<?php
header('Content-Type: application/json');
header('Cache-Control: no-cache, no-store');
require_once dirname(__DIR__) . '/include/monitor.php';

$cacheFile = '/tmp/vv_cache_monitor_remote.json';
$cacheTTL  = 3600;

if (!isset($_GET['live']) && file_exists($cacheFile) && (time() - filemtime($cacheFile)) < $cacheTTL) {
    echo file_get_contents($cacheFile);
    exit;
}

$out = json_encode([
    'remote_hosts' => vv_remote_hosts_stats(),
    'ts'           => time(),
]);

file_put_contents($cacheFile, $out);
echo $out;