feat(#60): Mejorar control y trazabilidad de re-muestreos

- Respetar configuración del wizard (checkbox crear re-muestra)
- Prevenir creación de múltiples re-muestras activas
- Agregar campos para trazabilidad completa:
  - root_sample_id: muestra original de la cadena
  - resample_chain_count: total de re-muestreos en cadena
- Validar límite de re-muestreos por cadena completa
- Mejorar vista con información de trazabilidad
- Método auxiliar para contar re-muestreos recursivamente

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

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

lims_management/models/stock_lot.py

@@ -131,6 +131,18 @@ class StockLot(models.Model):
         compute='_compute_is_resample',
         store=True
     )
+    root_sample_id = fields.Many2one(
+        'stock.lot',
+        string='Muestra Original (Raíz)',
+        compute='_compute_root_sample',
+        store=True,
+        help='Muestra original de la cadena de re-muestreos'
+    )
+    resample_chain_count = fields.Integer(
+        string='Re-muestreos en Cadena',
+        compute='_compute_resample_chain_count',
+        help='Número total de re-muestreos en toda la cadena'
+    )
 
     def action_collect(self):
         """Mark sample as collected"""
@@ -216,8 +228,12 @@ class StockLot(models.Model):
             }
         }
     
-    def action_reject(self):
+    def action_reject(self, create_resample=None):
-        """Reject the sample - to be called from wizard"""
+        """Reject the sample - to be called from wizard
+        
+        Args:
+            create_resample: Boolean to force resample creation. If None, uses system config
+        """
         self.ensure_one()
         if self.state == 'completed':
             raise ValueError('No se puede rechazar una muestra ya completada')
@@ -250,11 +266,19 @@ class StockLot(models.Model):
                 message_type='notification'
             )
         
-        # Check if automatic resample is enabled
+        # Determine if we should create a resample
-        IrConfig = self.env['ir.config_parameter'].sudo()
+        should_create_resample = False
-        auto_resample = IrConfig.get_param('lims_management.auto_resample_on_rejection', 'True') == 'True'
         
-        if auto_resample:
+        if create_resample is not None:
+            # Explicit value from wizard
+            should_create_resample = create_resample
+        else:
+            # Check system configuration
+            IrConfig = self.env['ir.config_parameter'].sudo()
+            auto_resample = IrConfig.get_param('lims_management.auto_resample_on_rejection', 'True') == 'True'
+            should_create_resample = auto_resample
+        
+        if should_create_resample:
             try:
                 # Create resample automatically
                 resample_action = self.action_create_resample()
@@ -408,10 +432,38 @@ class StockLot(models.Model):
         for record in self:
             record.resample_count = len(record.child_sample_ids)
     
+    @api.depends('parent_sample_id')
+    def _compute_root_sample(self):
+        """Compute the root sample of the resample chain"""
+        for record in self:
+            root = record
+            while root.parent_sample_id:
+                root = root.parent_sample_id
+            record.root_sample_id = root if root != record else False
+    
+    @api.depends('parent_sample_id', 'child_sample_ids')
+    def _compute_resample_chain_count(self):
+        """Compute total resamples in the entire chain"""
+        for record in self:
+            # Find root sample
+            root = record
+            while root.parent_sample_id:
+                root = root.parent_sample_id
+            # Count all resamples from root
+            record.resample_chain_count = self._count_all_resamples_in_chain(root)
+    
     def action_create_resample(self):
         """Create a new sample as a resample of the current one"""
         self.ensure_one()
         
+        # Check if there's already an active resample
+        active_resamples = self.child_sample_ids.filtered(
+            lambda s: s.state not in ['rejected', 'cancelled', 'disposed']
+        )
+        if active_resamples:
+            raise UserError(_('Esta muestra ya tiene una re-muestra activa (%s). No se puede crear otra hasta que se procese o rechace la existente.') % 
+                          ', '.join(active_resamples.mapped('name')))
+        
         # Get configuration
         IrConfig = self.env['ir.config_parameter'].sudo()
         auto_resample = IrConfig.get_param('lims_management.auto_resample_on_rejection', 'True') == 'True'
@@ -419,9 +471,17 @@ class StockLot(models.Model):
         prefix = IrConfig.get_param('lims_management.resample_prefix', 'RE-')
         max_attempts = int(IrConfig.get_param('lims_management.max_resample_attempts', '3'))
         
-        # Check maximum resample attempts
+        # Find the original sample (root of the resample chain)
-        if max_attempts > 0 and self.resample_count >= max_attempts:
+        original_sample = self
-            raise UserError(_('Se ha alcanzado el número máximo de re-muestreos (%d) para esta muestra.') % max_attempts)
+        while original_sample.parent_sample_id:
+            original_sample = original_sample.parent_sample_id
+        
+        # Count all resamples in the chain
+        total_resamples = self._count_all_resamples_in_chain(original_sample)
+        
+        # Check maximum resample attempts based on the entire chain
+        if max_attempts > 0 and total_resamples >= max_attempts:
+            raise UserError(_('Se ha alcanzado el número máximo de re-muestreos (%d) para esta cadena de muestras.') % max_attempts)
         
         # Calculate resample number for naming
         resample_number = self.resample_count + 1
@@ -483,6 +543,20 @@ class StockLot(models.Model):
             'target': 'current',
         }
     
+    def _count_all_resamples_in_chain(self, root_sample):
+        """Count all resamples in the entire chain starting from root"""
+        count = 0
+        samples_to_check = [root_sample]
+        
+        while samples_to_check:
+            sample = samples_to_check.pop(0)
+            # Add all child samples to the check list
+            for child in sample.child_sample_ids:
+                count += 1
+                samples_to_check.append(child)
+        
+        return count
+    
     def _notify_resample_created(self, resample):
         """Notify receptionist users about the created resample"""
         # Find receptionist users

lims_management/views/stock_lot_views.xml

@@ -91,10 +91,12 @@
                         </group>
                         <notebook>
                             <page string="Re-muestreo" invisible="not is_resample and resample_count == 0">
-                                <group>
+                                <group col="4">
                                     <field name="is_resample" invisible="1"/>
                                     <field name="resample_count" invisible="1"/>
                                     <field name="parent_sample_id" readonly="1" invisible="not is_resample"/>
+                                    <field name="root_sample_id" readonly="1" invisible="not is_resample"/>
+                                    <field name="resample_chain_count" readonly="1" invisible="resample_chain_count == 0"/>
                                 </group>
                                 <group string="Re-muestras Generadas" invisible="resample_count == 0">
                                     <field name="child_sample_ids" nolabel="1">
@@ -103,9 +105,16 @@
                                             <field name="state" widget="badge"/>
                                             <field name="collection_date"/>
                                             <field name="rejection_reason_id"/>
+                                            <field name="resample_count" string="Re-muestras propias"/>
                                         </list>
                                     </field>
                                 </group>
+                                <group string="Información de Trazabilidad" invisible="not is_resample">
+                                    <div class="alert alert-info" role="alert">
+                                        <p><i class="fa fa-info-circle"/> Esta muestra es parte de una cadena de re-muestreo.</p>
+                                        <p>Total de re-muestreos en la cadena: <field name="resample_chain_count" readonly="1" nolabel="1" class="oe_inline"/></p>
+                                    </div>
+                                </group>
                             </page>
                         </notebook>
                     </sheet>

lims_management/wizards/sample_rejection_wizard.py

@@ -67,12 +67,8 @@ class SampleRejectionWizard(models.TransientModel):
             'rejection_notes': self.rejection_notes
         })
         
-        # Call the rejection method on the sample
+        # Call the rejection method on the sample with explicit resample creation preference
-        self.sample_id.action_reject()
+        self.sample_id.action_reject(create_resample=self.create_new_sample)
-        
-        # Create new sample request if needed
-        if self.create_new_sample and self.sample_id.request_id:
-            self._create_new_sample_request()
         
         return {'type': 'ir.actions.act_window_close'}