#!/bin/bash -e

if tty -s; then
    DMENU=fzf
    SUDO=sudo
else
    DMENU=/usr/local/bin/dmenu
    SUDO=pkexec
fi

if [ "$EUID" != 0 ]; then
    exec "$SUDO" env DISPLAY="$DISPLAY" XAUTHORITY="$XAUTHORITY" \
        "$BASH" -- "${BASH_SOURCE[0]}" "$@"
fi

if [ -z "$1" ]; then
    set -- "$(basename -s.conf /etc/wireguard/*.conf | "$DMENU")"
fi

while read -r i; do
    wg-quick down "$i"
done < <(wg show interfaces)

if [ "$1" != off ]; then
    wg-quick up "$1"
fi