refactor: check for running job while using reconciliation tool

erpnext/accounts/doctype/payment_reconciliation/payment_reconciliation.js

@@ -82,6 +82,28 @@ erpnext.accounts.PaymentReconciliationController = class PaymentReconciliationCo
 			this.frm.change_custom_button_type('Get Unreconciled Entries', null, 'default');
 			this.frm.change_custom_button_type('Allocate', null, 'default');
 		}
+
+		// check for any running reconciliation jobs
+		if (this.frm.doc.receivable_payable_account) {
+			this.frm.call({
+				'method': "erpnext.accounts.doctype.auto_reconcile.auto_reconcile.is_any_doc_running",
+				"args": {
+					for_filter: {
+						company: this.frm.doc.company,
+						party_type: this.frm.doc.party_type,
+						party: this.frm.doc.party,
+						receivable_payable_account: this.frm.doc.receivable_payable_account
+					}
+				}
+			}).then(r => {
+				if (r.message) {
+					let doc_link = frappe.utils.get_form_link("Auto Reconcile", r.message[0][0], true);
+					let msg = __("Auto Reconciliation Job: {0} is running for this party. Can't reconcile now.", [doc_link]);
+					this.frm.dashboard.add_comment(msg, "yellow");
+				}
+			});
+		}
+
 	}
 
 	company() {

erpnext/accounts/doctype/payment_reconciliation/payment_reconciliation.py

@@ -7,9 +7,10 @@
 from frappe.model.document import Document
 from frappe.query_builder.custom import ConstantColumn
 from frappe.query_builder.functions import IfNull
-from frappe.utils import flt, getdate, nowdate, today
+from frappe.utils import flt, get_link_to_form, getdate, nowdate, today
 
 import erpnext
+from erpnext.accounts.doctype.auto_reconcile.auto_reconcile import is_any_doc_running
 from erpnext.accounts.utils import (
 	QueryPaymentLedger,
 	get_outstanding_invoices,
@@ -297,6 +298,22 @@ def get_allocated_entry(self, pay, inv, allocated_amount):
 
 	@frappe.whitelist()
 	def reconcile(self):
+		running_doc = is_any_doc_running(
+			dict(
+				company=self.company,
+				party_type=self.party_type,
+				party=self.party,
+				receivable_payable_account=self.receivable_payable_account,
+			)
+		)
+		if running_doc:
+			frappe.throw(
+				_(
+					"An Auto Reconciliation Job {0} is running for the same filters. Cannot reconcile now"
+				).format(get_link_to_form("Auto Reconcile", running_doc[0][0]))
+			)
+			return
+
 		self.validate_allocation()
 		dr_or_cr = (
 			"credit_in_account_currency"