UniversityMember.java

import enumeration.Gender;

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

public abstract class UniversityMember {
    // final for the ID because it will remain the same for the whole duration of studying or being employed
    // PK & FK
    private final int id;
    private Gender gender;
    private String firstName;
    private String lastName;
    private String placeOfResidence;
    private final String birthPlace;
    private String officialEmail;
    private String privateEmail;
    private List<Course> personalCourses = new ArrayList<>();


    public UniversityMember(int id, Gender gender, String firstName, String lastName, String placeOfResidence, String birthPlace,
                            String officialEmail, String privateEmail, List<Course> personalCourses) {
        this.id = id;
        this.gender = gender;
        this.firstName = firstName;
        this.lastName = lastName;
        this.placeOfResidence = placeOfResidence;
        this.birthPlace = birthPlace;
        this.officialEmail = officialEmail;
        this.privateEmail = privateEmail;
        this.personalCourses = personalCourses;
    }

    public Course getCourseForId(int id) {
        for (Course course : personalCourses) {
            if (course.getId() == id) {
                return course;
            }
        }
        return null;
    }

    public List<Course> getPersonalCourses() {
        return personalCourses;
    }

    public boolean signUpForCourse(Course course) {
        if (isSignedUpForCourse(course)) {
            return false;
        } else {
            return personalCourses.add(course);
        }

    }

    public boolean leaveCourse(Course course) {
        if (isSignedUpForCourse(course)) {
            return personalCourses.remove(course);
        } else {
            return false;
        }

    }

    public boolean isSignedUpForCourse(Course course) {
        return personalCourses.contains(course);
    }

}