#!/usr/bin/env bash
set -euo pipefail

ROOT_DIR="$(cd "$(dirname "$0")/../.." && pwd)"
PROMPT_FILE="$ROOT_DIR/workflow/REVIEW_PROMPT.md"
RANGE="${1:-HEAD~1}"

if [[ "${1:-}" == "--help" ]]; then
  cat <<'EOF'
Usage: bash scripts/workflow/review_diff.sh [git-diff-range]

Examples:
  bash scripts/workflow/review_diff.sh HEAD~1
  bash scripts/workflow/review_diff.sh main...HEAD
EOF
  exit 0
fi

cat <<EOF
# Review Bundle

## Diff range
\`$RANGE\`

## Diff
\`\`\`diff
EOF

git -C "$ROOT_DIR" diff "$RANGE"

cat <<'EOF'
```

## Prompt
EOF

cat "$PROMPT_FILE"