<?php
// blade-status-public.php · read-only public endpoint for WTP footer widget (doctrine 14)
header('Content-Type: application/json');
header('Access-Control-Allow-Origin: *');
$hb_path = '/var/www/html/api/blade-tasks/heartbeat.json';
$online = false; $ago = null; $tasks = null;
if (file_exists($hb_path)) {
    $hb = @json_decode(@file_get_contents($hb_path), true);
    if ($hb && !empty($hb['ts'])) {
        $ago = time() - strtotime($hb['ts']);
        $online = $ago < 180; // 3 min threshold
    }
}
// Task counts (read-only)
$td = '/var/www/html/api/blade-tasks';
$p=0; $d=0; $f=0;
if (is_dir($td)) {
    foreach (glob($td.'/task_*.json') ?: [] as $t) {
        $j = @json_decode(@file_get_contents($t), true);
        if (!$j) continue;
        $s = $j['status'] ?? '';
        if ($s==='pending') $p++;
        elseif ($s==='done') $d++;
        elseif ($s==='failed') $f++;
    }
}
echo json_encode([
    'online' => $online,
    'ago_sec' => $ago,
    'label' => $online ? 'live' : ($ago ? 'intermittent' : 'offline'),
    'class' => $online ? 'ok' : ($ago && $ago < 600 ? 'warn' : 'danger'),
    'tasks' => ['pending' => $p, 'done' => $d, 'failed' => $f]
]);