#!/usr/bin/env bash
set -x
set -e
set -o pipefail

# sleep interval (seconds)
: ${sleep_interval:=1}
# extend_timeout_interval second(s)
: ${extend_timeout_interval:=1}
# number of sleep_intervals before READY=1
: ${start_intervals:=10}
# number of sleep_intervals before exiting
: ${stop_intervals:=10}
# run intervals, number of sleep_intervals to run
: ${run_intervals:=7}

# We convert to usec
extend_timeout_interval=$(( $extend_timeout_interval * 1000000 ))

trap "{ touch /${SERVICE}.terminated; exit 1; }"  SIGTERM SIGABRT

rm -f /${SERVICE}.*
touch /${SERVICE}.startfail

systemd-notify EXTEND_TIMEOUT_USEC=$extend_timeout_interval
while [ $start_intervals -gt 0 ]
do
    sleep $sleep_interval
    start_intervals=$(( $start_intervals - 1 ))
    systemd-notify EXTEND_TIMEOUT_USEC=$extend_timeout_interval
done

systemd-notify --ready --status="Waiting for your request"

touch /${SERVICE}.runtimefail
rm /${SERVICE}.startfail

systemd-notify EXTEND_TIMEOUT_USEC=$extend_timeout_interval
while [ $run_intervals -gt 0 ]
do
    sleep $sleep_interval
    run_intervals=$(( $run_intervals - 1 ))
    systemd-notify EXTEND_TIMEOUT_USEC=$extend_timeout_interval
done

systemd-notify STOPPING=1

touch /${SERVICE}.stopfail
rm /${SERVICE}.runtimefail

systemd-notify EXTEND_TIMEOUT_USEC=$extend_timeout_interval
while [ $stop_intervals -gt 0 ]
do
    sleep $sleep_interval
    stop_intervals=$(( $stop_intervals - 1 ))
    systemd-notify EXTEND_TIMEOUT_USEC=$extend_timeout_interval
done

touch /${SERVICE}.success
rm /${SERVICE}.stopfail

exit 0