PropertyAggregatedResults.php

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<?php

declare(strict_types=1);

namespace ILIAS\Test\Questions\Properties;

class PropertyAggregatedResults implements Property
{
    public function __construct(
        private readonly int $question_id,
        private readonly int $number_of_answers = 0,
        private readonly float $available_points = 0.0,
        private readonly float $total_achieved_points = 0.0,
    ) {
    }

    public function getQuestionId(): int
    {
        return $this->question_id;
    }

    public function getNumberOfAnswers(): int
    {
        return $this->number_of_answers;
    }

    public function getAveragePoints(): float
    {
        if ($this->number_of_answers === 0) {
            return 0.0;
        }
        return $this->total_achieved_points / $this->number_of_answers;
    }

    public function getPercentageOfPointsAchieved(): float
    {
        if ($this->number_of_answers === 0.0
            || $this->available_points === 0.0) {
            return 0.0;
        }
        return ($this->total_achieved_points / ($this->number_of_answers * $this->available_points)) * 100;
    }
}