package net.sourceforge.fenixedu.domain.accounting;

import java.util.Collections;
import java.util.List;
import java.util.Set;

import net.sourceforge.fenixedu.dataTransferObject.accounting.EntryDTO;
import net.sourceforge.fenixedu.dataTransferObject.accounting.SibsTransactionDetailDTO;
import net.sourceforge.fenixedu.domain.Employee;
import net.sourceforge.fenixedu.domain.Person;
import net.sourceforge.fenixedu.domain.User;
import net.sourceforge.fenixedu.domain.accounting.paymentCodes.AccountingEventPaymentCode;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.organizationalStructure.ResidenceManagementUnit;
import net.sourceforge.fenixedu.domain.residence.ResidenceMonth;
import net.sourceforge.fenixedu.util.Money;

import org.joda.time.DateTime;
import org.joda.time.YearMonthDay;

import pt.ist.fenixWebFramework.security.accessControl.Checked;
import pt.utl.ist.fenix.tools.resources.LabelFormatter;

public class ResidenceEvent extends ResidenceEvent_Base {

    protected ResidenceEvent() {
	super();
    }

    public ResidenceEvent(ResidenceMonth month, Person person, Money roomValue, String room) {
	init(EventType.RESIDENCE_PAYMENT, person, month, roomValue, room);
    }

    protected void init(EventType eventType, Person person, ResidenceMonth month, Money roomValue, String room) {
	super.init(eventType, person);
	if (month == null) {
	    throw new DomainException("error.accounting.events.ResidenceEvent.ResidenceMonth.cannot.be.null");
	}
	setResidenceMonth(month);
	setRoomValue(roomValue);
	setRoom(room);
    }

    @Override
    public LabelFormatter getDescription() {
	return getDescriptionForEntryType(EntryType.RESIDENCE_FEE);
    }

    @Override
    public LabelFormatter getDescriptionForEntryType(EntryType entryType) {
	final LabelFormatter labelFormatter = new LabelFormatter();

	labelFormatter.appendLabel(entryType.name(), LabelFormatter.ENUMERATION_RESOURCES);
	labelFormatter.appendLabel(" - ");
	labelFormatter.appendLabel(getResidenceMonth().getMonth().getName(), "enum");
	labelFormatter.appendLabel("-");
	labelFormatter.appendLabel(getResidenceMonth().getYear().getYear().toString());
	return labelFormatter;
    }

    @Override
    protected Account getFromAccount() {
	return getPerson().getAccountBy(AccountType.EXTERNAL);
    }

    @Override
    public PostingRule getPostingRule() {
	return getManagementUnit().getUnitServiceAgreementTemplate().findPostingRuleBy(getEventType(), getWhenOccured(), null);
    }

    @Override
    public Account getToAccount() {
	return getManagementUnit().getAccountBy(AccountType.INTERNAL);
    }

    public ResidenceManagementUnit getManagementUnit() {
	return getResidenceMonth().getManagementUnit();
    }

    public DateTime getPaymentStartDate() {
	return getResidenceMonth().getPaymentStartDate();
    }

    public DateTime getPaymentLimitDate() {
	return getResidenceMonth().getPaymentLimitDateTime();
    }

    @Override
    @Checked("EventsPredicates.MANAGER_OR_RESIDENCE_UNIT_EMPLOYEE")
    public void cancel(Employee responsibleEmployee) {
	super.cancel(responsibleEmployee);
    }

    public DateTime getPaymentDate() {
	return getNonAdjustingTransactions().isEmpty() ? null : getNonAdjustingTransactions().get(0).getTransactionDetail()
		.getWhenRegistered();
    }

    public PaymentMode getPaymentMode() {
	return getNonAdjustingTransactions().isEmpty() ? null : getNonAdjustingTransactions().get(0).getTransactionDetail()
		.getPaymentMode();
    }

    public Money getAmountToPay() {
	return calculateAmountToPay(new DateTime());
    }

    @Override
    protected List<AccountingEventPaymentCode> createPaymentCodes() {
	final EntryDTO entryDTO = calculateEntries(new DateTime()).get(0);

	return Collections.singletonList(AccountingEventPaymentCode.create(PaymentCodeType.RESIDENCE_FEE, new YearMonthDay(),
		getPaymentLimitDate().toYearMonthDay(), this, entryDTO.getAmountToPay(), entryDTO.getAmountToPay(), getPerson()));
    }

    @Override
    protected List<AccountingEventPaymentCode> updatePaymentCodes() {
	final EntryDTO entryDTO = calculateEntries(new DateTime()).get(0);
	getNonProcessedPaymentCodes().get(0).update(new YearMonthDay(), getPaymentLimitDate().toYearMonthDay(),
		entryDTO.getAmountToPay(), entryDTO.getAmountToPay());

	return getNonProcessedPaymentCodes();
    }

    @Override
    protected Set<Entry> internalProcess(User responsibleUser, AccountingEventPaymentCode paymentCode, Money amountToPay,
	    SibsTransactionDetailDTO transactionDetail) {
	return internalProcess(responsibleUser, Collections
		.singletonList(new EntryDTO(EntryType.RESIDENCE_FEE, this, amountToPay)), transactionDetail);
    }
}