backend moved to separate directory

backend: deleted the old structure

go-backend/internal/services/membership_service.go

@@ -0,0 +1,100 @@
+package services
+
+import (
+	"time"
+
+	"GoMembership/internal/models"
+	"GoMembership/internal/repositories"
+	"GoMembership/pkg/errors"
+)
+
+type MembershipServiceInterface interface {
+	RegisterMembership(membership *models.Membership) (uint, error)
+	FindMembershipByUserID(userID uint) (*models.Membership, error)
+	RegisterSubscription(subscription *models.SubscriptionModel) (uint, error)
+	UpdateSubscription(subscription *models.SubscriptionModel) (*models.SubscriptionModel, error)
+	DeleteSubscription(id *uint, name *string) error
+	GetSubscriptionModelNames() ([]string, error)
+	GetSubscriptionByName(modelname *string) (*models.SubscriptionModel, error)
+	GetSubscriptions(where map[string]interface{}) (*[]models.SubscriptionModel, error)
+}
+
+type MembershipService struct {
+	Repo             repositories.MembershipRepositoryInterface
+	SubscriptionRepo repositories.SubscriptionModelsRepositoryInterface
+}
+
+func (service *MembershipService) RegisterMembership(membership *models.Membership) (uint, error) {
+	membership.StartDate = time.Now()
+	return service.Repo.CreateMembership(membership)
+}
+
+func (service *MembershipService) UpdateSubscription(subscription *models.SubscriptionModel) (*models.SubscriptionModel, error) {
+
+	existingSubscription, err := repositories.GetSubscriptionByName(&subscription.Name)
+	if err != nil {
+		return nil, err
+	}
+	if existingSubscription == nil {
+		return nil, errors.ErrSubscriptionNotFound
+	}
+	if existingSubscription.MonthlyFee != subscription.MonthlyFee ||
+		existingSubscription.HourlyRate != subscription.HourlyRate ||
+		existingSubscription.Conditions != subscription.Conditions ||
+		existingSubscription.IncludedPerYear != subscription.IncludedPerYear ||
+		existingSubscription.IncludedPerMonth != subscription.IncludedPerMonth {
+		return nil, errors.ErrInvalidSubscriptionData
+	}
+	subscription.ID = existingSubscription.ID
+	return service.SubscriptionRepo.UpdateSubscription(subscription)
+
+}
+
+func (service *MembershipService) DeleteSubscription(id *uint, name *string) error {
+	if *name == "" {
+		return errors.ErrNoData
+	}
+	exists, err := repositories.GetSubscriptionByName(name)
+	if err != nil {
+		return err
+	}
+	if exists == nil {
+		return errors.ErrNotFound
+	}
+	if *id != exists.ID {
+		return errors.ErrInvalidSubscriptionData
+	}
+	usersInSubscription, err := repositories.GetUsersBySubscription(*id)
+
+	if err != nil {
+		return err
+	}
+	if len(*usersInSubscription) > 0 {
+		return errors.ErrSubscriptionInUse
+	}
+	return service.SubscriptionRepo.DeleteSubscription(id)
+}
+
+func (service *MembershipService) FindMembershipByUserID(userID uint) (*models.Membership, error) {
+	return service.Repo.FindMembershipByUserID(userID)
+}
+
+// Membership_Subscriptions
+func (service *MembershipService) RegisterSubscription(subscription *models.SubscriptionModel) (uint, error) {
+	return service.SubscriptionRepo.CreateSubscriptionModel(subscription)
+}
+
+func (service *MembershipService) GetSubscriptionModelNames() ([]string, error) {
+	return service.SubscriptionRepo.GetSubscriptionModelNames()
+}
+
+func (service *MembershipService) GetSubscriptionByName(modelname *string) (*models.SubscriptionModel, error) {
+	return repositories.GetSubscriptionByName(modelname)
+}
+
+func (service *MembershipService) GetSubscriptions(where map[string]interface{}) (*[]models.SubscriptionModel, error) {
+	if where == nil {
+		where = map[string]interface{}{}
+	}
+	return service.SubscriptionRepo.GetSubscriptions(where)
+}