#!/bin/bash

# Exit if no Pushgateway URL is defined
[ -z "$PROM_URL" ] && exit

case $1 in
  start)    state='1';  status='started' ;;
  stop|0)   state='0';  status='stopped' ;;
  info|1)   state='0';  status='stopped with info' ;;
  fail|2|*) state='-1'; status='failed' ;;
esac

cat <<EOF | curl --data-binary @- $PROM_URL
# TYPE borg_hook_state gauge
# HELP borg_hook_state 1=started 0=stopped -1=failed
borg_hook_state $state
# TYPE borg_hook_state_timestamp gauge
borg_hook_state_timestamp{label="$status"} `date +%s`
EOF