package ru.kpfu.itis.group11402.batyrova.Task057;

import ru.kpfu.itis.group11402.batyrova.Task050.RationalFraction;

/**
 * @author Elvira Batyrova
 * 402
 * 057
 */
public class RationalComplexNumber {
    private RationalFraction a;
    private RationalFraction b;

    public RationalFraction getA() {
        return a;
    }

    public void setA(RationalFraction a) {
        this.a = a;
    }

    public RationalFraction getB() {
        return b;
    }

    public void setB(RationalFraction b) {
        this.b = b;
    }

    public RationalComplexNumber() {
        this(new RationalFraction(), new RationalFraction());
    }
    public RationalComplexNumber(RationalFraction a, RationalFraction b) {
        this.a = a;
        this.b = b;
    }
    public RationalComplexNumber add(RationalComplexNumber rcn) {
        return new RationalComplexNumber(this.a.add(rcn.getA()), this.b.add(rcn.getB()));
    }
    public RationalComplexNumber sub(RationalComplexNumber rcn) {
        return new RationalComplexNumber(this.a.sub(rcn.getA()), this.b.sub(rcn.getB()));
    }
    public RationalComplexNumber mult(RationalComplexNumber rcn) {
        return new RationalComplexNumber(this.a.mult(rcn.getA()).sub(this.b.mult(rcn.getB())), this.a.mult(rcn.getB()).add(this.b.mult(rcn.getA())));
    }
    public String toString() {
        if (a.value() != 0) {
            if (b.value() > 0) {
                return (a.toString() + " + " + b.toString() + "i");
            } else if (b.value() < 0) {
                return (a.toString() + " - " + b.abs().toString() + "i");
            } else {
                return (a.toString() + "");
            }
        } else if (b.value() != 0) {
            return (b.toString() + "i");
        } else {
            return("0");
        }
    }
}