FakerQuestionSource.java

/**
 * PART D: Question Sourcing Integration
 * Concrete QuestionSource - procedurally generates mock question content
 * at runtime via the QuestionFaker context.
 */
public class FakerQuestionSource implements QuestionSource {

    private final String questionType;

    /**
     * @param questionType The type of question to generate: MCQ, True/False, Essay, Programming.
     */
    public FakerQuestionSource(String questionType) {
        this.questionType = questionType;
    }

    @Override
    public Question getQuestion() {
        return switch (questionType.toLowerCase()) {
            case "mcq"          -> QuestionFaker.fakeMCQ();
            case "true/false"   -> QuestionFaker.fakeTrueFalse();
            case "essay"        -> QuestionFaker.fakeEssay();
            case "programming"  -> QuestionFaker.fakeProgramming();
            default -> throw new IllegalArgumentException(
                    "Unknown question type for Faker: " + questionType);
        };
    }
}