const correctAnswers: Record<number, string> = {
  1: 'B',
  2: 'A',
  3: 'B',
  4: 'A',
  5: 'B',
  6: 'B',
  7: 'B',
};

export function calculateCRTResults(answers: string[]) {
  const items = answers.map((answer, index) => {
    const questionId = index + 1;
    return {
      questionId,
      selected: answer,
      correct: correctAnswers[questionId],
      isCorrect: answer === correctAnswers[questionId],
    };
  });

  const score = items.filter((item) => item.isCorrect).length;

  return {
    score,
    total: Object.keys(correctAnswers).length,
    items,
  };
}
