How to Build a Air Force Calculator

function calculateAirForcePT(age, gender, pushups, situps, runSeconds) {
  const bracket = getAgeBracket(age);
  const runPts = scoreRun(runSeconds, bracket, gender);   // 0-60
  const pushPts = scorePushups(pushups, bracket, gender); // 0-20
  const sitPts = scoreSitups(situps, bracket, gender);    // 0-20
  const composite = runPts + pushPts + sitPts;

  const passedMins = runPts >= getRunMin(bracket, gender)
    && pushPts >= getComponentMin('pushup', bracket, gender)
    && sitPts >= getComponentMin('situp', bracket, gender);

  return {
    composite,
    breakdown: { run: runPts, pushups: pushPts, situps: sitPts },
    passed: composite >= 75 && passedMins,
    rating: composite >= 90 ? 'Excellent' : composite >= 75 ? 'Satisfactory' : 'Unsatisfactory'
  };
  }