Refactor item validation and calculation logic

- Moved validation functions for creating and updating line items to dedicated modules.
- Introduced new calculations module for handling financial calculations related to line items.
- Updated import paths for validation functions to reflect new structure.

backend/api/v1/modules/a76/invoices/services.py

@@ -126,7 +126,10 @@ class InvoiceService:
 
         # Validar si la factura ya existe
         invoice_exists(db, invoice_data.invoice_number, tenant_id, company_id, errors)
-        validate_create_import(db, invoice_data, tenant_id, company_id, errors)
+        if invoice_data.operation_type == "exp":
+            validate_create_export(db, invoice_data, tenant_id, company_id, errors)
+        else:
+            validate_create_import(db, invoice_data, tenant_id, company_id, errors)
 
         # Si hay errores, lanzar excepción ANTES de intentar crear
         errors.raise_if_errors("Error al crear la factura")

backend/api/v1/modules/a76/items/imports/validators/calculations.py

@@ -2,18 +2,8 @@ from sqlalchemy.orm import Session
 from api.v1.modules.a76.invoices.models import InvoiceFinancials, InvoiceHeader, InvoiceLogistics
 from core.exceptions import ErrorCollector
 
-from ....models import LineItem
-from ....line_financials.models import LineFinancial
-from ....line_financials.schemas import LineFinancialCreate
-from ....line_quantities.models import LineQuantity
-from ....line_quantities.schemas import LineQuantityCreate
-from ....line_customs.models import LineCustom
-from ....line_customs.schemas import LineCustomCreate
-from ....line_descriptions.models import LineDescription
-from ....line_descriptions.schemas import LineDescriptionCreate
-from ....line_references.models import LineReference
-from api.v1.modules.a24.fa.fa_item_lines.models import FaLineItem
-from ....models import LineItem
+from ...models import LineItem
+from ...models import LineItem
 from api.v1.modules.a76.classes.models import Class
 
 

backend/api/v1/modules/a76/items/imports/validators/common.py

@@ -4,10 +4,10 @@ from api.v1.modules.a76.invoices.common.common_validators import invoice_exists_
 from core.exceptions import ErrorCollector
 from sqlalchemy import func
 
-from ....common.fractions import search_fraction_preference
-from ....common.common_validators import item_exists
-from ....models import LineItem
-from ....line_customs.models import FractionType, LineCustom
+from ...common.fractions import search_fraction_preference
+from ...common.common_validators import item_exists
+from ...models import LineItem
+from ...line_customs.models import FractionType, LineCustom
 from api.v1.modules.a76.items.schemas import LineItemCreate
 from api.v1.modules.a76.invoices.models import InvoiceHeader
 from api.v1.modules.a76.classes.models import Class
@@ -304,6 +304,10 @@ def validate_common(
     unit_of_measure = line.unit_of_measure or (
         class_.unit_of_measure if class_ else None
     )
+    
+    #TODO: SSisGen Logic Restringer cantidades decimales para piezas, revisar si es necesario agregar validación similar para otras unidades de medida
+    #TODO: SSisGen Logic Seguridad
+    
     if unit_of_measure == "PZA" and line.quantity.quantity % 1 != 0:
         errors.add_error(
             field=f"line[{line_number}].quantity.quantity",

backend/api/v1/modules/a76/items/imports/validators/create.py

@@ -1,21 +1,12 @@
 from decimal import Decimal
 from sqlalchemy import func, exists
 from sqlalchemy.orm import Session
-from ....common.common_validators import count_items
+from ...common.common_validators import count_items
 from core.exceptions import ErrorCollector
 
-from ....models import LineItem
-from ....line_financials.models import LineFinancial
-from ....line_financials.schemas import LineFinancialCreate
-from ....line_quantities.models import LineQuantity
-from ....line_quantities.schemas import LineQuantityCreate
-from ....line_customs.models import LineCustom
-from ....line_customs.schemas import LineCustomCreate
-from ....line_descriptions.models import LineDescription
-from ....line_descriptions.schemas import LineDescriptionCreate
-from ....line_references.models import LineReference
+from ...models import LineItem
 from api.v1.modules.a24.fa.fa_item_lines.models import FaLineItem
-from ....models import LineItem
+from ...models import LineItem
 from api.v1.modules.a76.invoices.models import InvoiceHeader
 from api.v1.modules.a76.classes.models import Class
 from api.v1.modules.a76.general_catalogs.packages.models import Package
@@ -27,7 +18,7 @@ from .common import validate_common
 
 def validate_create(
     db: Session,
-    line: LineItem,  # LineItemCreate schema (Pydantic)    
+    line: LineItem,
     tenant_id: int,
     company_id: int,
     errors: ErrorCollector,
@@ -44,7 +35,7 @@ def validate_create(
     """    
 
     # Access fa_data safely
-    fa_data = getattr(line, "fa_data", None)
+    fa_data: FaLineItem = getattr(line, "fa_data", None)
 
     # Required field validations
     if not line.class_id:

backend/api/v1/modules/a76/items/imports/validators/update.py

@@ -1,9 +1,8 @@
 from decimal import Decimal
 from sqlalchemy.orm import Session
-from api.v1.modules.a76.invoices.common.common_validators import invoice_exists
 from core.exceptions import ErrorCollector
 
-from ....models import LineItem
+from ...models import LineItem
 from api.v1.modules.a76.invoices.models import InvoiceHeader
 from api.v1.modules.a76.general_catalogs.fractions.us_tariff_fractions.models import (
     USTariffFraction,

backend/api/v1/modules/a76/items/service.py

@@ -24,8 +24,8 @@ from api.v1.modules.a76.invoices.common.common_validators import (
     invoice_updated,
 )
 from core.exceptions import ErrorCollector
-from .imports.temporary.validators.create import validate_create
-from .imports.temporary.validators.update import validate_update
+from .imports.validators.create import validate_create as validate_create_import
+from .imports.validators.update import validate_update as validate_update_import
 
 from .schemas import LineItemCreate, LineItemUpdate
 from .line_financials.models import LineFinancial
@@ -329,7 +329,7 @@ class ItemService:
                 item_data.component_part_number_id = resolved_id
 
         # Validar el item
-        validate_create(
+        validate_create_import(
             db,
             item_data,  # Schema Pydantic completo            
             tenant_id,
@@ -443,7 +443,7 @@ class ItemService:
                 item_data.component_part_number_id = resolved_id
 
         # Validar el item que se va a actualizar
-        validate_update(
+        validate_update_import(
             db,
             item_data,  # Schema de update
             db_item,  # LineItem existente en DB