#!/bin/sh

version=`cat /cloud_version`
sleep_time_1=60
sleep_time_2=300
sleep_time_3=600
sleep_time_4=1800
sleep_time_5=3600

dynamic_sleep() {
	if [ $retry_count -lt 5 ]; then
		let retry_count=$retry_count+1
	fi
	eval sleep_time=\$sleep_time_$retry_count
	sleep $sleep_time
}

start() {
	[ -d /opt ] && {
		/opt/xagent/run-xagent.sh
		/www/cgi-bin/readycloud_control.cgi
		sleep 2
		readycloud_enable=$(/bin/config get readycloud_enable)
		if [ "$readycloud_enable" = "1" ]; then
			readycloud_user_admim="$(/bin/config get readycloud_user_admin)"
			readycloud_user_passsword="$(/bin/config get readycloud_user_password)"
			./opt/rcagent/scripts/register.sh $readycloud_user_admim $readycloud_user_passsword
		fi
	}
}

uninstall() {
	[ -s /opt/filelist ] && cat /opt/filelist | xargs rm -f
	rm -rf /opt
}

checkversion() {
	[ -d /opt ] || return 1
	[ "x$(grep $version /opt/version)" = "x" ] && uninstall
}

backup() {
	[ -s /overlay/opt/filelist ] || return 1
	while read file; do
		target="/tmp/clouddir$(dirname $file)"
		mkdir -p $target
		cp -f $file $target
	done < /overlay/opt/filelist
}

restore() {
	[ -d /tmp/clouddir ] || return 1
	cp -fpR /tmp/clouddir/overlay/* /overlay
	rm -rf /tmp/clouddir
}

install_local(){
	tar -zxvf /lib/readygeniecloud-r7800new-20161026-01.tar.gz -C /
	echo 20161026 > /opt/version
	sed '2s/^/source \/etc\/profile\n/' /opt/rcagent/run_server.sh > /tmp/run_server.sh
	cp /tmp/run_server.sh /opt/rcagent/run_server.sh

	start
}

update() {
	local cloud_binary_install=$(/bin/config get cloud_binary_install)
	[ -f /tmp/.cloud_updated ] && return 1
	PID_file=/var/run/cloud.pid
	[ -f $PID_file ] && return 1
	install_local
	echo "$$" > $PID_file
	echo "start to get info from ftp://updates1.netgear.com/sw-apps/ready-genie-cloud/r7800/"
	retry_count=0
	while [ 1 ]; do
		curl ftp://updates1.netgear.com/sw-apps/ready-genie-cloud/r7800/ 2>/dev/null | grep readygeniecloud-r7800new-*-.*.tar.gz > /tmp/cloud_info
		[ -s /tmp/cloud_info ] && break
		echo "cannot access ftp://updates1.netgear.com/sw-apps/ready-genie-cloud/r7800/ or don't find readygeniecloud tarball with version $version"
		dynamic_sleep
	done
	fullversion=`tail -1 /tmp/cloud_info | awk '{print $9}'`
	if [ -f /opt/version -a "x$(cat /opt/version)" = "x$fullversion" ]; then
		rm -f /tmp/cloud_info
		touch /tmp/.cloud_updated
		rm -f $PID_file
		echo "the readygeniecloud on update server is same as on R/W filesystem"
		start
		return 1
	fi
	size=`tail -1 /tmp/cloud_info | awk '{print $5}'`
	echo "start to download ftp://updates1.netgear.com/sw-apps/ready-genie-cloud/r7800/$fullversion"
	retry_count=0
	while [ 1 ]; do
		curl ftp://updates1.netgear.com/sw-apps/ready-genie-cloud/r7800/$fullversion -o /tmp/cloud.tar.gz 2>/dev/null
		[ "$(wc -c /tmp/cloud.tar.gz | awk '{print $1}')" = "$size" ] && break
		echo "fail to download ftp://updates1.netgear.com/sw-apps/ready-genie-cloud/r7800/readygeniecloud-r7800-$fullversion"
		dynamic_sleep
	done
	uninstall
	mkdir /tmp/clouddir
	tar xfz /tmp/cloud.tar.gz -C /tmp/clouddir
	echo $fullversion > /tmp/clouddir/opt/version
	touch /tmp/clouddir/opt/filelist
	find /tmp/clouddir -type f | sed 's/\/tmp\/clouddir/\/overlay/' > /tmp/clouddir/opt/filelist
	cp -fpR /tmp/clouddir/* /
	rm -f /tmp/cloud_info
	rm -f /tmp/cloud.tar.gz
	rm -rf /tmp/clouddir
	touch /tmp/.cloud_updated
	# add newline "source /etc/profile" in file /opt/rcagent/run_server.sh
	sed '2s/^/source \/etc\/profile\n/' /opt/rcagent/run_server.sh > /tmp/run_server.sh
	cp /tmp/run_server.sh /opt/rcagent/run_server.sh

	echo $fullversion | cut -d - -f 3 > /cloud_version
	echo "install ftp://updates1.netgear.com/sw-apps/ready-genie-cloud/r7800/$fullversion to R/W filesystem successfully"
	start
	rm -f $PID_file
}

case "$1" in
	start)
	start
	;;
	backup)
	backup
	;;
	restore)
	restore
	;;
	checkversion)
	checkversion
	;;
	update)
	update
	;;
esac