#!/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" \
        XDG_CACHE_HOME="$XDG_CACHE_HOME" "$BASH" -- "${BASH_SOURCE[0]}" "$@"
fi

if [ "$1" != off ]; then
    set -- "$(basename -s.conf "/etc/wireguard/$1"*.conf | "$DMENU")"
    if ! wg | grep -q "$1"; then
        wg-quick up "$1"
    fi
fi

while read -r i; do
    wg-quick down "$i"
done < <(ip -br link show type wireguard | awk "\$1 != \"$1\"{print \$1}")

kill -37 "$(cat "$XDG_CACHE_HOME/sbar/pid")"