#!/usr/bin/env bash
set -euo pipefail
if [ ! -d "backend" ]; then echo "backend directory missing" >&2; exit 1; fi
if [ -n "${PYTHON_BIN:-}" ]; then
  PYTHON_BIN="${PYTHON_BIN}"
elif command -v python3 >/dev/null 2>&1 && python3 -c "import importlib; import app.main" >/dev/null 2>&1; then
  PYTHON_BIN="python3"
elif command -v python.exe >/dev/null 2>&1 && python.exe -c "import importlib; import app.main" >/dev/null 2>&1; then
  PYTHON_BIN="python.exe"
elif command -v python >/dev/null 2>&1 && python -c "import importlib; import app.main" >/dev/null 2>&1; then
  PYTHON_BIN="python"
else
  echo "No python interpreter available for backend import smoke" >&2
  exit 1
fi
if [ -f "backend/app/main.py" ]; then
  (cd backend && "$PYTHON_BIN" -c "import importlib; import app.main; importlib.import_module('app.main'); print('Backend import OK')")
else
  echo "backend/app/main.py not implemented yet; smoke skipped for documentation-only milestone"
fi