[IMP] sale_timesheet: hide 'invoice' button when no service to invoice

In plan project, when there is something to invoice on the SO
the "Create Invoice" button will be displayed, even if the
"to invoice" amount is zero. This can happen when the SO contains
an ordered service line (that does not create project/task). This
line will be in 'to invoice' status, but it is not taken into
account on the plan project since it does not interact with the
project (no created task, no timesheet, ...)
So, to avoid confusion, we hide the button on the project
overview.

Task #1857652

addons/sale_timesheet/controllers/main.py

@@ -27,7 +27,7 @@ class SaleTimesheetController(http.Controller):
         return {
             'html_content': view.render(values),
             'project_ids': projects.ids,
-            'actions': self._plan_prepare_actions(projects),
+            'actions': self._plan_prepare_actions(projects, values),
         }
 
     def _plan_prepare_values(self, projects):
@@ -312,7 +312,7 @@ class SaleTimesheetController(http.Controller):
     # Actions: Stat buttons, ...
     # --------------------------------------------------
 
-    def _plan_prepare_actions(self, projects):
+    def _plan_prepare_actions(self, projects, values):
         actions = []
         if len(projects) == 1:
             if request.env.user.has_group('sales_team.group_sale_salesman'):
@@ -324,8 +324,9 @@ class SaleTimesheetController(http.Controller):
                         'context': json.dumps({'active_id': projects.id, 'active_model': 'project.project'}),
                     })
             if request.env.user.has_group('sales_team.group_sale_salesman_all_leads'):
+                to_invoice_amount = values['dashboard']['profit'].get('to_invoice', False)  # plan project only takes services SO line with timesheet into account
                 sale_orders = projects.tasks.mapped('sale_line_id.order_id').filtered(lambda so: so.invoice_status == 'to invoice')
-                if sale_orders:
+                if to_invoice_amount and sale_orders:
                     if len(sale_orders) == 1:
                         actions.append({
                             'label': _("Create Invoice"),
@@ -417,5 +418,5 @@ class SaleTimesheetController(http.Controller):
         elif res_model == 'account.invoice':
             action = clean_action(request.env.ref('account.action_invoice_tree1').read()[0])
             action['domain'] = domain
-            action['context'] = {'create': False, 'edit': False, 'delete': False}  # No CRUD operation when coming from overview
+            action['context'] = {'create': False, 'delete': False}  # only edition of invoice from overview
         return action