package com.plannaplan.models;

import com.plannaplan.entities.Assignment;
import com.plannaplan.entities.Exchange;

/**
 * Match of users Exchange's to be performed
 */
public class MatchData {
	private Exchange exchangeOne;
	private Exchange exchangeTwo;

	/**
	 * create MatchData
	 * 
	 * @param exchangeOne first Exchange of found match
	 * @param exchangeTwo second Exchange of found match
	 */
	public MatchData(Exchange exchangeOne, Exchange exchangeTwo) {
		this.exchangeOne = exchangeOne;
		this.exchangeTwo = exchangeTwo;
	}

	/**
	 * @return first Exchange
	 */
	public Exchange getExchangeOne() {
		return this.exchangeOne;
	}

	/**
	 * @return second Exchange
	 */
	public Exchange getExchangeTwo() {
		return this.exchangeTwo;
	}

	/**
	 * @return second Exchange's owned assignmetn
	 */
	public Assignment getAssignmentTwo() {
		return this.exchangeTwo.getOwnedAssignment();
	}

	/**
	 * @return first Exchange's owned assignmetn
	 */
	public Assignment getAssignmentOne() {
		return this.exchangeOne.getOwnedAssignment();
	}

	@Override
	public int hashCode() {
		return this.getAssignmentOne().hashCode() + this.getAssignmentTwo().hashCode();
	}

	@Override
	public boolean equals(Object o) {

		if (o == this) {
			return true;
		}

		if (!(o instanceof MatchData)) {
			return false;
		}

		MatchData c = (MatchData) o;

		return (this.getAssignmentOne().equals(c.getAssignmentOne())
				&& this.getAssignmentTwo().equals(c.getAssignmentTwo()))
				|| (this.getAssignmentOne().equals(c.getAssignmentTwo())
						&& this.getAssignmentTwo().equals(c.getAssignmentOne()));
	}

	/**
	 * comparator for MatchData. It compare it by sum of both exchange's times. For
	 * example MatchData with Exchanges 11:00 and 12:00 will be less than with
	 * Exchanges 12:00 and 12:00
	 * 
	 * @param m1 MatchData instance to compare to
	 * @return int less than 0 if m1 is "less than", 0 if it's equal and more than 0
	 *         otherwise
	 */
	public int compare(MatchData m1) {
		return Long.compare(m1.getExchangesMsValue(), this.getExchangesMsValue());
	}

	/**
	 * @return sum of both exchanges java.sql.Timestanp::getTime"
	 */
	public long getExchangesMsValue() {
		return this.exchangeOne.getDataExchange().getTime() + this.exchangeTwo.getDataExchange().getTime();
	}
}