#!/bin/bash

#This script will help when testing battery duration running a raspberry pi.
#29SEPT2020 KM4ACK
x=1
DATE=$(date)
FILEDATE=$(date +%d%b%Y-%H%M%S)
FILE=$HOME/Desktop/batterytest-$FILEDATE.txt

cat <<EOF

Running a pi until a power failure has the potential
to corrupt the SD card. It is recommended that you 
back up your SD card before using this script.

EOF
read -p "Continue? y/n " ANS
if [ $ANS != 'y' ] && [ $ANS != 'Y' ];then
exit
fi

clear

echo "********************************"
echo "********Whole hours ONLY********"
echo "********************************"
read -p "How many hours should we run the test? " ANS
echo
read -p "Auto shutdown when test completes? y/n " SHUTANS
MIN=$(($ANS*60))
CYCLES=$(($MIN/10+1))
echo "Test started at $DATE" >> $FILE
echo "Test set to run for $ANS hours" >> $FILE
while [ $x -le "$CYCLES" ]
do
  clear
  date >> $FILE
  TESTTIME=$(($x*10-10))
  echo;echo;echo "Time in 10 minute increments"
  echo "Minutes since test began $TESTTIME"
  echo "Cycle number - $x"
  echo;echo "Press ctrl+c to abort"
  x=$(( $x + 1 ))
  sleep 600
done

echo "Test ended before battery depleted" >> $FILE

if [ $SHUTANS = 'y' ] || [ $SHUTANS = 'Y' ]; then
sudo shutdown -h now
fi