<?php

require_once "Tasks/SingleChoiceTask.php";

require_once "Tasks/OpenEndedTask.php";

require_once "Tasks/NumberConversionTask.php";

require_once "Tasks/TruthTableTask.php";

require_once "Tasks/VerilogTask.php";

class TaskFactory
{
    static function fromArray(array $a, Game|Test|null &$governor = null): Task|null
    {
        $type = $a["type"] ?? "singlechoice"; // if the type is missing, then it's a single choice task
        switch ($type) {
            case "singlechoice":
                $task = new SingleChoiceTask($a);
                break;
            case "openended":
                $task = new OpenEndedTask($a);
                break;
            case "numberconversion":
                $task = new NumberConversionTask($a);
                break;
            case "truthtable":
                $task = new TruthTableTask($a);
                break;
            case "verilog":
                $task = new VerilogTask($a);
                break;
            default:
                return null;
        }

        $task->setGovernor($governor);
        return $task;
    }

    static function constructFromCollection(array $c, Game|Test|null &$governor = null): array
    {
        $chgs = [];
        foreach ($c as $ch) {
            $chgs[] = TaskFactory::fromArray($ch, $governor);
        }
        return $chgs;
    }
}