refactor code

x-pack/legacy/plugins/uptime/server/lib/adapters/monitor_states/search/query_context.ts

@@ -96,8 +96,8 @@ export class QueryContext {
     // only slower, but only marginally so, and prevents people from seeing weird
     // behavior.
 
-    const tsStart = parseRelativeEndDate(this.dateRangeEnd)!.subtract(5, 'minutes');
     const tsEnd = parseRelativeEndDate(this.dateRangeEnd)!;
+    const tsStart = tsEnd.subtract(5, 'minutes');
 
     return {
       range: {

x-pack/legacy/plugins/uptime/server/lib/helper/get_histogram_interval.ts

@@ -7,12 +7,12 @@
 import DateMath from '@elastic/datemath';
 import { QUERY } from '../../../common/constants';
 
-export const parseRelativeEndDate = (_dateEnd: string) => {
+export const parseRelativeEndDate = (dateEndStr: string) => {
   // We need this this parsing because if user selects This week or this date
   // That represents end date in future, if week or day is still in the middle
   // Uptime data can never be collected in future, so we will reset end date to now
   // in That case. Example case we select this week range will be to='now/w' and from = 'now/w';
-  const dateEnd = DateMath.parse(_dateEnd, { roundUp: true });
+  const dateEnd = DateMath.parse(dateEndStr, { roundUp: true });
   const dateEndTimestamp = dateEnd?.valueOf() ?? 0;
   if (dateEndTimestamp > Date.now()) {
     return DateMath.parse('now');