From 5a36bf69b848315cc3c3999d97abd9173c1eb457 Mon Sep 17 00:00:00 2001
From: Melissa Alvarez <melissa.alvarez@elastic.co>
Date: Tue, 19 Mar 2019 15:32:47 -0400
Subject: [PATCH] [ML] Anomaly explorer clear filter when switching to jobs
 with no influencers (#33512) (#33529)

* Remove race condition: trigger reload if job selection not in progress

* clear filter on job change when no influencers

* remove commented code

* update indexPattern comment for clarity
---
 x-pack/plugins/ml/public/explorer/explorer.js | 65 ++++++++++++-------
 .../ml/public/explorer/explorer_controller.js | 16 ++++-
 2 files changed, 54 insertions(+), 27 deletions(-)

diff --git a/x-pack/plugins/ml/public/explorer/explorer.js b/x-pack/plugins/ml/public/explorer/explorer.js
index 9fc8ebec88ad0..4b18b16aea756 100644
--- a/x-pack/plugins/ml/public/explorer/explorer.js
+++ b/x-pack/plugins/ml/public/explorer/explorer.js
@@ -246,32 +246,49 @@ export const Explorer = injectI18n(injectObservablesAsProps(
 
         // Listen for changes to job selection.
         if (action === EXPLORER_ACTION.JOB_SELECTION_CHANGE) {
-          const { selectedJobs } = payload;
-          const stateUpdate = {
-            noInfluencersConfigured: (getInfluencers(selectedJobs).length === 0),
-            selectedJobs,
-          };
-
-          const indexPattern = await this.getIndexPattern(selectedJobs);
-          stateUpdate.indexPattern = indexPattern;
-
-          this.props.appStateHandler(APP_STATE_ACTION.CLEAR_SELECTION);
-          Object.assign(stateUpdate, getClearedSelectedAnomaliesState());
+          this.setState(...getExplorerDefaultState(), async () => {
+            const { selectedJobs } = payload;
+            const stateUpdate = {
+              noInfluencersConfigured: (getInfluencers(selectedJobs).length === 0),
+              selectedJobs,
+            };
+
+            this.props.appStateHandler(APP_STATE_ACTION.CLEAR_SELECTION);
+            Object.assign(stateUpdate, getClearedSelectedAnomaliesState());
+            // clear filter if selected jobs have no influencers
+            if (stateUpdate.noInfluencersConfigured === true) {
+              this.props.appStateHandler(APP_STATE_ACTION.CLEAR_INFLUENCER_FILTER_SETTINGS);
+              const noFilterState = {
+                filterActive: false,
+                filteredFields: [],
+                influencersFilterQuery: undefined,
+                maskAll: false,
+                queryString: undefined
+              };
+
+              Object.assign(stateUpdate, noFilterState);
+            } else {
+              // indexPattern will not be used if there are no influencers so set up can be skipped
+              // indexPattern is passed to KqlFilterBar which is only shown if (noInfluencersConfigured === false)
+              const indexPattern = await this.getIndexPattern(selectedJobs);
+              stateUpdate.indexPattern = indexPattern;
+            }
 
-          if (selectedJobs.length > 1) {
-            this.props.appStateHandler(
-              APP_STATE_ACTION.SAVE_SWIMLANE_VIEW_BY_FIELD_NAME,
-              { swimlaneViewByFieldName: VIEW_BY_JOB_LABEL },
-            );
-            stateUpdate.swimlaneViewByFieldName = VIEW_BY_JOB_LABEL;
-            // enforce a state update for swimlaneViewByFieldName
-            this.setState({ swimlaneViewByFieldName: VIEW_BY_JOB_LABEL }, () => {
-              this.updateExplorer(stateUpdate, true);
-            });
-            return;
-          }
+            if (selectedJobs.length > 1) {
+              this.props.appStateHandler(
+                APP_STATE_ACTION.SAVE_SWIMLANE_VIEW_BY_FIELD_NAME,
+                { swimlaneViewByFieldName: VIEW_BY_JOB_LABEL },
+              );
+              stateUpdate.swimlaneViewByFieldName = VIEW_BY_JOB_LABEL;
+              // enforce a state update for swimlaneViewByFieldName
+              this.setState({ swimlaneViewByFieldName: VIEW_BY_JOB_LABEL }, () => {
+                this.updateExplorer(stateUpdate, true);
+              });
+              return;
+            }
 
-          this.updateExplorer(stateUpdate, true);
+            this.updateExplorer(stateUpdate, true);
+          });
         }
 
         // RELOAD reloads full Anomaly Explorer and clears the selection.
diff --git a/x-pack/plugins/ml/public/explorer/explorer_controller.js b/x-pack/plugins/ml/public/explorer/explorer_controller.js
index 8d3c051eed98e..bb7e86a429aec 100644
--- a/x-pack/plugins/ml/public/explorer/explorer_controller.js
+++ b/x-pack/plugins/ml/public/explorer/explorer_controller.js
@@ -116,6 +116,8 @@ module.controller('MlExplorerController', function (
           filterData
         }
       });
+      $scope.jobSelectionUpdateInProgress = false;
+      $scope.$applyAsync();
     }
 
     // Populate the map of jobs / detectors / field formatters for the selected IDs.
@@ -196,19 +198,25 @@ module.controller('MlExplorerController', function (
   const explorerSubscriber = explorer$.subscribe(loadJobsListener);
 
   // Listen for changes to job selection.
+  $scope.jobSelectionUpdateInProgress = false;
   $scope.mlJobSelectService.listenJobSelectionChange($scope, (event, selectedJobIds) => {
+    $scope.jobSelectionUpdateInProgress = true;
     jobSelectionUpdate(EXPLORER_ACTION.JOB_SELECTION_CHANGE, { fullJobs: mlJobService.jobs, selectedJobIds });
   });
 
   // Refresh all the data when the time range is altered.
   $scope.$listenAndDigestAsync(timefilter, 'fetch', () => {
-    explorer$.next({ action: EXPLORER_ACTION.RELOAD });
+    if ($scope.jobSelectionUpdateInProgress === false) {
+      explorer$.next({ action: EXPLORER_ACTION.RELOAD });
+    }
   });
 
   // Add a watcher for auto-refresh of the time filter to refresh all the data.
   const refreshWatcher = Private(refreshIntervalWatcher);
   refreshWatcher.init(async () => {
-    explorer$.next({ action: EXPLORER_ACTION.RELOAD });
+    if ($scope.jobSelectionUpdateInProgress === false) {
+      explorer$.next({ action: EXPLORER_ACTION.RELOAD });
+    }
   });
 
   // Redraw the swimlane when the window resizes or the global nav is toggled.
@@ -230,7 +238,9 @@ module.controller('MlExplorerController', function (
   });
 
   function redrawOnResize() {
-    explorer$.next({ action: EXPLORER_ACTION.REDRAW });
+    if ($scope.jobSelectionUpdateInProgress === false) {
+      explorer$.next({ action: EXPLORER_ACTION.REDRAW });
+    }
   }
 
   $scope.appStateHandler = ((action, payload) => {