#!/bin/bash
set -e

cd /home/def/otb_billing/backend || exit 1

GOOD_BAK="app.py.retry-email.20260327-023404.bak"

echo "===== restoring known-good app.py ====="
cp "$GOOD_BAK" app.py

echo
echo "===== compile check ====="
python3 -m py_compile app.py
echo "PY_COMPILE_OK"

echo
echo "===== restart service ====="
sudo systemctl restart otb_billing

echo
echo "===== service status ====="
sudo systemctl status otb_billing --no-pager -l

echo
echo "===== last 20 journal lines ====="
sudo journalctl -u otb_billing.service -n 20 --no-pager