1170 lines
39 KiB
Python
1170 lines
39 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2020, Frappe Technologies Pvt. Ltd. and contributors
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# For license information, please see license.txt
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from __future__ import unicode_literals
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import base64
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import io
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import json
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import os
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import re
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import sys
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import traceback
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import frappe
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import jwt
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import six
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from frappe import _, bold
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from frappe.core.page.background_jobs.background_jobs import get_info
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from frappe.integrations.utils import make_get_request, make_post_request
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from frappe.utils.background_jobs import enqueue
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from frappe.utils.data import (
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add_to_date,
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cint,
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cstr,
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flt,
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format_date,
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get_link_to_form,
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getdate,
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now_datetime,
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time_diff_in_hours,
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time_diff_in_seconds,
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)
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from frappe.utils.scheduler import is_scheduler_inactive
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from pyqrcode import create as qrcreate
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from erpnext.regional.india.utils import get_gst_accounts, get_place_of_supply
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@frappe.whitelist()
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def validate_eligibility(doc):
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if isinstance(doc, six.string_types):
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doc = json.loads(doc)
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invalid_doctype = doc.get('doctype') != 'Sales Invoice'
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if invalid_doctype:
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return False
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einvoicing_enabled = cint(frappe.db.get_single_value('E Invoice Settings', 'enable'))
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if not einvoicing_enabled:
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return False
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einvoicing_eligible_from = frappe.db.get_single_value('E Invoice Settings', 'applicable_from') or '2021-04-01'
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if getdate(doc.get('posting_date')) < getdate(einvoicing_eligible_from):
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return False
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invalid_company = not frappe.db.get_value('E Invoice User', { 'company': doc.get('company') })
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invalid_supply_type = doc.get('gst_category') not in ['Registered Regular', 'SEZ', 'Overseas', 'Deemed Export']
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company_transaction = doc.get('billing_address_gstin') == doc.get('company_gstin')
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# if export invoice, then taxes can be empty
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# invoice can only be ineligible if no taxes applied and is not an export invoice
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no_taxes_applied = not doc.get('taxes') and not doc.get('gst_category') == 'Overseas'
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has_non_gst_item = any(d for d in doc.get('items', []) if d.get('is_non_gst'))
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if invalid_company or invalid_supply_type or company_transaction or no_taxes_applied or has_non_gst_item:
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return False
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return True
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def validate_einvoice_fields(doc):
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invoice_eligible = validate_eligibility(doc)
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if not invoice_eligible:
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return
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if doc.docstatus == 0 and doc._action == 'save':
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if doc.irn:
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frappe.throw(_('You cannot edit the invoice after generating IRN'), title=_('Edit Not Allowed'))
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if len(doc.name) > 16:
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raise_document_name_too_long_error()
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doc.einvoice_status = 'Pending'
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elif doc.docstatus == 1 and doc._action == 'submit' and not doc.irn:
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frappe.throw(_('You must generate IRN before submitting the document.'), title=_('Missing IRN'))
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elif doc.irn and doc.docstatus == 2 and doc._action == 'cancel' and not doc.irn_cancelled:
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frappe.throw(_('You must cancel IRN before cancelling the document.'), title=_('Cancel Not Allowed'))
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def raise_document_name_too_long_error():
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title = _('Document ID Too Long')
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msg = _('As you have E-Invoicing enabled, to be able to generate IRN for this invoice')
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msg += ', '
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msg += _('document id {} exceed 16 letters.').format(bold(_('should not')))
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msg += '<br><br>'
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msg += _('You must {} your {} in order to have document id of {} length 16.').format(
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bold(_('modify')), bold(_('naming series')), bold(_('maximum'))
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)
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msg += _('Please account for ammended documents too.')
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frappe.throw(msg, title=title)
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def read_json(name):
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file_path = os.path.join(os.path.dirname(__file__), '{name}.json'.format(name=name))
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with open(file_path, 'r') as f:
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return cstr(f.read())
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def get_transaction_details(invoice):
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supply_type = ''
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if invoice.gst_category == 'Registered Regular': supply_type = 'B2B'
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elif invoice.gst_category == 'SEZ': supply_type = 'SEZWOP'
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elif invoice.gst_category == 'Overseas': supply_type = 'EXPWOP'
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elif invoice.gst_category == 'Deemed Export': supply_type = 'DEXP'
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if not supply_type:
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rr, sez, overseas, export = bold('Registered Regular'), bold('SEZ'), bold('Overseas'), bold('Deemed Export')
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frappe.throw(_('GST category should be one of {}, {}, {}, {}').format(rr, sez, overseas, export),
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title=_('Invalid Supply Type'))
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return frappe._dict(dict(
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tax_scheme='GST',
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supply_type=supply_type,
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reverse_charge=invoice.reverse_charge
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))
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def get_doc_details(invoice):
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if getdate(invoice.posting_date) < getdate('2021-01-01'):
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frappe.throw(_('IRN generation is not allowed for invoices dated before 1st Jan 2021'), title=_('Not Allowed'))
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invoice_type = 'CRN' if invoice.is_return else 'INV'
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invoice_name = invoice.name
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invoice_date = format_date(invoice.posting_date, 'dd/mm/yyyy')
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return frappe._dict(dict(
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invoice_type=invoice_type,
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invoice_name=invoice_name,
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invoice_date=invoice_date
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))
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def validate_address_fields(address, skip_gstin_validation):
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if ((not address.gstin and not skip_gstin_validation)
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or not address.city
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or not address.pincode
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or not address.address_title
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or not address.address_line1
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or not address.gst_state_number):
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frappe.throw(
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msg=_('Address Lines, City, Pincode, GSTIN are mandatory for address {}. Please set them and try again.').format(address.name),
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title=_('Missing Address Fields')
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)
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if address.address_line2 and len(address.address_line2) < 2:
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# to prevent "The field Address 2 must be a string with a minimum length of 3 and a maximum length of 100"
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address.address_line2 = ""
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def get_party_details(address_name, skip_gstin_validation=False):
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addr = frappe.get_doc('Address', address_name)
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validate_address_fields(addr, skip_gstin_validation)
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if addr.gst_state_number == 97:
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# according to einvoice standard
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addr.pincode = 999999
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party_address_details = frappe._dict(dict(
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legal_name=sanitize_for_json(addr.address_title),
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location=sanitize_for_json(addr.city),
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pincode=addr.pincode, gstin=addr.gstin,
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state_code=addr.gst_state_number,
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address_line1=sanitize_for_json(addr.address_line1),
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address_line2=sanitize_for_json(addr.address_line2)
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))
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return party_address_details
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def get_overseas_address_details(address_name):
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address_title, address_line1, address_line2, city = frappe.db.get_value(
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'Address', address_name, ['address_title', 'address_line1', 'address_line2', 'city']
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)
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if not address_title or not address_line1 or not city:
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frappe.throw(
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msg=_('Address lines and city is mandatory for address {}. Please set them and try again.').format(
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get_link_to_form('Address', address_name)
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),
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title=_('Missing Address Fields')
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)
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return frappe._dict(dict(
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gstin='URP',
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legal_name=sanitize_for_json(address_title),
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location=city,
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address_line1=sanitize_for_json(address_line1),
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address_line2=sanitize_for_json(address_line2),
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pincode=999999, state_code=96, place_of_supply=96
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))
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def get_item_list(invoice):
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item_list = []
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for d in invoice.items:
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einvoice_item_schema = read_json('einv_item_template')
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item = frappe._dict({})
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item.update(d.as_dict())
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item.sr_no = d.idx
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item.description = sanitize_for_json(d.item_name)
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item.qty = abs(item.qty)
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if flt(item.qty) != 0.0:
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item.unit_rate = abs(item.taxable_value / item.qty)
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else:
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item.unit_rate = abs(item.taxable_value)
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item.gross_amount = abs(item.taxable_value)
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item.taxable_value = abs(item.taxable_value)
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item.discount_amount = 0
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item.batch_expiry_date = frappe.db.get_value('Batch', d.batch_no, 'expiry_date') if d.batch_no else None
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item.batch_expiry_date = format_date(item.batch_expiry_date, 'dd/mm/yyyy') if item.batch_expiry_date else None
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item.is_service_item = 'Y' if item.gst_hsn_code and item.gst_hsn_code[:2] == "99" else 'N'
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item.serial_no = ""
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item = update_item_taxes(invoice, item)
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item.total_value = abs(
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item.taxable_value + item.igst_amount + item.sgst_amount +
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item.cgst_amount + item.cess_amount + item.cess_nadv_amount + item.other_charges
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)
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einv_item = einvoice_item_schema.format(item=item)
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item_list.append(einv_item)
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return ', '.join(item_list)
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def update_item_taxes(invoice, item):
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gst_accounts = get_gst_accounts(invoice.company)
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gst_accounts_list = [d for accounts in gst_accounts.values() for d in accounts if d]
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for attr in [
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'tax_rate', 'cess_rate', 'cess_nadv_amount',
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'cgst_amount', 'sgst_amount', 'igst_amount',
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'cess_amount', 'cess_nadv_amount', 'other_charges'
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]:
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item[attr] = 0
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for t in invoice.taxes:
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is_applicable = t.tax_amount and t.account_head in gst_accounts_list
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if is_applicable:
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# this contains item wise tax rate & tax amount (incl. discount)
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item_tax_detail = json.loads(t.item_wise_tax_detail).get(item.item_code or item.item_name)
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item_tax_rate = item_tax_detail[0]
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# item tax amount excluding discount amount
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item_tax_amount = (item_tax_rate / 100) * item.taxable_value
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if t.account_head in gst_accounts.cess_account:
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item_tax_amount_after_discount = item_tax_detail[1]
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if t.charge_type == 'On Item Quantity':
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item.cess_nadv_amount += abs(item_tax_amount_after_discount)
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else:
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item.cess_rate += item_tax_rate
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item.cess_amount += abs(item_tax_amount_after_discount)
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for tax_type in ['igst', 'cgst', 'sgst']:
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if t.account_head in gst_accounts[f'{tax_type}_account']:
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item.tax_rate += item_tax_rate
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item[f'{tax_type}_amount'] += abs(item_tax_amount)
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else:
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# TODO: other charges per item
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pass
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return item
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def get_invoice_value_details(invoice):
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invoice_value_details = frappe._dict(dict())
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invoice_value_details.base_total = abs(sum([i.taxable_value for i in invoice.get('items')]))
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invoice_value_details.invoice_discount_amt = 0
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invoice_value_details.round_off = invoice.base_rounding_adjustment
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invoice_value_details.base_grand_total = abs(invoice.base_rounded_total) or abs(invoice.base_grand_total)
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invoice_value_details.grand_total = abs(invoice.rounded_total) or abs(invoice.grand_total)
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invoice_value_details = update_invoice_taxes(invoice, invoice_value_details)
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return invoice_value_details
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def update_invoice_taxes(invoice, invoice_value_details):
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gst_accounts = get_gst_accounts(invoice.company)
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gst_accounts_list = [d for accounts in gst_accounts.values() for d in accounts if d]
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invoice_value_details.total_cgst_amt = 0
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invoice_value_details.total_sgst_amt = 0
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invoice_value_details.total_igst_amt = 0
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invoice_value_details.total_cess_amt = 0
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invoice_value_details.total_other_charges = 0
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considered_rows = []
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for t in invoice.taxes:
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tax_amount = t.base_tax_amount_after_discount_amount
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if t.account_head in gst_accounts_list:
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if t.account_head in gst_accounts.cess_account:
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# using after discount amt since item also uses after discount amt for cess calc
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invoice_value_details.total_cess_amt += abs(t.base_tax_amount_after_discount_amount)
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for tax_type in ['igst', 'cgst', 'sgst']:
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if t.account_head in gst_accounts[f'{tax_type}_account']:
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invoice_value_details[f'total_{tax_type}_amt'] += abs(tax_amount)
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update_other_charges(t, invoice_value_details, gst_accounts_list, invoice, considered_rows)
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else:
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invoice_value_details.total_other_charges += abs(tax_amount)
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return invoice_value_details
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def update_other_charges(tax_row, invoice_value_details, gst_accounts_list, invoice, considered_rows):
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prev_row_id = cint(tax_row.row_id) - 1
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if tax_row.account_head in gst_accounts_list and prev_row_id not in considered_rows:
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if tax_row.charge_type == 'On Previous Row Amount':
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amount = invoice.get('taxes')[prev_row_id].tax_amount_after_discount_amount
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invoice_value_details.total_other_charges -= abs(amount)
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considered_rows.append(prev_row_id)
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if tax_row.charge_type == 'On Previous Row Total':
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amount = invoice.get('taxes')[prev_row_id].base_total - invoice.base_net_total
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invoice_value_details.total_other_charges -= abs(amount)
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considered_rows.append(prev_row_id)
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def get_payment_details(invoice):
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payee_name = invoice.company
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mode_of_payment = ', '.join([d.mode_of_payment for d in invoice.payments])
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paid_amount = invoice.base_paid_amount
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outstanding_amount = invoice.outstanding_amount
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return frappe._dict(dict(
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payee_name=payee_name, mode_of_payment=mode_of_payment,
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paid_amount=paid_amount, outstanding_amount=outstanding_amount
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))
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def get_return_doc_reference(invoice):
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invoice_date = frappe.db.get_value('Sales Invoice', invoice.return_against, 'posting_date')
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return frappe._dict(dict(
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invoice_name=invoice.return_against, invoice_date=format_date(invoice_date, 'dd/mm/yyyy')
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))
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def get_eway_bill_details(invoice):
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if invoice.is_return:
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frappe.throw(_('E-Way Bill cannot be generated for Credit Notes & Debit Notes. Please clear fields in the Transporter Section of the invoice.'),
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title=_('Invalid Fields'))
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mode_of_transport = { '': '', 'Road': '1', 'Air': '2', 'Rail': '3', 'Ship': '4' }
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vehicle_type = { 'Regular': 'R', 'Over Dimensional Cargo (ODC)': 'O' }
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return frappe._dict(dict(
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gstin=invoice.gst_transporter_id,
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name=invoice.transporter_name,
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mode_of_transport=mode_of_transport[invoice.mode_of_transport],
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distance=invoice.distance or 0,
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document_name=invoice.lr_no,
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document_date=format_date(invoice.lr_date, 'dd/mm/yyyy'),
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vehicle_no=invoice.vehicle_no,
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vehicle_type=vehicle_type[invoice.gst_vehicle_type]
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))
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def validate_mandatory_fields(invoice):
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if not invoice.company_address:
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frappe.throw(
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_('Company Address is mandatory to fetch company GSTIN details. Please set Company Address and try again.'),
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title=_('Missing Fields')
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)
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if not invoice.customer_address:
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frappe.throw(
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_('Customer Address is mandatory to fetch customer GSTIN details. Please set Company Address and try again.'),
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title=_('Missing Fields')
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)
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if not frappe.db.get_value('Address', invoice.company_address, 'gstin'):
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frappe.throw(
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_('GSTIN is mandatory to fetch company GSTIN details. Please enter GSTIN in selected company address.'),
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title=_('Missing Fields')
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)
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if invoice.gst_category != 'Overseas' and not frappe.db.get_value('Address', invoice.customer_address, 'gstin'):
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frappe.throw(
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_('GSTIN is mandatory to fetch customer GSTIN details. Please enter GSTIN in selected customer address.'),
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title=_('Missing Fields')
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)
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def validate_totals(einvoice):
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item_list = einvoice['ItemList']
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value_details = einvoice['ValDtls']
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total_item_ass_value = 0
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total_item_cgst_value = 0
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total_item_sgst_value = 0
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total_item_igst_value = 0
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total_item_value = 0
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for item in item_list:
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total_item_ass_value += flt(item['AssAmt'])
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total_item_cgst_value += flt(item['CgstAmt'])
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total_item_sgst_value += flt(item['SgstAmt'])
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total_item_igst_value += flt(item['IgstAmt'])
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total_item_value += flt(item['TotItemVal'])
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if abs(flt(item['AssAmt']) * flt(item['GstRt']) / 100) - (flt(item['CgstAmt']) + flt(item['SgstAmt']) + flt(item['IgstAmt'])) > 1:
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frappe.throw(_('Row #{}: GST rate is invalid. Please remove tax rows with zero tax amount from taxes table.').format(item.idx))
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if abs(flt(value_details['AssVal']) - total_item_ass_value) > 1:
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frappe.throw(_('Total Taxable Value of the items is not equal to the Invoice Net Total. Please check item taxes / discounts for any correction.'))
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if abs(flt(value_details['CgstVal']) + flt(value_details['SgstVal']) - total_item_cgst_value - total_item_sgst_value) > 1:
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frappe.throw(_('CGST + SGST value of the items is not equal to total CGST + SGST value. Please review taxes for any correction.'))
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if abs(flt(value_details['IgstVal']) - total_item_igst_value) > 1:
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frappe.throw(_('IGST value of all items is not equal to total IGST value. Please review taxes for any correction.'))
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if abs(
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flt(value_details['TotInvVal']) + flt(value_details['Discount']) -
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flt(value_details['OthChrg']) - flt(value_details['RndOffAmt']) -
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total_item_value
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) > 1:
|
|
frappe.throw(_('Total Value of the items is not equal to the Invoice Grand Total. Please check item taxes / discounts for any correction.'))
|
|
|
|
calculated_invoice_value = \
|
|
flt(value_details['AssVal']) + flt(value_details['CgstVal']) \
|
|
+ flt(value_details['SgstVal']) + flt(value_details['IgstVal']) \
|
|
+ flt(value_details['OthChrg']) + flt(value_details['RndOffAmt']) - flt(value_details['Discount'])
|
|
|
|
if abs(flt(value_details['TotInvVal']) - calculated_invoice_value) > 1:
|
|
frappe.throw(_('Total Item Value + Taxes - Discount is not equal to the Invoice Grand Total. Please check taxes / discounts for any correction.'))
|
|
|
|
def make_einvoice(invoice):
|
|
validate_mandatory_fields(invoice)
|
|
|
|
schema = read_json('einv_template')
|
|
|
|
transaction_details = get_transaction_details(invoice)
|
|
item_list = get_item_list(invoice)
|
|
doc_details = get_doc_details(invoice)
|
|
invoice_value_details = get_invoice_value_details(invoice)
|
|
seller_details = get_party_details(invoice.company_address)
|
|
|
|
if invoice.gst_category == 'Overseas':
|
|
buyer_details = get_overseas_address_details(invoice.customer_address)
|
|
else:
|
|
buyer_details = get_party_details(invoice.customer_address)
|
|
place_of_supply = get_place_of_supply(invoice, invoice.doctype)
|
|
if place_of_supply:
|
|
place_of_supply = place_of_supply.split('-')[0]
|
|
else:
|
|
place_of_supply = sanitize_for_json(invoice.billing_address_gstin)[:2]
|
|
buyer_details.update(dict(place_of_supply=place_of_supply))
|
|
|
|
seller_details.update(dict(legal_name=invoice.company))
|
|
buyer_details.update(dict(legal_name=invoice.customer_name or invoice.customer))
|
|
|
|
shipping_details = payment_details = prev_doc_details = eway_bill_details = frappe._dict({})
|
|
if invoice.shipping_address_name and invoice.customer_address != invoice.shipping_address_name:
|
|
if invoice.gst_category == 'Overseas':
|
|
shipping_details = get_overseas_address_details(invoice.shipping_address_name)
|
|
else:
|
|
shipping_details = get_party_details(invoice.shipping_address_name, skip_gstin_validation=True)
|
|
|
|
dispatch_details = frappe._dict({})
|
|
if invoice.dispatch_address_name:
|
|
dispatch_details = get_party_details(invoice.dispatch_address_name, skip_gstin_validation=True)
|
|
|
|
if invoice.is_pos and invoice.base_paid_amount:
|
|
payment_details = get_payment_details(invoice)
|
|
|
|
if invoice.is_return and invoice.return_against:
|
|
prev_doc_details = get_return_doc_reference(invoice)
|
|
|
|
if invoice.transporter and not invoice.is_return:
|
|
eway_bill_details = get_eway_bill_details(invoice)
|
|
|
|
# not yet implemented
|
|
period_details = export_details = frappe._dict({})
|
|
|
|
einvoice = schema.format(
|
|
transaction_details=transaction_details, doc_details=doc_details, dispatch_details=dispatch_details,
|
|
seller_details=seller_details, buyer_details=buyer_details, shipping_details=shipping_details,
|
|
item_list=item_list, invoice_value_details=invoice_value_details, payment_details=payment_details,
|
|
period_details=period_details, prev_doc_details=prev_doc_details,
|
|
export_details=export_details, eway_bill_details=eway_bill_details
|
|
)
|
|
|
|
try:
|
|
einvoice = safe_json_load(einvoice)
|
|
einvoice = santize_einvoice_fields(einvoice)
|
|
except Exception:
|
|
show_link_to_error_log(invoice, einvoice)
|
|
|
|
try:
|
|
validate_totals(einvoice)
|
|
except Exception:
|
|
log_error(einvoice)
|
|
raise
|
|
|
|
return einvoice
|
|
|
|
def show_link_to_error_log(invoice, einvoice):
|
|
err_log = log_error(einvoice)
|
|
link_to_error_log = get_link_to_form('Error Log', err_log.name, 'Error Log')
|
|
frappe.throw(
|
|
_('An error occurred while creating e-invoice for {}. Please check {} for more information.').format(
|
|
invoice.name, link_to_error_log),
|
|
title=_('E Invoice Creation Failed')
|
|
)
|
|
|
|
def log_error(data=None):
|
|
if isinstance(data, six.string_types):
|
|
data = json.loads(data)
|
|
|
|
seperator = "--" * 50
|
|
err_tb = traceback.format_exc()
|
|
err_msg = str(sys.exc_info()[1])
|
|
data = json.dumps(data, indent=4)
|
|
|
|
message = "\n".join([
|
|
"Error", err_msg, seperator,
|
|
"Data:", data, seperator,
|
|
"Exception:", err_tb
|
|
])
|
|
return frappe.log_error(title=_('E Invoice Request Failed'), message=message)
|
|
|
|
def santize_einvoice_fields(einvoice):
|
|
int_fields = ["Pin","Distance","CrDay"]
|
|
float_fields = ["Qty","FreeQty","UnitPrice","TotAmt","Discount","PreTaxVal","AssAmt","GstRt","IgstAmt","CgstAmt","SgstAmt","CesRt","CesAmt","CesNonAdvlAmt","StateCesRt","StateCesAmt","StateCesNonAdvlAmt","OthChrg","TotItemVal","AssVal","CgstVal","SgstVal","IgstVal","CesVal","StCesVal","Discount","OthChrg","RndOffAmt","TotInvVal","TotInvValFc","PaidAmt","PaymtDue","ExpDuty",]
|
|
copy = einvoice.copy()
|
|
for key, value in copy.items():
|
|
if isinstance(value, list):
|
|
for idx, d in enumerate(value):
|
|
santized_dict = santize_einvoice_fields(d)
|
|
if santized_dict:
|
|
einvoice[key][idx] = santized_dict
|
|
else:
|
|
einvoice[key].pop(idx)
|
|
|
|
if not einvoice[key]:
|
|
einvoice.pop(key, None)
|
|
|
|
elif isinstance(value, dict):
|
|
santized_dict = santize_einvoice_fields(value)
|
|
if santized_dict:
|
|
einvoice[key] = santized_dict
|
|
else:
|
|
einvoice.pop(key, None)
|
|
|
|
elif not value or value == "None":
|
|
einvoice.pop(key, None)
|
|
|
|
elif key in float_fields:
|
|
einvoice[key] = flt(value, 2)
|
|
|
|
elif key in int_fields:
|
|
einvoice[key] = cint(value)
|
|
|
|
return einvoice
|
|
|
|
def safe_json_load(json_string):
|
|
try:
|
|
return json.loads(json_string)
|
|
except json.JSONDecodeError as e:
|
|
# print a snippet of 40 characters around the location where error occured
|
|
pos = e.pos
|
|
start, end = max(0, pos-20), min(len(json_string)-1, pos+20)
|
|
snippet = json_string[start:end]
|
|
frappe.throw(_("Error in input data. Please check for any special characters near following input: <br> {}").format(snippet))
|
|
|
|
class RequestFailed(Exception):
|
|
pass
|
|
class CancellationNotAllowed(Exception):
|
|
pass
|
|
|
|
class GSPConnector():
|
|
def __init__(self, doctype=None, docname=None):
|
|
self.doctype = doctype
|
|
self.docname = docname
|
|
|
|
self.set_invoice()
|
|
self.set_credentials()
|
|
|
|
# authenticate url is same for sandbox & live
|
|
self.authenticate_url = 'https://gsp.adaequare.com/gsp/authenticate?grant_type=token'
|
|
self.base_url = 'https://gsp.adaequare.com' if not self.e_invoice_settings.sandbox_mode else 'https://gsp.adaequare.com/test'
|
|
|
|
self.cancel_irn_url = self.base_url + '/enriched/ei/api/invoice/cancel'
|
|
self.irn_details_url = self.base_url + '/enriched/ei/api/invoice/irn'
|
|
self.generate_irn_url = self.base_url + '/enriched/ei/api/invoice'
|
|
self.gstin_details_url = self.base_url + '/enriched/ei/api/master/gstin'
|
|
self.cancel_ewaybill_url = self.base_url + '/enriched/ewb/ewayapi?action=CANEWB'
|
|
self.generate_ewaybill_url = self.base_url + '/enriched/ei/api/ewaybill'
|
|
|
|
def set_invoice(self):
|
|
self.invoice = None
|
|
if self.doctype and self.docname:
|
|
self.invoice = frappe.get_cached_doc(self.doctype, self.docname)
|
|
|
|
def set_credentials(self):
|
|
self.e_invoice_settings = frappe.get_cached_doc('E Invoice Settings')
|
|
|
|
if not self.e_invoice_settings.enable:
|
|
frappe.throw(_("E-Invoicing is disabled. Please enable it from {} to generate e-invoices.").format(get_link_to_form("E Invoice Settings", "E Invoice Settings")))
|
|
|
|
if self.invoice:
|
|
gstin = self.get_seller_gstin()
|
|
credentials_for_gstin = [d for d in self.e_invoice_settings.credentials if d.gstin == gstin]
|
|
if credentials_for_gstin:
|
|
self.credentials = credentials_for_gstin[0]
|
|
else:
|
|
frappe.throw(_('Cannot find e-invoicing credentials for selected Company GSTIN. Please check E-Invoice Settings'))
|
|
else:
|
|
self.credentials = self.e_invoice_settings.credentials[0] if self.e_invoice_settings.credentials else None
|
|
|
|
def get_seller_gstin(self):
|
|
gstin = frappe.db.get_value('Address', self.invoice.company_address, 'gstin')
|
|
if not gstin:
|
|
frappe.throw(_('Cannot retrieve Company GSTIN. Please select company address with valid GSTIN.'))
|
|
return gstin
|
|
|
|
def get_auth_token(self):
|
|
if time_diff_in_seconds(self.e_invoice_settings.token_expiry, now_datetime()) < 150.0:
|
|
self.fetch_auth_token()
|
|
|
|
return self.e_invoice_settings.auth_token
|
|
|
|
def make_request(self, request_type, url, headers=None, data=None):
|
|
if request_type == 'post':
|
|
res = make_post_request(url, headers=headers, data=data)
|
|
else:
|
|
res = make_get_request(url, headers=headers, data=data)
|
|
|
|
self.log_request(url, headers, data, res)
|
|
return res
|
|
|
|
def log_request(self, url, headers, data, res):
|
|
headers.update({ 'password': self.credentials.password })
|
|
request_log = frappe.get_doc({
|
|
"doctype": "E Invoice Request Log",
|
|
"user": frappe.session.user,
|
|
"reference_invoice": self.invoice.name if self.invoice else None,
|
|
"url": url,
|
|
"headers": json.dumps(headers, indent=4) if headers else None,
|
|
"data": json.dumps(data, indent=4) if isinstance(data, dict) else data,
|
|
"response": json.dumps(res, indent=4) if res else None
|
|
})
|
|
request_log.save(ignore_permissions=True)
|
|
frappe.db.commit()
|
|
|
|
def fetch_auth_token(self):
|
|
client_id = self.e_invoice_settings.client_id or frappe.conf.einvoice_client_id
|
|
client_secret = self.e_invoice_settings.get_password('client_secret') or frappe.conf.einvoice_client_secret
|
|
headers = {
|
|
'gspappid': client_id,
|
|
'gspappsecret': client_secret
|
|
}
|
|
res = {}
|
|
try:
|
|
res = self.make_request('post', self.authenticate_url, headers)
|
|
self.e_invoice_settings.auth_token = "{} {}".format(res.get('token_type'), res.get('access_token'))
|
|
self.e_invoice_settings.token_expiry = add_to_date(None, seconds=res.get('expires_in'))
|
|
self.e_invoice_settings.save(ignore_permissions=True)
|
|
self.e_invoice_settings.reload()
|
|
|
|
except Exception:
|
|
log_error(res)
|
|
self.raise_error(True)
|
|
|
|
def get_headers(self):
|
|
return {
|
|
'content-type': 'application/json',
|
|
'user_name': self.credentials.username,
|
|
'password': self.credentials.get_password(),
|
|
'gstin': self.credentials.gstin,
|
|
'authorization': self.get_auth_token(),
|
|
'requestid': str(base64.b64encode(os.urandom(18))),
|
|
}
|
|
|
|
def fetch_gstin_details(self, gstin):
|
|
headers = self.get_headers()
|
|
|
|
try:
|
|
params = '?gstin={gstin}'.format(gstin=gstin)
|
|
res = self.make_request('get', self.gstin_details_url + params, headers)
|
|
if res.get('success'):
|
|
return res.get('result')
|
|
else:
|
|
log_error(res)
|
|
raise RequestFailed
|
|
|
|
except RequestFailed:
|
|
self.raise_error()
|
|
|
|
except Exception:
|
|
log_error()
|
|
self.raise_error(True)
|
|
@staticmethod
|
|
def get_gstin_details(gstin):
|
|
'''fetch and cache GSTIN details'''
|
|
if not hasattr(frappe.local, 'gstin_cache'):
|
|
frappe.local.gstin_cache = {}
|
|
|
|
key = gstin
|
|
gsp_connector = GSPConnector()
|
|
details = gsp_connector.fetch_gstin_details(gstin)
|
|
|
|
frappe.local.gstin_cache[key] = details
|
|
frappe.cache().hset('gstin_cache', key, details)
|
|
return details
|
|
|
|
def generate_irn(self):
|
|
data = {}
|
|
try:
|
|
headers = self.get_headers()
|
|
einvoice = make_einvoice(self.invoice)
|
|
data = json.dumps(einvoice, indent=4)
|
|
res = self.make_request('post', self.generate_irn_url, headers, data)
|
|
|
|
if res.get('success'):
|
|
self.set_einvoice_data(res.get('result'))
|
|
|
|
elif '2150' in res.get('message'):
|
|
# IRN already generated but not updated in invoice
|
|
# Extract the IRN from the response description and fetch irn details
|
|
irn = res.get('result')[0].get('Desc').get('Irn')
|
|
irn_details = self.get_irn_details(irn)
|
|
if irn_details:
|
|
self.set_einvoice_data(irn_details)
|
|
else:
|
|
raise RequestFailed('IRN has already been generated for the invoice but cannot fetch details for the it. \
|
|
Contact ERPNext support to resolve the issue.')
|
|
|
|
else:
|
|
raise RequestFailed
|
|
|
|
except RequestFailed:
|
|
errors = self.sanitize_error_message(res.get('message'))
|
|
self.set_failed_status(errors=errors)
|
|
self.raise_error(errors=errors)
|
|
|
|
except Exception as e:
|
|
self.set_failed_status(errors=str(e))
|
|
log_error(data)
|
|
self.raise_error(True)
|
|
|
|
@staticmethod
|
|
def bulk_generate_irn(invoices):
|
|
gsp_connector = GSPConnector()
|
|
gsp_connector.doctype = 'Sales Invoice'
|
|
|
|
failed = []
|
|
|
|
for invoice in invoices:
|
|
try:
|
|
gsp_connector.docname = invoice
|
|
gsp_connector.set_invoice()
|
|
gsp_connector.set_credentials()
|
|
gsp_connector.generate_irn()
|
|
|
|
except Exception as e:
|
|
failed.append({
|
|
'docname': invoice,
|
|
'message': str(e)
|
|
})
|
|
|
|
return failed
|
|
|
|
def get_irn_details(self, irn):
|
|
headers = self.get_headers()
|
|
|
|
try:
|
|
params = '?irn={irn}'.format(irn=irn)
|
|
res = self.make_request('get', self.irn_details_url + params, headers)
|
|
if res.get('success'):
|
|
return res.get('result')
|
|
else:
|
|
raise RequestFailed
|
|
|
|
except RequestFailed:
|
|
errors = self.sanitize_error_message(res.get('message'))
|
|
self.raise_error(errors=errors)
|
|
|
|
except Exception:
|
|
log_error()
|
|
self.raise_error(True)
|
|
|
|
def cancel_irn(self, irn, reason, remark):
|
|
data, res = {}, {}
|
|
try:
|
|
# validate cancellation
|
|
if time_diff_in_hours(now_datetime(), self.invoice.ack_date) > 24:
|
|
frappe.throw(_('E-Invoice cannot be cancelled after 24 hours of IRN generation.'), title=_('Not Allowed'), exc=CancellationNotAllowed)
|
|
if not irn:
|
|
frappe.throw(_('IRN not found. You must generate IRN before cancelling.'), title=_('Not Allowed'), exc=CancellationNotAllowed)
|
|
|
|
headers = self.get_headers()
|
|
data = json.dumps({
|
|
'Irn': irn,
|
|
'Cnlrsn': reason,
|
|
'Cnlrem': remark
|
|
}, indent=4)
|
|
|
|
res = self.make_request('post', self.cancel_irn_url, headers, data)
|
|
if res.get('success') or '9999' in res.get('message'):
|
|
self.invoice.irn_cancelled = 1
|
|
self.invoice.irn_cancel_date = res.get('result')['CancelDate'] if res.get('result') else ""
|
|
self.invoice.einvoice_status = 'Cancelled'
|
|
self.invoice.flags.updater_reference = {
|
|
'doctype': self.invoice.doctype,
|
|
'docname': self.invoice.name,
|
|
'label': _('IRN Cancelled - {}').format(remark)
|
|
}
|
|
self.update_invoice()
|
|
|
|
else:
|
|
raise RequestFailed
|
|
|
|
except RequestFailed:
|
|
errors = self.sanitize_error_message(res.get('message'))
|
|
self.set_failed_status(errors=errors)
|
|
self.raise_error(errors=errors)
|
|
|
|
except CancellationNotAllowed as e:
|
|
self.set_failed_status(errors=str(e))
|
|
self.raise_error(errors=str(e))
|
|
|
|
except Exception as e:
|
|
self.set_failed_status(errors=str(e))
|
|
log_error(data)
|
|
self.raise_error(True)
|
|
|
|
@staticmethod
|
|
def bulk_cancel_irn(invoices, reason, remark):
|
|
gsp_connector = GSPConnector()
|
|
gsp_connector.doctype = 'Sales Invoice'
|
|
|
|
failed = []
|
|
|
|
for invoice in invoices:
|
|
try:
|
|
gsp_connector.docname = invoice
|
|
gsp_connector.set_invoice()
|
|
gsp_connector.set_credentials()
|
|
irn = gsp_connector.invoice.irn
|
|
gsp_connector.cancel_irn(irn, reason, remark)
|
|
|
|
except Exception as e:
|
|
failed.append({
|
|
'docname': invoice,
|
|
'message': str(e)
|
|
})
|
|
|
|
return failed
|
|
|
|
def generate_eway_bill(self, **kwargs):
|
|
args = frappe._dict(kwargs)
|
|
|
|
headers = self.get_headers()
|
|
eway_bill_details = get_eway_bill_details(args)
|
|
data = json.dumps({
|
|
'Irn': args.irn,
|
|
'Distance': cint(eway_bill_details.distance),
|
|
'TransMode': eway_bill_details.mode_of_transport,
|
|
'TransId': eway_bill_details.gstin,
|
|
'TransName': eway_bill_details.transporter,
|
|
'TrnDocDt': eway_bill_details.document_date,
|
|
'TrnDocNo': eway_bill_details.document_name,
|
|
'VehNo': eway_bill_details.vehicle_no,
|
|
'VehType': eway_bill_details.vehicle_type
|
|
}, indent=4)
|
|
|
|
try:
|
|
res = self.make_request('post', self.generate_ewaybill_url, headers, data)
|
|
if res.get('success'):
|
|
self.invoice.ewaybill = res.get('result').get('EwbNo')
|
|
self.invoice.eway_bill_validity = res.get('result').get('EwbValidTill')
|
|
self.invoice.eway_bill_cancelled = 0
|
|
self.invoice.update(args)
|
|
self.invoice.flags.updater_reference = {
|
|
'doctype': self.invoice.doctype,
|
|
'docname': self.invoice.name,
|
|
'label': _('E-Way Bill Generated')
|
|
}
|
|
self.update_invoice()
|
|
|
|
else:
|
|
raise RequestFailed
|
|
|
|
except RequestFailed:
|
|
errors = self.sanitize_error_message(res.get('message'))
|
|
self.raise_error(errors=errors)
|
|
|
|
except Exception:
|
|
log_error(data)
|
|
self.raise_error(True)
|
|
|
|
def cancel_eway_bill(self, eway_bill, reason, remark):
|
|
headers = self.get_headers()
|
|
data = json.dumps({
|
|
'ewbNo': eway_bill,
|
|
'cancelRsnCode': reason,
|
|
'cancelRmrk': remark
|
|
}, indent=4)
|
|
headers["username"] = headers["user_name"]
|
|
del headers["user_name"]
|
|
try:
|
|
res = self.make_request('post', self.cancel_ewaybill_url, headers, data)
|
|
if res.get('success'):
|
|
self.invoice.ewaybill = ''
|
|
self.invoice.eway_bill_cancelled = 1
|
|
self.invoice.flags.updater_reference = {
|
|
'doctype': self.invoice.doctype,
|
|
'docname': self.invoice.name,
|
|
'label': _('E-Way Bill Cancelled - {}').format(remark)
|
|
}
|
|
self.update_invoice()
|
|
|
|
else:
|
|
raise RequestFailed
|
|
|
|
except RequestFailed:
|
|
errors = self.sanitize_error_message(res.get('message'))
|
|
self.raise_error(errors=errors)
|
|
|
|
except Exception:
|
|
log_error(data)
|
|
self.raise_error(True)
|
|
|
|
def sanitize_error_message(self, message):
|
|
'''
|
|
On validation errors, response message looks something like this:
|
|
message = '2174 : For inter-state transaction, CGST and SGST amounts are not applicable; only IGST amount is applicable,
|
|
3095 : Supplier GSTIN is inactive'
|
|
we search for string between ':' to extract the error messages
|
|
errors = [
|
|
': For inter-state transaction, CGST and SGST amounts are not applicable; only IGST amount is applicable, 3095 ',
|
|
': Test'
|
|
]
|
|
then we trim down the message by looping over errors
|
|
'''
|
|
if not message:
|
|
return []
|
|
|
|
errors = re.findall(': [^:]+', message)
|
|
for idx, e in enumerate(errors):
|
|
# remove colons
|
|
errors[idx] = errors[idx].replace(':', '').strip()
|
|
# if not last
|
|
if idx != len(errors) - 1:
|
|
# remove last 7 chars eg: ', 3095 '
|
|
errors[idx] = errors[idx][:-6]
|
|
|
|
return errors
|
|
|
|
def raise_error(self, raise_exception=False, errors=None):
|
|
if errors is None:
|
|
errors = []
|
|
title = _('E Invoice Request Failed')
|
|
if errors:
|
|
frappe.throw(errors, title=title, as_list=1)
|
|
else:
|
|
link_to_error_list = '<a href="/app/error-log" target="_blank">Error Log</a>'
|
|
frappe.msgprint(
|
|
_('An error occurred while making e-invoicing request. Please check {} for more information.').format(link_to_error_list),
|
|
title=title,
|
|
raise_exception=raise_exception,
|
|
indicator='red'
|
|
)
|
|
|
|
def set_einvoice_data(self, res):
|
|
enc_signed_invoice = res.get('SignedInvoice')
|
|
dec_signed_invoice = jwt.decode(enc_signed_invoice, options={"verify_signature": False})['data']
|
|
|
|
self.invoice.irn = res.get('Irn')
|
|
self.invoice.ewaybill = res.get('EwbNo')
|
|
self.invoice.eway_bill_validity = res.get('EwbValidTill')
|
|
self.invoice.ack_no = res.get('AckNo')
|
|
self.invoice.ack_date = res.get('AckDt')
|
|
self.invoice.signed_einvoice = dec_signed_invoice
|
|
self.invoice.ack_no = res.get('AckNo')
|
|
self.invoice.ack_date = res.get('AckDt')
|
|
self.invoice.signed_qr_code = res.get('SignedQRCode')
|
|
self.invoice.einvoice_status = 'Generated'
|
|
|
|
self.attach_qrcode_image()
|
|
|
|
self.invoice.flags.updater_reference = {
|
|
'doctype': self.invoice.doctype,
|
|
'docname': self.invoice.name,
|
|
'label': _('IRN Generated')
|
|
}
|
|
self.update_invoice()
|
|
|
|
def attach_qrcode_image(self):
|
|
qrcode = self.invoice.signed_qr_code
|
|
doctype = self.invoice.doctype
|
|
docname = self.invoice.name
|
|
filename = 'QRCode_{}.png'.format(docname).replace(os.path.sep, "__")
|
|
|
|
qr_image = io.BytesIO()
|
|
url = qrcreate(qrcode, error='L')
|
|
url.png(qr_image, scale=2, quiet_zone=1)
|
|
_file = frappe.get_doc({
|
|
"doctype": "File",
|
|
"file_name": filename,
|
|
"attached_to_doctype": doctype,
|
|
"attached_to_name": docname,
|
|
"attached_to_field": "qrcode_image",
|
|
"is_private": 0,
|
|
"content": qr_image.getvalue()})
|
|
_file.save()
|
|
frappe.db.commit()
|
|
self.invoice.qrcode_image = _file.file_url
|
|
|
|
def update_invoice(self):
|
|
self.invoice.flags.ignore_validate_update_after_submit = True
|
|
self.invoice.flags.ignore_validate = True
|
|
self.invoice.save()
|
|
|
|
def set_failed_status(self, errors=None):
|
|
frappe.db.rollback()
|
|
self.invoice.einvoice_status = 'Failed'
|
|
self.invoice.failure_description = self.get_failure_message(errors) if errors else ""
|
|
self.update_invoice()
|
|
frappe.db.commit()
|
|
|
|
def get_failure_message(self, errors):
|
|
if isinstance(errors, list):
|
|
errors = ', '.join(errors)
|
|
return errors
|
|
|
|
def sanitize_for_json(string):
|
|
"""Escape JSON specific characters from a string."""
|
|
|
|
# json.dumps adds double-quotes to the string. Indexing to remove them.
|
|
return json.dumps(string)[1:-1]
|
|
|
|
@frappe.whitelist()
|
|
def get_einvoice(doctype, docname):
|
|
invoice = frappe.get_doc(doctype, docname)
|
|
return make_einvoice(invoice)
|
|
|
|
@frappe.whitelist()
|
|
def generate_irn(doctype, docname):
|
|
gsp_connector = GSPConnector(doctype, docname)
|
|
gsp_connector.generate_irn()
|
|
|
|
@frappe.whitelist()
|
|
def cancel_irn(doctype, docname, irn, reason, remark):
|
|
gsp_connector = GSPConnector(doctype, docname)
|
|
gsp_connector.cancel_irn(irn, reason, remark)
|
|
|
|
@frappe.whitelist()
|
|
def generate_eway_bill(doctype, docname, **kwargs):
|
|
gsp_connector = GSPConnector(doctype, docname)
|
|
gsp_connector.generate_eway_bill(**kwargs)
|
|
|
|
@frappe.whitelist()
|
|
def cancel_eway_bill(doctype, docname):
|
|
# TODO: uncomment when eway_bill api from Adequare is enabled
|
|
# gsp_connector = GSPConnector(doctype, docname)
|
|
# gsp_connector.cancel_eway_bill(eway_bill, reason, remark)
|
|
|
|
frappe.db.set_value(doctype, docname, 'ewaybill', '')
|
|
frappe.db.set_value(doctype, docname, 'eway_bill_cancelled', 1)
|
|
|
|
@frappe.whitelist()
|
|
def generate_einvoices(docnames):
|
|
docnames = json.loads(docnames) or []
|
|
|
|
if len(docnames) < 10:
|
|
failures = GSPConnector.bulk_generate_irn(docnames)
|
|
frappe.local.message_log = []
|
|
|
|
if failures:
|
|
show_bulk_action_failure_message(failures)
|
|
|
|
success = len(docnames) - len(failures)
|
|
frappe.msgprint(
|
|
_('{} e-invoices generated successfully').format(success),
|
|
title=_('Bulk E-Invoice Generation Complete')
|
|
)
|
|
|
|
else:
|
|
enqueue_bulk_action(schedule_bulk_generate_irn, docnames=docnames)
|
|
|
|
def schedule_bulk_generate_irn(docnames):
|
|
failures = GSPConnector.bulk_generate_irn(docnames)
|
|
frappe.local.message_log = []
|
|
|
|
frappe.publish_realtime("bulk_einvoice_generation_complete", {
|
|
"user": frappe.session.user,
|
|
"failures": failures,
|
|
"invoices": docnames
|
|
})
|
|
|
|
def show_bulk_action_failure_message(failures):
|
|
for doc in failures:
|
|
docname = '<a href="sales-invoice/{0}">{0}</a>'.format(doc.get('docname'))
|
|
message = doc.get('message').replace("'", '"')
|
|
if message[0] == '[':
|
|
errors = json.loads(message)
|
|
error_list = ''.join(['<li>{}</li>'.format(err) for err in errors])
|
|
message = '''{} has following errors:<br>
|
|
<ul style="padding-left: 20px; padding-top: 5px">{}</ul>'''.format(docname, error_list)
|
|
else:
|
|
message = '{} - {}'.format(docname, message)
|
|
|
|
frappe.msgprint(
|
|
message,
|
|
title=_('Bulk E-Invoice Generation Complete'),
|
|
indicator='red'
|
|
)
|
|
|
|
@frappe.whitelist()
|
|
def cancel_irns(docnames, reason, remark):
|
|
docnames = json.loads(docnames) or []
|
|
|
|
if len(docnames) < 10:
|
|
failures = GSPConnector.bulk_cancel_irn(docnames, reason, remark)
|
|
frappe.local.message_log = []
|
|
|
|
if failures:
|
|
show_bulk_action_failure_message(failures)
|
|
|
|
success = len(docnames) - len(failures)
|
|
frappe.msgprint(
|
|
_('{} e-invoices cancelled successfully').format(success),
|
|
title=_('Bulk E-Invoice Cancellation Complete')
|
|
)
|
|
else:
|
|
enqueue_bulk_action(schedule_bulk_cancel_irn, docnames=docnames, reason=reason, remark=remark)
|
|
|
|
def schedule_bulk_cancel_irn(docnames, reason, remark):
|
|
failures = GSPConnector.bulk_cancel_irn(docnames, reason, remark)
|
|
frappe.local.message_log = []
|
|
|
|
frappe.publish_realtime("bulk_einvoice_cancellation_complete", {
|
|
"user": frappe.session.user,
|
|
"failures": failures,
|
|
"invoices": docnames
|
|
})
|
|
|
|
def enqueue_bulk_action(job, **kwargs):
|
|
check_scheduler_status()
|
|
|
|
enqueue(
|
|
job,
|
|
**kwargs,
|
|
queue="long",
|
|
timeout=10000,
|
|
event="processing_bulk_einvoice_action",
|
|
now=frappe.conf.developer_mode or frappe.flags.in_test,
|
|
)
|
|
|
|
if job == schedule_bulk_generate_irn:
|
|
msg = _('E-Invoices will be generated in a background process.')
|
|
else:
|
|
msg = _('E-Invoices will be cancelled in a background process.')
|
|
|
|
frappe.msgprint(msg, alert=1)
|
|
|
|
def check_scheduler_status():
|
|
if is_scheduler_inactive() and not frappe.flags.in_test:
|
|
frappe.throw(_("Scheduler is inactive. Cannot enqueue job."), title=_("Scheduler Inactive"))
|
|
|
|
def job_already_enqueued(job_name):
|
|
enqueued_jobs = [d.get("job_name") for d in get_info()]
|
|
if job_name in enqueued_jobs:
|
|
return True
|