<?php
declare(strict_types=1);
require __DIR__ . "/db.php";

$rows = $pdo->query("
    SELECT uid, entradas, saidas, online, blocked,
           TIMESTAMPDIFF(SECOND, last_seen, NOW()) AS ago
    FROM contadores
    ORDER BY online DESC, uid ASC
")->fetchAll();

// Totais
$sumEntradas = 0;
$sumSaidas = 0;
$onlineCount = 0;
$offlineCount = 0;

foreach ($rows as $r) {
    $sumEntradas += (int)$r['entradas'];
    $sumSaidas   += (int)$r['saidas'];
    if ($r['online'] == 1) $onlineCount++;
    else $offlineCount++;
}
header("Cache-Control: no-store, no-cache, must-revalidate, max-age=0");
header("Pragma: no-cache");
header("Expires: 0");

echo json_encode([
    "rows" => $rows,
    "online" => $onlineCount,
    "offline" => $offlineCount,
    "entradas" => $sumEntradas,
    "saidas" => $sumSaidas,
]);