#!/bin/sh

set -e

if [ -z $DEVICE ]; then
  DEVICE="tun0"
fi

if [ ! -f "/etc/wireguard/$DEVICE.conf" ]; then
  cd /etc/wireguard
  /scripts/create-config.sh
  exit 0
fi

case "$1" in
  'ls-configs' | 'ls')
    cd /etc/wireguard
    /scripts/ls-configs.sh
    exit 0
    ;;
  'add-client' | 'add')
    cd /etc/wireguard
    /scripts/add-client.sh
    exit 0
    ;;
  'rm-client' | 'show')
    if [ -z $2 ]; then
      echo "Usage: rm-client <client id>"
      exit 1
    fi
    cd /etc/wireguard
    /scripts/rm-client.sh $2
    exit 0
    ;;
  'show-client' | 'show')
    if [ -z $2 ]; then
      echo "Usage: show-client <client id>"
      exit 1
    fi
    cd /etc/wireguard
    /scripts/show-client.sh $2
    exit 0
    ;;
  'purge')
    cd /etc/wireguard
    rm *.conf *.png
    exit 0
    ;;
  'help')
    echo "Usage: <Command> [<Arguments>]"
    echo
    echo "Where Command is one of:"
    echo
    echo "ls      List server and clients sorted by creation date"
    echo "add     Add new client"
    echo "rm      Remove client by ID"
    echo "show    Show client config with qrcode"
    echo "purge   Remove server config and all client configs"
    echo "help    Show this help message"
    echo
    ;;
  *)
    echo "Starting wg-quick on $DEVICE"
    touch "${WG_LOG_FILE}"
    wg-quick up $DEVICE
    echo "done!"
    tail -f "${WG_LOG_FILE}"
    ;;
esac