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<?php

declare(strict_types=1);

namespace Doctrine\DBAL\Portability;

use Doctrine\DBAL\ColumnCase;
use Doctrine\DBAL\Driver as DriverInterface;
use Doctrine\DBAL\Driver\Connection as ConnectionInterface;
use Doctrine\DBAL\Driver\Middleware\AbstractDriverMiddleware;
use PDO;
use SensitiveParameter;

use const CASE_LOWER;
use const CASE_UPPER;

final class Driver extends AbstractDriverMiddleware
{
    public function __construct(
        DriverInterface $driver,
        private readonly int $mode,
        private readonly ?ColumnCase $case,
    ) {
        parent::__construct($driver);
    }

    /**
     * {@inheritDoc}
     */
    public function connect(
        #[SensitiveParameter]
        array $params,
    ): ConnectionInterface {
        $connection = parent::connect($params);

        $portability = (new OptimizeFlags())(
            $this->getDatabasePlatform($connection),
            $this->mode,
        );

        $case = null;

        if ($this->case !== null && ($portability & Connection::PORTABILITY_FIX_CASE) !== 0) {
            $nativeConnection = $connection->getNativeConnection();

            $case = match ($this->case) {
                ColumnCase::LOWER => CASE_LOWER,
                ColumnCase::UPPER => CASE_UPPER,
            };

            if ($nativeConnection instanceof PDO) {
                $portability &= ~Connection::PORTABILITY_FIX_CASE;
                $nativeConnection->setAttribute(PDO::ATTR_CASE, $case);
            }
        }

        $convertEmptyStringToNull = ($portability & Connection::PORTABILITY_EMPTY_TO_NULL) !== 0;
        $rightTrimString          = ($portability & Connection::PORTABILITY_RTRIM) !== 0;

        if (! $convertEmptyStringToNull && ! $rightTrimString && $case === null) {
            return $connection;
        }

        return new Connection(
            $connection,
            new Converter($convertEmptyStringToNull, $rightTrimString, $case),
        );
    }
}