package net.sourceforge.fenixedu.domain.accessControl;

import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;

import net.sourceforge.fenixedu.domain.Person;
import net.sourceforge.fenixedu.domain.accessControl.groups.language.Argument;
import net.sourceforge.fenixedu.domain.accessControl.groups.language.GroupBuilder;
import net.sourceforge.fenixedu.domain.accessControl.groups.language.exceptions.VariableNotDefinedException;
import net.sourceforge.fenixedu.domain.accessControl.groups.language.operators.IdOperator;
import net.sourceforge.fenixedu.domain.vigilancy.Vigilancy;

public class VigilancyGroup extends DomainBackedGroup<Vigilancy> {

    public VigilancyGroup(Vigilancy vigilancy) {
	super(vigilancy);
    }

    private static final long serialVersionUID = 1L;

    @Override
    public Set<Person> getElements() {
	Set<Person> persons = new HashSet<Person>();
	Vigilancy vigilancy = getObject();
	persons.addAll(vigilancy.getTeachers());
	persons.add(vigilancy.getVigilantWrapper().getPerson());
	return persons;
    }

    @Override
    public String getName() {
	Iterator<Person> iter = getElements().iterator();
	Person person;
	String name = new String();
	while (iter.hasNext()) {
	    person = iter.next();
	    name += person.getName();
	    if (iter.hasNext())
		name += "\n";
	}
	return name;
    }

    @Override
    protected Argument[] getExpressionArguments() {
	return new Argument[] { new IdOperator(getObject()) };
    }

    public static class Builder implements GroupBuilder {

	public Group build(Object[] arguments) {
	    Vigilancy vigilancy = (Vigilancy) arguments[0];
	    if (vigilancy == null) {
		throw new VariableNotDefinedException("vigilancy");
	    }
	    return new VigilancyGroup(vigilancy);

	}

	public int getMaxArguments() {
	    return 1;
	}

	public int getMinArguments() {
	    return 1;
	}

    }
}