web/app/model/Cardreader.php

<?php

use App\Core\Database;
use App\Teamtable\Team;
use App\Teamtable\TeamMapper;
use App\Timetable\Time;
use App\Timetable\TimeMapper;

class Cardreader
{
    public PDO $dbh;

    public TeamMapper $teamMapper;

    public TimeMapper $timeMapper;

    public function __construct(Database $database)
    {
        $this->dbh = $database->conn;
        $this->teamMapper = new TeamMapper($this->dbh);
        $this->timeMapper = new TimeMapper($this->dbh);
    }

    /**
     * Returns TRUE if team exists, FALSE if not
     */
    public function receive(string $cardnumber, int $timeout): bool 
    {
        $team = $this->teamMapper->getByCardnumber($cardnumber);
        if ($team)
        {
            // team exists, insert into time table
            $sth = $this->dbh->prepare('INSERT INTO tidtabell (LagID) VALUES (?)');
            $sth->execute([$team->id]);
            return TRUE;
        }
        // team does not exist, lets create it
        $team = new Team;
        $team->cardnumber = $cardnumber;
        $this->teamMapper->create($team);
        return FALSE;
    }
}