package net.sourceforge.fenixedu.domain.accounting.serviceAgreementTemplates;

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

import net.sourceforge.fenixedu.domain.DegreeCurricularPlan;
import net.sourceforge.fenixedu.domain.ExecutionYear;
import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.domain.StudentCurricularPlan;
import net.sourceforge.fenixedu.domain.accounting.PaymentPlan;
import net.sourceforge.fenixedu.domain.accounting.ServiceAgreementTemplate;
import net.sourceforge.fenixedu.domain.accounting.ServiceAgreementTemplatePaymentPlan;
import net.sourceforge.fenixedu.domain.accounting.paymentPlans.FullGratuityPaymentPlan;
import net.sourceforge.fenixedu.domain.accounting.paymentPlans.GratuityPaymentPlan;
import net.sourceforge.fenixedu.domain.accounting.paymentPlans.GratuityPaymentPlanForStudentsEnroledOnlyInSecondSemester;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;

import com.linkare.commons.metainfo.Linkare;

public class DegreeCurricularPlanServiceAgreementTemplate extends DegreeCurricularPlanServiceAgreementTemplate_Base {

    private DegreeCurricularPlanServiceAgreementTemplate() {
	super();
    }

    public DegreeCurricularPlanServiceAgreementTemplate(DegreeCurricularPlan degreeCurricularPlan) {
	this();
	init(degreeCurricularPlan);
    }

    private void checkParameters(DegreeCurricularPlan degreeCurricularPlan) {
	if (degreeCurricularPlan == null) {
	    throw new DomainException(
		    "error.accounting.agreement.serviceAgreementTemplates.DegreeCurricularPlanServiceAgreementTemplate.degreeCurricularPlan.cannot.be.null");
	}

    }

    protected void init(DegreeCurricularPlan degreeCurricularPlan) {
	checkParameters(degreeCurricularPlan);
	checkRulesToCreate(degreeCurricularPlan);
	super.setDegreeCurricularPlan(degreeCurricularPlan);
    }

    private void checkRulesToCreate(DegreeCurricularPlan degreeCurricularPlan) {
	if (readByDegreeCurricularPlan(degreeCurricularPlan) != null) {
	    throw new DomainException(
		    "error.net.sourceforge.fenixedu.domain.accounting.serviceAgreementTemplates.DegreeCurricularPlanServiceAgreementTemplate.degree.curricular.plan.already.has.template.defined");
	}

    }

    @Override
    public void setDegreeCurricularPlan(DegreeCurricularPlan degreeCurricularPlan) {
	throw new DomainException(
		"error.accounting.agreement.serviceAgreementTemplates.DegreeCurricularPlanServiceAgreementTemplate.cannot.modify.degreeCurricularPlan");
    }

    public GratuityPaymentPlan getGratuityPaymentPlanFor(final StudentCurricularPlan studentCurricularPlan,
	    final ExecutionYear executionYear) {
	GratuityPaymentPlan result = null;
	for (final PaymentPlan paymentPlan : getPaymentPlansSet()) {
	    if (paymentPlan instanceof GratuityPaymentPlan
		    && ((GratuityPaymentPlan) paymentPlan).isAppliableFor(studentCurricularPlan, executionYear)) {
		if (result == null) {
		    result = (GratuityPaymentPlan) paymentPlan;
		} else {
		    throw new DomainException(
			    "error.net.sourceforge.fenixedu.domain.accounting.serviceAgreementTemplates.DegreeCurricularPlanServiceAgreementTemplate.more.than.one.gratuity.payment.plan.is.appliable");
		}

	    }
	}

	return result == null ? getDefaultPaymentPlan(executionYear) : result;
    }

    public List<GratuityPaymentPlan> getGratuityPaymentPlans() {
	final List<GratuityPaymentPlan> result = new ArrayList<GratuityPaymentPlan>();
	for (final PaymentPlan paymentPlan : getPaymentPlansSet()) {
	    if (paymentPlan instanceof GratuityPaymentPlan) {
		result.add((GratuityPaymentPlan) paymentPlan);
	    }
	}

	return result;
    }

    @Override
    public GratuityPaymentPlan getDefaultPaymentPlan(ExecutionYear executionYear) {
	return (GratuityPaymentPlan) super.getDefaultPaymentPlan(executionYear);
    }

    public boolean hasFullGratuityPaymentPlanFor(final ExecutionYear executionYear) {
	for (final PaymentPlan paymentPlan : getPaymentPlansSet()) {
	    if (paymentPlan instanceof FullGratuityPaymentPlan && paymentPlan.getExecutionYear() == executionYear) {
		return true;
	    }
	}
	return false;
    }

    @Linkare(author = "Paulo Zenida", comments = "Changed the implementation to delegate on the getter method.")
    public boolean hasGratuityPaymentPlanForStudentsEnroledOnlyInSecondSemesterBy(final ExecutionYear executionYear) {
	return getGratuityPaymentPlanForStudentsEnroledOnlyInSecondSemesterBy(executionYear) != null;
    }

    @Linkare(author = "Paulo Zenida")
    public GratuityPaymentPlanForStudentsEnroledOnlyInSecondSemester getGratuityPaymentPlanForStudentsEnroledOnlyInSecondSemesterBy(
	    final ExecutionYear executionYear) {
	for (final PaymentPlan paymentPlan : getPaymentPlansSet()) {
	    if (paymentPlan instanceof GratuityPaymentPlanForStudentsEnroledOnlyInSecondSemester
		    && paymentPlan.getExecutionYear() == executionYear) {
		return (GratuityPaymentPlanForStudentsEnroledOnlyInSecondSemester) paymentPlan;
	    }
	}
	return null;

    }

    public static DegreeCurricularPlanServiceAgreementTemplate readByDegreeCurricularPlan(
	    final DegreeCurricularPlan degreeCurricularPlan) {
	for (final ServiceAgreementTemplate serviceAgreementTemplate : RootDomainObject.getInstance()
		.getServiceAgreementTemplates()) {

	    if (serviceAgreementTemplate instanceof DegreeCurricularPlanServiceAgreementTemplate) {
		final DegreeCurricularPlanServiceAgreementTemplate degreeCurricularPlanServiceAgreementTemplate = (DegreeCurricularPlanServiceAgreementTemplate) serviceAgreementTemplate;

		if (degreeCurricularPlanServiceAgreementTemplate.getDegreeCurricularPlan() == degreeCurricularPlan) {
		    return degreeCurricularPlanServiceAgreementTemplate;
		}
	    }
	}

	return null;
    }

    public List<GratuityPaymentPlan> getGratuityPaymentPlansFor(final ExecutionYear executionYear) {
	final List<GratuityPaymentPlan> result = new ArrayList<GratuityPaymentPlan>();

	for (final ServiceAgreementTemplatePaymentPlan paymentPlan : getPaymentPlansSet()) {
	    if (paymentPlan instanceof GratuityPaymentPlan && paymentPlan.isFor(executionYear)) {
		result.add((GratuityPaymentPlan) paymentPlan);
	    }
	}

	return result;
    }

    @Linkare(author = "Paulo Zenida")
    @Override
    public final void delete() {
	super.setDegreeCurricularPlan(null);
	super.delete();
    }
}