#!/usr/bin/env bash
# Pre-commit hook: format + test via tox.
# Blocks the commit if formatting, imports, or tests fail.
# Current baseline: ~18s wall-clock. Limit set to 30s for headroom.
#
# Auto-activated by `make install` via git core.hooksPath.

set -e

MAX_SECONDS=30

echo "Running pre-commit gate via tox (${MAX_SECONDS}s limit)..."

# macOS lacks GNU timeout; use perl as a portable fallback.
if command -v timeout &>/dev/null; then
    timeout "${MAX_SECONDS}" tox -e pre-commit
else
    perl -e "alarm ${MAX_SECONDS}; exec @ARGV" -- tox -e pre-commit
fi
exit_code=$?

# Re-stage any files that black/isort reformatted
git add -u

if [ "$exit_code" -eq 142 ] || [ "$exit_code" -eq 124 ]; then
    echo ""
    echo "BLOCKED: pre-commit gate exceeded ${MAX_SECONDS}s wall-clock limit."
    echo "Speed up slow tests before committing."
    exit 1
elif [ "$exit_code" -ne 0 ]; then
    echo ""
    echo "BLOCKED: pre-commit gate failed."
    exit 1
fi