Merge pull request 'no-vat-customers' (#71) from no-vat-customers into main

Reviewed-on: #71

app/delivery/web/api/restricted/carts.go

@@ -29,10 +29,12 @@ func CartsHandlerRoutes(r fiber.Router) fiber.Router {
 	handler := NewCartsHandler()
 
 	r.Get("/add-new-cart", handler.AddNewCart)
+	r.Delete("/remove-cart", handler.RemoveCart)
 	r.Get("/change-cart-name", handler.ChangeCartName)
 	r.Get("/retrieve-carts-info", handler.RetrieveCartsInfo)
 	r.Get("/retrieve-cart", handler.RetrieveCart)
 	r.Get("/add-product-to-cart", handler.AddProduct)
+	r.Delete("/remove-product-from-cart", handler.RemoveProduct)
 
 	return r
 }
@@ -53,6 +55,29 @@ func (h *CartsHandler) AddNewCart(c fiber.Ctx) error {
 	return c.JSON(response.Make(&new_cart, 0, i18n.T_(c, response.Message_OK)))
 }
 
+func (h *CartsHandler) RemoveCart(c fiber.Ctx) error {
+	userID, ok := localeExtractor.GetUserID(c)
+	if !ok {
+		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
+	}
+
+	cart_id_attribute := c.Query("cart_id")
+	cart_id, err := strconv.Atoi(cart_id_attribute)
+	if err != nil {
+		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
+	}
+
+	err = h.cartsService.RemoveCart(userID, uint(cart_id))
+	if err != nil {
+		return c.Status(responseErrors.GetErrorStatus(err)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))
+	}
+
+	return c.JSON(response.Make(nullable.GetNil(""), 0, i18n.T_(c, response.Message_OK)))
+}
+
 func (h *CartsHandler) ChangeCartName(c fiber.Ctx) error {
 	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
@@ -117,6 +142,7 @@ func (h *CartsHandler) RetrieveCart(c fiber.Ctx) error {
 	return c.JSON(response.Make(cart, 0, i18n.T_(c, response.Message_OK)))
 }
 
+// adds or sets given amount of products to the cart
 func (h *CartsHandler) AddProduct(c fiber.Ctx) error {
 	userID, ok := localeExtractor.GetUserID(c)
 	if !ok {
@@ -159,7 +185,59 @@ func (h *CartsHandler) AddProduct(c fiber.Ctx) error {
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
 	}
 
-	err = h.cartsService.AddProduct(userID, uint(cart_id), uint(product_id), product_attribute_id, uint(amount))
+	set_amount_attribute := c.Query("set_amount")
+	set_amount, err := strconv.ParseBool(set_amount_attribute)
+	if err != nil {
+		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
+	}
+
+	err = h.cartsService.AddProduct(userID, uint(cart_id), uint(product_id), product_attribute_id, amount, set_amount)
+	if err != nil {
+		return c.Status(responseErrors.GetErrorStatus(err)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))
+	}
+
+	return c.JSON(response.Make(nullable.GetNil(""), 0, i18n.T_(c, response.Message_OK)))
+}
+
+// removes product from the cart.
+func (h *CartsHandler) RemoveProduct(c fiber.Ctx) error {
+	userID, ok := localeExtractor.GetUserID(c)
+	if !ok {
+		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrInvalidBody)))
+	}
+
+	cart_id_attribute := c.Query("cart_id")
+	cart_id, err := strconv.Atoi(cart_id_attribute)
+	if err != nil {
+		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
+	}
+
+	product_id_attribute := c.Query("product_id")
+	product_id, err := strconv.Atoi(product_id_attribute)
+	if err != nil {
+		return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
+	}
+
+	product_attribute_id_attribute := c.Query("product_attribute_id")
+	var product_attribute_id *uint
+	if product_attribute_id_attribute == "" {
+		product_attribute_id = nil
+	} else {
+		val, err := strconv.Atoi(product_attribute_id_attribute)
+		if err != nil {
+			return c.Status(responseErrors.GetErrorStatus(responseErrors.ErrBadAttribute)).
+				JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, responseErrors.ErrBadAttribute)))
+		}
+		uval := uint(val)
+		product_attribute_id = &uval
+	}
+
+	err = h.cartsService.RemoveProduct(userID, uint(cart_id), uint(product_id), product_attribute_id)
 	if err != nil {
 		return c.Status(responseErrors.GetErrorStatus(err)).
 			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(c, err)))

app/delivery/web/api/restricted/customer.go

@@ -32,6 +32,7 @@ func CustomerHandlerRoutes(r fiber.Router) fiber.Router {
 
 	r.Get("", handler.customerData)
 	r.Get("/list", middleware.Require(perms.UserReadAny), handler.listCustomers)
+	r.Patch("/no-vat", middleware.Require(perms.UserWriteAny), handler.setCustomerNoVatStatus)
 	return r
 }
 
@@ -100,3 +101,28 @@ var columnMappingListUsers map[string]string = map[string]string{
 	"first_name": "users.first_name",
 	"last_name":  "users.last_name",
 }
+
+func (h *customerHandler) setCustomerNoVatStatus(fc fiber.Ctx) error {
+	user, ok := localeExtractor.GetCustomer(fc)
+	if !ok || user == nil {
+		return fc.Status(responseErrors.GetErrorStatus(responseErrors.ErrInvalidBody)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(fc, responseErrors.ErrInvalidBody)))
+	}
+
+	var req struct {
+		CustomerID uint `json:"customer_id"`
+		IsNoVat    bool `json:"is_no_vat"`
+	}
+
+	if err := fc.Bind().Body(&req); err != nil {
+		return fc.Status(responseErrors.GetErrorStatus(responseErrors.ErrJSONBody)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(fc, responseErrors.ErrJSONBody)))
+	}
+
+	if err := h.service.SetCustomerNoVatStatus(req.CustomerID, req.IsNoVat); err != nil {
+		return fc.Status(responseErrors.GetErrorStatus(err)).
+			JSON(response.Make(nullable.GetNil(""), 0, responseErrors.GetErrorCode(fc, err)))
+	}
+
+	return fc.JSON(response.Make(nullable.GetNil(""), 0, i18n.T_(fc, response.Message_OK)))
+}

app/model/customer.go

@@ -35,6 +35,7 @@ type Customer struct {
 	CreatedAt                time.Time      `json:"created_at"`
 	UpdatedAt                time.Time      `json:"updated_at"`
 	DeletedAt                gorm.DeletedAt `gorm:"index" json:"-"`
+	IsNoVat                  bool           `gorm:"default:false" json:"is_no_vat"`
 }
 
 func (u *Customer) HasPermission(permission perms.Permission) bool {

app/repos/cartsRepo/cartsRepo.go

@@ -1,9 +1,13 @@
 package cartsRepo
 
 import (
+	"errors"
+
 	"git.ma-al.com/goc_daniel/b2b/app/db"
 	"git.ma-al.com/goc_daniel/b2b/app/model"
 	constdata "git.ma-al.com/goc_daniel/b2b/app/utils/const_data"
+	"git.ma-al.com/goc_daniel/b2b/app/utils/responseErrors"
+	"gorm.io/gorm"
 )
 
 type UICartsRepo interface {
@@ -15,7 +19,8 @@ type UICartsRepo interface {
 	RetrieveCartsInfo(user_id uint) ([]model.CustomerCart, error)
 	RetrieveCart(user_id uint, cart_id uint) (*model.CustomerCart, error)
 	CheckProductExists(product_id uint, product_attribute_id *uint) (bool, error)
-	AddProduct(user_id uint, cart_id uint, product_id uint, product_attribute_id *uint, amount uint) error
+	AddProduct(cart_id uint, product_id uint, product_attribute_id *uint, amount uint, set_amount bool) error
+	RemoveProduct(cart_id uint, product_id uint, product_attribute_id *uint) error
 }
 
 type CartsRepo struct{}
@@ -129,14 +134,61 @@ func (repo *CartsRepo) CheckProductExists(product_id uint, product_attribute_id
 	}
 }
 
-func (repo *CartsRepo) AddProduct(user_id uint, cart_id uint, product_id uint, product_attribute_id *uint, amount uint) error {
+func (repo *CartsRepo) AddProduct(cart_id uint, product_id uint, product_attribute_id *uint, amount uint, set_amount bool) error {
-	product := model.CartProduct{
+	var product model.CartProduct
+
+	err := db.DB.
+		Where(&model.CartProduct{
+			CartID:             cart_id,
+			ProductID:          product_id,
+			ProductAttributeID: product_attribute_id,
+		}).
+		First(&product).Error
+
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			if amount < 1 {
+				return responseErrors.ErrAmountMustBePositive
+			} else if amount > constdata.MAX_AMOUNT_OF_PRODUCT_IN_CART {
+				return responseErrors.ErrAmountMustBeReasonable
+			}
+
+			product = model.CartProduct{
 				CartID:             cart_id,
 				ProductID:          product_id,
 				ProductAttributeID: product_attribute_id,
 				Amount:             amount,
 			}
-	err := db.DB.Create(&product).Error
 
+			return db.DB.Create(&product).Error
+		}
+
+		// Some other DB error
 		return err
+	}
+
+	// Product already exists in cart
+	if set_amount {
+		product.Amount = amount
+	} else {
+		product.Amount = product.Amount + amount
+	}
+
+	if product.Amount < 1 {
+		return responseErrors.ErrAmountMustBePositive
+	} else if product.Amount > constdata.MAX_AMOUNT_OF_PRODUCT_IN_CART {
+		return responseErrors.ErrAmountMustBeReasonable
+	}
+
+	return db.DB.Save(&product).Error
+}
+
+func (repo *CartsRepo) RemoveProduct(cart_id uint, product_id uint, product_attribute_id *uint) error {
+	return db.DB.
+		Where(&model.CartProduct{
+			CartID:             cart_id,
+			ProductID:          product_id,
+			ProductAttributeID: product_attribute_id,
+		}).
+		Delete(&model.CartProduct{}).Error
 }

app/repos/customerRepo/customerRepo.go

@@ -17,6 +17,7 @@ type UICustomerRepo interface {
 	Find(langId uint, p find.Paging, filt *filters.FiltersList, search string) (*find.Found[model.UserInList], error)
 	Save(customer *model.Customer) error
 	Create(customer *model.Customer) error
+	SetCustomerNoVatStatus(customerID uint, isNoVat bool) error
 }
 
 type CustomerRepo struct{}
@@ -114,3 +115,7 @@ func (repo *CustomerRepo) Save(customer *model.Customer) error {
 func (repo *CustomerRepo) Create(customer *model.Customer) error {
 	return db.DB.Create(customer).Error
 }
+
+func (repo *CustomerRepo) SetCustomerNoVatStatus(customerID uint, isNoVat bool) error {
+	return db.DB.Model(&model.Customer{}).Where("id = ?", customerID).Update("is_no_vat", isNoVat).Error
+}

app/service/cartsService/cartsService.go

@@ -74,7 +74,7 @@ func (s *CartsService) RetrieveCart(user_id uint, cart_id uint) (*model.Customer
 	return s.repo.RetrieveCart(user_id, cart_id)
 }
 
-func (s *CartsService) AddProduct(user_id uint, cart_id uint, product_id uint, product_attribute_id *uint, amount uint) error {
+func (s *CartsService) AddProduct(user_id uint, cart_id uint, product_id uint, product_attribute_id *uint, amount int, set_amount bool) error {
 	exists, err := s.repo.UserHasCart(user_id, cart_id)
 	if err != nil {
 		return err
@@ -91,5 +91,17 @@ func (s *CartsService) AddProduct(user_id uint, cart_id uint, product_id uint, p
 		return responseErrors.ErrProductOrItsVariationDoesNotExist
 	}
 
-	return s.repo.AddProduct(user_id, cart_id, product_id, product_attribute_id, amount)
+	return s.repo.AddProduct(cart_id, product_id, product_attribute_id, uint(amount), set_amount)
+}
+
+func (s *CartsService) RemoveProduct(user_id uint, cart_id uint, product_id uint, product_attribute_id *uint) error {
+	exists, err := s.repo.UserHasCart(user_id, cart_id)
+	if err != nil {
+		return err
+	}
+	if !exists {
+		return responseErrors.ErrUserHasNoSuchCart
+	}
+
+	return s.repo.RemoveProduct(cart_id, product_id, product_attribute_id)
 }

app/service/customerService/customerService.go

@@ -24,3 +24,7 @@ func (s *CustomerService) GetById(id uint) (*model.Customer, error) {
 func (s *CustomerService) Find(langId uint, p find.Paging, filt *filters.FiltersList, search string) (*find.Found[model.UserInList], error) {
 	return s.repo.Find(langId, p, filt, search)
 }
+
+func (s *CustomerService) SetCustomerNoVatStatus(customerID uint, isNoVat bool) error {
+	return s.repo.SetCustomerNoVatStatus(customerID, isNoVat)
+}

app/utils/const_data/consts.go

@@ -15,6 +15,7 @@ var CATEGORY_BLACKLIST = []uint{250}
 
 const MAX_AMOUNT_OF_CARTS_PER_USER = 10
 const DEFAULT_NEW_CART_NAME = "new cart"
+const MAX_AMOUNT_OF_PRODUCT_IN_CART = 1024
 
 const MAX_AMOUNT_OF_ADDRESSES_PER_USER = 10
 

app/utils/responseErrors/responseErrors.go

@@ -65,6 +65,8 @@ var (
 	ErrMaxAmtOfCartsReached              = errors.New("maximal amount of carts reached")
 	ErrUserHasNoSuchCart                 = errors.New("user does not have cart with given id")
 	ErrProductOrItsVariationDoesNotExist = errors.New("product or its variation with given ids does not exist")
+	ErrAmountMustBePositive              = errors.New("amount must be positive")
+	ErrAmountMustBeReasonable            = errors.New("amount must be reasonable")
 
 	// Typed errors for orders handler
 	ErrEmptyCart          = errors.New("the cart is empty")
@@ -205,6 +207,10 @@ func GetErrorCode(c fiber.Ctx, err error) string {
 		return i18n.T_(c, "error.err_user_has_no_such_cart")
 	case errors.Is(err, ErrProductOrItsVariationDoesNotExist):
 		return i18n.T_(c, "error.err_product_or_its_variation_does_not_exist")
+	case errors.Is(err, ErrAmountMustBePositive):
+		return i18n.T_(c, "error.err_amount_must_be_positive")
+	case errors.Is(err, ErrAmountMustBeReasonable):
+		return i18n.T_(c, "error.err_amount_must_be_reasonable")
 
 	case errors.Is(err, ErrEmptyCart):
 		return i18n.T_(c, "error.err_cart_is_empty")
@@ -292,6 +298,8 @@ func GetErrorStatus(err error) int {
 		errors.Is(err, ErrMaxAmtOfCartsReached),
 		errors.Is(err, ErrUserHasNoSuchCart),
 		errors.Is(err, ErrProductOrItsVariationDoesNotExist),
+		errors.Is(err, ErrAmountMustBePositive),
+		errors.Is(err, ErrAmountMustBeReasonable),
 		errors.Is(err, ErrEmptyCart),
 		errors.Is(err, ErrUserHasNoSuchOrder),
 		errors.Is(err, ErrInvalidReductionType),

bruno/api_v1/customer/Set is_no_vat.yml

@@ -0,0 +1,22 @@
+info:
+  name: Set is_no_vat
+  type: http
+  seq: 4
+
+http:
+  method: PATCH
+  url: "{{bas_url}}/restricted/customer/no-vat"
+  body:
+    type: json
+    data: |-
+      {
+        "customer_id":1,
+        "is_no_vat": false
+      }
+  auth: inherit
+
+settings:
+  encodeUrl: true
+  timeout: 0
+  followRedirects: true
+  maxRedirects: 5

bruno/b2b_daniel/carts/add-product-to-cart (1).yml

@@ -5,7 +5,7 @@ info:
 
 http:
   method: GET
-  url: http://localhost:3000/api/v1/restricted/carts/add-product-to-cart?cart_id=1&product_id=51&amount=1
+  url: http://localhost:3000/api/v1/restricted/carts/add-product-to-cart?cart_id=1&product_id=51&amount=1&set_amount=false
   params:
     - name: cart_id
       value: "1"
@@ -16,6 +16,9 @@ http:
     - name: amount
       value: "1"
       type: query
+    - name: set_amount
+      value: "false"
+      type: query
   auth: inherit
 
 settings:

bruno/b2b_daniel/carts/add-product-to-cart.yml

@@ -5,7 +5,7 @@ info:
 
 http:
   method: GET
-  url: http://localhost:3000/api/v1/restricted/carts/add-product-to-cart?cart_id=1&product_id=51&product_attribute_id=1115&amount=1
+  url: http://localhost:3000/api/v1/restricted/carts/add-product-to-cart?cart_id=1&product_id=51&product_attribute_id=1115&amount=1&set_amount=true
   params:
     - name: cart_id
       value: "1"
@@ -19,6 +19,9 @@ http:
     - name: amount
       value: "1"
       type: query
+    - name: set_amount
+      value: "true"
+      type: query
   auth: inherit
 
 settings:

i18n/migrations/20260302163122_create_tables.sql

@@ -112,7 +112,8 @@ CREATE TABLE IF NOT EXISTS b2b_customers (
   country_id                      INT NULL DEFAULT 2,
   created_at                      DATETIME(6) NULL,
   updated_at                      DATETIME(6) NULL,
-  deleted_at                      DATETIME(6) NULL
+  deleted_at                      DATETIME(6) NULL,
+  is_no_vat                     TINYINT(1) NULL DEFAULT 0 
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
 
 CREATE UNIQUE INDEX IF NOT EXISTS idx_customers_email

i18n/migrations/20260302163123_create_tables_data.sql

@@ -76,6 +76,7 @@ INSERT INTO `b2b_route_roles` (`route_id`, `role_id`) VALUES
 (2, '1'),
 (2, '2'),
 (2, '3'),
+(2, '4'),
 (3, '1'),
 (3, '2'),
 (3, '3'),

i18n/migrations/20260319163200_procedures.sql

@@ -16,6 +16,7 @@ READS SQL DATA
 BEGIN
 
   DECLARE v_tax_rate DECIMAL(10,4) DEFAULT 0;
+  DECLARE v_tax_group INT;
 
   DECLARE v_base_raw DECIMAL(20,6);
   DECLARE v_base DECIMAL(20,6);
@@ -29,45 +30,54 @@ BEGIN
 
   DECLARE v_has_specific INT DEFAULT 0;
 
-  -- currency
   DECLARE v_target_currency BIGINT;
   DECLARE v_target_rate DECIMAL(13,6) DEFAULT 1;
   DECLARE v_specific_rate DECIMAL(13,6) DEFAULT 1;
 
+  DECLARE v_is_no_vat TINYINT DEFAULT 0;
+
   SET p_id_product_attribute = NULLIF(p_id_product_attribute, 0);
 
+  -- ================= CUSTOMER VAT =================
+  SELECT COALESCE(c.is_no_vat, 0)
+  INTO v_is_no_vat
+  FROM b2b_customers c
+  WHERE c.id = p_id_customer
+  LIMIT 1;
+
+  -- ================= TAX GROUP =================
+  SELECT ps.id_tax_rules_group
+  INTO v_tax_group
+  FROM ps_product_shop ps
+  WHERE ps.id_product = p_id_product
+    AND ps.id_shop = p_id_shop
+  LIMIT 1;
+
   -- ================= TAX =================
   SELECT COALESCE(t.rate, 0)
   INTO v_tax_rate
   FROM ps_tax_rule tr
   JOIN ps_tax t ON t.id_tax = tr.id_tax
   LEFT JOIN b2b_countries c ON c.id = p_id_country
-  WHERE tr.id_tax_rules_group = (
+  WHERE tr.id_tax_rules_group = v_tax_group
-    SELECT ps.id_tax_rules_group
-    FROM ps_product_shop ps
-    WHERE ps.id_product = p_id_product
-      AND ps.id_shop = p_id_shop
-    LIMIT 1
-  )
     AND tr.id_country = c.ps_id_country
   LIMIT 1;
 
-  -- ================= TARGET CURRENCY =================
+  IF v_is_no_vat = 1 THEN
-  SELECT c.b2b_id_currency
+    SET v_tax_rate = 0;
-  INTO v_target_currency
+  END IF;
-  FROM b2b_countries c
-  WHERE c.id = p_id_country
-  LIMIT 1;
 
-  -- latest target rate
+  -- ================= CURRENCY =================
-  SELECT r.conversion_rate
+  SELECT c.b2b_id_currency, r.conversion_rate
-  INTO v_target_rate
+  INTO v_target_currency, v_target_rate
-  FROM b2b_currency_rates r
+  FROM b2b_countries c
-  WHERE r.b2b_id_currency = v_target_currency
+  LEFT JOIN b2b_currency_rates r
+    ON r.b2b_id_currency = c.b2b_id_currency
+  WHERE c.id = p_id_country
   ORDER BY r.created_at DESC
   LIMIT 1;
 
-  -- ================= BASE PRICE (RAW) =================
+  -- ================= BASE PRICE =================
   SELECT
     COALESCE(ps.price, p.price) + COALESCE(pas.price, 0)
   INTO v_base_raw
@@ -79,8 +89,8 @@ BEGIN
     AND pas.id_shop = p_id_shop
   WHERE p.id_product = p_id_product;
 
-  -- convert base to target currency
   SET v_base = v_base_raw * v_target_rate;
+  SET v_excl = v_base;
 
   -- ================= RULE SELECTION =================
   SELECT
@@ -99,71 +109,67 @@ BEGIN
 
   FROM b2b_specific_price bsp
 
+  LEFT JOIN b2b_specific_price_product spp
+    ON spp.b2b_specific_price_id = bsp.id
+    AND spp.id_product = p_id_product
+
+  LEFT JOIN b2b_specific_price_product_attribute spa
+    ON spa.b2b_specific_price_id = bsp.id
+    AND spa.id_product_attribute = p_id_product_attribute
+
+  LEFT JOIN b2b_specific_price_customer spc
+    ON spc.b2b_specific_price_id = bsp.id
+    AND spc.b2b_id_customer = p_id_customer
+
+  LEFT JOIN b2b_specific_price_country spco
+    ON spco.b2b_specific_price_id = bsp.id
+    AND spco.b2b_id_country = p_id_country
+
+  LEFT JOIN b2b_specific_price_category spcat
+    ON spcat.b2b_specific_price_id = bsp.id
+
+  LEFT JOIN ps_category_product cp
+    ON cp.id_category = spcat.id_category
+    AND cp.id_product = p_id_product
+
   WHERE bsp.is_active = 1
     AND bsp.from_quantity <= p_quantity
 
-    -- intersection rules (unchanged)
+    AND (spp.id_product IS NOT NULL OR NOT EXISTS (
-    AND (
+          SELECT 1 FROM b2b_specific_price_product x WHERE x.b2b_specific_price_id = bsp.id
-      NOT EXISTS (SELECT 1 FROM b2b_specific_price_product x WHERE x.b2b_specific_price_id = bsp.id)
+        ))
-      OR EXISTS (SELECT 1 FROM b2b_specific_price_product x WHERE x.b2b_specific_price_id = bsp.id AND x.id_product = p_id_product)
-    )
 
-    AND (
+    AND (spa.id_product_attribute IS NOT NULL OR NOT EXISTS (
-      NOT EXISTS (SELECT 1 FROM b2b_specific_price_product_attribute x WHERE x.b2b_specific_price_id = bsp.id)
+          SELECT 1 FROM b2b_specific_price_product_attribute x WHERE x.b2b_specific_price_id = bsp.id
-      OR EXISTS (SELECT 1 FROM b2b_specific_price_product_attribute x WHERE x.b2b_specific_price_id = bsp.id AND x.id_product_attribute = p_id_product_attribute)
+        ))
-    )
 
-    AND (
+    AND (spc.b2b_id_customer IS NOT NULL OR NOT EXISTS (
-      NOT EXISTS (SELECT 1 FROM b2b_specific_price_category x WHERE x.b2b_specific_price_id = bsp.id)
+          SELECT 1 FROM b2b_specific_price_customer x WHERE x.b2b_specific_price_id = bsp.id
-      OR EXISTS (
+        ))
-        SELECT 1 FROM b2b_specific_price_category x
-        JOIN ps_category_product cp ON cp.id_category = x.id_category
-        WHERE x.b2b_specific_price_id = bsp.id AND cp.id_product = p_id_product
-      )
-    )
 
-    AND (
+    AND (spco.b2b_id_country IS NOT NULL OR NOT EXISTS (
-      NOT EXISTS (SELECT 1 FROM b2b_specific_price_customer x WHERE x.b2b_specific_price_id = bsp.id)
+          SELECT 1 FROM b2b_specific_price_country x WHERE x.b2b_specific_price_id = bsp.id
-      OR EXISTS (SELECT 1 FROM b2b_specific_price_customer x WHERE x.b2b_specific_price_id = bsp.id AND x.b2b_id_customer = p_id_customer)
+        ))
-    )
 
-    AND (
+    AND (cp.id_product IS NOT NULL OR NOT EXISTS (
-      NOT EXISTS (SELECT 1 FROM b2b_specific_price_country x WHERE x.b2b_specific_price_id = bsp.id)
+          SELECT 1 FROM b2b_specific_price_category x WHERE x.b2b_specific_price_id = bsp.id
-      OR EXISTS (SELECT 1 FROM b2b_specific_price_country x WHERE x.b2b_specific_price_id = bsp.id AND x.b2b_id_country = p_id_country)
+        ))
-    )
 
   ORDER BY
-    -- customer wins
+    (spc.b2b_id_customer IS NOT NULL) DESC,
-    (EXISTS (SELECT 1 FROM b2b_specific_price_customer x WHERE x.b2b_specific_price_id = bsp.id AND x.b2b_id_customer = p_id_customer)) DESC,
+    (spa.id_product_attribute IS NOT NULL) DESC,
-
+    (spp.id_product IS NOT NULL) DESC,
-    -- attribute
+    (cp.id_product IS NOT NULL) DESC,
-    (EXISTS (SELECT 1 FROM b2b_specific_price_product_attribute x WHERE x.b2b_specific_price_id = bsp.id AND x.id_product_attribute = p_id_product_attribute)) DESC,
+    (spco.b2b_id_country IS NOT NULL) DESC,
-
-    -- product
-    (EXISTS (SELECT 1 FROM b2b_specific_price_product x WHERE x.b2b_specific_price_id = bsp.id AND x.id_product = p_id_product)) DESC,
-
-    -- category
-    (EXISTS (
-      SELECT 1 FROM b2b_specific_price_category x
-      JOIN ps_category_product cp ON cp.id_category = x.id_category
-      WHERE x.b2b_specific_price_id = bsp.id AND cp.id_product = p_id_product
-    )) DESC,
-
-    -- country
-    (EXISTS (SELECT 1 FROM b2b_specific_price_country x WHERE x.b2b_specific_price_id = bsp.id AND x.b2b_id_country = p_id_country)) DESC,
-
     bsp.id DESC
 
   LIMIT 1;
 
   -- ================= APPLY =================
-  SET v_excl = v_base;
-
   IF v_has_specific = 1 THEN
 
     IF v_reduction_type = 'amount' THEN
 
-      -- convert specific price currency if needed
       IF v_specific_currency_id IS NOT NULL AND v_specific_currency_id != v_target_currency THEN
 
         SELECT r.conversion_rate
@@ -173,7 +179,6 @@ BEGIN
         ORDER BY r.created_at DESC
         LIMIT 1;
 
-        -- normalize → then convert to target
         SET v_excl = (v_fixed_price / v_specific_rate) * v_target_rate;
 
       ELSE