FamilyMember

FamilyMember.java

public class FamilyMember {
private String relation;
private int age;
private List<HealthEvent> healthEvents = new ArrayList<>();

// Constructor with validation
public FamilyMember(String relation, int age) {
    if (relation == null || relation.trim().isEmpty()) {
        throw new IllegalArgumentException("Relation required");
    }
    if (age < 0 || age > 120) {
        throw new IllegalArgumentException("Age must be between 0 and 120");
    }
    this.relation = relation.trim();
    this.age = age;
}

// Adds an initial HealthEvent automatically.
public FamilyMember(String relation, int age, String healthCondition) {
    this(relation, age);
    if (healthCondition != null && !healthCondition.trim().isEmpty()) {
        // Use a simple guessed ageAtDiagnosis (you can change it when you know the real
        // age)
        addHealthEvent(
                new HealthEvent(healthCondition.trim(), Math.max(0, Math.min(age, 50)), "Initial condition"));
    }
}

public String getRelation() {
    return relation;
}

public int getAge() {
    return age;
}

public void addHealthEvent(HealthEvent event) {
    if (event != null) {
        healthEvents.add(event);
    }
}

public List<HealthEvent> getHealthEvents() {
    return Collections.unmodifiableList(healthEvents);
}

public String getHealthCondition() {
    return healthEvents.isEmpty() ? "Healthy" : healthEvents.get(0).getCondition();
}

@Override
public String toString() {
    return relation + " (Age: " + age + ", Events: " + healthEvents.size() + ")";
  }
}