<?php
require_once __DIR__ . '/../helpers.php';
runAuth();

try {
    $data = readJsonBody();

    $userID = (int) ($data['UserID'] ?? 0);
    $businessID = (int) ($data['BusinessID'] ?? 0);
    $servicePointID = (int) ($data['ServicePointID'] ?? 0);

    if ($userID === 0) apiAbort(['OK' => false, 'ERROR' => 'missing_UserID']);
    if ($businessID === 0) apiAbort(['OK' => false, 'ERROR' => 'missing_BusinessID']);

    $params = [$userID, $businessID];
    $spVal = $servicePointID > 0 ? '?' : 'NULL';
    if ($servicePointID > 0) $params[] = $servicePointID;

    queryTimed("
        INSERT INTO UserPresence (UserID, BusinessID, ServicePointID, LastSeenOn)
        VALUES (?, ?, $spVal, NOW())
        ON DUPLICATE KEY UPDATE
            BusinessID = VALUES(BusinessID),
            ServicePointID = VALUES(ServicePointID),
            LastSeenOn = NOW()
    ", $params);

    jsonResponse(['OK' => true]);

} catch (Exception $e) {
    jsonResponse(['OK' => false, 'ERROR' => 'server_error', 'MESSAGE' => $e->getMessage()]);
}