import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;

public class Test extends Question {
    private final ArrayList<Character> labels = new ArrayList<>();
    private String[] options;
    private int numOfOptions;

    public Test() {
    }

    public Test(String description, String answer, String[] options) {
        super(description, answer);
        setOptions(options);
    }

    public String getOptionAt(int index) {
        return options[index];
    }

    public void setOptions(String[] options) {
        this.options = options;
        numOfOptions = options.length;
        for (int i = 0; i < numOfOptions; i++) {
            labels.add((char) (65 + i));
        }
    }

    public int getNumOfOptions() {
        return numOfOptions;
    }

    public boolean isCorrectAnswer(char label) {
        return options[label - 65].equals(getAnswer());
    }

    public void shuffleOptions() {
        Collections.shuffle(Arrays.asList(options));
    }

    @Override
    public String toString() {
        StringBuilder information = new StringBuilder();

        information.append(String.format("%s", getDescription()));
        for (int i = 0; i < numOfOptions; i++) {
            information.append(String.format("\n%s) %s", labels.get(i), options[i]));
        }

        return information.toString();
    }
}