package net.sourceforge.fenixedu.domain;

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

import net.sourceforge.fenixedu.dataTransferObject.person.MacAddressRegistryBean;
import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import pt.iscte.ci.metadata.ISCTE;
import pt.iscte.dsi.utils.MacAddressUtils;

@ISCTE(author = "Paulo Zenida")
public class MacAddress extends MacAddress_Base {

    private MacAddress() {
	super();
	setRootDomainObject(RootDomainObject.getInstance());
    }

    public MacAddress(final Person person, final String address) {
	this();
	super.setPerson(person);
	activate();
	setAddress(address);
    }

    public MacAddress(MacAddressRegistryBean macAddressRegistryBean) {
	this(macAddressRegistryBean.getPerson(), macAddressRegistryBean.getAddress());
	setIsActive(macAddressRegistryBean.getIsActive());
    }

    private static boolean isMacAddressUnique(final MacAddress currentObject, final String address) {
	for (final MacAddress macAddress : RootDomainObject.getInstance().getMacAddresses()) {
	    if (macAddress != currentObject && macAddress.getAddress().equals(address)) {
		return false;
	    }
	}
	return true;
    }

    public void activate() {
	if (getPerson() == null) {
	    throw new DomainException("error.cannot.set.active.without.person.associated");
	}
	for (final MacAddress macAddress : getPerson().getMacAddresses()) {
	    macAddress.setIsActive(Boolean.FALSE);
	}
	setIsActive(Boolean.TRUE);
    }

    @Override
    public void setAddress(String address) {
	if (!MacAddressUtils.isValidMacAddress(address)) {
	    throw new DomainException("error.invalid.mac.address.format");
	}
	if (!isMacAddressUnique(this, address)) {
	    throw new DomainException("error.not.unique.mac.address");
	}
	super.setAddress(address);
    }

    @Override
    public void setPerson(Person person) {
	throw new UnsupportedOperationException("error.person.cannot.be.changed");
    }

    public void edit(final MacAddressRegistryBean macAddressRegistryBean) {
	setAddress(macAddressRegistryBean.getAddress());
	setIsActive(macAddressRegistryBean.getIsActive());
    }

    public void delete() {
	super.setPerson(null);
	removeRootDomainObject();
	deleteDomainObject();
    }

    public static List<MacAddress> getAllActiveMacAddresses() {
	final List<MacAddress> result = new ArrayList<MacAddress>();
	for (final MacAddress macAddress : RootDomainObject.getInstance().getMacAddresses()) {
	    if (macAddress.getIsActive() == Boolean.TRUE) {
		result.add(macAddress);
	    }
	}
	return result;
    }

    public static MacAddress readByMacAddress(String address) {
	for (final MacAddress macAddress : RootDomainObject.getInstance().getMacAddresses()) {
	    if (macAddress.getAddress().equals(address)) {
		return macAddress;
	    }
	}
	return null;
    }
}