#!/bin/bash
#Alternative method for checking reason for powerup.
#Checks values stored in NVRAM_WAKEUP and if within 10 minutes,
#then must be due to automated processes.

#DESIGN LIMITATION
#Doesn't handle time period around midnight of last night of month

#Enjoy
#BigB

#Get time stored in NVRAM
NVRAM_DAY="`sudo nvram-wakeup |awk '$1=="Day" { print $3 }'`"
NVRAM_HOUR="`sudo nvram-wakeup |awk '$1=="rtcHour" { print $3 }'`"
NVRAM_MIN="`sudo nvram-wakeup |awk '$1=="rtcMin" { print $3 }'`"

#echo "$NVRAM_DAY $NVRAM_HOUR $NVRAM_MIN"

let "NVRAM_TIME = NVRAM_DAY*24*60 + NVRAM_HOUR*60 + NVRAM_MIN"

#Get current date (remove '-u' option for non utc time)
DATE="`date -u +%e%t%H%t%M`"

#parse Date
NOW_DAY="`echo $DATE|awk '{ print $1 }'`"
NOW_HOUR="`echo $DATE|awk '{ print $2 }'`"
NOW_MIN="`echo $DATE|awk '{ print $3 }'`"

#echo "$NOW_DAY $NOW_HOUR $NOW_MIN"

let "NOW_TIME = NOW_DAY*24*60 + NOW_HOUR*60 + NOW_MIN"
#Time 10 minuts ago
let "THEN_TIME = NOW_TIME - 10"


if [ "$NVRAM_TIME" -ge "$THEN_TIME" ]; then
   if [ "$NVRAM_TIME" -le "$NOW_TIME" ]; then
     echo "Automated wakeup, killing Mythfrontend"
     sleep 30
     killall mythfrontend
   else
     echo "Automated wakeup is in future"
   fi
else
  echo "Automated wakeup in in past"
fi