/*
 * Created on Apr 27, 2005
 *
 */
package net.sourceforge.fenixedu.domain;

import java.util.HashSet;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import net.sourceforge.fenixedu.domain.exceptions.DomainException;
import net.sourceforge.fenixedu.domain.organizationalStructure.Unit;
import pt.ist.fenixWebFramework.services.Service;

/**
 * @author Ricardo Rodrigues
 * 
 */

public class NonAffiliatedTeacher extends NonAffiliatedTeacher_Base {

    public NonAffiliatedTeacher() {
	super();
	setRootDomainObject(RootDomainObject.getInstance());
    }

    public NonAffiliatedTeacher(final String name, final Unit institution) {
	this();
	setName(name);
	setInstitutionUnit(institution);
    }

    public static Set<NonAffiliatedTeacher> findNonAffiliatedTeacherByName(final String name) {
	Pattern pattern = Pattern.compile(name.toLowerCase());
	final Set<NonAffiliatedTeacher> nonAffiliatedTeachers = new HashSet<NonAffiliatedTeacher>();
	for (final NonAffiliatedTeacher nonAffiliatedTeacher : RootDomainObject.getInstance().getNonAffiliatedTeachersSet()) {
	    Matcher matcher = pattern.matcher(nonAffiliatedTeacher.getName().toLowerCase());
	    if (matcher.find()) {
		nonAffiliatedTeachers.add(nonAffiliatedTeacher);
	    }
	}
	return nonAffiliatedTeachers;
    }

    @Service
    public static void associateToInstitutionAndExecutionCourse(final String nonAffiliatedTeacherName, final Unit institution,
	    final ExecutionCourse executionCourse) {

	NonAffiliatedTeacher nonAffiliatedTeacher = institution.findNonAffiliatedTeacherByName(nonAffiliatedTeacherName);
	if (nonAffiliatedTeacher == null) {
	    nonAffiliatedTeacher = new NonAffiliatedTeacher(nonAffiliatedTeacherName, institution);
	}

	if (nonAffiliatedTeacher.getExecutionCourses().contains(executionCourse)) {
	    throw new DomainException("error.invalid.executionCourse");
	} else {
	    nonAffiliatedTeacher.addExecutionCourses(executionCourse);
	}

    }

    @Service
    public void removeExecutionCourse(final ExecutionCourse executionCourse) {
	getExecutionCourses().remove(executionCourse);
    }

    public void delete() {

	if (hasAnyAssociatedInquiriesTeachers()) {
	    throw new DomainException("error.NonAffiliatedTeacher.hasAnyAssociatedInquiriesTeachers");
	}

	removeRootDomainObject();
	removeInstitutionUnit();
	getExecutionCourses().clear();

	super.deleteDomainObject();
    }
}