<?php
header('Content-Type: application/json');
require_once __DIR__ . '/../db/config.php';
session_start();

if (!isset($_SESSION['user_id'])) {
    echo json_encode([]);
    exit;
}

$query = $_GET['query'] ?? '';

if (strlen($query) < 2) {
    echo json_encode([]);
    exit;
}

try {
    $stmt = db()->prepare("SELECT id, name_en, name_ar, phone, loyalty_points FROM customers WHERE name_en LIKE ? OR name_ar LIKE ? OR phone LIKE ? LIMIT 10");
    $stmt->execute(["%$query%", "%$query%", "%$query%"]);
    $customers = $stmt->fetchAll();
    echo json_encode($customers);
} catch (Exception $e) {
    echo json_encode([]);
}