[ADD] l10n_in_edi: Send invoice to Indian Government

New module to send invoice to Indian Government using IAP service

Task 2179664

closes odoo/odoo#79995

Related: odoo/enterprise#25899
Signed-off-by: Josse Colpaert <jco@odoo.com>

addons/l10n_in_edi/__init__.py

+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import models

addons/l10n_in_edi/__manifest__.py

+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+{
+    "name": """Indian - E-invoicing""",
+    "version": "1.03.00",
+    "icon": "/l10n_in/static/description/icon.png",
+    "category": "Accounting/Localizations/EDI",
+    "depends": [
+        "account_edi",
+        "l10n_in",
+        "iap",
+    ],
+    "description": """
+Indian - E-invoicing
+====================
+To submit invoicing through API to the government.
+We use "Tera Software Limited" as GSP
+
+Step 1: First you need to create an API username and password in the E-invoice portal.
+Step 2: Switch to company related to that GST number
+Step 3: Set that username and password in Odoo (Goto: Invoicing/Accounting -> Configration -> Settings -> Customer Invoices or find "E-invoice" in search bar)
+Step 4: Repeat steps 1,2,3 for all GSTIN you have in odoo. If you have a multi-company with the same GST number then perform step 1 for the first company only.
+
+For the creation of API username and password please ref this document: <https://service.odoo.co.in/einvoice_create_api_user>
+    """,
+    "data": [
+        "data/account_edi_data.xml",
+        "views/res_config_settings_views.xml",
+        "views/edi_pdf_report.xml",
+        "views/account_move_views.xml",
+    ],
+    "demo": [
+        "demo/demo_company.xml",
+    ],
+    "installable": True,
+    # only applicable for taxpayers turnover higher than Rs.50 crore so auto_install is False
+    "auto_install": False,
+    "application": False,
+    "license": "LGPL-3",
+}

addons/l10n_in_edi/data/account_edi_data.xml

+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="edi_in_einvoice_json_1_03" model="account.edi.format">
+        <field name="name">E-Invoice (IN)</field>
+        <field name="code">in_einvoice_1_03</field>
+    </record>
+</odoo>

addons/l10n_in_edi/demo/demo_company.xml

+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <!-- This is testing credentials -->
+    <record id="l10n_in.demo_company_in" model="res.company">
+        <field name="l10n_in_edi_username">MGSTTEST</field>
+        <field name="l10n_in_edi_password">mgst@123</field>
+    </record>
+</odoo>

addons/l10n_in_edi/models/__init__.py

+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import account_edi_format
+from . import account_move
+from . import res_company
+from . import res_config_settings

addons/l10n_in_edi/models/account_move.py

+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+import json
+
+from odoo import api, fields, models, _
+from odoo.exceptions import UserError
+
+
+class AccountMove(models.Model):
+    _inherit = "account.move"
+
+    l10n_in_edi_cancel_reason = fields.Selection(selection=[
+        ("1", "Duplicate"),
+        ("2", "Data Entry Mistake"),
+        ("3", "Order Cancelled"),
+        ("4", "Others"),
+        ], string="Cancel reason", copy=False)
+    l10n_in_edi_cancel_remarks = fields.Char("Cancel remarks", copy=False)
+    l10n_in_edi_show_cancel = fields.Boolean(compute="_compute_l10n_in_edi_show_cancel", string="E-invoice(IN) is sent?")
+
+    @api.depends('edi_document_ids')
+    def _compute_l10n_in_edi_show_cancel(self):
+        for invoice in self:
+            invoice.l10n_in_edi_show_cancel = bool(invoice.edi_document_ids.filtered(
+                lambda i: i.edi_format_id.code == "in_einvoice_1_03"
+                and i.state in ("sent", "to_cancel", "cancelled")
+            ))
+
+    def button_cancel_posted_moves(self):
+        """Mark the edi.document related to this move to be canceled."""
+        reason_and_remarks_not_set = self.env["account.move"]
+        for move in self:
+            send_l10n_in_edi = move.edi_document_ids.filtered(lambda doc: doc.edi_format_id.code == "in_einvoice_1_03")
+            # check submitted E-invoice does not have reason and remarks
+            # because it's needed to cancel E-invoice
+            if send_l10n_in_edi and (not move.l10n_in_edi_cancel_reason or not move.l10n_in_edi_cancel_remarks):
+                reason_and_remarks_not_set += move
+        if reason_and_remarks_not_set:
+            raise UserError(_(
+                "To cancel E-invoice set cancel reason and remarks at Other info tab in invoices: \n%s",
+                ("\n".join(reason_and_remarks_not_set.mapped("name"))),
+            ))
+        return super().button_cancel_posted_moves()
+
+    def _get_l10n_in_edi_response_json(self):
+        self.ensure_one()
+        l10n_in_edi = self.edi_document_ids.filtered(lambda i: i.edi_format_id.code == "in_einvoice_1_03"
+            and i.state in ("sent", "to_cancel"))
+        if l10n_in_edi:
+            return json.loads(l10n_in_edi.attachment_id.raw.decode("utf-8"))
+        else:
+            return {}

addons/l10n_in_edi/models/res_company.py

+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import fields, models
+
+
+class ResCompany(models.Model):
+    _inherit = "res.company"
+
+    l10n_in_edi_username = fields.Char("E-invoice (IN) Username", groups="base.group_system")
+    l10n_in_edi_password = fields.Char("E-invoice (IN) Password", groups="base.group_system")
+    l10n_in_edi_token = fields.Char("E-invoice (IN) Token", groups="account.group_system")
+    l10n_in_edi_token_validity = fields.Datetime("E-invoice (IN) Valid Until", groups="account.group_system")
+    l10n_in_edi_production_env = fields.Boolean(
+        string="E-invoice (IN) Is production OSE environment",
+        help="Enable the use of production credentials",
+        groups="base.group_system",
+    )
+
+    def _l10n_in_edi_token_is_valid(self):
+        self.ensure_one()
+        if self.l10n_in_edi_token and self.l10n_in_edi_token_validity > fields.Datetime.now():
+            return True
+        return False
+
+    def _neutralize(self):
+        super()._neutralize()
+        self.flush()
+        self.invalidate_cache()
+        self.env.cr.execute("UPDATE res_company SET l10n_in_edi_production_env = true")

addons/l10n_in_edi/models/res_config_settings.py

+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from odoo import models, fields
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = "res.config.settings"
+
+    l10n_in_edi_username = fields.Char("Indian EDI username", related="company_id.l10n_in_edi_username", readonly=False)
+    l10n_in_edi_password = fields.Char("Indian EDI password", related="company_id.l10n_in_edi_password", readonly=False)
+    l10n_in_edi_production_env = fields.Boolean(
+        string="Indian EDI Testing Environment",
+        related="company_id.l10n_in_edi_production_env",
+        readonly=False
+    )
+
+    def l10n_in_edi_test(self):
+        self.env["account.edi.format"]._l10n_in_edi_authenticate(self.company_id)

addons/l10n_in_edi/tests/__init__.py

+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+
+from . import test_edi_json

addons/l10n_in_edi/tests/test_edi_json.py

+# Part of Odoo. See LICENSE file for full copyright and licensing details.
+from odoo.addons.account.tests.common import AccountTestInvoicingCommon
+from odoo.tests import tagged
+
+
+@tagged("post_install_l10n", "post_install", "-at_install")
+class TestEdiJson(AccountTestInvoicingCommon):
+
+
+    @classmethod
+    def setUpClass(cls, chart_template_ref="l10n_in.indian_chart_template_standard"):
+        super().setUpClass(chart_template_ref=chart_template_ref)
+        cls.maxDiff = None
+        cls.company_data["company"].write({
+            "street": "Block no. 401",
+            "street2": "Street 2",
+            "city": "City 1",
+            "zip": "500001",
+            "state_id": cls.env.ref("base.state_in_ts").id,
+            "country_id": cls.env.ref("base.in").id,
+            "vat": "36AABCT1332L011",
+        })
+        cls.partner_a.write({
+            "vat": "36BBBFF5679L8ZR",
+            "street": "Block no. 401",
+            "street2": "Street 2",
+            "city": "City 2",
+            "zip": "500001",
+            "state_id": cls.env.ref("base.state_in_ts").id,
+            "country_id": cls.env.ref("base.in").id,
+            "l10n_in_gst_treatment": "regular",
+        })
+        cls.product_a.write({"l10n_in_hsn_code": "01111"})
+        gst_with_cess = cls.env.ref("l10n_in.%s_sgst_sale_12" % (cls.company_data["company"].id)
+            ) + cls.env.ref("l10n_in.%s_cess_5_plus_1591_sale" % (cls.company_data["company"].id))
+        product_with_cess = cls.env["product.product"].create({
+            "name": "product_with_cess",
+            "uom_id": cls.env.ref("uom.product_uom_unit").id,
+            "lst_price": 1000.0,
+            "standard_price": 800.0,
+            "property_account_income_id": cls.company_data["default_account_revenue"].id,
+            "property_account_expense_id": cls.company_data["default_account_expense"].id,
+            "taxes_id": [(6, 0, gst_with_cess.ids)],
+            "supplier_taxes_id": [(6, 0, cls.tax_purchase_a.ids)],
+            "l10n_in_hsn_code": "02222",
+        })
+        cls.invoice = cls.init_invoice("out_invoice", post=False, products=cls.product_a + product_with_cess)
+        cls.invoice.write({
+            "invoice_line_ids": [(1, l_id, {"discount": 10}) for l_id in cls.invoice.invoice_line_ids.ids]})
+        cls.invoice.action_post()
+
+    def test_edi_json(self):
+        json_value = self.env["account.edi.format"]._l10n_in_edi_generate_invoice_json(self.invoice)
+        expected = {
+            "Version": "1.1",
+            "TranDtls": {"TaxSch": "GST", "SupTyp": "B2B", "RegRev": "N", "IgstOnIntra": "N"},
+            "DocDtls": {"Typ": "INV", "No": "INV/2019/00001", "Dt": "01/01/2019"},
+            "SellerDtls": {
+                "LglNm": "company_1_data",
+                "Addr1": "Block no. 401",
+                "Addr2": "Street 2",
+                "Loc": "City 1",
+                "Pin": 500001,
+                "Stcd": "36",
+                "GSTIN": "36AABCT1332L011"},
+            "BuyerDtls": {
+                "LglNm": "partner_a",
+                "Addr1": "Block no. 401",
+                "Addr2": "Street 2",
+                "Loc": "City 2",
+                "Pin": 500001,
+                "Stcd": "36",
+                "POS": "36",
+                "GSTIN": "36BBBFF5679L8ZR"},
+            "ItemList": [
+                {
+                    "SlNo": "1", "PrdDesc": "product_a", "IsServc": "N", "HsnCd": "01111", "Qty": 1.0,
+                    "Unit": "UNT", "UnitPrice": 1000.0, "TotAmt": 1000.0, "Discount": 100.0, "AssAmt": 900.0,
+                    "GstRt": 5.0, "IgstAmt": 0.0, "CgstAmt": 22.5, "SgstAmt": 22.5, "CesRt": 0.0, "CesAmt": 0.0,
+                    "CesNonAdvlAmt": 0.0, "StateCesRt": 0.0, "StateCesAmt": 0.0, "StateCesNonAdvlAmt": 0.0,
+                    "OthChrg": 0.0, "TotItemVal": 945.0
+                },
+                {
+                    "SlNo": "2", "PrdDesc": "product_with_cess", "IsServc": "N", "HsnCd": "02222", "Qty": 1.0,
+                    "Unit": "UNT", "UnitPrice": 1000.0, "TotAmt": 1000.0, "Discount": 100.0, "AssAmt": 900.0,
+                    "GstRt": 12.0, "IgstAmt": 0.0, "CgstAmt": 54.0, "SgstAmt": 54.0, "CesRt": 5.0, "CesAmt": 45.0,
+                    "CesNonAdvlAmt": 1.59, "StateCesRt": 0.0, "StateCesAmt": 0.0, "StateCesNonAdvlAmt": 0.0,
+                    "OthChrg": 0.0, "TotItemVal": 1054.59
+                }
+            ],
+            "ValDtls": {
+                "AssVal": 1800.0, "CgstVal": 76.5, "SgstVal": 76.5, "IgstVal": 0.0, "CesVal": 46.59,
+                "StCesVal": 0.0, "RndOffAmt": 0.0, "TotInvVal": 1999.59
+            }
+        }
+        self.assertDictEqual(json_value, expected, "Indian EDI send json value is not matched")

addons/l10n_in_edi/views/account_move_views.xml

+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="invoice_form_inherit_l10n_in_edi" model="ir.ui.view">
+        <field name="name">account.move.form.inherit.l10n.in.edi</field>
+        <field name="model">account.move</field>
+        <field name="inherit_id" ref="account.view_move_form"/>
+        <field name="arch" type="xml">
+            <xpath expr="//group[@name='sale_info_group']" position="inside">
+                <field name="l10n_in_edi_show_cancel" invisible="1"/>
+                <field name="l10n_in_edi_cancel_reason" attrs="{'invisible': ['|', '|', ('country_code', '!=', 'IN'), ('state', '!=', 'posted'), ('l10n_in_edi_show_cancel', '!=', True)]}"/>
+                <field name="l10n_in_edi_cancel_remarks" attrs="{'invisible': ['|', '|', ('country_code', '!=', 'IN'), ('state', '!=', 'posted'), ('l10n_in_edi_show_cancel', '!=', True)]}"/>
+            </xpath>
+        </field>
+    </record>
+</odoo>

addons/l10n_in_edi/views/edi_pdf_report.xml

+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <template id="l10n_in_einvoice_report_invoice_document_inherit" inherit_id="account.report_invoice_document">
+        <xpath expr="//div[@id='informations']" position="before">
+            <t t-set="l10n_in_einvoice_json" t-value="o._get_l10n_in_edi_response_json()"/>
+            <div id="l10n_in_einvoice_informations_inr" class="row mt-4 mb-4">
+                <div class="col-auto col-3 mw-100 mb-2" t-if="l10n_in_einvoice_json" name="irn">
+                    <strong>IRN:</strong>
+                    <p class="m-0" t-esc="l10n_in_einvoice_json['Irn']"/>
+                </div>
+            </div>
+            <div id="l10n_in_einvoice_informations_other" class="row mt-4 mb-4">
+                <div class="col-auto col-3 mw-100 mb-2" t-if="l10n_in_einvoice_json" name="ack_no">
+                    <strong>Ack. No:</strong>
+                    <p class="m-0" t-esc="l10n_in_einvoice_json['AckNo']"/>
+                </div>
+                <div class="col-auto col-3 mw-100 mb-2" t-if="l10n_in_einvoice_json" name="ack_date">
+                    <strong>Ack. Date:</strong>
+                    <p class="m-0" t-esc="l10n_in_einvoice_json['AckDt']"/>
+                </div>
+            </div>
+        </xpath>
+        <xpath expr="//div[@id='qrcode']" position="after">
+            <p t-if="l10n_in_einvoice_json">
+                <strong class="text-center">Scan me with E-invoice app.</strong><br/><br/>
+                <img t-att-src="'/report/barcode/?barcode_type=%s&amp;value=%s&amp;width=%s&amp;height=%s' %
+                ('QR', l10n_in_einvoice_json['SignedQRCode'], 200, 200)"/>
+            </p>
+        </xpath>
+    </template>
+</odoo>

addons/l10n_in_edi/views/res_config_settings_views.xml

+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+    <record id="res_config_settings_view_form_inherit_l10n_in_edi" model="ir.ui.view">
+        <field name="name">res.config.settings.form.inherit.l10n_in_edi</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="account.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <div data-key="account" position="inside">
+                <h2 attrs="{'invisible': [('country_code', '!=', 'IN')]}">Indian Electronic Invoicing</h2>
+                <div class='row mt16 o_settings_container' name="l10n_in_edi_iap" attrs="{'invisible': [('country_code', '!=', 'IN')]}">
+                    <div class="col-12 col-lg-6 o_setting_box" id="gsp_setting">
+                        <div class="o_setting_right_pane">
+                            <t class="o_form_label">Setup E-invoice</t>
+                            <span class="fa fa-lg fa-building-o" title="Values set here are company-specific." aria-label="Values set here are company-specific." groups="base.group_multi_company" role="img"/>
+                            <div class="text-muted">
+                                Setup E-invoice Service for this company
+                            </div>
+                            <div class="content-group">
+                                <div class="mt16 row">
+                                    <label for="l10n_in_edi_username" string="Username" class="col-3 col-lg-3 o_light_label"/>
+                                    <field name="l10n_in_edi_username"  nolabel="1"/>
+                                    <label for="l10n_in_edi_password" string="Password" class="col-3 col-lg-3 o_light_label" />
+                                    <field name="l10n_in_edi_password" password="True" nolabel="1"/>
+                                    <label for="l10n_in_edi_production_env" string="Production Environment" class="col-3 col-lg-3 o_light_label"/>
+                                    <field name="l10n_in_edi_production_env" nolabel="1"/>
+                                    <div class="text-muted">
+                                        Only check if you are in production.
+                                    </div>
+                                </div>
+                            </div>
+                            <div class='mt8'>
+                                <button name="l10n_in_edi_test" icon="fa-arrow-right" type="object" string="Verify Username and Password" class="btn-link"/>
+                            </div>
+                        </div>
+                    </div>
+                </div>
+            </div>
+        </field>
+    </record>
+</odoo>