[Discover] Fix csv export with relative time filter from discover main view (#123206)

* [Discover] fix relative time filter for csv export from discover main page

* [Discover] fix array assignment

* [Discover] fix functional test

* [Discover] add test coverage for the issue

* [Discover] add debug points for functional test

* [Discover] try to get clipboard permissions

* [Discover] fix functional test

* [Discover] apply suggestion

* [Discover] apply suggestion

* [Discover] apply naming suggestion

Co-authored-by: Kibana Machine <42973632+kibanamachine@users.noreply.github.com>

src/plugins/discover/public/application/main/services/discover_state.ts

@@ -315,7 +315,7 @@ export function setState(stateContainer: ReduxLikeStateContainer<AppState>, newS
 /**
  * Helper function to compare 2 different filter states
  */
-export function isEqualFilters(filtersA: Filter[], filtersB: Filter[]) {
+export function isEqualFilters(filtersA?: Filter[] | Filter, filtersB?: Filter[] | Filter) {
   if (!filtersA && !filtersB) {
     return true;
   } else if (!filtersA || !filtersB) {

src/plugins/discover/public/utils/get_sharing_data.ts

@@ -21,7 +21,7 @@ import {
 } from '../../common';
 import type { SavedSearch, SortOrder } from '../services/saved_searches';
 import { getSortForSearchSource } from '../components/doc_table';
-import { AppState } from '../application/main/services/discover_state';
+import { AppState, isEqualFilters } from '../application/main/services/discover_state';
 
 /**
  * Preparing data to share the current state as link or CSV/Report
@@ -34,7 +34,7 @@ export async function getSharingData(
   const { uiSettings: config, data } = services;
   const searchSource = currentSearchSource.createCopy();
   const index = searchSource.getField('index')!;
-  const existingFilter = searchSource.getField('filter');
+  let existingFilter = searchSource.getField('filter') as Filter[] | Filter | undefined;
 
   searchSource.setField(
     'sort',
@@ -62,11 +62,20 @@ export async function getSharingData(
     }
   }
 
+  const absoluteTimeFilter = data.query.timefilter.timefilter.createFilter(index);
+  const relativeTimeFilter = data.query.timefilter.timefilter.createRelativeFilter(index);
   return {
     getSearchSource: (absoluteTime?: boolean): SerializedSearchSourceFields => {
-      const timeFilter = absoluteTime
-        ? data.query.timefilter.timefilter.createFilter(index)
-        : data.query.timefilter.timefilter.createRelativeFilter(index);
+      const timeFilter = absoluteTime ? absoluteTimeFilter : relativeTimeFilter;
+
+      // remove timeFilter from existing filter
+      if (Array.isArray(existingFilter)) {
+        existingFilter = existingFilter.filter(
+          (current) => !isEqualFilters(current, absoluteTimeFilter)
+        );
+      } else if (isEqualFilters(existingFilter, absoluteTimeFilter)) {
+        existingFilter = undefined;
+      }
 
       if (existingFilter && timeFilter) {
         searchSource.setField(

x-pack/test/functional/apps/discover/reporting.ts

@@ -6,6 +6,7 @@
  */
 
 import expect from '@kbn/expect';
+import { Key } from 'selenium-webdriver';
 import moment from 'moment';
 import { FtrProviderContext } from '../../ftr_provider_context';
 
@@ -17,8 +18,10 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
   const kibanaServer = getService('kibanaServer');
   const browser = getService('browser');
   const retry = getService('retry');
-  const PageObjects = getPageObjects(['reporting', 'common', 'discover', 'timePicker']);
+  const PageObjects = getPageObjects(['reporting', 'common', 'discover', 'timePicker', 'share']);
   const filterBar = getService('filterBar');
+  const find = getService('find');
+  const testSubjects = getService('testSubjects');
 
   const setFieldsFromSource = async (setValue: boolean) => {
     await kibanaServer.uiSettings.update({ 'discover:searchFieldsFromSource': setValue });
@@ -76,6 +79,55 @@ export default function ({ getService, getPageObjects }: FtrProviderContext) {
         await PageObjects.discover.selectIndexPattern('ecommerce');
       });
 
+      it('generates a report with single timefilter', async () => {
+        await PageObjects.discover.clickNewSearchButton();
+        await PageObjects.timePicker.setCommonlyUsedTime('Last_24 hours');
+        await PageObjects.discover.saveSearch('single-timefilter-search');
+
+        // get shared URL value
+        await PageObjects.share.clickShareTopNavButton();
+        const sharedURL = await PageObjects.share.getSharedUrl();
+
+        // click 'Copy POST URL'
+        await PageObjects.share.clickShareTopNavButton();
+        await PageObjects.reporting.openCsvReportingPanel();
+        const advOpt = await find.byXPath(`//button[descendant::*[text()='Advanced options']]`);
+        await advOpt.click();
+        const postUrl = await find.byXPath(`//button[descendant::*[text()='Copy POST URL']]`);
+        await postUrl.click();
+
+        // get clipboard value using field search input, since
+        // 'browser.getClipboardValue()' doesn't work, due to permissions
+        const textInput = await testSubjects.find('fieldFilterSearchInput');
+        await textInput.click();
+        await browser.getActions().keyDown(Key.CONTROL).perform();
+        await browser.getActions().keyDown('v').perform();
+
+        const reportURL = decodeURIComponent(await textInput.getAttribute('value'));
+
+        // get number of filters in URLs
+        const timeFiltersNumberInReportURL =
+          reportURL.split('query:(range:(order_date:(format:strict_date_optional_time').length - 1;
+        const timeFiltersNumberInSharedURL = sharedURL.split('time:').length - 1;
+
+        expect(timeFiltersNumberInSharedURL).to.be(1);
+        expect(sharedURL.includes('time:(from:now-24h%2Fh,to:now))')).to.be(true);
+
+        expect(timeFiltersNumberInReportURL).to.be(1);
+        expect(
+          reportURL.includes(
+            'query:(range:(order_date:(format:strict_date_optional_time,gte:now-24h/h,lte:now))))'
+          )
+        ).to.be(true);
+
+        // return keyboard state
+        await browser.getActions().keyUp(Key.CONTROL).perform();
+        await browser.getActions().keyUp('v').perform();
+
+        //  return field search input state
+        await textInput.clearValue();
+      });
+
       it('generates a report from a new search with data: default', async () => {
         await PageObjects.discover.clickNewSearchButton();
         await PageObjects.reporting.setTimepickerInEcommerceDataRange();