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const handlePaymentAlert = (sendableDomainArray) => {
  const messages = {
    5: 'Reminder: (5) Day left till platform shutdown',
    3: 'Reminder: (3) Day left till platform shutdown',
    1: 'Reminder: (1) Day left till platform shutdown',
    '-1': 'Reminder: (1) Days ago platform shut down',
    '-2': 'Reminder: (2) Days ago platform shut down'
  };

  return sendableDomainArray
    .filter(item => messages[calculateDaysLeft(item.domain, item.endDate)])
    .map(item => ({
      'domain': item.domain,
      'message': messages[calculateDaysLeft(item.domain, item.endDate)]
    }));
};

const handlePaymentDates = async () => {
  const domains = await controllers.readDomainsFile(filePath);
  const sendableDomains = domains
    .filter(item => item.paidAt && item.paidAt.trim() !== "")
    .map(item => ({ 'domain': item.domain, 'endDate': item.paidAt.split('|')[1] }));

  const sendableItems = handlePaymentAlert(sendableDomains);
  console.log(sendableItems);
};

// Assuming that you have the calculateDaysLeft function implemented