#! /bin/bash

TOKEN="A9jDrGFO6Ob-m88"
IP="172.16.1.82"
COUNT_TO_AWAY=900

startedTimeout="n"
away="n"
alertedHome="y"
alertedAway="n"
counter=0

#alert function takes $1 as title, $2 as message. Set TOKEN variable with token.
alert() {
  curl -X POST "https://ths.tnet.space/gotify/message?token=${TOKEN}" -F "title=${1}" -F "message=${2}" -F "priority=4"
}

#stdbuf -oL arping "$IP" | while read line
while read line
do
  echo "$line"
  if [ "$line" = "Timeout" ]; then
    if [ "$startedTimeout" = "n" ]; then
      startedTimeout="y"
      counter=1
      echo "$counter"
    else
      let "counter += 1"
      echo "******** $counter"
      if [ $counter -eq $COUNT_TO_AWAY ]; then
        alert "Status" "Away"
        alertedHome="n"
        alertedAway="y"
      fi
    fi 
  else
    if [ "$startedTimeout" = "y" ]; then
      if [ "$counter" -ge 100 ]; then
        echo "$counter" >> count.hayleyiphone
      fi
      startedTimeout="n"
      counter=0
      if [ "$alertedHome" = "n" ]; then
        alert "Status" "Home"
        alertedHome="y"
      fi
    fi
  fi
done < <(stdbuf -oL arping -W 1 "$IP")