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#ifndef DATA_STRUCTURES_H
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#define DATA_STRUCTURES_H
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#include <string>
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#include <vector>
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// 用户信息结构体
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struct UserInfo {
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std::string email;
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std::string password;
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bool isLoggedIn = false;
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};
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// 题目信息结构体
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struct QuestionInfo {
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int id;
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std::string content;
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std::vector<std::string> options;
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int correctAnswer; // 0-3 对应ABCD
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};
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// 测试结果结构体
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struct TestResult {
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int totalQuestions; ///< 总问题数
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int correctAnswers; ///< 正确问题数
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double score; ///< 得分
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std::string difficulty;
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};
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// 前后端通信接口
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class BackendInterface {
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public:
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/**
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* @brief 请求发送验证码
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* @param email 邮箱地址
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* @return 发送成功true
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*/
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virtual bool sendSecondCode(const std::string& email) = 0;
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/**
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* @brief 用户注册
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* @param user_name 用户名
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* @param password 密码
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* @param code 验证码
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* @return 注册成功true
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*/
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virtual bool userRegitster(const std::string& user_name, const std::string& password, const std::string& code) = 0;
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/**
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* @brief 用户登陆
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* @param user_name 用户名
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* @param password 密码
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* @return 登陆成功true
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*/
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virtual bool userLogin(const std::string& user_name, const std::string& password) = 0;
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virtual void userLogout() = 0;
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virtual bool changePassword(const std::string& oldPassword, const std::string& newPassword) = 0;
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virtual void userExit() = 0;
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/**
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* @brief 题目生成
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* @param difficulty 题目难度（小学、初中、高中）
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* @param count 题目数量
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* @return 返回生成的题目信息（采用QuestionInfor存储题目）
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*/
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virtual std::vector<QuestionInfo> generateQuestions(const std::string& difficulty, int count) = 0;
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/**
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* @brief 提交答案
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* @param userAnswers 0-3分别表示选项A-D
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* @return 返回测试结果（采用TestResult存储测试结果）
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*/
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virtual TestResult submitAnswers(const std::vector<int>& userAnswers) = 0;
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virtual ~BackendInterface() = default;
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};
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class BackendImpl : public BackendInterface {
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public:
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bool sendSecondCode(const std::string& email){ return true; };
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bool userRegitster(const std::string& user_name, const std::string& password, const std::string& code){ return true; };
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bool userLogin(const std::string& user_name, const std::string& password){ return true; };
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bool changePassword(const std::string& old_password, const std::string& new_password){ return true; };
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void userLogout(){return;};
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void userExit(){return;};
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std::vector<QuestionInfo> generateQuestions(const std::string& difficulty, int count) {
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std::vector<QuestionInfo> questions = {
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{1, "1 + 1 = ?", {"1", "2", "3", "4"}, 1},
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{2, "3 * 4 = ?", {"10", "12", "14", "16"}, 1},
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{3, "10 / 2 = ?", {"3", "4", "5", "6"}, 2},
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{4, "7 - 3 = ?", {"2", "3", "4", "5"}, 2},
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{5, "2 * 2 = ?", {"2", "3", "4", "5"}, 2},
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{6, "9 / 3 = ?", {"2", "3", "4", "5"}, 1},
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{7, "5 * 6 = ?", {"25", "30", "35", "40"}, 1},
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{8, "8 + 7 = ?", {"14", "15", "16", "17"}, 1},
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{9, "20 / 4 = ?", {"3", "4", "5", "6"}, 2},
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{10, "6 * 7 = ?", {"40", "42", "44", "46"}, 1}
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};
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return questions;
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}
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TestResult submitAnswers(const std::vector<int>& userAnswers){
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TestResult test_result = {
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10,
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8,
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80.0,
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"小学"
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};
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return test_result;
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}
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~BackendImpl() = default ;
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};
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#endif |
