package com.ybw.mathapp.entity;

import java.util.List;

/**
 * 选择题对象，包含题干、选项和正确答案索引。
 *
 * @author 你的名字
 * @since 2025
 */
public class QuestionWithOptions {
  private String questionText; // 题干
  private List<String> options; // 选项列表
  private int correctAnswerIndex; // 正确答案的索引 (0-based)

  public QuestionWithOptions(String questionText, List<String> options, int correctAnswerIndex) {
    this.questionText = questionText;
    this.options = options;
    this.correctAnswerIndex = correctAnswerIndex;
  }

  public String getQuestionText() {
    return questionText;
  }

  public void setQuestionText(String questionText) {
    this.questionText = questionText;
  }

  public List<String> getOptions() {
    return options;
  }

  public void setOptions(List<String> options) {
    this.options = options;
  }

  public int getCorrectAnswerIndex() {
    return correctAnswerIndex;
  }

  public void setCorrectAnswerIndex(int correctAnswerIndex) {
    this.correctAnswerIndex = correctAnswerIndex;
  }

  @Override
  public String toString() {
    StringBuilder sb = new StringBuilder();
    sb.append("Question: ").append(questionText).append("\n");
    for (int i = 0; i < options.size(); i++) {
      sb.append("Option ").append((char)('A' + i)).append(": ").append(options.get(i)).append("\n");
    }
    sb.append("Correct Answer: ").append((char)('A' + correctAnswerIndex));
    return sb.toString();
  }
}