feat: registrationBegin method without email;

fix: missing sqlc query parameter name;
feat: util for generating security codes;
feat: enums package

backend/internal/services/auth.go

@@ -5,6 +5,7 @@ import (
 	errs "easywish/internal/errors"
 	"easywish/internal/models"
 	"easywish/internal/utils"
+	"easywish/internal/utils/enums"
 
 	"go.uber.org/zap"
 )
@@ -27,18 +28,50 @@ func NewAuthService(_log *zap.Logger, _dbctx database.DbContext) AuthService {
 
 func (a *authServiceImpl) RegistrationBegin(request models.RegistrationBeginRequest) (bool, error) {
 
+	var user database.User
+	var generatedCode string
+
 	helper, db, _ := database.NewDbHelperTransaction(a.dbctx)
+  defer helper.Rollback()
 
-	user, err := db.TXQueries.CreateUser(db.CTX, request.Username) // TODO: validation
+	var err error
 
-  if err != nil {
+	if user, err = db.TXQueries.CreateUser(db.CTX, request.Username); err != nil { // TODO: validation
 		a.log.Error("Failed to add user to database", zap.Error(err))
 		return false, errs.ErrServerError
 	}
+
+	a.log.Info("Registraion of a new user", zap.String("username", user.Username), zap.Int64("id", user.ID))
+
+	if _, err = db.TXQueries.CreateLoginInformation(db.CTX, database.CreateLoginInformationParams{
+		UserID: user.ID,
+		Email: request.Email,
+		Password: request.Password, // Hashed in database
+	}); err != nil {
+		a.log.Error("Failed to add login information for user to database", zap.Error(err))
+		return false, errs.ErrServerError
+	}
+
+	if generatedCode, err = utils.GenerateSecure6DigitNumber(); err != nil {
+		a.log.Error("Failed to generate a registration code", zap.Error(err))
+		return false, errs.ErrServerError
+	}
+
+	if _, err = db.TXQueries.CreateConfirmationCode(db.CTX, database.CreateConfirmationCodeParams{
+     UserID: user.ID,
+		 CodeType: int32(enums.RegistrationCodeType),
+		 Code: generatedCode, // Hashed in database
+	}); err != nil {
+		a.log.Error("Failed to add registration code to database", zap.Error(err))
+		return false, errs.ErrServerError
+	}
+
 	a.log.Info("Registered a new user", zap.String("username", user.Username))
 
 	helper.Commit()
 
+	a.log.Debug("Declated registration code for a new user", zap.String("username", user.Username), zap.String("code", generatedCode))
+
 	// TODO: Send verification email
 
 	return true, nil