#!/bin/sh 
# $1 : Next timer seconds from 1970 from 1970/01/01, UTC
# $2 : Next timer seconds from now
# $3 : Next timer title
# $4 : Shutdown forced

# read from acpi-rtcwakeup conf file
. /etc/vdr/vdr-acpi-acpirtcshutdown.conf
WAKEUP_FILE="/var/cache/vdr/acpiwakeup.time"
if [ ! -f "$WAKEUP_FILE" ]
then
  touch $WAKEUP_FILE
fi

# Defaults:
[ -z "$ACPI_REGULAR_TIME" ]  && export ACPI_REGULAR_TIME="00:00"
[ -z "$ACPI_START_AHEAD" ]   && export ACPI_START_AHEAD="300"

    datefixplus=$(date +%s -d 'tomorrow '"$ACPI_REGULAR_TIME"' +1 day')
    if [ $1 -eq 0 ] || [ $datefixplus -lt $1 ]; then
      # wakeup time if next timer ahead > 24h to regular wakeup time
      date +%s -d 'tomorrow '"$ACPI_REGULAR_TIME"'' > $WAKEUP_FILE
      else
      # wakeup time for next timer
      echo $(($1 - $ACPI_START_AHEAD)) > $WAKEUP_FILE
    fi
exit