[8.8] [Security Solution] Able to add Same Start Time and End Time in…

… Schedule for Snooze Notifications of Rule (#158565) (#159331)

# Backport

This will backport the following commits from `main` to `8.8`:
- [[Security Solution] Able to add Same Start Time and End Time in
Schedule for Snooze Notifications of Rule
(#158565)](#158565)

<!--- Backport version: 8.9.7 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT
[{"author":{"name":"GitStart","email":"[email protected]"},"sourceCommit":{"committedDate":"2023-06-08T15:57:03Z","message":"[Security
Solution] Able to add Same Start Time and End Time in Schedule for
Snooze Notifications of Rule (#158565)\n\n## What does this PR do?\r\n*
It doesn't allows the user to pick the same date and time in
the\r\nschedule component.\r\n\r\n## Issue References\r\n* Client:
https://github.com/elastic/kibana/issues/157865\r\n\r\n##
Video/Screenshot Demo \r\n\r\n######
FIX:\r\nhttps://www.loom.com/share/fc4a43eba71f485384621ecec457ce1a\r\n\r\n---\r\nThis
code was written and reviewed by GitStart Community. Growing
great\r\nengineers, one PR at a time.\r\n\r\nCo-authored-by:
KlingerMatheus <[email protected]>\r\nCo-authored-by:
gitstart_bot
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Solution] Able to add Same Start Time and End Time in Schedule for
Snooze Notifications of Rule (#158565)\n\n## What does this PR do?\r\n*
It doesn't allows the user to pick the same date and time in
the\r\nschedule component.\r\n\r\n## Issue References\r\n* Client:
https://github.com/elastic/kibana/issues/157865\r\n\r\n##
Video/Screenshot Demo \r\n\r\n######
FIX:\r\nhttps://www.loom.com/share/fc4a43eba71f485384621ecec457ce1a\r\n\r\n---\r\nThis
code was written and reviewed by GitStart Community. Growing
great\r\nengineers, one PR at a time.\r\n\r\nCo-authored-by:
KlingerMatheus <[email protected]>\r\nCo-authored-by:
gitstart_bot
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Solution] Able to add Same Start Time and End Time in Schedule for
Snooze Notifications of Rule (#158565)\n\n## What does this PR do?\r\n*
It doesn't allows the user to pick the same date and time in
the\r\nschedule component.\r\n\r\n## Issue References\r\n* Client:
https://github.com/elastic/kibana/issues/157865\r\n\r\n##
Video/Screenshot Demo \r\n\r\n######
FIX:\r\nhttps://www.loom.com/share/fc4a43eba71f485384621ecec457ce1a\r\n\r\n---\r\nThis
code was written and reviewed by GitStart Community. Growing
great\r\nengineers, one PR at a time.\r\n\r\nCo-authored-by:
KlingerMatheus <[email protected]>\r\nCo-authored-by:
gitstart_bot
<[email protected]>","sha":"d9eff3fd84c7eb9da0f3d3e1106d6054b3a4cad7"}},{"branch":"8.8","label":"v8.8.2","labelRegex":"^v(\\d+).(\\d+).\\d+$","isSourceBranch":false,"state":"NOT_CREATED"}]}]
BACKPORT-->

Co-authored-by: GitStart <[email protected]>

x-pack/plugins/triggers_actions_ui/public/application/sections/rules_list/components/rule_snooze/scheduler.tsx

@@ -200,7 +200,7 @@ const RuleSnoozeSchedulerPanel: React.FunctionComponent<PanelOpts> = ({
   );
   const selectEndDT = useCallback(
     (date) => {
-      setEndDT(date);
+      setEndDT(date.add(1, 'minutes'));
       setSelectingEndTime(true);
       setSelectingEndDate(false);
     },
@@ -210,8 +210,7 @@ const RuleSnoozeSchedulerPanel: React.FunctionComponent<PanelOpts> = ({
   const onSelectFromInline = useCallback(
     (date) => {
       const dateAsMoment = moment(date);
-      const newDateAfterStart =
-        !startDT || dateAsMoment.isAfter(startDT) || dateAsMoment.isSame(startDT);
+      const newDateAfterStart = !startDT || dateAsMoment.isSameOrAfter(startDT);
       const isEndDateTimeChange =
         dateAsMoment.isSame(endDT, 'day') && !dateAsMoment.isSame(endDT, 'minute');
       const isStartDateTimeChange =
@@ -309,7 +308,7 @@ const RuleSnoozeSchedulerPanel: React.FunctionComponent<PanelOpts> = ({
                 selected={endDT}
                 onChange={setEndDT}
                 minDate={startDT ?? minDate}
-                isInvalid={startDT?.isAfter(endDT)}
+                isInvalid={startDT?.isSameOrAfter(endDT)}
               />
             }
           />
@@ -376,7 +375,7 @@ const RuleSnoozeSchedulerPanel: React.FunctionComponent<PanelOpts> = ({
       <EuiButton
         fill
         fullWidth
-        disabled={!startDT || !endDT || startDT.isAfter(endDT) || startDT.isBefore(minDate)}
+        disabled={!startDT || !endDT || startDT.isSameOrAfter(endDT) || startDT.isBefore(minDate)}
         onClick={onClickSaveSchedule}
         isLoading={isLoading}
         data-test-subj="scheduler-saveSchedule"