train_model.php

<?php

declare(strict_types=1);

require_once __DIR__ . '/config/config.php';
require_once __DIR__ . '/app/helpers.php';
require_once __DIR__ . '/config/database.php';
require_once __DIR__ . '/app/auth.php';
require_once __DIR__ . '/train_recognizer.php';

header('Content-Type: application/json; charset=UTF-8');

try {
    $user = require_roles(['admin']);

    if (!is_post()) {
        throw new RuntimeException('Only POST requests are allowed.', 405);
    }

    if (!verify_csrf_token($_POST['csrf_token'] ?? null)) {
        throw new RuntimeException('Invalid session token. Please refresh the page.', 419);
    }

    $result = train_face_recognizer();

    http_response_code($result['success'] ? 200 : 500);
    echo json_encode($result);

} catch (Throwable $e) {
    http_response_code(500);
    echo json_encode(['success' => false, 'message' => $e->getMessage()]);
}