feat: create specific price system and adapt product queries

app/service/specificPriceService/specificPriceService.go

@@ -0,0 +1,136 @@
+package specificPriceService
+
+import (
+	"context"
+
+	"git.ma-al.com/goc_daniel/b2b/app/model"
+	"git.ma-al.com/goc_daniel/b2b/app/repos/specificPriceRepo"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
+)
+
+type SpecificPriceService struct {
+	specificPriceRepo specificPriceRepo.UISpecificPriceRepo
+}
+
+func New() *SpecificPriceService {
+	return &SpecificPriceService{
+		specificPriceRepo: specificPriceRepo.New(),
+	}
+}
+
+func (s *SpecificPriceService) Create(ctx context.Context, pr *model.SpecificPrice) (*model.SpecificPrice, error) {
+	if err := s.validateRequest(pr); err != nil {
+		return nil, err
+	}
+
+	if pr.Scope == "shop" && len(pr.ProductIDs) == 0 && len(pr.CategoryIDs) == 0 && len(pr.ProductAttributeIDs) == 0 && len(pr.CountryIDs) == 0 && len(pr.CustomerIDs) == 0 {
+		// pr.Scope = "global"
+	} else {
+		// pr.Scope = "scoped"
+	}
+
+	if err := s.specificPriceRepo.Create(ctx, pr); err != nil {
+		return nil, err
+	}
+
+	return pr, nil
+}
+
+func (s *SpecificPriceService) Update(ctx context.Context, id uint64, pr *model.SpecificPrice) (*model.SpecificPrice, error) {
+	existing, err := s.specificPriceRepo.GetByID(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	if existing == nil {
+		return nil, responseErrors.ErrSpecificPriceNotFound
+	}
+
+	if err := s.validateUpdateRequest(pr); err != nil {
+		return nil, err
+	}
+
+	pr.ID = id
+
+	if pr.Scope == "shop" && len(pr.ProductIDs) == 0 && len(pr.CategoryIDs) == 0 && len(pr.ProductAttributeIDs) == 0 && len(pr.CountryIDs) == 0 && len(pr.CustomerIDs) == 0 {
+		// pr.Scope = "global"
+	} else {
+		// pr.Scope = "scoped"
+	}
+
+	if err := s.specificPriceRepo.Update(ctx, pr); err != nil {
+		return nil, err
+	}
+
+	return pr, nil
+}
+
+func (s *SpecificPriceService) GetByID(ctx context.Context, id uint64) (*model.SpecificPrice, error) {
+	pr, err := s.specificPriceRepo.GetByID(ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	if pr == nil {
+		return nil, responseErrors.ErrSpecificPriceNotFound
+	}
+	return pr, nil
+}
+
+func (s *SpecificPriceService) List(ctx context.Context) ([]*model.SpecificPrice, error) {
+	return s.specificPriceRepo.List(ctx)
+}
+
+func (s *SpecificPriceService) SetActive(ctx context.Context, id uint64, active bool) error {
+	pr, err := s.specificPriceRepo.GetByID(ctx, id)
+	if err != nil {
+		return err
+	}
+	if pr == nil {
+		return responseErrors.ErrSpecificPriceNotFound
+	}
+
+	return s.specificPriceRepo.SetActive(ctx, id, active)
+}
+
+func (s *SpecificPriceService) Delete(ctx context.Context, id uint64) error {
+	pr, err := s.specificPriceRepo.GetByID(ctx, id)
+	if err != nil {
+		return err
+	}
+	if pr == nil {
+		return responseErrors.ErrSpecificPriceNotFound
+	}
+
+	return s.specificPriceRepo.Delete(ctx, id)
+}
+
+func (s *SpecificPriceService) validateRequest(pr *model.SpecificPrice) error {
+	if pr.ReductionType != "amount" && pr.ReductionType != "percentage" {
+		return responseErrors.ErrInvalidReductionType
+	}
+
+	if pr.ReductionType == "percentage" && pr.PercentageReduction == nil {
+		return responseErrors.ErrPercentageRequired
+	}
+
+	if pr.ReductionType == "amount" && pr.Price == nil {
+		return responseErrors.ErrPriceRequired
+	}
+
+	return nil
+}
+
+func (s *SpecificPriceService) validateUpdateRequest(pr *model.SpecificPrice) error {
+	if pr.ReductionType != "" && pr.ReductionType != "amount" && pr.ReductionType != "percentage" {
+		return responseErrors.ErrInvalidReductionType
+	}
+
+	if pr.ReductionType == "percentage" && pr.PercentageReduction == nil {
+		return responseErrors.ErrPercentageRequired
+	}
+
+	if pr.ReductionType == "amount" && pr.Price == nil {
+		return responseErrors.ErrPriceRequired
+	}
+
+	return nil
+}