[FIX] account: cash basis in statement

- Set up a 10 % tax with a 'Tax Due' as 'Based on Payment'
- Create a bank statement of 110, Reconcile
- Create a new AML for the reconciliation using the mentioned tax for an
  amount of 100
- Validate

The tax amount does not appear in the Generic Tax Report.

This is a specific case where the reconciliation process creates the
payment itself. Therefore, the tax amount should appear in the report.

To do so, we explicitly send the `tax_exigible` value on the AML, and
propagate it to the tax line.

opw-1858492

addons/account/models/account.py

@@ -994,6 +994,7 @@ class AccountTax(models.Model):
                 'refund_account_id': tax.refund_account_id.id,
                 'analytic': tax.analytic,
                 'price_include': tax.price_include,
+                'tax_exigibility': tax.tax_exigibility,
             })
 
         return {

addons/account/models/account_move.py

@@ -1313,6 +1313,8 @@ class AccountMoveLine(models.Model):
                             ctx['date'] = vals['date']
                         temp['currency_id'] = bank.currency_id.id
                         temp['amount_currency'] = bank.company_id.currency_id.with_context(ctx).compute(tax_vals['amount'], bank.currency_id, round=True)
+                    if vals.get('tax_exigible'):
+                        temp['tax_exigible'] = True
                     tax_lines_vals.append(temp)
 
         #Toggle the 'tax_exigible' field to False in case it is not yet given and the tax in 'tax_line_id' or one of

addons/account/static/src/js/reconciliation/reconciliation_model.js

@@ -819,6 +819,7 @@ var StatementModel = BasicModel.extend({
 
                             prop.computed_with_tax = tax.price_include
                             prop.tax_amount = tax.amount
+                            prop.tax_exigible = tax.tax_exigibility === 'on_payment' ? true : undefined
                             prop.amount = tax.base;
                             prop.amount_str = field_utils.format.monetary(Math.abs(prop.amount), {}, formatOptions);
                             prop.invalid = !self._isValid(prop);
@@ -1105,6 +1106,7 @@ var StatementModel = BasicModel.extend({
             name : prop.label,
             debit : amount > 0 ? amount : 0,
             credit : amount < 0 ? -amount : 0,
+            tax_exigible: prop.tax_exigible,
             // This one isn't usefull for the server,
             // But since we need to change the amount (and thus its semantics) into base_amount
             // It might be useful to have a trace in the RPC for debugging purposes