#!/bin/sh
BIN=/usr/bin/wireguard-go
INTERFACE=wg0
CONFIG=/root/wirego/$INTERFACE.conf
IP=$1
DEFAULT_IP=10.50.0.20/24
ROUTE=$(cat wg0.conf | grep AllowedIPs | cut -d "," -f 2-)

pkill wireguard-go

if [ ! -f $BIN ]; then
    echo "ERROR: wireguard-go binary missing"
    exit 1
    else
    echo "INFO: wireguard-go binary found"
fi
if [ ! -f $CONFIG ]; then
    echo "ERROR: No $CONFIG present"
    exit 1
    else
    echo "INFO: config found"
fi
if [ -z "$IP" ]; then
    echo "ERROR: No ip given"
    echo "INFO: Ip example: 192.168.1.1/24"
    IP=$DEFAULT_IP
    echo "INFO: Setting Default ip: $IP"
fi

echo "INFO: launching daemon on interface $INTERFACE"
$BIN $INTERFACE

echo "INFO: adding ip: $IP to interface: $INTERFACE"
ip address add dev $INTERFACE $IP

echo "INFO: loading config file: $CONFIG"
wg setconf $INTERFACE $CONFIG

echo "INFO: bringing up $INTERFACE"
ip link set up dev $INTERFACE


for i in $(echo $ROUTE | tr "," "\n")
do
   ip route add $i dev wg0 proto kernel
done

echo "\n WG SHOW\n"
wg
echo "\n ROUTES\n"
ip route

iptables -D INPUT -i $INTERFACE -j ACCEPT
iptables -A INPUT -i $INTERFACE -j ACCEPT