#!/usr/bin/sh

set -e
set -u

TMP=$(/usr/bin/mktemp --directory --quiet)
trap "/usr/bin/rm --force --recursive ${TMP}" EXIT
BOOT=$(/usr/bin/grep '/boot' '/etc/fstab' | /usr/bin/mawk '$1 !~ /^#/ && $2 ~ /^[/]/ {print $2}')
/usr/bin/test -n "${BOOT}"

case "${1}" in
  install)
    /usr/bin/install --directory '/opt/pironman5'
    if ! /usr/bin/grep --quiet 'sunfounder-pironman5' "${BOOT}/config.txt"; then
      /usr/bin/echo '' >> "${BOOT}/config.txt"
      /usr/bin/echo '## sunfounder-pironman5' >> "${BOOT}/config.txt"
      /usr/bin/echo '##    Enable the SunFounder Pironman 5 driver.' >> "${BOOT}/config.txt"
      /usr/bin/echo '##' >> "${BOOT}/config.txt"
      /usr/bin/echo 'dtoverlay=sunfounder-pironman5,ir=off' >> "${BOOT}/config.txt"
    fi
    /usr/bin/echo 'BOOT_UART=1' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/echo 'BOOT_ORDER=0xf41' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/echo 'POWER_OFF_ON_HALT=1' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/echo 'WAIT_FOR_POWER_BUTTON=1 ' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/echo 'BOOT_WATCHDOG_TIMEOUT=15  ' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/echo 'MAX_RESTARTS=1 ' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/echo 'DISABLE_HDMI=1' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/echo '' >> "${TMP}/raspberrypi-eeprom.cfg"
    /usr/bin/rpi-eeprom-config --apply "${TMP}/raspberrypi-eeprom.cfg" > '/dev/null' 2>&1
    /usr/bin/echo ''
    /usr/bin/echo '########################################################'
    /usr/bin/echo '#                                                      #'
    /usr/bin/echo '# ! Restart the device to load the necessary drivers ! #'
    /usr/bin/echo '#                                                      #'
    /usr/bin/echo '########################################################'
    /usr/bin/echo ''
  ;;
  upgrade)
    /usr/bin/install --directory '/opt/pironman5'
  ;;
esac