<?php

declare(strict_types=1);

namespace App\Controllers;

/**
 * Health & readiness probes for load balancers / Docker.
 * GET /health — process alive. GET /ready — DB + queue reachable.
 */
final class Health extends \CodeIgniter\Controller
{
    public function index(): \CodeIgniter\HTTP\Response
    {
        return response()->setJSON([
            'status' => 'ok',
            'time'   => gmdate('c'),
        ]);
    }

    public function ready(): \CodeIgniter\HTTP\Response
    {
        $checks = [
            'database' => false,
            'storage'  => is_writable(\App\Libraries\Pipeline::storageDir()) || @mkdir(\App\Libraries\Pipeline::storageDir(), 0750, true),
            'ffmpeg'   => null,
        ];

        try {
            db_connect()->query('SELECT 1');
            $checks['database'] = true;
        } catch (\Throwable) {
        }

        $path = config('Site')->binaries['ffmpeg'];
        if ($path !== null && file_exists($path)) {
            $checks['ffmpeg'] = is_executable($path);
        }

        $ready = $checks['database'] && $checks['storage'];

        return response()->setStatusCode($ready ? 200 : 503)->setJSON([
            'status' => $ready ? 'ready' : 'not_ready',
            'checks' => array_filter($checks, static fn ($v) => $v !== null),
            'time'   => gmdate('c'),
        ]);
    }
}