Merge branch '12.0-l10n_it_fatturapa_out-discount-amount-percent-abil…

…ity' of git+ssh://github.com/efatto/l10n-italy into 12.0

l10n_it_fatturapa_out/wizard/wizard_export_fatturapa.py

@@ -16,7 +16,7 @@
 from odoo.tools.translate import _
 from odoo.exceptions import UserError
 from odoo.addons.l10n_it_account.tools.account_tools import encode_for_export
-from odoo.tools.float_utils import float_round
+from odoo.tools.float_utils import float_round, float_repr
 
 from odoo.addons.l10n_it_fatturapa.bindings.fatturapa import (
     FatturaElettronica,
@@ -769,10 +769,35 @@ def setDettaglioLinea(
     def setScontoMaggiorazione(self, line):
         res = []
         if line.discount:
-            res.append(ScontoMaggiorazioneType(
-                Tipo='SC',
-                Percentuale='%.2f' % float_round(line.discount, 8)
-            ))
+            str_number = str(line.discount)
+            number = str_number[::-1].find(".")
+            if number <= 2:
+                net_discount = False
+            else:
+                net_discount = line.price_unit * line.discount / 100
+            if net_discount:
+                price_precision = self.env['decimal.precision'].precision_get(
+                    'Product Price for XML e-invoices')
+                if net_discount >= 0:
+                    tipo = 'SC'
+                else:
+                    tipo = 'MG'
+                res.append(ScontoMaggiorazioneType(
+                    Tipo=tipo,
+                    Importo=float_repr(
+                        float_round(net_discount, price_precision),
+                        price_precision,
+                    )
+                ))
+            else:
+                if line.discount >= 0:
+                    tipo = 'SC'
+                else:
+                    tipo = 'MG'
+                res.append(ScontoMaggiorazioneType(
+                    Tipo=tipo,
+                    Percentuale='%.2f' % float_round(line.discount, 8)
+                ))
         return res
 
     def setDatiRiepilogo(self, invoice, body):