How to Build a Ap Calc Calculator

function predictAPCalcScore(mcCorrect, frScores, variant = 'AB') {
  const mcScore = Math.min(mcCorrect * 1.2, 54);
  const frScore = frScores.reduce((sum, s) => sum + Math.min(s, 9), 0);
  const composite = Math.round(mcScore + frScore);

  const cutScores = variant === 'BC'
    ? { 5: 62, 4: 52, 3: 39, 2: 27 }
    : { 5: 68, 4: 52, 3: 39, 2: 27 };

  let apScore = 1;
  for (const [score, min] of Object.entries(cutScores).sort((a, b) => b[1] - a[1])) {
    if (composite >= min) { apScore = parseInt(score); break; }
  }

  return {
    composite, maxComposite: 108,
    breakdown: { mc: Math.round(mcScore * 10) / 10, fr: frScore },
    apScore, variant
  };
  }