Initial commit: L10N_Me Africa packages

odoo-bringout-oca-ocb-l10n_sa/l10n_sa/models/account_move.py

@@ -0,0 +1,86 @@
+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+import base64
+
+from odoo import _, api, fields, models
+from odoo.exceptions import UserError
+from odoo.tools import float_repr, format_datetime
+
+
+class AccountMove(models.Model):
+    _inherit = 'account.move'
+
+    l10n_sa_delivery_date = fields.Date(string='Supply Date',
+                                        default=fields.Date.context_today,
+                                        copy=False,
+                                        readonly=True,
+                                        states={'draft': [('readonly', False)]},
+                                        help="""Date when the supply of the goods and services is performed.
+                                        You can set this date to when you want ZATCA to recognize the VAT Due Liability as ZATCA will consider the earlier of this date and the Issue Date.
+                                        In case of multiple deliveries, you should take the date of the latest one.""")
+    l10n_sa_show_delivery_date = fields.Boolean(compute='_compute_show_delivery_date')
+    l10n_sa_qr_code_str = fields.Char(string='Zatka QR Code', compute='_compute_qr_code_str')
+    l10n_sa_confirmation_datetime = fields.Datetime(string='Confirmation Date',
+                                                    readonly=True,
+                                                    copy=False,
+                                                    help="""Date when the invoice is confirmed and posted.
+                                                    In other words, it is the date on which the invoice is generated as final document (after securing all internal approvals).""")
+
+    @api.depends('country_code', 'move_type')
+    def _compute_show_delivery_date(self):
+        for move in self:
+            move.l10n_sa_show_delivery_date = move.country_code == 'SA' and move.move_type in ('out_invoice', 'out_refund')
+
+    @api.depends('amount_total_signed', 'amount_tax_signed', 'l10n_sa_confirmation_datetime', 'company_id', 'company_id.vat')
+    def _compute_qr_code_str(self):
+        """ Generate the qr code for Saudi e-invoicing. Specs are available at the following link at page 23
+        https://zatca.gov.sa/ar/E-Invoicing/SystemsDevelopers/Documents/20210528_ZATCA_Electronic_Invoice_Security_Features_Implementation_Standards_vShared.pdf
+        """
+        def get_qr_encoding(tag, field):
+            company_name_byte_array = field.encode()
+            company_name_tag_encoding = tag.to_bytes(length=1, byteorder='big')
+            company_name_length_encoding = len(company_name_byte_array).to_bytes(length=1, byteorder='big')
+            return company_name_tag_encoding + company_name_length_encoding + company_name_byte_array
+
+        for record in self:
+            qr_code_str = ''
+            if record.l10n_sa_confirmation_datetime and record.company_id.vat:
+                seller_name_enc = get_qr_encoding(1, record.company_id.display_name)
+                company_vat_enc = get_qr_encoding(2, record.company_id.vat)
+                time_sa = fields.Datetime.context_timestamp(self.with_context(tz='Asia/Riyadh'), record.l10n_sa_confirmation_datetime)
+                timestamp_enc = get_qr_encoding(3, time_sa.isoformat())
+                totals = record._get_l10n_sa_totals()
+                invoice_total_enc = get_qr_encoding(4, float_repr(abs(totals['total_amount']), 2))
+                total_vat_enc = get_qr_encoding(5, float_repr(abs(totals['total_tax']), 2))
+
+                str_to_encode = seller_name_enc + company_vat_enc + timestamp_enc + invoice_total_enc + total_vat_enc
+                qr_code_str = base64.b64encode(str_to_encode).decode()
+            record.l10n_sa_qr_code_str = qr_code_str
+
+    def _post(self, soft=True):
+        res = super()._post(soft)
+        for record in self:
+            if record.country_code == 'SA' and record.move_type in ('out_invoice', 'out_refund'):
+                if not record.l10n_sa_show_delivery_date:
+                    raise UserError(_('Delivery Date cannot be empty'))
+                if not record.l10n_sa_confirmation_datetime:
+                    record.l10n_sa_confirmation_datetime = fields.Datetime.now()
+        return res
+
+    def get_l10n_sa_confirmation_datetime_sa_tz(self):
+        self.ensure_one()
+        return format_datetime(self.env, self.l10n_sa_confirmation_datetime, tz='Asia/Riyadh', dt_format='Y-MM-dd\nHH:mm:ss')
+
+    def _l10n_sa_reset_confirmation_datetime(self):
+        self.filtered(lambda m: m.country_code == 'SA').l10n_sa_confirmation_datetime = False
+
+    def button_draft(self):
+        self._l10n_sa_reset_confirmation_datetime()
+        super().button_draft()
+
+    def _get_l10n_sa_totals(self):
+        self.ensure_one()
+        return {
+            'total_amount': self.amount_total_signed,
+            'total_tax': self.amount_tax_signed,
+        }