#!/bin/bash

USE_SSL=false
AUTO_LAUNCH=true

vars=$(getopt -o p:sr --long 'port:,enable-ssh,rebuild,export-vars' -- "$@")
if [ $? -ne 0 ]; then

	echo "usage: docker-run [-r, --rebuild] [-p, --port PORTFORWARD] [-s, --enable-ssh]"
	exit
fi

eval set -- "$vars"

PORT_FORWARD=""
ENABLE_SSH=""
BUILD_OPTS=""
EXPORT_VARS=0

for opt; do

	case "$opt" in
		-p|--port)
			PORT_FORWARD=$2
			shift 2
			;;
		-s|--enable-ssh)
			ENABLE_SSH="true"
			shift
			;;
		-r|--rebuild)
			BUILD_OPTS+=" --rebuild"
			shift
			;;
		--export-vars)
			EXPORT_VARS=1
			shift
			;;
	esac

done

./docker-build $BUILD_OPTS

Q=$?
if [ $Q -ne 0 ]; then

	exit $Q

fi

# generate random UUID for new SUV
# thanks https://stackoverflow.com/questions/34328759
# SUV_ID=$(hexdump -vn8 -e'2/4 "%08x" 1 "\n"' /dev/urandom)
SUV_ID=$(head -c8 < /dev/urandom | xxd -p)

if [ $? -ne 0 ]; then

	echo "failed to generate SUV ID"
	exit

fi

SUV_NAME=i-0$SUV_ID
SUV_DOMAINNAME=.privatesuv.com

echo "provisioning new Docker-based SUV with id $SUV_NAME"

if [ $? -ne 0 ]; then

	echo "'docker build' failed; is it properly installed?"
	exit

fi

# create the network configuration
docker network create --subnet=10.8.0.0/16 mocha-docker

# initiate a container (i.e. 'mocha suv up i-0...' )
if [ "$PORT_FORWARD" != "" ]; then

	if [ "$USE_SSL" == "true" ]; then

		docker run -h $SUV_NAME$SUV_DOMAINNAME --name $SUV_NAME -d -p $PORT_FORWARD:443 mocha-httpd

	else

		docker run -h $SUV_NAME$SUV_DOMAINNAME --name $SUV_NAME -d -p $PORT_FORWARD:80 mocha-httpd

	fi

else
	docker run -h $SUV_NAME$SUV_DOMAINNAME --name $SUV_NAME -d --net mocha-docker -it mocha-httpd # -p 8000:80 mocha-httpd
fi

echo "waiting for network to settle..."
sleep 3

# docker inspect $SUV_NAME
SUV_IP=$(docker container exec $SUV_NAME hostname -i)

Q=$?
if [ $Q -ne 0 ]; then

	echo "Something went wrong; please check your configuration"
	exit $Q

else

	echo "Enter administrative password to add entry to /etc/hosts file if wanted"
	echo -e "$SUV_IP\t\t$SUV_NAME$SUV_DOMAINNAME" | sudo tee -a /etc/hosts

	echo "$SUV_NAME : $SUV_IP"

fi

if [ "$ENABLE_SSH" == "true" ]; then

	docker container exec $SUV_NAME /usr/lib/mocha/create_suv_users
	docker container exec $SUV_NAME service ssh start

	# docker container exec $SUV_NAME cat /etc/mocha/passwd

fi

if [ $EXPORT_VARS -eq 1 ]; then

	export MOCHA_NEW_SUV_NAME=$SUV_NAME

	if [ "$ENABLE_SSH" == "true" ]; then
		export MOCHA_NEW_SUV_PASSWORD_WEBMASTER=$(docker container exec $SUV_NAME cat /etc/mocha/passwd | grep 'webmaster: ' | sed -e 's/webmaster: //g')
	fi

fi

if [ "$AUTO_LAUNCH" == "true" ]; then

	xdg-open https://$SUV_NAME$SUV_DOMAINNAME

fi