import frappe

from erpnext.e_commerce.doctype.website_item.website_item import make_website_item


def execute():
	frappe.reload_doc("e_commerce", "doctype", "website_item")
	frappe.reload_doc("e_commerce", "doctype", "website_item_tabbed_section")
	frappe.reload_doc("e_commerce", "doctype", "website_offer")
	frappe.reload_doc("e_commerce", "doctype", "recommended_items")
	frappe.reload_doc("e_commerce", "doctype", "e_commerce_settings")
	frappe.reload_doc("stock", "doctype", "item")

	item_fields = [
		"item_code",
		"item_name",
		"item_group",
		"stock_uom",
		"brand",
		"image",
		"has_variants",
		"variant_of",
		"description",
		"weightage",
	]
	web_fields_to_map = [
		"route",
		"slideshow",
		"website_image_alt",
		"website_warehouse",
		"web_long_description",
		"website_content",
		"thumbnail",
	]

	# get all valid columns (fields) from Item master DB schema
	item_table_fields = frappe.db.sql("desc `tabItem`", as_dict=1)  # nosemgrep
	item_table_fields = [d.get("Field") for d in item_table_fields]

	# prepare fields to query from Item, check if the web field exists in Item master
	web_query_fields = []
	for web_field in web_fields_to_map:
		if web_field in item_table_fields:
			web_query_fields.append(web_field)
			item_fields.append(web_field)

	# check if the filter fields exist in Item master
	or_filters = {}
	for field in ["show_in_website", "show_variant_in_website"]:
		if field in item_table_fields:
			or_filters[field] = 1

	if not web_query_fields or not or_filters:
		# web fields to map are not present in Item master schema
		# most likely a fresh installation that doesnt need this patch
		return

	items = frappe.db.get_all("Item", fields=item_fields, or_filters=or_filters)
	total_count = len(items)

	for count, item in enumerate(items, start=1):
		if frappe.db.exists("Website Item", {"item_code": item.item_code}):
			continue

		# make new website item from item (publish item)
		website_item = make_website_item(item, save=False)
		website_item.ranking = item.get("weightage")

		for field in web_fields_to_map:
			website_item.update({field: item.get(field)})

		website_item.save()

		# move Website Item Group & Website Specification table to Website Item
		for doctype in ("Website Item Group", "Item Website Specification"):
			frappe.db.set_value(
				doctype,
				{"parenttype": "Item", "parent": item.item_code},  # filters
				{"parenttype": "Website Item", "parent": website_item.name},  # value dict
			)

		if count % 20 == 0:  # commit after every 20 items
			frappe.db.commit()

		frappe.utils.update_progress_bar("Creating Website Items", count, total_count)