#!/usr/bin/env sh
set -eu

body="${1:-}"

if [ -z "$body" ]; then
  echo "PR body is empty."
  exit 1
fi

if printf "%s" "$body" | grep -Eq 'TODO|todo|\[P[1-3]\]'; then
  echo "PR body includes TODO reference."
  exit 0
fi

echo "PR body must reference the related TODO item."
exit 1