#!/usr/bin/env bash
# Installs the pre-commit hook for this repo.
# Idempotent: re-running overwrites the existing hook with the current template.
set -euo pipefail

REPO_ROOT="$(git rev-parse --show-toplevel)"
HOOK_DIR="$REPO_ROOT/.git/hooks"
HOOK_PATH="$HOOK_DIR/pre-commit"

mkdir -p "$HOOK_DIR"

cat > "$HOOK_PATH" <<'HOOK'
#!/usr/bin/env bash
set -euo pipefail

REPO_ROOT="$(git rev-parse --show-toplevel)"
cd "$REPO_ROOT"

if [ -f .venv/bin/activate ]; then
    # shellcheck disable=SC1091
    source .venv/bin/activate
fi

echo "[pre-commit] ruff check ..."
ruff check .

echo "[pre-commit] pytest -q ..."
pytest -q

echo "[pre-commit] OK"
HOOK

chmod +x "$HOOK_PATH"
echo "Pre-commit hook installed at $HOOK_PATH"