rename long name to short name

main_dc/api_bb/internal/service/auth_service.go

@@ -0,0 +1,122 @@
+// service/auth_service.go
+package service
+
+import (
+	"errors"
+
+	"api_bb/internal/models"
+	"api_bb/internal/repository"
+	"api_bb/pkg/logger"
+
+	"go.uber.org/zap"
+	"golang.org/x/crypto/bcrypt"
+)
+
+type AuthService interface {
+	Register(user *models.User) error
+	Login(email, password string) (*models.User, string, error)
+}
+
+type authService struct {
+	userRepo   repository.UserRepository
+	jwtService JWTService
+	logger     logger.LoggerInterface
+}
+
+func NewAuthService(userRepo repository.UserRepository, jwtService JWTService, log logger.LoggerInterface) AuthService {
+	// Создаем логгер с контекстом для сервиса
+	serviceLogger := log.With(zap.String("service", "auth"))
+
+	return &authService{
+		userRepo:   userRepo,
+		jwtService: jwtService,
+		logger:     serviceLogger,
+	}
+}
+
+func (s *authService) Register(user *models.User) error {
+	s.logger.Info("Registering new user",
+		zap.String("email", user.Email),
+	)
+
+	existingUser, err := s.userRepo.FindByEmail(user.Email)
+	if err == nil && existingUser != nil {
+		s.logger.Warn("Registration failed - email already exists",
+			zap.String("email", user.Email),
+		)
+		return errors.New("user with this email already exists")
+	}
+
+	err = s.userRepo.Create(user)
+	if err != nil {
+		s.logger.Error("Failed to create user in database",
+			zap.String("email", user.Email),
+			zap.Error(err),
+		)
+		return err
+	}
+	
+
+	s.logger.Info("User registered successfully",
+		zap.Uint("user_id", user.ID),
+		zap.String("email", user.Email),
+	)
+
+
+	return nil
+}
+
+func (s *authService) Login(email, password string) (*models.User, string, error) {
+	s.logger.Info("Login attempt",
+		zap.String("email", email),
+		zap.Int("password_length", len(password)),
+	)
+
+	user, err := s.userRepo.FindByEmail(email)
+	if err != nil {
+		s.logger.Warn("Login failed - user not found",
+			zap.String("email", email),
+			zap.Error(err),
+		)
+		return nil, "", errors.New("invalid email")
+	}
+
+	s.logger.Debug("User found for login",
+		zap.Uint("user_id", user.ID),
+		zap.String("stored_hash_prefix", user.Password[:min(10, len(user.Password))]),
+	)
+
+	// Проверяем пароль
+	err = bcrypt.CompareHashAndPassword([]byte(user.Password), []byte(password))
+	if err != nil {
+		s.logger.Warn("Login failed - invalid password",
+			zap.Uint("user_id", user.ID),
+			zap.String("email", email),
+			zap.Error(err),
+		)
+		return nil, "", errors.New("invalid password")
+	}
+
+	s.logger.Info("Login successful",
+		zap.Uint("user_id", user.ID),
+		zap.String("email", email),
+	)
+
+	token, err := s.jwtService.GenerateToken(user.ID, user.Email)
+	if err != nil {
+		s.logger.Error("Failed to generate JWT token",
+			zap.Uint("user_id", user.ID),
+			zap.Error(err),
+		)
+		return nil, "", err
+	}
+
+	return user, token, nil
+}
+
+func min(a, b int) int {
+	if a < b {
+		return a
+	}
+	return b
+}