#!/bin/bash

if [ -d /opt/idssys/defaults ]; then
	source /opt/idssys/defaults/colors.inc
	source /opt/idssys/defaults/default.inc
else
	source /dev/stdin <<< "$(curl -sL http://go.scity.us/colorsinc)"
	source /dev/stdin <<< "$(curl -sL http://go.scity.us/defaultinc)"
fi

if [ -f /etc/netplan/eth0.yaml ]; then
	netfile=/etc/netplan/eth0.yaml
elif [ -f /etc/netplan/network.yaml ]; then
	netfile=/etc/netplan/network.yaml
elif [ -f /etc/network/interfaces ]; then
	netfile=/etc/network/interfaces
else
	echo -e "No network configs found\n"
	exit 1
fi

cat ${netfile}
echo

chmod 0600 ${netfile}

read -p "Do you wish to continue changing the DNS? (Y/n) " choice
case "$choice" in 
[Nn])
	echo -e "${Green}The DNS servers have NOT been updated${Color_Off}"
	exit 0
	;;

* ) if [ -f /etc/netplan/eth0.yaml ] || [ -f /etc/netplan/network.yaml ]; then
		# if [ "${1}" = "offsite" ]; then
			sed -i 's/10.2.1.2,10.10.10.5/10.2.1.6,10.2.1.5/g' ${netfile}
			# sed -i 's/127.0.0.1,10.10.10.5/127.0.0.1,10.2.1.6/g' ${netfile}
		# else
			sed -i 's/10.10.10.5,10.2.1.2/10.10.10.10,10.10.10.11/g' ${netfile}
			sed -i 's/10.10.10.11,10.10.10.10/10.10.10.10,10.10.10.11/g' ${netfile}
			# sed -i 's/127.0.0.1,10.10.10.10,10.2.1.2/127.0.0.1,10.10.10.10/g' ${netfile}
			# sed -i 's/127.0.0.1,10.10.10.11,10.2.1.2/127.0.0.1,10.10.10.11/g' ${netfile}
		# fi

		/usr/sbin/netplan apply
		
	else
		# if [ "${1}" = "offsite" ]; then
			sed -i 's/10.2.1.2 10.10.10.5/10.2.1.6 10.2.1.5/g' ${netfile}
		# else
			sed -i 's/10.10.10.5 10.2.1.2/10.10.10.11 10.10.10.10/g' ${netfile}
			sed -i 's/10.10.10.11 10.10.10.10/10.10.10.10 10.10.10.11/g' ${netfile}
		# fi

		/usr/sbin/service networking restart
		
	fi
	
	cat ${netfile}
	
	echo -e "${Green}The DNS servers have been updated${Color_Off}"
	;;
esac

echo

exit 0