تذكيرات المواعيد عبر واتساب

// Schedule automated appointment reminder
async function scheduleAppointmentReminder(appointment) {
  // Calculate reminder time (24 hours before)
  const reminderTime = new Date(appointment.dateTime);
  reminderTime.setHours(reminderTime.getHours() - 24);

  const message = `📅 Reminder: You have an appointment tomorrow!

📍 Location: ${appointment.clinic}
🕐 Time: ${appointment.time}
👨‍⚕️ Doctor: Dr. ${appointment.doctor}

Reply CONFIRM to confirm or RESCHEDULE to change.

– ${CLINIC_NAME}`;

  // Schedule via Nabda OTP
  const response = await fetch("https://api.nabdaotp.com/api/v1/messages/send", {
    method: "POST",
    headers: {
      "Content-Type": "application/json",
      "Authorization": `Bearer ${instanceToken}`
    },
    body: JSON.stringify({
      phone: appointment.patientPhone,  // e.g. "+9647701234567"
      message: message
    })
  });

  if (response.ok) {
    await logReminder(appointment.id, "sent", reminderTime);
  }

  return response.ok;
}

// Trigger 24h before appointment
scheduleReminder(appointment, reminderTime);