:hammer: Remove all Magic Numbers · FagnerMartinsBrack/jack-the-moneylender@f30fe0e

const interestToPayFor = (loanAmount) => {

const END_OF_FIRST_RANGE = Money('$2000.00');

const END_OF_SECOND_RANGE = Money('$5000.00');

const CENTS_FOR_FIRST_RANGE = Money('$0.00');

const CENTS_FOR_SECOND_RANGE = Money('$0.09');

const CENTS_FOR_THIRD_RANGE = Money('$0.14');

if (loanAmount.greaterThan(END_OF_FIRST_RANGE) && loanAmount.lessThan(Money('$5001.00'))) {

const dollarsAboveThreshold = loanAmount.minus(END_OF_FIRST_RANGE);

const interestAmount = CENTS_FOR_SECOND_RANGE.multipliedBy(dollarsAboveThreshold);

return interestAmount;

}

if (loanAmount.greaterThan(Money('$5000.00'))) {

if (loanAmount.greaterThan(END_OF_SECOND_RANGE)) {

let interestAmount = Money('$0.00');

const dollarsAboveThresholdForSecondRange = loanAmount.minus(END_OF_FIRST_RANGE);

const interestAmountForSecondRange = CENTS_FOR_SECOND_RANGE.multipliedBy(dollarsAboveThresholdForSecondRange);

interestAmount = interestAmount.plus(interestAmountForSecondRange);

const dollarsAboveThresholdForThirdRange = loanAmount.minus(Money('$5000.00'));

const interestAmountForThirdRange = Money('$0.14').minus(Money('$0.09')).multipliedBy(dollarsAboveThresholdForThirdRange);

const dollarsAboveThresholdForThirdRange = loanAmount.minus(END_OF_SECOND_RANGE);

const interestAmountForThirdRange = CENTS_FOR_THIRD_RANGE.minus(CENTS_FOR_SECOND_RANGE).multipliedBy(dollarsAboveThresholdForThirdRange);

interestAmount = interestAmount.plus(interestAmountForThirdRange);

return interestAmount;