<?php

declare(strict_types=1);

namespace KupShop\GTMBundle\ServerSideGTMEvent;

use Symfony\Component\HttpFoundation\Request;

trait AnalyticsSessionIDsTrait
{
    protected function getBrowserGASessionId(Request $request, string $number = '')
    {
        $dbcfg = \Settings::getDefault();
        $measurement_id = $dbcfg->analytics['google_tag_manager']['ga4_measurement_id'.$number] ?? '';
        $cookies = $request->cookies->all();
        // Cookie name example: '_ga_1YS1VWHG3V'.
        $cookie_name = '_ga_'.str_replace('G-', '', $measurement_id);
        if (isset($cookies[$cookie_name])) {
            // Cookie value example: 'GS2.1.s1746623129$o109$g1$t1746623938$j0$l0$h0'.
            // Cookie value example: 'GS1.1.1659710029.4.1.1659710504.0'.
            // Session Id:                  ^^^^^^^^^^.
            if (preg_match('/^GS\d+\.\d+\.?s?(\d+)/', $cookies[$cookie_name], $matches)) {
                return $matches[1];
            }
        }

        return '';
    }

    protected function getGA3SessionId(): string
    {
        return preg_replace("/^.+\.(.+?\..+?)$/", '\\1', $_COOKIE['_ga'] ?? '');
    }

    protected function getBrowserFBPixelSessionId(?Request $request)
    {
        $cookies = $request?->cookies->all();
        if (isset($cookies['_fbp'])) {
            return $cookies['_fbp'];
        }

        return '';
    }
}