Merge pull request #36780 from rtdany10/rounded-row-wise-tax

feat: item(row) wise tax amount rounding
diff --git a/erpnext/regional/united_arab_emirates/utils.py b/erpnext/regional/united_arab_emirates/utils.py
index a910af6..efeaeed 100644
--- a/erpnext/regional/united_arab_emirates/utils.py
+++ b/erpnext/regional/united_arab_emirates/utils.py
@@ -7,32 +7,32 @@
 
 
 def update_itemised_tax_data(doc):
+	# maybe this should be a standard function rather than a regional one
 	if not doc.taxes:
 		return
 
+	if not doc.items:
+		return
+
+	meta = frappe.get_meta(doc.items[0].doctype)
+	if not meta.has_field("tax_rate"):
+		return
+
 	itemised_tax = get_itemised_tax(doc.taxes)
 
 	for row in doc.items:
-		tax_rate = 0.0
-		item_tax_rate = 0.0
+		tax_rate, tax_amount = 0.0, 0.0
+		# dont even bother checking in item tax template as it contains both input and output accounts - double the tax rate
+		item_code = row.item_code or row.item_name
+		if itemised_tax.get(item_code):
+			for tax in itemised_tax.get(row.item_code).values():
+				_tax_rate = flt(tax.get("tax_rate", 0), row.precision("tax_rate"))
+				tax_amount += flt((row.net_amount * _tax_rate) / 100, row.precision("tax_amount"))
+				tax_rate += _tax_rate
 
-		if row.item_tax_rate:
-			item_tax_rate = frappe.parse_json(row.item_tax_rate)
-
-		# First check if tax rate is present
-		# If not then look up in item_wise_tax_detail
-		if item_tax_rate:
-			for account, rate in item_tax_rate.items():
-				tax_rate += rate
-		elif row.item_code and itemised_tax.get(row.item_code):
-			tax_rate = sum([tax.get("tax_rate", 0) for d, tax in itemised_tax.get(row.item_code).items()])
-
-		meta = frappe.get_meta(row.doctype)
-
-		if meta.has_field("tax_rate"):
-			row.tax_rate = flt(tax_rate, row.precision("tax_rate"))
-			row.tax_amount = flt((row.net_amount * tax_rate) / 100, row.precision("net_amount"))
-			row.total_amount = flt((row.net_amount + row.tax_amount), row.precision("total_amount"))
+		row.tax_rate = flt(tax_rate, row.precision("tax_rate"))
+		row.tax_amount = flt(tax_amount, row.precision("tax_amount"))
+		row.total_amount = flt((row.net_amount + row.tax_amount), row.precision("total_amount"))
 
 
 def get_account_currency(account):
diff --git a/erpnext/selling/doctype/sales_order/sales_order.py b/erpnext/selling/doctype/sales_order/sales_order.py
index aae0fee..b91002e 100755
--- a/erpnext/selling/doctype/sales_order/sales_order.py
+++ b/erpnext/selling/doctype/sales_order/sales_order.py
@@ -606,29 +606,37 @@
 
 
 def get_requested_item_qty(sales_order):
-	return frappe._dict(
-		frappe.db.sql(
-			"""
-		select sales_order_item, sum(qty)
-		from `tabMaterial Request Item`
-		where docstatus = 1
-			and sales_order = %s
-		group by sales_order_item
-	""",
-			sales_order,
-		)
-	)
+	result = {}
+	for d in frappe.db.get_all(
+		"Material Request Item",
+		filters={"docstatus": 1, "sales_order": sales_order},
+		fields=["sales_order_item", "sum(qty) as qty", "sum(received_qty) as received_qty"],
+		group_by="sales_order_item",
+	):
+		result[d.sales_order_item] = frappe._dict({"qty": d.qty, "received_qty": d.received_qty})
+
+	return result
 
 
 @frappe.whitelist()
 def make_material_request(source_name, target_doc=None):
 	requested_item_qty = get_requested_item_qty(source_name)
 
+	def get_remaining_qty(so_item):
+		return flt(
+			flt(so_item.qty)
+			- flt(requested_item_qty.get(so_item.name, {}).get("qty"))
+			- max(
+				flt(so_item.get("delivered_qty"))
+				- flt(requested_item_qty.get(so_item.name, {}).get("received_qty")),
+				0,
+			)
+		)
+
 	def update_item(source, target, source_parent):
 		# qty is for packed items, because packed items don't have stock_qty field
-		qty = source.get("qty")
 		target.project = source_parent.project
-		target.qty = qty - requested_item_qty.get(source.name, 0) - flt(source.get("delivered_qty"))
+		target.qty = get_remaining_qty(source)
 		target.stock_qty = flt(target.qty) * flt(target.conversion_factor)
 
 		args = target.as_dict().copy()
@@ -661,8 +669,8 @@
 			"Sales Order Item": {
 				"doctype": "Material Request Item",
 				"field_map": {"name": "sales_order_item", "parent": "sales_order"},
-				"condition": lambda doc: not frappe.db.exists("Product Bundle", doc.item_code)
-				and (doc.stock_qty - flt(doc.get("delivered_qty"))) > requested_item_qty.get(doc.name, 0),
+				"condition": lambda item: not frappe.db.exists("Product Bundle", item.item_code)
+				and get_remaining_qty(item) > 0,
 				"postprocess": update_item,
 			},
 		},