Insurance-Coding-Challenge/src/main/java/com/pfefferminzia/petinsurance/tariffs/AgeTariff.java

package com.pfefferminzia.petinsurance.tariffs;

import java.math.BigDecimal;

public enum AgeTariff {
    UP_TO_TWO(2, new BigDecimal("0.2")), UP_TO_FIVE(5, new BigDecimal("0.25")), UP_TO_SEVEN(7,
            new BigDecimal("0.28")), OVER_SEVEN(Integer.MAX_VALUE, new BigDecimal("0.3"));

    private final int maxAge;

    private final BigDecimal factor;

    private AgeTariff(int maxAge, BigDecimal factor) {
        this.maxAge = maxAge;
        this.factor = factor;
    }

    public static BigDecimal getFactorForAge(int age) {
        for (AgeTariff rate : values()) {
            if (age <= rate.maxAge) {
                return rate.factor;
            }
        }
        throw new AssertionError("Unexpected age: " + age);
    }

}