#!/bin/bash
set -eE -o pipefail
trap 'echo "$0:$LINENO:error: \"$BASH_COMMAND\" returned $?" >&2' ERR

if [[ $EUID != 1000 ]]; then
  echo "$0: error run as normal user" >&2
  exit 1
fi

cd /m/md/l/testignore/new
shopt -s nullglob

# we run this cronjob along with sending the test email every 10
# minutes, so give it 2 minutes to arrive, then if there is an email at
# least 23 minutes old, the last 2 test emails have failed.
if [[ ! $1 && $- != *i* ]]; then
  sleep 120
fi

last_sec=0
for file in *; do
  if [[ $file -nt $latest ]]; then
    latest=$file
  fi
done

if [[ $latest ]]; then
  last_sec=$(awk '/^Subject: / {print $3}' $latest)
fi

now=$(date +%s)
limit=$(( now - 60 * 23 ))

if (( last_sec <= limit )); then
  echo $HOSTNAME mailtest failure
  touch /nocow/user/mailtest-failure
else
  rm -f /nocow/user/mailtest-failure
fi

find . -type f -mtime +1 -delete