<?php
declare(strict_types=1);

require_once __DIR__ . '/lending_app.php';

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

try {
    lending_ensure_schema();
    $statement = db()->query('SELECT 1 AS healthy');
    $healthy = (int) ($statement ? $statement->fetchColumn() : 0) === 1;

    http_response_code($healthy ? 200 : 500);
    echo json_encode([
        'status' => $healthy ? 'ok' : 'error',
        'database' => $healthy ? 'ok' : 'error',
        'checked_at' => gmdate('c'),
    ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
} catch (Throwable $exception) {
    http_response_code(500);
    echo json_encode([
        'status' => 'error',
        'database' => 'error',
        'checked_at' => gmdate('c'),
    ], JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT);
}