<?php
declare(strict_types=1);

namespace FastRoute\Dispatcher;

use FastRoute\Dispatcher\Result\Matched;

use function count;

/** @final */
class GroupCountBased extends RegexBasedAbstract
{
    /** @inheritDoc */
    protected function dispatchVariableRoute(array $routeData, string $uri): ?Matched
    {
        foreach ($routeData as $data) {
            if ($this->matchRoute($data['regex'], $uri, $matches) !== 1) {
                continue;
            }

            [$handler, $varNames, $extraParameters] = $data['routeMap'][count($matches)];

            $vars = [];
            $i = 0;
            foreach ($varNames as $varName) {
                $vars[$varName] = $matches[++$i];
            }

            $result = new Matched();
            $result->handler = $handler;
            $result->variables = $vars;
            $result->extraParameters = $extraParameters;

            return $result;
        }

        return null;
    }
}