#!/usr/bin/env bash
# Pre-commit hook: regenerate the Docusaurus tool/resource reference when
# any tool/resource module is part of the commit. Installed by
# tools/install-hooks.sh; opt-in (devs without the hook see no behavior change).
# To bypass for a single commit: git commit --no-verify

set -e

REPO_ROOT="$(git rev-parse --show-toplevel)"
GENERATOR="${REPO_ROOT}/tools/generate_docs_reference.py"

if [[ ! -f "$GENERATOR" ]]; then
  echo "pre-commit: $GENERATOR missing; skipping docs regeneration." >&2
  exit 0
fi

relevant_paths='^Server/src/services/(tools|resources|registry)/'

# Look at the staged change set only — exclude pure deletions.
staged=$(git diff --cached --name-only --diff-filter=ACMR)

if ! grep -qE "$relevant_paths" <<<"$staged"; then
  exit 0
fi

echo "pre-commit: tool/resource module changes detected — regenerating /website/docs/reference/"

# Prefer uv if available (matches how the Server's deps are pinned). Fall back
# to system python — the generator handles its own sys.path setup.
if command -v uv >/dev/null 2>&1 && [[ -f "${REPO_ROOT}/Server/pyproject.toml" ]]; then
  (cd "${REPO_ROOT}/Server" && uv run python "$GENERATOR")
else
  python3 "$GENERATOR"
fi

# Stage any reference files that changed so the commit captures them.
if ! git diff --quiet -- "website/docs/reference"; then
  echo "pre-commit: staging regenerated reference pages."
  git add website/docs/reference
fi

exit 0