev/null
                #        /etc/init.d/dhcp3-server start
                #elif [ -e /etc/init.d/isc-dhcp-server ]; then
                #        /etc/init.d/isc-dhcp-server stop &> /dev/null
                #        /etc/init.d/isc-dhcp-server start
                #fi

                "
}

run() {
	setErrorHandler
	echoStart

	requireSshGuests bigboss tiny

	repairDHCP

	echoDoneWithTestErrors
}