package edu.wit.comp1050.chunga.ica2.part2;

public class MyInteger {
	// Private utility class constraints
	private final static int DEFAULT_VALUE = 0;
	private final static String DEFAULT_FORMAT = "%,d";

	// Instance variable
	private static int value;

	// Constructor to set default value
	public MyInteger() {
		this(DEFAULT_VALUE);
		value = DEFAULT_VALUE;
	}

	// Constructor to set specified value
	public MyInteger(int initialValue) {
		value = initialValue;
	}

	// Getter method
	public static int valueOf() {
		return value;
	}

	// Setter method
	public static int setValue(int initialValue) {
		return value = initialValue;
	}

	// Boolean check method for value
	public boolean equals(int otherValue) {
		return value == otherValue;
	}

	// String method
	@Override
	public String toString() {
		return toString(value);
	}

	// String format method
	private static String toString(int valueToFormat) {
		return String.format(DEFAULT_FORMAT, valueToFormat);
	}

	// Boolean check for if value is zero
	public boolean isZero() {
		return isZero(value);
	}

	// Boolean check for if testing value is zero
	public static boolean isZero(int valueToTest) {
		return valueToTest == 0;
	}

	// Boolean check for if value is even
	public boolean isEven() {
		return isEven(value);
	}

	// Boolean check for if testing value is even
	public static boolean isEven(int valueToTest) {
		return (valueToTest % 2) == 0;
	}

	// Boolean check for if value is odd
	public boolean isOdd() {
		return isOdd(value);
	}

	// Boolean check for if testing value is odd
	public static boolean isOdd(int valueToTest) {
		return (valueToTest % 2) != 0;
	}

	// Increases value by 1
	public int increment() {
		return ++value;
	}

	// Decreases value by 1
	public int decrement() {
		return --value;
	}

	// Method using + operator for value
	public int add(int adder) {
		value = value + adder;
		return value;
	}

	// Method using - operator for value
	public int subtract(int subtractor) {
		value = value - subtractor;
		return value;
	}

	// Method using * operator for value
	public int multiplyBy(int multiplier) {
		value = value * multiplier;
		return value;
	}

	// Method using / operator for value
	public int divideBy(int divisor) {
		value = value / divisor;
		return value;
	}

	// Method using % operator for value
	public int remainder(int remainder) {
		value = value % remainder;
		return value;
	}

	@Override
	public boolean equals(Object otherObject) {
		MyInteger otherMyInteger;
		if (otherObject instanceof MyInteger){
			otherMyInteger = (MyInteger) otherObject;
		} else {
			}
		return false;
	}

	public int add(MyInteger adder) {

		return 0;
	}

	public int subtract(MyInteger subtractor) {

		return 0;
	}

	public int multiplyBy(MyInteger multiplier) {

		return 0;
	}

	public int divideBy(MyInteger divisor) {

		return 0;
	}

	public boolean isPrime() {
		return isPrime(value);
	}

	public static boolean isPrime(MyInteger valueToTest) {
		if (valueToTest == 1 || valueToTest == 2) {
			return true;
		} else {
			for (int i = 2; i< valueToTest; i++) {
				if (i % valueToTest == 0) {
					return false;
				}
			}
		}
		return true;
	}

	public static int parseInt(char[] parser) {

		return 0;
	}

	// Main method to test all methods
	public static void main(String[] args) {
		MyInteger value = new MyInteger();
		System.out.println("The default value is: " + value);
		System.out.println("Is value equal to 0? " + value.isZero());
		System.out.println("Is value even? " + value.isEven());
		System.out.println("Is value odd? " + value.isOdd());
		System.out.println("Is value equal to 5? " + value.equals(5));
		System.out.println("");

		MyInteger integer = new MyInteger(5);
		System.out.println("The specified integer is: " + integer);
		System.out.println("With specified integer, value has been changed to: " + valueOf());
		System.out.println("Value has been changed to " + setValue(1000));
		System.out.println("Value has incremented, the new value is: " + value.increment());
		System.out.println("Value has decremented, the new value is: " + value.decrement());
		System.out.println("Value in string format with grouping separators is: " + value.toString());
		System.out.println("");

		System.out.println("5000 in string form with grouping seperators: " + MyInteger.toString(5000));
		System.out.println("");

		System.out.println("Is 400 equal to 0? " + isZero(400));
		System.out.println("Is 400 even? " + isEven(400));
		System.out.println("Is 400 odd? " + isOdd(400));
		System.out.println("");

		System.out.println("Value is currently: " + value);
		System.out.println("Value added by 5 equals: " + value.add(5));
		System.out.println("Value subtracted by 4 equals: " + value.subtract(4));
		System.out.println("Value multipled by 2 equals: " + value.multiplyBy(2));
		System.out.println("Value divided by 2 equals: " + value.divideBy(2));
		System.out.println("The remainder of " + value + " divided by 2 equals: " + value.remainder(2));
		System.out.println("The new value is now: " + value);
	}
}