/*
 * Created on Mar 24, 2005
 */
package net.sourceforge.fenixedu.domain.assiduousness;

import java.util.ArrayList;
import java.util.List;

import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.domain.assiduousness.util.AttributeType;
import net.sourceforge.fenixedu.domain.assiduousness.util.TimeInterval;
import net.sourceforge.fenixedu.domain.assiduousness.util.TimePoint;

import org.joda.time.Duration;
import org.joda.time.LocalTime;

/**
 * @author velouria
 * 
 */
public class Meal extends Meal_Base {

    public Meal(LocalTime mealBeginTime, LocalTime mealEndTime, Duration mandatoryMealDiscount, Duration minimumMealBreakInterval) {
	super();
	setRootDomainObject(RootDomainObject.getInstance());
	setBeginMealBreak(mealBeginTime);
	setEndMealBreak(mealEndTime);
	setMinimumMealBreakInterval(minimumMealBreakInterval);
	setMandatoryMealDiscount(mandatoryMealDiscount);
    }

    public TimeInterval getMealBreak() {
	return new TimeInterval(getBeginMealBreak(), getEndMealBreak(), false);
    }

    public boolean definedMealBreak() {
	return (getMealBreak() != null);
    }

    public Duration getMealBreakDuration() {
	return getMealBreak().getDuration();
    }

    public AttributeType getAttributeType() {
	return AttributeType.MEAL;
    }

    // Returns a list with the start and end points of the Meal break (if
    // defined)
    public List<TimePoint> toTimePoints() {
	List<TimePoint> pointList = new ArrayList<TimePoint>();
	if (definedMealBreak()) {
	    pointList.add(getMealBreak().startPointToTimePoint(AttributeType.MEAL));
	    pointList.add(getMealBreak().endPointToTimePoint(AttributeType.MEAL));
	}
	return pointList;
    }

    public Duration calculateMealDiscount(Duration lunchBreak) {
	if (lunchBreak.isShorterThan(getMandatoryMealDiscount()) || lunchBreak.isEqual(getMandatoryMealDiscount())) {
	    return getMandatoryMealDiscount().minus(lunchBreak);
	} else {
	    return Duration.ZERO;
	}
    }

    // Returns the lunch end if the employee had lunch in the beginning of its
    // meal break
    public LocalTime getLunchEnd() {
	return getBeginMealBreak().plus(getMandatoryMealDiscount().toPeriod());
    }

    public Duration countMealBreakTime(Clocking clockingIn, Clocking clockingOut) {
	return TimeInterval.countDurationFromClockings(clockingIn, clockingOut, this.getMealBreak());
    }

    public LocalTime getEndOfMealBreakMinusMealDiscount() {
	return getMealBreak().getEndTime().toDateTimeToday().minus(getMandatoryMealDiscount()).toLocalTime();
    }

    public TimeInterval getEndOfMealBreakMinusDiscountInterval() {
	return new TimeInterval(getEndOfMealBreakMinusMealDiscount(), getEndMealBreak(), false);
    }

    public void delete() {
	if (canBeDeleted()) {
	    removeRootDomainObject();
	    deleteDomainObject();
	}
    }

    public boolean canBeDeleted() {
	return !hasAnyWorkScheduleTypes();
    }

    public boolean equivalent(LocalTime beginMeal, LocalTime endMeal, Duration minium, Duration maxium) {
	if ((getBeginMealBreak().equals(beginMeal) && getEndMealBreak().equals(endMeal))
		&& ((getMinimumMealBreakInterval() == null && minium == null) || (getMinimumMealBreakInterval() != null
			&& minium != null && getMinimumMealBreakInterval().equals(minium)))
		&& ((getMandatoryMealDiscount() == null && maxium == null) || (getMandatoryMealDiscount() != null
			&& maxium != null && getMandatoryMealDiscount().equals(maxium)))) {
	    return true;
	}
	return false;
    }
}