#!/bin/bash
# rc.tailscale - Tailscale VPN daemon for Slackware

TAILSCALED=/usr/sbin/tailscaled
STATEDIR=/var/lib/tailscale
PIDFILE=/var/run/tailscaled.pid

start() {
    if [ -f "$PIDFILE" ] && kill -0 "$(cat $PIDFILE)" 2>/dev/null; then
        echo "tailscaled is already running"
        return
    fi
    echo "Starting tailscaled..."
    $TAILSCALED --state=$STATEDIR/tailscaled.state \
                --socket=/var/run/tailscale/tailscaled.sock \
                --port=41641 \
                &>/var/log/tailscaled.log &
    echo $! > $PIDFILE
    echo "tailscaled started (pid $(cat $PIDFILE))"
}

stop() {
    if [ -f "$PIDFILE" ]; then
        echo "Stopping tailscaled..."
        kill "$(cat $PIDFILE)" 2>/dev/null
        rm -f "$PIDFILE"
    else
        echo "tailscaled is not running"
    fi
}

status() {
    if [ -f "$PIDFILE" ] && kill -0 "$(cat $PIDFILE)" 2>/dev/null; then
        echo "tailscaled is running (pid $(cat $PIDFILE))"
    else
        echo "tailscaled is not running"
    fi
}

case "$1" in
    start)   start ;;
    stop)    stop ;;
    restart) stop; sleep 1; start ;;
    status)  status ;;
    *)       echo "Usage: $0 {start|stop|restart|status}" ;;
esac