fix for quickrange to use datemath to parse datetime strings (#6782)

provides a formatting util function meant to convert quick range time (such as 'now-15m') to datetimes that can be understood.

Signed-off-by: Paul Sebastian <[email protected]>

---------

Signed-off-by: Paul Sebastian <[email protected]>
Co-authored-by: opensearch-changeset-bot[bot] <154024398+opensearch-changeset-bot[bot]@users.noreply.github.com>

changelogs/fragments/6782.yml

@@ -0,0 +1,2 @@
+fix:
+- Quickrange selection fix ([#6782](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/6782))

src/plugins/data/common/data_frames/data_frame_utils.test.ts

@@ -0,0 +1,31 @@
+/*
+ * Copyright OpenSearch Contributors
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { TimeRange } from '../types';
+import { formatTimePickerDate } from './utils';
+
+describe('Data Frame Utils', () => {
+  describe('formatTimePickerDate function', () => {
+    Date.now = jest.fn(() => new Date('2024-05-04T12:30:00.000Z'));
+
+    test('should return a correctly formatted date', () => {
+      const range = { from: 'now-15m', to: 'now' } as TimeRange;
+      const formattedDate = formatTimePickerDate(range, 'YYYY-MM-DD HH:mm:ss.SSS');
+      expect(formattedDate).toStrictEqual({
+        fromDate: '2024-05-04 12:15:00.000',
+        toDate: '2024-05-04 12:30:00.000',
+      });
+    });
+
+    test('should indicate invalid when given bad dates', () => {
+      const range = { from: 'fake', to: 'date' } as TimeRange;
+      const formattedDate = formatTimePickerDate(range, 'YYYY-MM-DD HH:mm:ss.SSS');
+      expect(formattedDate).toStrictEqual({
+        fromDate: 'Invalid date',
+        toDate: 'Invalid date',
+      });
+    });
+  });
+});

src/plugins/data/common/data_frames/utils.ts

@@ -17,7 +17,7 @@ import {
 import { IFieldType } from './fields';
 import { IndexPatternFieldMap, IndexPatternSpec } from '../index_patterns';
 import { IOpenSearchDashboardsSearchRequest } from '../search';
-import { GetAggTypeFn, GetDataFrameAggQsFn } from '../types';
+import { GetAggTypeFn, GetDataFrameAggQsFn, TimeRange } from '../types';
 
 /**
  * Returns the raw data frame from the search request.
@@ -290,6 +290,27 @@ export const getTimeField = (
     : fields.find((field) => field.type === 'date');
 };
 
+/**
+ * Parses timepicker datetimes using datemath package. Will attempt to parse strings such as
+ * "now - 15m"
+ *
+ * @param dateRange - of type TimeRange
+ * @param dateFormat - formatting string (should work with Moment)
+ * @returns object with `fromDate` and `toDate` strings, both of which will be in utc time and formatted to
+ * the `dateFormat` parameter
+ */
+export const formatTimePickerDate = (dateRange: TimeRange, dateFormat: string) => {
+  const dateMathParse = (date: string) => {
+    const parsedDate = datemath.parse(date);
+    return parsedDate ? parsedDate.utc().format(dateFormat) : '';
+  };
+
+  const fromDate = dateMathParse(dateRange.from);
+  const toDate = dateMathParse(dateRange.to);
+
+  return { fromDate, toDate };
+};
+
 /**
  * Checks if the value is a GeoPoint. Expects an object with lat and lon properties.
  *