<?php

namespace App\Infrastructure;

use Doctrine\DBAL\Configuration;
use Doctrine\DBAL\Connection;
use Doctrine\DBAL\DriverManager;
use Doctrine\DBAL\Tools\DsnParser;

final class ConnectionFactory
{
    public static function create(string $url, ?QueryCounter $counter = null): Connection
    {
        $params = (new DsnParser(['sqlite' => 'pdo_sqlite', 'mysql' => 'pdo_mysql']))->parse($url);
        $configuration = null;
        if (null !== $counter) {
            // Counting queries is a measuring instrument, not a feature: it is wired up outside
            // the production environment, where the browser checks read the number.
            $configuration = new Configuration();
            $configuration->setMiddlewares([$counter]);
        }
        $connection = DriverManager::getConnection($params, $configuration);
        if ('pdo_sqlite' === $params['driver']) {
            // SQLite's built-in LOWER only handles ASCII: searching for "über" must also find
            // "Über uns", just as on MySQL. No database rewrite or search-specific schema needed.
            $connection->getNativeConnection()->sqliteCreateFunction('lower', static fn (?string $value): ?string => null === $value ? null : mb_strtolower($value, 'UTF-8'), 1, \PDO::SQLITE_DETERMINISTIC);
            $connection->executeStatement('PRAGMA foreign_keys = ON');
            $connection->executeStatement('PRAGMA busy_timeout = 5000');
        }

        return $connection;
    }
}