init

internal/core/service/auth.go

@@ -0,0 +1,72 @@
+package service
+
+import (
+	"context"
+
+	"github.com/aykhans/oh-my-chat/internal/core/domain"
+	"github.com/aykhans/oh-my-chat/internal/core/port"
+	"github.com/aykhans/oh-my-chat/internal/core/utils"
+)
+
+type AuthService struct {
+	userRepository port.UserRepository
+	tokenService   port.TokenService
+}
+
+// NewAuthService creates a new auth service instance
+func NewAuthService(userRepository port.UserRepository, tokenService port.TokenService) *AuthService {
+	return &AuthService{
+		userRepository,
+		tokenService,
+	}
+}
+
+func (authService *AuthService) LoginByEmail(
+	ctx context.Context,
+	email, password string,
+) (string, error) {
+	user, err := authService.userRepository.GetUserByEmail(ctx, email)
+	if err != nil {
+		if err == domain.ErrDataNotFound {
+			return "", domain.ErrInvalidEmailCredentials
+		}
+		return "", domain.ErrInternal
+	}
+
+	err = utils.ComparePassword(password, user.Password)
+	if err != nil {
+		return "", domain.ErrInvalidEmailCredentials
+	}
+
+	accessToken, err := authService.tokenService.CreateToken(user)
+	if err != nil {
+		return "", domain.ErrTokenCreation
+	}
+
+	return accessToken, nil
+}
+
+func (authService *AuthService) LoginByUsername(
+	ctx context.Context,
+	username, password string,
+) (string, error) {
+	user, err := authService.userRepository.GetUserByEmail(ctx, username)
+	if err != nil {
+		if err == domain.ErrDataNotFound {
+			return "", domain.ErrInvalidUsernameCredentials
+		}
+		return "", domain.ErrInternal
+	}
+
+	err = utils.ComparePassword(password, user.Password)
+	if err != nil {
+		return "", domain.ErrInvalidUsernameCredentials
+	}
+
+	accessToken, err := authService.tokenService.CreateToken(user)
+	if err != nil {
+		return "", domain.ErrTokenCreation
+	}
+
+	return accessToken, nil
+}