#!/usr/bin/env bash
set -euo pipefail
if [ "${1:-}" = "--help" ] || [ "${1:-}" = "-h" ]; then
  cat <<'USAGE'
Purpose: Validate database-design-review output. Three required buckets,
         each either populated or "<Bucket>: none" exactly.
Usage:   bash scripts/lint-output.sh <file>   (or stdin)
USAGE
  exit 0
fi
if [ "${1:-}" = "" ] || [ "${1:-}" = "-" ]; then body=$(cat)
elif [ -f "$1" ]; then body=$(cat "$1")
else printf 'error: file not found: %s\n' "$1" >&2; exit 2
fi

issues=0
say() { printf '%s\n' "$1" >&2; issues=$((issues+1)); }

for h in 'Correctness Risks' 'Migration Safety Risks' 'Performance Risks'; do
  if ! grep -qE "^(## ${h}|^${h}: none)\$" <<<"$body"; then
    say "missing \"## ${h}\" or \"${h}: none\""
  fi
done

[ "$issues" -gt 0 ] && exit 1
printf 'ok\n'