package net.sourceforge.fenixedu.domain.precedences;

import net.sourceforge.fenixedu.domain.CurricularCourse;
import net.sourceforge.fenixedu.domain.curriculum.CurricularCourseEnrollmentType;

/**
 * @author David Santos in Jun 9, 2004
 */

public class RestrictionNotEnrolledInCurricularCourse extends RestrictionNotEnrolledInCurricularCourse_Base {
    public RestrictionNotEnrolledInCurricularCourse() {
	super();
    }

    public RestrictionNotEnrolledInCurricularCourse(Integer number, Precedence precedence,
	    CurricularCourse precedentCurricularCourse) {
	super();

	setPrecedence(precedence);
	setPrecedentCurricularCourse(precedentCurricularCourse);
    }

    public CurricularCourseEnrollmentType evaluate(PrecedenceContext precedenceContext) {
	CurricularCourse curricularCourse = this.getPrecedentCurricularCourse();

	if (precedenceContext.getStudentCurricularPlan().isCurricularCourseEnrolledInExecutionPeriod(curricularCourse,
		precedenceContext.getExecutionPeriod())) {
	    return CurricularCourseEnrollmentType.NOT_ALLOWED;
	} else if (precedenceContext.getStudentCurricularPlan().isCurricularCourseEnrolledInExecutionPeriod(curricularCourse,
		precedenceContext.getExecutionPeriod().getPreviousExecutionPeriod())) {
	    return CurricularCourseEnrollmentType.TEMPORARY;
	}

	return CurricularCourseEnrollmentType.DEFINITIVE;
    }
}