refactor: organize code by domain-driven design

Refactoriza la estructura del proyecto siguiendo principios de Domain-Driven Design,
organizando serializers, API views y servicios por dominios de negocio.

Cambios principales:

## Serializers (serializers/)
- Dividido serializers.py en módulos por dominio:
  * products.py: ProductSerializer, ListProductSerializer
  * customers.py: CustomerSerializer, ListCustomerSerializer
  * sales.py: SaleSerializer, SaleLineSerializer, CatalogSaleSerializer, etc.
  * payments.py: ReconciliationJarSerializer, PaymentMethodSerializer
  * __init__.py: Exporta todos los serializers para mantener compatibilidad

## API Views (api/)
- Dividido api_views.py en módulos por dominio:
  * products.py: ProductView, ProductsFromTrytonView
  * customers.py: CustomerView, CustomersFromTrytonView
  * sales.py: SaleView, CatalogSaleView, SaleSummary, SalesForTrytonView, SalesToTrytonView
  * payments.py: ReconciliateJarView, ReconciliateJarModelView, PaymentMethodView, SalesForReconciliationView
  * admin.py: AdminCodeValidateView
  * __init__.py: Exporta todas las vistas para facilitar importaciones

## Services Layer (services/tryton/)
- Nueva capa de servicios para lógica de negocio Tryton:
  * client.py: get_tryton_client(), TrytonSale, TrytonLineSale, configuración
  * products.py: ProductTrytonService - sincronización de productos
  * customers.py: CustomerTrytonService - sincronización de clientes
  * sales.py: SaleTrytonService - sincronización de ventas
  * __init__.py: Exporta servicios y utilidades

## Actualización de URLs
- Actualizado urls.py para importar desde nuevos módulos
- Mantiene todas las rutas existentes sin cambios

## Eliminación de archivos antiguos
- Eliminado serializers.py (refactorizado a serializers/)
- Eliminado api_views.py (refactorizado a api/)

## Beneficios
✅ Cohesión: Código organizado por dominio de negocio
✅ Separación de responsabilidades: API, Serializers y Services separados
✅ Mantenibilidad: Archivos más pequeños y enfocados
✅ Escalabilidad: Fácil agregar nuevos dominios
✅ Testabilidad: Mejor organización para pruebas por dominio
✅ Reutilización: Servicios Tryton pueden usarse desde cualquier vista

## Estructura final:
- models/ (ya existía organizado por dominio)
- serializers/ (nuevo, organizado por dominio)
- api/ (nuevo, organizado por dominio)
- services/tryton/ (nuevo, capa de servicios)

Tests: 46 tests pasando ✓

tienda_ilusion/don_confiao/services/__init__.py

@@ -0,0 +1,13 @@
+from .tryton import (
+    get_tryton_client,
+    ProductTrytonService,
+    CustomerTrytonService,
+    SaleTrytonService,
+)
+
+__all__ = [
+    "get_tryton_client",
+    "ProductTrytonService",
+    "CustomerTrytonService",
+    "SaleTrytonService",
+]

tienda_ilusion/don_confiao/services/tryton/__init__.py

@@ -0,0 +1,13 @@
+from .client import get_tryton_client, TrytonSale, TrytonLineSale
+from .products import ProductTrytonService
+from .customers import CustomerTrytonService
+from .sales import SaleTrytonService
+
+__all__ = [
+    "get_tryton_client",
+    "TrytonSale",
+    "TrytonLineSale",
+    "ProductTrytonService",
+    "CustomerTrytonService",
+    "SaleTrytonService",
+]

tienda_ilusion/don_confiao/services/tryton/client.py

@@ -0,0 +1,77 @@
+import os
+from sabatron_tryton_rpc_client.client import Client
+
+TRYTON_HOST = os.environ.get("TRYTON_HOST", "localhost")
+TRYTON_DATABASE = os.environ.get("TRYTON_DATABASE", "tryton")
+TRYTON_USERNAME = os.environ.get("TRYTON_USERNAME", "admin")
+TRYTON_PASSWORD = os.environ.get("TRYTON_PASSWORD", "admin")
+TRYTON_COP_CURRENCY = 31
+TRYTON_COMPANY_ID = 1
+TRYTON_SHOPS = [1]
+
+
+def get_tryton_client():
+    """Factory para crear cliente Tryton conectado"""
+    client = Client(
+        hostname=TRYTON_HOST,
+        database=TRYTON_DATABASE,
+        username=TRYTON_USERNAME,
+        password=TRYTON_PASSWORD,
+    )
+    client.connect()
+    return client
+
+
+class TrytonSale:
+    """Representa una venta para exportación a Tryton"""
+    
+    def __init__(self, sale, lines):
+        self.sale = sale
+        self.lines = lines
+
+    def _format_date(self, _date):
+        return {
+            "__class__": "date",
+            "year": _date.year,
+            "month": _date.month,
+            "day": _date.day,
+        }
+
+    def to_tryton(self):
+        return {
+            "company": TRYTON_COMPANY_ID,
+            "shipment_address": self.sale.customer.address_external_id,
+            "invoice_address": self.sale.customer.address_external_id,
+            "currency": TRYTON_COP_CURRENCY,
+            "comment": self.sale.description or "",
+            "description": "Metodo pago: " + str(self.sale.payment_method or ""),
+            "party": self.sale.customer.external_id,
+            "reference": "don_confiao " + str(self.sale.id),
+            "sale_date": self._format_date(self.sale.date),
+            "lines": [
+                [
+                    "create",
+                    [TrytonLineSale(line).to_tryton() for line in self.lines],
+                ]
+            ],
+            "self_pick_up": True,
+        }
+
+
+class TrytonLineSale:
+    """Representa una línea de venta para exportación a Tryton"""
+    
+    def __init__(self, sale_line):
+        self.sale_line = sale_line
+
+    def _format_decimal(self, number):
+        return {"__class__": "Decimal", "decimal": str(number)}
+
+    def to_tryton(self):
+        return {
+            "product": self.sale_line.product.external_id,
+            "quantity": self._format_decimal(self.sale_line.quantity),
+            "type": "line",
+            "unit": self.sale_line.product.unit_external_id,
+            "unit_price": self._format_decimal(self.sale_line.unit_price),
+        }

tienda_ilusion/don_confiao/services/tryton/customers.py

@@ -0,0 +1,81 @@
+from ...models.customers import Customer
+
+
+class CustomerTrytonService:
+    """Servicio para sincronización de clientes con Tryton"""
+
+    def __init__(self, tryton_client):
+        self.client = tryton_client
+
+    def import_from_tryton(self):
+        """Importa clientes desde Tryton"""
+        method = "model.party.party.search"
+        context = {"company": 1}
+        params = [[], 0, 1000, [["name", "ASC"], ["id", None]], context]
+        party_ids = self.client.call(method, params)
+        tryton_parties = self._get_party_details(party_ids, context)
+        
+        checked_tryton_parties = party_ids
+        failed_parties = []
+        updated_customers = []
+        created_customers = []
+        untouched_customers = []
+
+        for tryton_party in tryton_parties:
+            try:
+                customer = Customer.objects.get(external_id=tryton_party.get("id"))
+            except Customer.DoesNotExist:
+                customer = self._create_customer(tryton_party)
+                created_customers.append(customer.id)
+                continue
+            
+            if self._need_update(customer, tryton_party):
+                self._update_customer(customer, tryton_party)
+                updated_customers.append(customer.id)
+            else:
+                untouched_customers.append(customer.id)
+
+        return {
+            "checked_tryton_parties": checked_tryton_parties,
+            "failed_parties": failed_parties,
+            "updated_customers": updated_customers,
+            "created_customers": created_customers,
+            "untouched_customers": untouched_customers,
+        }
+
+    def _get_party_details(self, party_ids, context):
+        """Obtiene detalles de clientes desde Tryton"""
+        tryton_fields = ["id", "name", "addresses"]
+        method = "model.party.party.read"
+        params = (party_ids, tryton_fields, context)
+        response = self.client.call(method, params)
+        return response
+
+    def _need_update(self, customer, tryton_party):
+        """Verifica si el cliente necesita actualización"""
+        if not customer.name == tryton_party.get("name"):
+            return True
+        if tryton_party.get("addresses") and tryton_party.get("addresses")[0]:
+            if not customer.address_external_id == str(
+                tryton_party.get("addresses")[0]
+            ):
+                return True
+        return False
+
+    def _create_customer(self, tryton_party):
+        """Crea un nuevo cliente desde datos de Tryton"""
+        customer = Customer()
+        customer.name = tryton_party.get("name")
+        customer.external_id = tryton_party.get("id")
+        if tryton_party.get("addresses") and tryton_party.get("addresses")[0]:
+            customer.address_external_id = tryton_party.get("addresses")[0]
+        customer.save()
+        return customer
+
+    def _update_customer(self, customer, tryton_party):
+        """Actualiza un cliente existente con datos de Tryton"""
+        customer.name = tryton_party.get("name")
+        customer.external_id = tryton_party.get("id")
+        if tryton_party.get("addresses") and tryton_party.get("addresses")[0]:
+            customer.address_external_id = tryton_party.get("addresses")[0]
+        customer.save()

tienda_ilusion/don_confiao/services/tryton/products.py

@@ -0,0 +1,104 @@
+from ...models.products import Product
+
+
+class ProductTrytonService:
+    """Servicio para sincronización de productos con Tryton"""
+
+    def __init__(self, tryton_client):
+        self.client = tryton_client
+
+    def import_from_tryton(self):
+        """Importa productos desde Tryton"""
+        method = "model.product.product.search"
+        context = {"company": 1}
+        params = [
+            [["salable", "=", True]],
+            0,
+            1000,
+            [["rec_name", "ASC"], ["id", None]],
+            context,
+        ]
+        product_ids = self.client.call(method, params)
+        tryton_products = self._get_product_details(product_ids, context)
+        
+        checked_tryton_products = product_ids
+        failed_products = []
+        updated_products = []
+        created_products = []
+        untouched_products = []
+
+        for tryton_product in tryton_products:
+            try:
+                product = Product.objects.get(external_id=tryton_product.get("id"))
+            except Product.DoesNotExist:
+                try:
+                    product = self._create_product(tryton_product)
+                    created_products.append(product.id)
+                    continue
+                except Exception as e:
+                    print(
+                        f"Error al importar productos: {e}El producto: {tryton_product}"
+                    )
+                    failed_products.append(tryton_product.get("id"))
+                    continue
+
+            if self._need_update(product, tryton_product):
+                self._update_product(product, tryton_product)
+                updated_products.append(product.id)
+            else:
+                untouched_products.append(product.id)
+
+        return {
+            "checked_tryton_products": checked_tryton_products,
+            "failed_products": failed_products,
+            "updated_products": updated_products,
+            "created_products": created_products,
+            "untouched_products": untouched_products,
+        }
+
+    def _get_product_details(self, product_ids, context):
+        """Obtiene detalles de productos desde Tryton"""
+        tryton_fields = [
+            "id",
+            "name",
+            "default_uom.id",
+            "default_uom.rec_name",
+            "list_price",
+        ]
+        method = "model.product.product.read"
+        params = (product_ids, tryton_fields, context)
+        response = self.client.call(method, params)
+        return response
+
+    def _need_update(self, product, tryton_product):
+        """Verifica si el producto necesita actualización"""
+        if not product.name == tryton_product.get("name"):
+            return True
+        if not product.price == tryton_product.get("list_price"):
+            return True
+        unit = tryton_product.get("default_uom.")
+        if not product.measuring_unit == unit.get("rec_name"):
+            return True
+        return False
+
+    def _create_product(self, tryton_product):
+        """Crea un nuevo producto desde datos de Tryton"""
+        product = Product()
+        product.name = tryton_product.get("name")
+        product.price = tryton_product.get("list_price")
+        product.external_id = tryton_product.get("id")
+        unit = tryton_product.get("default_uom.")
+        product.measuring_unit = unit.get("rec_name")
+        product.unit_external_id = unit.get("id")
+        product.save()
+        return product
+
+    def _update_product(self, product, tryton_product):
+        """Actualiza un producto existente con datos de Tryton"""
+        product.name = tryton_product.get("name")
+        product.price = tryton_product.get("list_price")
+        product.external_id = tryton_product.get("id")
+        unit = tryton_product.get("default_uom.")
+        product.measuring_unit = unit.get("rec_name")
+        product.unit_external_id = unit.get("id")
+        product.save()

tienda_ilusion/don_confiao/services/tryton/sales.py

@@ -0,0 +1,41 @@
+from ...models.sales import Sale, SaleLine
+from .client import TrytonSale, TRYTON_COMPANY_ID, TRYTON_SHOPS
+
+
+class SaleTrytonService:
+    """Servicio para sincronización de ventas con Tryton"""
+
+    def __init__(self, tryton_client):
+        self.client = tryton_client
+
+    def send_to_tryton(self):
+        """Envía ventas sin external_id a Tryton"""
+        method = "model.sale.sale.create"
+        tryton_context = {
+            "company": TRYTON_COMPANY_ID,
+            "shops": TRYTON_SHOPS,
+        }
+
+        successful = []
+        failed = []
+
+        sales = Sale.objects.filter(external_id=None)
+        for sale in sales:
+            try:
+                lines = SaleLine.objects.filter(sale=sale.id)
+                tryton_params = self._to_tryton_params(sale, lines, tryton_context)
+                external_ids = self.client.call(method, tryton_params)
+                sale.external_id = external_ids[0]
+                sale.save()
+                successful.append(sale.id)
+            except Exception as e:
+                print(f"Error al enviar la venta: {e}venta_id: {sale.id}")
+                failed.append(sale.id)
+                continue
+
+        return {"successful": successful, "failed": failed}
+
+    def _to_tryton_params(self, sale, lines, tryton_context):
+        """Convierte venta a parámetros para Tryton"""
+        sale_tryton = TrytonSale(sale, lines)
+        return [[sale_tryton.to_tryton()], tryton_context]