<?php
// Common data for selects
$all_doctors = $db->query("SELECT id, name_$lang as name FROM doctors")->fetchAll();
$all_patients = $db->query("SELECT id, name FROM patients")->fetchAll();
$all_insurance = $db->query("SELECT id, name_$lang as name FROM insurance_companies")->fetchAll();
$scheduled_appointments = $db->query("
    SELECT a.id, p.name as patient_name, a.appointment_date, a.patient_id, a.doctor_id
    FROM appointments a 
    JOIN patients p ON a.patient_id = p.id 
    WHERE a.status = 'Scheduled' 
    ORDER BY a.appointment_date ASC")->fetchAll();