<?php
include 'auth.php';

function bg_scan_events_payload() {
    $res = bg_inotify_monitor_events(220);
    $status = bg_inotify_monitor_status();
    return [
        'ok' => ((int)($res['code'] ?? 1) === 0),
        'events' => (string)($res['output'] ?? ''),
        'status' => (string)($status['output'] ?? ''),
        'code' => (int)($res['code'] ?? 0),
        'time' => date('c'),
    ];
}

if (isset($_GET['stream']) && $_GET['stream'] === '1') {
    @set_time_limit(0);
    @ini_set('output_buffering', 'off');
    @ini_set('zlib.output_compression', '0');
    header('Content-Type: text/event-stream; charset=utf-8');
    header('Cache-Control: no-cache, no-transform');
    header('X-Accel-Buffering: no');

    $lastHash = '';
    for ($i = 0; $i < 90; $i++) {
        if (connection_aborted()) break;
        $payload = bg_scan_events_payload();
        $json = json_encode($payload, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);
        $hash = sha1($json ?: '');
        if ($hash !== $lastHash || $i % 15 === 0) {
            echo "event: scan\n";
            echo 'data: ' . $json . "\n\n";
            $lastHash = $hash;
            @ob_flush(); @flush();
        } else {
            echo ": heartbeat\n\n";
            @ob_flush(); @flush();
        }
        sleep(1);
    }
    exit;
}

header('Content-Type: application/json; charset=utf-8');
echo json_encode(bg_scan_events_payload(), JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES);