cd /opt/LJ
echo -e "\n\e[1;31m"
cat << HEREDOC
 \ \        /      |                                    |               |          |
  \ \  \   /  _ \  |   __|   _ \   __ \__ \    _ \      __|   _ \       |          |
   \ \  \ /   __/  |  (     (   |  |   |   |   __/      |    (   |      |      \   |
    \_/\_/  \___| _| \___| \___/  _|  _|  _| \___|     \__| \___/      _____| \___/
HEREDOC
echo -e "\e[0m\n"

# Check the ip address on the machine
checkNetwork(){

  echo -e "\Checking network connectivity..."
  ping=$( ping 1.1.1.1 -c 1 -W 2 &>/dev/null; echo $?;)

  # Net is working, escape
  if [[ 0 -eq $ping ]] ; then
    echo -e "\n  OK, Use this IP Address for GUEST_IP : $( ip address show | grep global | awk '{print $2}'|sed -e 's=/.*==' ) \n"
    return
  fi

  echo -e "\nSeems you can't reach internet..."

  # Get the ethernet interface
  # 772 is the loopback device, cf. http://lxr.linux.no/linux+v3.0/include/linux/if_arp.h#L67
  for f in /sys/class/net/* ; do
    [[ 772 != $(cat "$f/type" ) ]] && interface=$(basename $f)
  done

  if [[ -z "$interface" ]] ; then
    echo -e "\e[31mFatal Error : no network interface  configured.";
      # Eventually, use nm-tui for a graphical (ncurses install)
      read -e -p "(Experts only) Do you want to set up network via network-manager UI? [yN]: "
      [[ "${REPLY^^}" == "Y" ]] && { nmtui; return; }

  else
    echo "OK, network interface '$interface' found"
  fi

  # Ensure the interface is up
  ip l set $interface up

  ipList=$( ip address show | grep global )
  ipRoute=$( ip route show | grep default )

  [[ -z "$ipList" ]] && {
    echo -e "\nNo IP address configured. Please set one."
    read -e -i '192.168.1.90/24' -p "Which address and range do you want to use (or 'x' to skip)? " ipAddr
    [[ 'x' != "$ipAddr" ]] && {
      ip address add $ipAddr dev $interface
    }
  }
  [[ -z "$ipRoute" ]] && {
    echo -e "\nNo IP route configured. Please set one."
    read -e -i '192.168.1.1' -p "Which routing address do you want to use (or 'x' to skip)? " ipAddr
    [[ 'x' != "$ipAddr" ]] && {
      ip route add default via $ipAddr dev $interface
    }
  }


}
checkNetwork
[[ ! -f /tmp/.first_run ]] && {
        touch /tmp/.first_run ;
        echo -e "\e[1mCaution! configuring the server and lasers network is mandatory for the app to work."
        echo -e "Type the "c" key immediately to start the configuration."
        echo -e "\e[0m"
        echo -e "Everytime you will login, the configure and documentation options will be offered to you."
        echo -e "Or use the commands 'config' or 'usage' any time to access the same functions."
        echo -e "\e[0m"
}
config(){ cd /opt/LJ ; /usr/bin/python3 configure.py; }
usage(){ cat /opt/LJ/README.md; }

echo -e "\e[1m"
read -e -n 1 -p "Do you want to (c)onfigure the app, (r)ead documentation, or (n)othing: "
echo -e "\e[0m"
case $REPLY in
        (c):
                config
                ;;
        (r):
                usage
                ;;
esac