fix: Implementar generación automática de pruebas y mejorar selección de muestras

- Agregar método _generate_lab_tests() en sale.order para crear pruebas automáticamente al confirmar orden
- Agregar método _find_sample_for_analysis() para asociar muestras con análisis según tipo
- Mejorar dominio de sample_id en lims.test para filtrar por paciente y estado (collected/in_analysis)
- Agregar método _onchange_sale_order_line() para actualizar dominio de muestra dinámicamente
- Las pruebas ahora se crean automáticamente con la muestra correcta asignada

Esto resuelve el problema reportado donde las órdenes aprobadas no generaban pruebas
y las muestras no estaban disponibles para selección manual.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

lims_management/models/lims_test.py

@@ -47,7 +47,7 @@ class LimsTest(models.Model):
     sample_id = fields.Many2one(
         'stock.lot',
         string='Muestra',
-        domain="[('is_lab_sample', '=', True)]",
+        domain="[('is_lab_sample', '=', True), ('patient_id', '=', patient_id), ('state', 'in', ['collected', 'in_analysis'])]",
         tracking=True
     )
     
@@ -110,6 +110,36 @@ class LimsTest(models.Model):
         for record in self:
             record.require_validation = require_validation == 'True'
     
+    @api.onchange('sale_order_line_id')
+    def _onchange_sale_order_line(self):
+        """Update sample domain when order line changes"""
+        if self.sale_order_line_id:
+            # Try to find a suitable sample from the order
+            order = self.sale_order_line_id.order_id
+            product = self.sale_order_line_id.product_id
+            
+            if order.is_lab_request and product.required_sample_type_id:
+                # Find samples for this patient with the required sample type
+                suitable_samples = self.env['stock.lot'].search([
+                    ('is_lab_sample', '=', True),
+                    ('patient_id', '=', order.partner_id.id),
+                    ('sample_type_product_id', '=', product.required_sample_type_id.id),
+                    ('state', 'in', ['collected', 'in_analysis'])
+                ])
+                
+                if suitable_samples:
+                    # If only one sample, select it automatically
+                    if len(suitable_samples) == 1:
+                        self.sample_id = suitable_samples[0]
+                    # Update domain to show only suitable samples
+                    return {
+                        'domain': {
+                            'sample_id': [
+                                ('id', 'in', suitable_samples.ids)
+                            ]
+                        }
+                    }
+    
     @api.model_create_multi
     def create(self, vals_list):
         """Genera código único al crear."""

lims_management/models/sale_order.py

@@ -34,20 +34,21 @@ class SaleOrder(models.Model):
     )
     
     def action_confirm(self):
-        """Override to generate laboratory samples automatically"""
+        """Override to generate laboratory samples and tests automatically"""
         res = super(SaleOrder, self).action_confirm()
         
-        # Generate samples only for laboratory requests
+        # Generate samples and tests only for laboratory requests
         for order in self.filtered('is_lab_request'):
             try:
                 order._generate_lab_samples()
+                order._generate_lab_tests()
             except Exception as e:
-                _logger.error(f"Error generating samples for order {order.name}: {str(e)}")
-                # Continue with order confirmation even if sample generation fails
+                _logger.error(f"Error generating samples/tests for order {order.name}: {str(e)}")
+                # Continue with order confirmation even if generation fails
                 # But notify the user
                 order.message_post(
-                    body=_("Error al generar muestras automáticamente: %s. "
-                          "Por favor, genere las muestras manualmente.") % str(e),
+                    body=_("Error al generar muestras/pruebas automáticamente: %s. "
+                          "Por favor, genere las muestras y pruebas manualmente.") % str(e),
                     message_type='notification'
                 )
         
@@ -163,3 +164,71 @@ class SaleOrder(models.Model):
             raise UserError(
                 _("Error al crear muestra para %s: %s") % (sample_type.name, str(e))
             )
+    
+    def _generate_lab_tests(self):
+        """Generate laboratory tests for analysis order lines"""
+        self.ensure_one()
+        _logger.info(f"Generating laboratory tests for order {self.name}")
+        
+        # Get the test model
+        TestModel = self.env['lims.test']
+        created_tests = TestModel.browse()
+        
+        # Create a test for each analysis line
+        for line in self.order_line:
+            if not line.product_id.is_analysis:
+                continue
+            
+            # Find appropriate sample for this analysis
+            sample = self._find_sample_for_analysis(line.product_id)
+            
+            if not sample:
+                _logger.warning(
+                    f"No sample found for analysis {line.product_id.name} in order {self.name}"
+                )
+                self.message_post(
+                    body=_("Advertencia: No se encontró muestra para el análisis '%s'") % line.product_id.name,
+                    message_type='notification'
+                )
+                continue
+            
+            # Create the test
+            try:
+                test = TestModel.create({
+                    'sale_order_line_id': line.id,
+                    'sample_id': sample.id,
+                })
+                created_tests |= test
+                _logger.info(f"Created test {test.name} for analysis {line.product_id.name}")
+            except Exception as e:
+                _logger.error(f"Error creating test for {line.product_id.name}: {str(e)}")
+                self.message_post(
+                    body=_("Error al crear prueba para '%s': %s") % (line.product_id.name, str(e)),
+                    message_type='notification'
+                )
+        
+        # Post message with created tests
+        if created_tests:
+            test_list = "<ul>"
+            for test in created_tests:
+                test_list += f"<li>{test.name} - {test.product_id.name}</li>"
+            test_list += "</ul>"
+            
+            self.message_post(
+                body=_("Pruebas generadas automáticamente: %s") % test_list,
+                message_type='notification'
+            )
+            _logger.info(f"Created {len(created_tests)} tests for order {self.name}")
+    
+    def _find_sample_for_analysis(self, product):
+        """Find the appropriate sample for an analysis product"""
+        # Check if the analysis has a required sample type
+        if not product.required_sample_type_id:
+            return False
+        
+        # Find a generated sample with matching sample type
+        for sample in self.generated_sample_ids:
+            if sample.sample_type_product_id.id == product.required_sample_type_id.id:
+                return sample
+        
+        return False