[IMP] mrp: auto-print MO product labels

Add in feature to allow auto-printing of product labels when MO is
done.

Part of task: 3046178 - MRP behavior auto-printing

Part-of: odoo/odoo#126791

addons/mrp/models/mrp_production.py

@@ -2625,4 +2625,16 @@ class MrpProduction(models.Model):
             action = self.env.ref("mrp.action_report_production_order").report_action(productions_to_print.ids, config=False)
             clean_action(action, self.env)
             report_actions.append(action)
+        productions_to_print = self.filtered(lambda p: p.picking_type_id.auto_print_done_mrp_product_labels)
+        productions_by_print_formats = productions_to_print.grouped(lambda p: p.picking_type_id.mrp_product_label_to_print)
+        for print_format in productions_to_print.picking_type_id.mapped('mrp_product_label_to_print'):
+            labels_to_print = productions_by_print_formats.get(print_format)
+            if print_format == 'pdf':
+                action = self.env.ref("mrp.action_report_finished_product").report_action(labels_to_print.ids, config=False)
+                clean_action(action, self.env)
+                report_actions.append(action)
+            elif print_format == 'zpl':
+                action = self.env.ref("mrp.label_manufacture_template").report_action(labels_to_print.ids, config=False)
+                clean_action(action, self.env)
+                report_actions.append(action)
         return report_actions

addons/mrp/models/stock_picking.py

@@ -29,6 +29,12 @@ class StockPickingType(models.Model):
     auto_print_done_production_order = fields.Boolean(
         "Auto Print Done Production Order",
         help="If this checkbox is ticked, Odoo will automatically print the production order of a MO when it is done.")
+    auto_print_done_mrp_product_labels = fields.Boolean(
+        "Auto Print Produced Product Labels",
+        help="If this checkbox is ticked, Odoo will automatically print the product labels of a MO when it is done.")
+    mrp_product_label_to_print = fields.Selection(
+        [('pdf', 'PDF'), ('zpl', 'ZPL')],
+        "Product Label to Print", default='pdf')
 
     @api.depends('code')
     def _compute_use_create_lots(self):

addons/mrp/views/stock_picking_views.xml

@@ -143,6 +143,12 @@
                     <group>
                         <group string="Print when done">
                             <field name="auto_print_done_production_order" string="Production Order"/>
+                            <label for="auto_print_done_mrp_product_labels" string="Product Labels"/>
+                            <div class="o_row">
+                                <field name="auto_print_done_mrp_product_labels" string="Product Labels"/>
+                                <label for="mrp_product_label_to_print" string="Print labels as:" invisible="not auto_print_done_mrp_product_labels" class="fw-bold"/>
+                                <field name="mrp_product_label_to_print" invisible="not auto_print_done_mrp_product_labels"/>
+                            </div>
                         </group>
                         <group string="">
                             <div colspan="2">