#!/bin/sh -e
test -f "$1" || cd "$XDG_DATA_HOME/openvpn"
case "$1" in
    ("") tmux new-session -s "vpn" "tmux ls; $SHELL";;
    (forti)
        if ip route | grep -q ppp0
        then echo "Device ppp0 already in use!"
        else sudo tmux new-session -s "$1" '
            set -x
            route="$(ip route | grep default | sort | head -1)"
            # Start openfortivpn in the background
            openfortivpn &
            VPN_PID=$!
            # Wait a little for the VPN to establish the connection
            sleep 5
# TODO Loop
            # Delete the default route set by openfortivpn (ppp0)
            ip route del default dev ppp0
            # Add the default route via the local network
            eval "ip route add $route"
            ip route add 134.245.0.0/16 dev ppp0;
            ip route
            wait $VPN_PID
            echo "VPN has disconnected."
        '
        fi
        ;;
    (*) tmux new-session -s "$@" "sudo openvpn $@ || read";;
esac