[ADD] l10n_jp_ubl_pint: Add PINT e-invoicing for Japan

OpenPeppol released a new extension of its BIS 3 format for
international use: PINT BIS Billing. It serves as a base for per-country
specialization, while keeping a standard core for data being used across
countries. This is not meant to be used directly, but rather to be
extended by country-specific modules.

Japan has implementated PINT and published its specific rules:
https://docs.peppol.eu/poac/jp/pint-jp. A new module is created to add
this format.

task-3469718

closes odoo/odoo#136025

Signed-off-by: Laurent Smet (las) <las@odoo.com>

addons/account_edi_ubl_cii/models/account_edi_common.py

@@ -63,6 +63,7 @@ EAS_MAPPING = {
     'IE': {'9935': 'vat'},
     'IS': {'0196': 'vat'},
     'IT': {'0211': 'vat', '0210': 'l10n_it_codice_fiscale'},
+    'JP': {'0221': 'vat'},
     'LI': {'9936': 'vat'},
     'LT': {'9937': 'vat'},
     'LU': {'9938': 'vat'},

addons/l10n_jp_ubl_pint/__init__.py

@@ -0,0 +1 @@
+from . import models

addons/l10n_jp_ubl_pint/__manifest__.py

@@ -0,0 +1,12 @@
+{
+    'name': 'Japan - UBL PINT',
+    'countries': ['jp'],
+    'version': '1.0',
+    'category': 'Accounting/Localizations/EDI',
+    'description': """
+    The UBL PINT e-invoicing format for Japan is based on the Peppol International (PINT) model for Billing.
+    """,
+    'depends': ['account_edi_ubl_cii'],
+    'installable': True,
+    'license': 'LGPL-3'
+}

addons/l10n_jp_ubl_pint/models/__init__.py

@@ -0,0 +1,2 @@
+from . import account_edi_xml_pint_jp
+from . import res_partner

addons/l10n_jp_ubl_pint/models/account_edi_xml_pint_jp.py

@@ -0,0 +1,89 @@
+from odoo import models
+
+
+class AccountEdiXmlUBLPINTJP(models.AbstractModel):
+    _inherit = "account.edi.xml.ubl_bis3"
+    _name = 'account.edi.xml.pint_jp'
+    _description = "Japanese implementation of Peppol International (PINT) model for Billing"
+    """
+    Pint is a standard for International Billing from Peppol. It is based on Peppol BIS Billing 3.
+    It serves as a base for per-country specialization, while keeping a standard core for data being used
+    across countries. This is not meant to be used directly, but rather to be extended by country-specific modules.
+
+    The JP PINT format is the Japanese implementation of PINT.
+
+    * PINT Official documentation: https://docs.peppol.eu/poac/pint/pint/
+    * PINT JP Official documentation: https://docs.peppol.eu/poac/jp/pint-jp
+    """
+
+    def _export_invoice_filename(self, invoice):
+        # EXTENDS account_edi_ubl_cii
+        return f"{invoice.name.replace('/', '_')}_pint_jp.xml"
+
+    def _get_partner_address_vals(self, partner):
+        # EXTENDS account_edi_ubl_cii
+        vals = super()._get_partner_address_vals(partner)
+        vals.pop('country_subentity_code', None)
+        return vals
+
+    def _get_partner_party_legal_entity_vals_list(self, partner):
+        # EXTENDS account_edi_ubl_cii
+        vals_list = super()._get_partner_party_legal_entity_vals_list(partner)
+        for vals in vals_list:
+            vals.pop('company_id')  # optional, if set: scheme_id should be taken from ISO/IEC 6523 list
+        return vals_list
+
+    def _get_invoice_period_vals_list(self, invoice):
+        # EXTENDS
+        vals_list = super()._get_invoice_period_vals_list(invoice)
+        # [aligned-ibrp-052] An Invoice MUST have an invoice period (ibg-14) or an Invoice line period (ibg-26).
+        vals_list.append({
+            'start_date': invoice.invoice_date,
+            'end_date': invoice.invoice_date,
+        })
+        return vals_list
+
+    def _get_invoice_tax_totals_vals_list(self, invoice, taxes_vals):
+        # [aligned-ibr-jp-06]-Tax category tax amount (ibt-117) with currency code JPY and tax category tax amount
+        # in accounting currency (ibt-190) shall not have decimal.
+        # see also: https://docs.peppol.eu/poac/jp/pint-jp/bis/#_rounding
+        vals_list = super()._get_invoice_tax_totals_vals_list(invoice, taxes_vals)
+        for vals in vals_list:
+            vals['currency_dp'] = invoice.currency_id.decimal_places
+            for subtotal_vals in vals.get('tax_subtotal_vals', []):
+                subtotal_vals['currency_dp'] = invoice.currency_id.decimal_places
+
+        company_currency = invoice.company_id.currency_id
+        if invoice.currency_id != company_currency:
+            # if company currency != invoice currency, need to add a TaxTotal section
+            # see https://docs.peppol.eu/poac/jp/pint-jp/bis/#_tax_in_accounting_currency
+            tax_totals_vals = {
+                'currency': company_currency,
+                'currency_dp': company_currency.decimal_places,
+                'tax_amount': taxes_vals['tax_amount'],
+                'tax_subtotal_vals': [],
+            }
+            for _grouping_key, vals in taxes_vals['tax_details'].items():
+                tax_totals_vals['tax_subtotal_vals'].append({
+                    'currency': company_currency,
+                    'currency_dp': company_currency.decimal_places,
+                    'taxable_amount': vals['base_amount'],
+                    'tax_amount': vals['tax_amount'],
+                    'percent': vals['_tax_category_vals_']['percent'],
+                    'tax_category_vals': vals['_tax_category_vals_'],
+                })
+            vals_list.append(tax_totals_vals)
+        return vals_list
+
+    def _export_invoice_vals(self, invoice):
+        # EXTENDS account_edi_ubl_cii
+        vals = super()._export_invoice_vals(invoice)
+        vals['vals'].update({
+            # see https://docs.peppol.eu/poac/jp/pint-jp/bis/#profiles
+            'customization_id': 'urn:peppol:pint:billing-1@jp-1',
+            'profile_id': 'urn:peppol:bis:billing',
+        })
+        if invoice.currency_id != invoice.company_id.currency_id:
+            # see https://docs.peppol.eu/poac/jp/pint-jp/bis/#_tax_in_accounting_currency
+            vals['vals']['tax_currency_code'] = invoice.company_id.currency_id.name  # accounting currency
+        return vals

addons/l10n_jp_ubl_pint/models/res_partner.py

@@ -0,0 +1,20 @@
+from odoo import models, fields
+
+
+class ResPartner(models.Model):
+    _inherit = 'res.partner'
+
+    ubl_cii_format = fields.Selection(selection_add=[('pint_jp', "PINT Japan")])
+
+    def _get_edi_builder(self):
+        # EXTENDS 'account_edi_ubl_cii'
+        if self.ubl_cii_format == 'pint_jp':
+            return self.env['account.edi.xml.pint_jp']
+        return super()._get_edi_builder()
+
+    def _compute_ubl_cii_format(self):
+        # EXTENDS 'account_edi_ubl_cii'
+        super()._compute_ubl_cii_format()
+        for partner in self:
+            if partner.country_code == 'JP':
+                partner.ubl_cii_format = 'pint_jp'