#!/bin/bash
#-------------------------------------------------
#颜色函数
sdone() { (echo -e "\033[32;1m$*\033[0m";) }
sinfo() { (echo -e "\033[34;1m$*\033[0m";) }
swarn() { (echo -e "\033[33;1m$*\033[0m";) }
serro() { (echo -e "\033[31;1m$*\033[0m";) }
snote() { (echo -e "\033[35;1m$*\033[0m";) }
sshow() { (echo -e "\033[36;1m$*\033[0m";) }
#-------------------------------------------------
dstip=$1
dstnif=$2
dstmtc=$3
if [ -z "$dstip" -o -z "$dstnif" ]; then
	serro "Please input: $0 [ip] [ifname] <metric>"
	exit 1
fi
if [ -z "$dstmc" ]; then
	export dstmc=150
fi
sudo bash -c "echo  source-directory /etc/network/interfaces.d > /etc/network/interfaces"
sudo bash -c "mkdir -p     /etc/network/interfaces.d   > /dev/null 2>&1"
sudo bash -c "rm    -rf    /etc/network/interfaces.d/* > /dev/null 2>&1"
netno=0
sshow "Config static ip GO"
netif=$(ls /sys/class/net/)
export ret=0
echo "dstip:$dstip"
echo "dstnif:$dstnif"
for afile in $netif
do
	sshow "check $afile ..."
	if [ "xlo" == "x$afile" ]; then
		sshow "config lo ..."
		sudo bash -c "echo 'auto  $afile'               >  /etc/network/interfaces.d/${netno}_setup_$afile"
		sudo bash -c "echo 'iface $afile inet loopback' >> /etc/network/interfaces.d/${netno}_setup_$afile"
	else
		echo "check x$afile == x$dstnif ?"
		if [ "x$afile" == "x$dstnif" ]; then
			sdone "find nif: $afile "
			sudo bash -c "echo 'auto  $afile'              >  /etc/network/interfaces.d/${netno}_setup_$afile"
			sudo bash -c "echo 'iface $afile inet static' >> /etc/network/interfaces.d/${netno}_setup_$afile"
			sudo bash -c "echo 'metric  $dstmc'           >> /etc/network/interfaces.d/${netno}_setup_$afile"
			sudo bash -c "echo 'address $dstip'           >> /etc/network/interfaces.d/${netno}_setup_$afile"
			sudo bash -c "echo 'netmask 255.255.255.0'    >> /etc/network/interfaces.d/${netno}_setup_$afile"
			sudo bash -c "echo 'gateway 192.168.1.1'      >> /etc/network/interfaces.d/${netno}_setup_$afile"
			#223/Aali,119/TengXun,180/Baidu
			sudo bash -c "echo 'dns-nameservers 223.5.5.5 119.29.29.29 180.76.76.76'>> /etc/network/interfaces.d/${netno}_setup_$afile"
			echo "cat /etc/network/interfaces.d/${netno}_setup_$afile"
			cat /etc/network/interfaces.d/${netno}_setup_$afile
			export ret=1
			break
		fi
	fi
	let netno=netno+1
done
if [ "x$ret" == "x1" ]; then
	echo "sudo /etc/init.d/networking restart&"
	sudo /etc/init.d/networking restart&
	sdone DONE
else
	serro "find nif: $afile ERROR]"
fi