fix: Unequal debit and credit issue on RCM Invoice (#24838)

* fix: Unequal debit and credit issue on RCM Invoice

* fix: Travis

erpnext/regional/india/utils.py

@@ -693,25 +693,12 @@ def update_grand_total_for_rcm(doc, method):
 	if country != 'India':
 		return
 
-	if not doc.total_taxes_and_charges:
+	gst_tax, base_gst_tax = get_gst_tax_amount(doc)
+
+	if not base_gst_tax:
 		return
 
 	if doc.reverse_charge == 'Y':
-		gst_accounts = get_gst_accounts(doc.company)
-		gst_account_list = gst_accounts.get('cgst_account') + gst_accounts.get('sgst_account') \
-			+ gst_accounts.get('igst_account')
-
-		base_gst_tax = 0
-		gst_tax = 0
-
-		for tax in doc.get('taxes'):
-			if tax.category not in ("Total", "Valuation and Total"):
-				continue
-
-			if flt(tax.base_tax_amount_after_discount_amount) and tax.account_head in gst_account_list:
-				base_gst_tax += tax.base_tax_amount_after_discount_amount
-				gst_tax += tax.tax_amount_after_discount_amount
-
 		doc.taxes_and_charges_added -= gst_tax
 		doc.total_taxes_and_charges -= gst_tax
 		doc.base_taxes_and_charges_added -= base_gst_tax
@@ -745,7 +732,9 @@ def make_regional_gl_entries(gl_entries, doc):
 	if country != 'India':
 		return gl_entries
 
-	if not doc.total_taxes_and_charges:
+	gst_tax, base_gst_tax = get_gst_tax_amount(doc)
+
+	if not base_gst_tax:
 		return gl_entries
 
 	if doc.reverse_charge == 'Y':
@@ -775,3 +764,21 @@ def make_regional_gl_entries(gl_entries, doc):
 				)
 
 	return gl_entries
+
+def get_gst_tax_amount(doc):
+	gst_accounts = get_gst_accounts(doc.company)
+	gst_account_list = gst_accounts.get('cgst_account', []) + gst_accounts.get('sgst_account', []) \
+		+ gst_accounts.get('igst_account', [])
+
+	base_gst_tax = 0
+	gst_tax = 0
+
+	for tax in doc.get('taxes'):
+		if tax.category not in ("Total", "Valuation and Total"):
+			continue
+
+		if flt(tax.base_tax_amount_after_discount_amount) and tax.account_head in gst_account_list:
+			base_gst_tax += tax.base_tax_amount_after_discount_amount
+			gst_tax += tax.tax_amount_after_discount_amount
+
+	return gst_tax, base_gst_tax