package net.sourceforge.fenixedu.applicationTier.Servico.commons;

import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Map;

import net.sourceforge.fenixedu.applicationTier.FenixService;
import net.sourceforge.fenixedu.domain.RootDomainObject;
import net.sourceforge.fenixedu.domain.organizationalStructure.Party;
import net.sourceforge.fenixedu.domain.organizationalStructure.Unit;
import pt.utl.ist.fenix.tools.util.StringNormalizer;

public class ExternalUnitSearchService extends FenixService implements AutoCompleteSearchService {

    public Collection run(Class type, String value, int limit, Map<String, String> arguments) {
	final List<Unit> result = new ArrayList<Unit>();
	if (value != null && value.length() > 0) {
	    final String[] nameValues = StringNormalizer.normalize(value).toLowerCase().split("\\p{Space}+");

	    for (final Party party : RootDomainObject.getInstance().getExternalInstitutionUnit().getSubUnits()) {
		if (result.size() >= limit) {
		    break;
		}
		if (!party.isPerson()) {
		    final Unit unit = (Unit) party;
		    if (areNamesPresent(unit.getName(), nameValues)) {
			result.add(unit);
		    }
		}
	    }
	    Collections.sort(result, Unit.COMPARATOR_BY_NAME_AND_ID);
	}
	return result;
    }

    private boolean areNamesPresent(String name, String[] searchNameParts) {
	String nameNormalized = StringNormalizer.normalize(name).toLowerCase();
	for (int i = 0; i < searchNameParts.length; i++) {
	    String namePart = searchNameParts[i];
	    if (!nameNormalized.contains(namePart)) {
		return false;
	    }
	}
	return true;
    }
}