#!/bin/bash

PLAYBOOK="iiab-support.yml"
INVENTORY="ansible_hosts"
CWD=`pwd`

export ANSIBLE_LOG_PATH="$CWD/iiab-install.log"

if [ ! -f $PLAYBOOK ]; then
    echo -e "\nEXITING: $PLAYBOOK not found.\n"
    echo -e "Please run this command from /opt/iiab/iiab (top of git repo).\n"
    exit 1
fi

echo -en "\n\nWhat OpenVPN machine name (openvpn_handle) do you want? "
read ans < /dev/tty
if [ "$ans" != "" ]; then
    sed -i -e "s/^openvpn_handle:.*/openvpn_handle: $ans/" /etc/iiab/local_vars.yml
    echo -e "\nYour machine's openvpn_handle is now set, in /etc/iiab/local_vars.yml\n"
else
    echo -e "\nWARNING: openvpn_handle remains unchanged in /etc/iiab/local_vars.yml\n"
fi

sed -i -e "s/^openvpn_install:.*/openvpn_install: True/" /etc/iiab/local_vars.yml
sed -i -e "s/^openvpn_enabled:.*/openvpn_enabled: True/" /etc/iiab/local_vars.yml

echo -e "Now let's (re)install and (re)start OpenVPN...\n"


ansible-playbook -i $INVENTORY $PLAYBOOK --connection=local


echo -en "\nYour OpenVPN machine name (openvpn_handle) is: "
cat /etc/iiab/openvpn_handle

vpnip=$(ip a | grep tun0$ | awk '{print $2}')

if [ "$vpnip" != "" ]; then
    echo -e "\nYour OpenVPN IP address (which can change) is: $vpnip\n\n"
else
    echo -e "\nWARNING: OpenVPN IP ADDRESS NOT FOUND!\n\n"
fi


echo -e "OpenVPN TIPS:\n"

echo -e "  1. Check your Internet connection: run 'ping 8.8.8.8' and 'ping mit.edu'"
echo -e "  2. Run 'ip a' and look for a 'tun0' IP address like 10.8.0.x"
echo -e "  3. Check your OpenVPN connection: run 'ping 10.8.0.1'"
echo -e "  4. Sometimes waiting a minute helps -- then retry steps 2 and 3"
echo -e "  5. If necessary, run 'systemctl restart openvpn@xscenet'"
echo -e "  6. Read 'How can I remotely manage my Internet-in-a-Box?' at"
echo -e "     http://FAQ.IIAB.IO to learn about alternatives like ngrok,"
echo -e "     serveo, remot3.it and TeamViewer\n\n"