315 lines
9.2 KiB
Python
315 lines
9.2 KiB
Python
import traceback
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import frappe
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import taxjar
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from frappe import _
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from frappe.contacts.doctype.address.address import get_company_address
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from frappe.utils import cint, flt
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from erpnext import get_default_company
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TAX_ACCOUNT_HEAD = frappe.db.get_single_value("TaxJar Settings", "tax_account_head")
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SHIP_ACCOUNT_HEAD = frappe.db.get_single_value("TaxJar Settings", "shipping_account_head")
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TAXJAR_CREATE_TRANSACTIONS = frappe.db.get_single_value("TaxJar Settings", "taxjar_create_transactions")
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TAXJAR_CALCULATE_TAX = frappe.db.get_single_value("TaxJar Settings", "taxjar_calculate_tax")
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SUPPORTED_COUNTRY_CODES = ["AT", "AU", "BE", "BG", "CA", "CY", "CZ", "DE", "DK", "EE", "ES", "FI",
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"FR", "GB", "GR", "HR", "HU", "IE", "IT", "LT", "LU", "LV", "MT", "NL", "PL", "PT", "RO",
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"SE", "SI", "SK", "US"]
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SUPPORTED_STATE_CODES = ['AL', 'AK', 'AZ', 'AR', 'CA', 'CO', 'CT', 'DE', 'DC', 'FL', 'GA', 'HI', 'ID', 'IL',
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'IN', 'IA', 'KS', 'KY', 'LA', 'ME', 'MD', 'MA', 'MI', 'MN', 'MS', 'MO', 'MT', 'NE',
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'NV', 'NH', 'NJ', 'NM', 'NY', 'NC', 'ND', 'OH', 'OK', 'OR', 'PA', 'RI', 'SC', 'SD',
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'TN', 'TX', 'UT', 'VT', 'VA', 'WA', 'WV', 'WI', 'WY']
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def get_client():
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taxjar_settings = frappe.get_single("TaxJar Settings")
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if not taxjar_settings.is_sandbox:
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api_key = taxjar_settings.api_key and taxjar_settings.get_password("api_key")
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api_url = taxjar.DEFAULT_API_URL
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else:
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api_key = taxjar_settings.sandbox_api_key and taxjar_settings.get_password("sandbox_api_key")
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api_url = taxjar.SANDBOX_API_URL
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if api_key and api_url:
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client = taxjar.Client(api_key=api_key, api_url=api_url)
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client.set_api_config('headers', {
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'x-api-version': '2020-08-07'
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})
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return client
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def create_transaction(doc, method):
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"""Create an order transaction in TaxJar"""
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if not TAXJAR_CREATE_TRANSACTIONS:
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return
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client = get_client()
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if not client:
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return
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sales_tax = sum([tax.tax_amount for tax in doc.taxes if tax.account_head == TAX_ACCOUNT_HEAD])
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if not sales_tax:
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return
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tax_dict = get_tax_data(doc)
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if not tax_dict:
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return
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tax_dict['transaction_id'] = doc.name
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tax_dict['transaction_date'] = frappe.utils.today()
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tax_dict['sales_tax'] = sales_tax
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tax_dict['amount'] = doc.total + tax_dict['shipping']
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try:
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if doc.is_return:
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client.create_refund(tax_dict)
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else:
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client.create_order(tax_dict)
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except taxjar.exceptions.TaxJarResponseError as err:
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frappe.throw(_(sanitize_error_response(err)))
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except Exception as ex:
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print(traceback.format_exc(ex))
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def delete_transaction(doc, method):
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"""Delete an existing TaxJar order transaction"""
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if not TAXJAR_CREATE_TRANSACTIONS:
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return
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client = get_client()
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if not client:
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return
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client.delete_order(doc.name)
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def get_tax_data(doc):
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from_address = get_company_address_details(doc)
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from_shipping_state = from_address.get("state")
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from_country_code = frappe.db.get_value("Country", from_address.country, "code")
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from_country_code = from_country_code.upper()
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to_address = get_shipping_address_details(doc)
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to_shipping_state = to_address.get("state")
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to_country_code = frappe.db.get_value("Country", to_address.country, "code")
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to_country_code = to_country_code.upper()
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shipping = sum([tax.tax_amount for tax in doc.taxes if tax.account_head == SHIP_ACCOUNT_HEAD])
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line_items = [get_line_item_dict(item, doc.docstatus) for item in doc.items]
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if from_shipping_state not in SUPPORTED_STATE_CODES:
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from_shipping_state = get_state_code(from_address, 'Company')
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if to_shipping_state not in SUPPORTED_STATE_CODES:
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to_shipping_state = get_state_code(to_address, 'Shipping')
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tax_dict = {
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'from_country': from_country_code,
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'from_zip': from_address.pincode,
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'from_state': from_shipping_state,
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'from_city': from_address.city,
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'from_street': from_address.address_line1,
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'to_country': to_country_code,
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'to_zip': to_address.pincode,
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'to_city': to_address.city,
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'to_street': to_address.address_line1,
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'to_state': to_shipping_state,
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'shipping': shipping,
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'amount': doc.net_total,
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'plugin': 'erpnext',
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'line_items': line_items
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}
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return tax_dict
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def get_state_code(address, location):
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if address is not None:
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state_code = get_iso_3166_2_state_code(address)
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if state_code not in SUPPORTED_STATE_CODES:
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frappe.throw(_("Please enter a valid State in the {0} Address").format(location))
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else:
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frappe.throw(_("Please enter a valid State in the {0} Address").format(location))
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return state_code
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def get_line_item_dict(item, docstatus):
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tax_dict = dict(
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id = item.get('idx'),
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quantity = item.get('qty'),
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unit_price = item.get('rate'),
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product_tax_code = item.get('product_tax_category')
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)
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if docstatus == 1:
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tax_dict.update({
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'sales_tax':item.get('tax_collectable')
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})
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return tax_dict
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def set_sales_tax(doc, method):
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if not TAXJAR_CALCULATE_TAX:
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return
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if not doc.items:
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return
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if check_sales_tax_exemption(doc):
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return
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tax_dict = get_tax_data(doc)
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if not tax_dict:
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# Remove existing tax rows if address is changed from a taxable state/country
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setattr(doc, "taxes", [tax for tax in doc.taxes if tax.account_head != TAX_ACCOUNT_HEAD])
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return
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# check if delivering within a nexus
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check_for_nexus(doc, tax_dict)
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tax_data = validate_tax_request(tax_dict)
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if tax_data is not None:
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if not tax_data.amount_to_collect:
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setattr(doc, "taxes", [tax for tax in doc.taxes if tax.account_head != TAX_ACCOUNT_HEAD])
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elif tax_data.amount_to_collect > 0:
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# Loop through tax rows for existing Sales Tax entry
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# If none are found, add a row with the tax amount
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for tax in doc.taxes:
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if tax.account_head == TAX_ACCOUNT_HEAD:
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tax.tax_amount = tax_data.amount_to_collect
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doc.run_method("calculate_taxes_and_totals")
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break
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else:
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doc.append("taxes", {
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"charge_type": "Actual",
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"description": "Sales Tax",
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"account_head": TAX_ACCOUNT_HEAD,
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"tax_amount": tax_data.amount_to_collect
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})
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# Assigning values to tax_collectable and taxable_amount fields in sales item table
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for item in tax_data.breakdown.line_items:
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doc.get('items')[cint(item.id)-1].tax_collectable = item.tax_collectable
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doc.get('items')[cint(item.id)-1].taxable_amount = item.taxable_amount
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doc.run_method("calculate_taxes_and_totals")
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def check_for_nexus(doc, tax_dict):
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if not frappe.db.get_value('TaxJar Nexus', {'region_code': tax_dict["to_state"]}):
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for item in doc.get("items"):
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item.tax_collectable = flt(0)
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item.taxable_amount = flt(0)
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for tax in doc.taxes:
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if tax.account_head == TAX_ACCOUNT_HEAD:
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doc.taxes.remove(tax)
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return
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def check_sales_tax_exemption(doc):
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# if the party is exempt from sales tax, then set all tax account heads to zero
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sales_tax_exempted = hasattr(doc, "exempt_from_sales_tax") and doc.exempt_from_sales_tax \
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or frappe.db.has_column("Customer", "exempt_from_sales_tax") \
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and frappe.db.get_value("Customer", doc.customer, "exempt_from_sales_tax")
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if sales_tax_exempted:
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for tax in doc.taxes:
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if tax.account_head == TAX_ACCOUNT_HEAD:
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tax.tax_amount = 0
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break
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doc.run_method("calculate_taxes_and_totals")
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return True
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else:
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return False
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def validate_tax_request(tax_dict):
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"""Return the sales tax that should be collected for a given order."""
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client = get_client()
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if not client:
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return
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try:
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tax_data = client.tax_for_order(tax_dict)
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except taxjar.exceptions.TaxJarResponseError as err:
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frappe.throw(_(sanitize_error_response(err)))
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else:
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return tax_data
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def get_company_address_details(doc):
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"""Return default company address details"""
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company_address = get_company_address(get_default_company()).company_address
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if not company_address:
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frappe.throw(_("Please set a default company address"))
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company_address = frappe.get_doc("Address", company_address)
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return company_address
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def get_shipping_address_details(doc):
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"""Return customer shipping address details"""
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if doc.shipping_address_name:
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shipping_address = frappe.get_doc("Address", doc.shipping_address_name)
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elif doc.customer_address:
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shipping_address = frappe.get_doc("Address", doc.customer_address_name)
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else:
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shipping_address = get_company_address_details(doc)
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return shipping_address
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def get_iso_3166_2_state_code(address):
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import pycountry
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country_code = frappe.db.get_value("Country", address.get("country"), "code")
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error_message = _("""{0} is not a valid state! Check for typos or enter the ISO code for your state.""").format(address.get("state"))
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state = address.get("state").upper().strip()
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# The max length for ISO state codes is 3, excluding the country code
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if len(state) <= 3:
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# PyCountry returns state code as {country_code}-{state-code} (e.g. US-FL)
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address_state = (country_code + "-" + state).upper()
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states = pycountry.subdivisions.get(country_code=country_code.upper())
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states = [pystate.code for pystate in states]
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if address_state in states:
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return state
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frappe.throw(_(error_message))
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else:
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try:
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lookup_state = pycountry.subdivisions.lookup(state)
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except LookupError:
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frappe.throw(_(error_message))
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else:
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return lookup_state.code.split('-')[1]
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def sanitize_error_response(response):
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response = response.full_response.get("detail")
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response = response.replace("_", " ")
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sanitized_responses = {
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"to zip": "Zipcode",
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"to city": "City",
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"to state": "State",
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"to country": "Country"
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}
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for k, v in sanitized_responses.items():
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response = response.replace(k, v)
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return response
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