#!/bin/sh

if [ -z "$PUSHOVER_USER" ] || [ -z "$PUSHOVER_TOKEN" ]; then
  echo "Warning: Pushover user and token are not set" >&2 && logger -t notify.sh "pushover credentials cannot be found"
  exit 1
fi

if [ "$#" -lt 2 ]; then
  echo "Usage: notify.sh <title> <message>" >&2
  exit 1
fi

title="$1"
shift
message="$*"

output=$(/usr/bin/curl -s \
  --form-string "token=$PUSHOVER_TOKEN" \
  --form-string "user=$PUSHOVER_USER" \
  --form-string "title=$title" \
  --form-string "message=$message" \
  https://api.pushover.net/1/messages.json 2>&1)
code=$?

if [ "$code" -ne 0 ]; then
  logger -t notify.sh "curl failed (exit $code): $output"
elif
  echo "$output" | grep -q '"status":0'
then
  logger -t notify.sh "pushover rejected message: $output"
fi