package net.sourceforge.fenixedu.domain;

import java.util.Comparator;
import java.util.ResourceBundle;

import net.sourceforge.fenixedu.domain.curricularPeriod.CurricularPeriod;
import net.sourceforge.fenixedu.domain.degreeStructure.Context;
import net.sourceforge.fenixedu.domain.degreeStructure.CourseGroup;
import net.sourceforge.fenixedu.util.LanguageUtils;
import pt.iscte.ci.metadata.ISCTE;

@ISCTE(author = "Paulo Zenida")
public abstract class DCPTransitionPlanRuleWrapper extends DCPTransitionPlanRuleWrapper_Base {

    static private final String NAME_SEPARATOR = " > ";

    static public final Comparator<DCPTransitionPlanRuleWrapper> COMPARE_BY_FULL_PATH_AND_NAME = new Comparator<DCPTransitionPlanRuleWrapper>() {
	public int compare(DCPTransitionPlanRuleWrapper o1, DCPTransitionPlanRuleWrapper o2) {
	    return o1.getFullPathWithName().compareTo(o2.getFullPathWithName());
	}
    };

    public DCPTransitionPlanRuleWrapper() {
	super();
	setRootDomainObject(RootDomainObject.getInstance());
    }

    public String getFullPath() {
	if (!hasContext()) {
	    return ResourceBundle.getBundle("resources.DomainExceptionResources", LanguageUtils.getLocale()).getString(
		    "error.DCPTransitionPlanRuleWrapper.context.removed");
	}
	return getPathUntilCycle(getContext().getParentCourseGroup());
    }

    private String getPathUntilCycle(CourseGroup courseGroup) {
	final Context context = !courseGroup.hasAnyParentContexts() ? null : courseGroup.getParentContexts().get(0);
	return ((context == null || context.getParentCourseGroup().isCycleCourseGroup()) ? "" : getPathUntilCycle(context
		.getParentCourseGroup())
		+ NAME_SEPARATOR)
		+ courseGroup.getName();
    }

    public String getName() {
	return hasContext() ? getContext().getChildDegreeModule().getName() : null;
    }

    public String getFullPathWithName() {
	return getFullPath() + (hasContext() ? NAME_SEPARATOR + getName() : "");
    }

    public String getContextDescription() {
	if (!hasContext()) {
	    return "";
	}

	final CurricularPeriod curricularPeriod = getContext().getCurricularPeriod();
	return (curricularPeriod != null ? curricularPeriod.getFullLabel(true) : "")
		+ " (I: "
		+ getAbbreviatedDescription(getContext().getBeginExecutionPeriod())
		+ (getContext().hasEndExecutionPeriod() ? " - F: "
			+ getAbbreviatedDescription(getContext().getEndExecutionPeriod()) : "") + ")";
    }

    private String getAbbreviatedDescription(ExecutionPeriod period) {
	return String.format("%sēS %s", period.getSemester(), period.getExecutionYear().getName());
    }

    public void delete() {
	removeContext();
	removeRootDomainObject();
	deleteDomainObject();
    }

    public CourseGroup getParentCourseGroup() {
	return getContext().getParentCourseGroup();
    }

    public CurricularCourse getCurricularCourse() {
	return (getContext() != null && getContext().getChildDegreeModule().isLeaf()) ? (CurricularCourse) getContext()
		.getChildDegreeModule() : null;
    }

    public boolean hasStudentCurricularYear() {
	return getStudentCurricularYear() != null;
    }

    abstract public DCPTransitionPlanRule getDcpTransitionPlanRule();

    public DegreeCurricularPlan getOriginDcp() {
	return getDcpTransitionPlanRule().getOriginDcp();
    }

    public DegreeCurricularPlan getDestinyDcp() {
	return getDcpTransitionPlanRule().getDestinyDcp();
    }

    public String getDcpTransitionPlanName() {
	return getDcpTransitionPlanRule().getDcpTransitionPlanName();
    }
}