# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt

from __future__ import unicode_literals
import frappe
from frappe import _
from frappe.utils import formatdate
from erpnext.controllers.website_list_for_contact import get_customers_suppliers

def get_context(context):
	context.no_cache = 1
	context.show_sidebar = True
	context.doc = frappe.get_doc(frappe.form_dict.doctype, frappe.form_dict.name)
	context.parents = frappe.form_dict.parents
	context.doc.supplier = get_supplier()
	context.doc.rfq_links = get_link_quotation(context.doc.supplier, context.doc.name)
	unauthorized_user(context.doc.supplier)
	update_supplier_details(context)
	context["title"] = frappe.form_dict.name

def get_supplier():
	doctype = frappe.form_dict.doctype
	parties_doctype = 'Request for Quotation Supplier' if doctype == 'Request for Quotation' else doctype
	customers, suppliers = get_customers_suppliers(parties_doctype, frappe.session.user)

	return suppliers[0] if suppliers else ''

def check_supplier_has_docname_access(supplier):
	status = True
	if frappe.form_dict.name not in frappe.db.sql_list("""select parent from `tabRequest for Quotation Supplier`
		where supplier = %s""", (supplier,)):
		status = False
	return status

def unauthorized_user(supplier):
	status = check_supplier_has_docname_access(supplier) or False
	if status == False:
		frappe.throw(_("Not Permitted"), frappe.PermissionError)

def update_supplier_details(context):
	supplier_doc = frappe.get_doc("Supplier", context.doc.supplier)
	context.doc.currency = supplier_doc.default_currency or frappe.get_cached_value('Company',  context.doc.company,  "default_currency")
	context.doc.currency_symbol = frappe.db.get_value("Currency", context.doc.currency, "symbol", cache=True)
	context.doc.number_format = frappe.db.get_value("Currency", context.doc.currency, "number_format", cache=True)
	context.doc.buying_price_list = supplier_doc.default_price_list or ''

def get_link_quotation(supplier, rfq):
	quotation = frappe.db.sql(""" select distinct `tabSupplier Quotation Item`.parent as name,
		`tabSupplier Quotation`.status, `tabSupplier Quotation`.transaction_date from
		`tabSupplier Quotation Item`, `tabSupplier Quotation` where `tabSupplier Quotation`.docstatus < 2 and
		`tabSupplier Quotation Item`.request_for_quotation =%(name)s and
		`tabSupplier Quotation Item`.parent = `tabSupplier Quotation`.name and
		`tabSupplier Quotation`.supplier = %(supplier)s order by `tabSupplier Quotation`.creation desc""",
		{'name': rfq, 'supplier': supplier}, as_dict=1)

	for data in quotation:
		data.transaction_date = formatdate(data.transaction_date)

	return quotation or None