feat(FinancialReports): add alert cost compute transactions is running.

client/src/containers/FinancialStatements/BalanceSheet/components.js

@@ -0,0 +1,36 @@
+import React from 'react';
+import { Button } from '@blueprintjs/core';
+import { Icon, If } from 'components';
+import { useBalanceSheetContext } from './BalanceSheetProvider';
+
+/**
+ * Balance sheet alerts.
+ */
+export function BalanceSheetAlerts() {
+  const {
+    isLoading,
+    refetchBalanceSheet,
+    balanceSheet,
+  } = useBalanceSheetContext();
+
+  // Handle recalculate the report button.
+  const handleRecalcReport = () => {
+    refetchBalanceSheet();
+  };
+  // Can't display any error if the report is loading.
+  if (isLoading) { return null; }
+
+  return (
+    <If condition={balanceSheet.meta.is_cost_compute_running}>
+      <div class="alert-compute-running">
+        <Icon icon="info-block" iconSize={12} /> Just a moment! We're
+        calculating your cost transactions and this doesn't take much time.
+        Please check after sometime.{' '}
+
+        <Button onClick={handleRecalcReport} minimal={true} small={true}>
+          Refresh
+        </Button>
+      </div>
+    </If>
+  );
+}