public class School {

    private ArrayList<Teacher> teachers;
    private ArrayList<SchoolClass> classes;

    private IPersistenceManager manager;

    @Inject
    public School(IPersistenceManager iPersistenceManager) {
        this.manager = iPersistenceManager;
        teachers = manager.loadTeachers();
        classes = manager.loadClasses();
    }

    public void addTeacher(Teacher teacher) {
        if(!teachers.contains(teacher)) {
            teachers.add(teacher);
            manager.saveTeachers(teachers);
            Logger.getInstance().log("Added " + teacher.toString());
        }
    }

    public Collection<Person> findPerson(String name, String surname) {
        Collection<Person> foundPersons = findPerson(name, surname,
            PersonType.Student);
        foundPersons.addAll(findPerson(name, surname, PersonType.Teacher));
        return foundPersons;
    }

    public Collection<Person> findPerson(String name, String surname,
                                         PersonType personType) {
        ArrayList<Person> foundTeachers = new ArrayList<Person>();
        if(personType == PersonType.Teacher) {
            for(Teacher teacher : teachers) {
                if(teacher.meetsSearchCriteria(name, surname)) {
                    foundTeachers.add(teacher);
                }
            }
        } else if(personType == PersonType.Student) {
            for(SchoolClass schoolClass : classes) {
                for(Student student : schoolClass.getStudents()) {
                    if(student.meetsSearchCriteria(name, surname)) {
                        foundTeachers.add(student);
                    }
                }
            }
        }
        return foundTeachers;
    }

    public void addClass(SchoolClass newClass) {
        if(!classes.contains(newClass)) {
            classes.add(newClass);
            manager.saveClasses(classes);
            Logger.getInstance().log("Added " + newClass.toString());
        }
    }

    public Collection<SchoolClass> findClass(String name, String profile) {
        ArrayList<SchoolClass> foundClasses = new ArrayList<SchoolClass>();
        for(SchoolClass schoolClass : classes) {
            if(schoolClass.meetSearchCriteria(name, profile)) {
                foundClasses.add(schoolClass);
            }
        }
        return foundClasses;
    }

    public int getTermCount(Person person) {
        return person.getSchedule().size();
    }

    public void setFilenames(String teacherStorageFilename, String classStorageFilename) {
        manager.setTeachersStorageFilename(teacherStorageFilename);
        manager.setClassStorageFilename(classStorageFilename);
        teachers = manager.loadTeachers();
        classes = manager.loadClasses();
    }

}