<?php

declare(strict_types=1);

namespace App\BusProNet\Transport;

use App\Service\RequestIdGenerator;
use Symfony\Component\HttpFoundation\RequestStack;

/**
 * Ids for BPN requests: the id of the current HTTP request, or a fresh one on the CLI, with a
 * running number, so the log entries and dumps of one page load can be found together.
 */
class RequestIdSequence
{
    private int $counter = 0;

    public function __construct(
        private readonly RequestStack $requestStack,
        private readonly RequestIdGenerator $requestIdGenerator,
    ) {
    }

    public function next(): string
    {
        $baseId = $this->requestStack->getMainRequest()?->attributes->get('request_id')
            ?? $this->requestIdGenerator->generateBaseId();

        return $baseId.'_'.++$this->counter;
    }
}