60 lines
3.3 KiB
Python
60 lines
3.3 KiB
Python
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# -*- coding: utf-8 -*-
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# Part of Odoo. See LICENSE file for full copyright and licensing details.
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import base64
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from odoo import api, fields, models, _
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from odoo.exceptions import UserError
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from odoo.tools import float_repr
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class AccountMove(models.Model):
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_inherit = 'account.move'
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l10n_sa_delivery_date = fields.Date(string='Delivery Date', default=fields.Date.context_today, copy=False,
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readonly=True, states={'draft': [('readonly', False)]},
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help="In case of multiple deliveries, you should take the date of the latest one. ")
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l10n_sa_show_delivery_date = fields.Boolean(compute='_compute_show_delivery_date')
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l10n_sa_qr_code_str = fields.Char(string='Zatka QR Code', compute='_compute_qr_code_str')
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l10n_sa_confirmation_datetime = fields.Datetime(string='Confirmation Date', readonly=True, copy=False)
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@api.depends('country_code', 'move_type')
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def _compute_show_delivery_date(self):
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for move in self:
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move.l10n_sa_show_delivery_date = move.country_code == 'SA' and move.move_type in ('out_invoice', 'out_refund')
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@api.depends('amount_total_signed', 'amount_tax_signed', 'l10n_sa_confirmation_datetime', 'company_id', 'company_id.vat')
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def _compute_qr_code_str(self):
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""" Generate the qr code for Saudi e-invoicing. Specs are available at the following link at page 23
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https://zatca.gov.sa/ar/E-Invoicing/SystemsDevelopers/Documents/20210528_ZATCA_Electronic_Invoice_Security_Features_Implementation_Standards_vShared.pdf
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"""
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def get_qr_encoding(tag, field):
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company_name_byte_array = field.encode()
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company_name_tag_encoding = tag.to_bytes(length=1, byteorder='big')
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company_name_length_encoding = len(company_name_byte_array).to_bytes(length=1, byteorder='big')
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return company_name_tag_encoding + company_name_length_encoding + company_name_byte_array
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for record in self:
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qr_code_str = ''
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if record.l10n_sa_confirmation_datetime and record.company_id.vat:
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seller_name_enc = get_qr_encoding(1, record.company_id.display_name)
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company_vat_enc = get_qr_encoding(2, record.company_id.vat)
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time_sa = fields.Datetime.context_timestamp(self.with_context(tz='Asia/Riyadh'), record.l10n_sa_confirmation_datetime)
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timestamp_enc = get_qr_encoding(3, time_sa.isoformat())
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invoice_total_enc = get_qr_encoding(4, float_repr(abs(record.amount_total_signed), 2))
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total_vat_enc = get_qr_encoding(5, float_repr(abs(record.amount_tax_signed), 2))
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str_to_encode = seller_name_enc + company_vat_enc + timestamp_enc + invoice_total_enc + total_vat_enc
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qr_code_str = base64.b64encode(str_to_encode).decode()
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record.l10n_sa_qr_code_str = qr_code_str
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def _post(self, soft=True):
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res = super()._post(soft)
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for record in self:
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if record.country_code == 'SA' and record.move_type in ('out_invoice', 'out_refund'):
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if not record.l10n_sa_show_delivery_date:
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raise UserError(_('Delivery Date cannot be empty'))
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self.write({
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'l10n_sa_confirmation_datetime': fields.Datetime.now()
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})
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return res
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