init

serve/internal/service/user_service.go

@@ -0,0 +1,80 @@
+package service
+
+import (
+    "errors"
+    "github.com/Nanqipro/YunQue-Tech-Projects/ai_english_learning/serve/internal/model"
+    "github.com/Nanqipro/YunQue-Tech-Projects/ai_english_learning/serve/internal/database"
+)
+
+type UserService struct {
+	userRepo *database.UserRepository
+}
+
+func NewUserService(userRepo *database.UserRepository) *UserService {
+	return &UserService{userRepo: userRepo}
+}
+
+// 用户注册
+func (s *UserService) Register(username, email, password string) (string, error) {
+	// 检查用户是否已存在
+	if _, err := s.userRepo.GetByEmail(email); err == nil {
+		return "", errors.New("用户已存在")
+	}
+	
+	// 创建新用户
+	user := &model.User{
+		Username: username,
+		Email:    email,
+		Password: password, // 实际应用中需要加密
+	}
+	
+	userID, err := s.userRepo.Create(user)
+	if err != nil {
+		return "", err
+	}
+	
+	return userID, nil
+}
+
+// 用户登录
+func (s *UserService) Login(email, password string) (string, string, error) {
+	user, err := s.userRepo.GetByEmail(email)
+	if err != nil {
+		return "", "", errors.New("用户不存在")
+	}
+	
+	// 实际应用中需要验证密码
+	if user.Password != password {
+		return "", "", errors.New("密码错误")
+	}
+	
+	// 生成 token (实际应用中应使用 JWT 等)
+	token := "fake-token-" + user.ID
+	
+	return token, user.ID, nil
+}
+
+// 获取用户信息
+func (s *UserService) GetProfile(userID string) (*model.User, error) {
+	user, err := s.userRepo.GetByID(userID)
+	if err != nil {
+		return nil, errors.New("用户不存在")
+	}
+	
+	return user, nil
+}
+
+// 更新用户信息
+func (s *UserService) UpdateProfile(userID, username, avatar string) error {
+	user, err := s.userRepo.GetByID(userID)
+	if err != nil {
+		return errors.New("用户不存在")
+	}
+	
+	user.Username = username
+	if avatar != "" {
+		user.Avatar = avatar
+	}
+	
+	return s.userRepo.Update(user)
+}