#!/bin/sh

case "$1" in
  start | restart | reload)
    if [ ! -d /sys/class/gpio/gpio0/ ]; then
        echo 0 > /sys/class/gpio/export
        echo in > /sys/class/gpio/gpio0/direction
    fi
    printf "Checking the reset button: "
    if [ $(cat /sys/class/gpio/gpio0/value) -eq 0 ]; then
        echo "PRESSED"
        # Wipe overlay partition and reboot
        echo "Let's start wipe overlay partition (/dev/mtd4)"
        /usr/sbin/sysupgrade -n -z
    else
        echo "NOT PRESSED"
    fi
    exit $?
    ;;
  stop)
    exit 0
    ;;
  *)
    echo "Usage: $0 {start|stop|restart}"
    exit 1
    ;;
esac