[SLM] Hide system indices in snapshot restore flow (#123365)

* Dedupe system indices from indices array

* commit using @elastic.co

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

x-pack/plugins/snapshot_restore/common/lib/snapshot_serialization.test.ts

@@ -18,7 +18,7 @@ describe('Snapshot serialization and deserialization', () => {
             repository: 'repositoryName',
             version_id: 5,
             version: 'version',
-            indices: ['index2', 'index3', 'index1'],
+            indices: ['index2', 'index3', 'index1', '.kibana'],
             include_global_state: false,
             state: 'SUCCESS',
             start_time: '0',
@@ -31,6 +31,12 @@ describe('Snapshot serialization and deserialization', () => {
               failed: 1,
               successful: 2,
             },
+            feature_states: [
+              {
+                feature_name: 'kibana',
+                indices: ['.kibana'],
+              },
+            ],
             failures: [
               {
                 index: 'z',
@@ -71,6 +77,12 @@ describe('Snapshot serialization and deserialization', () => {
                 failed: 1,
                 successful: 2,
               },
+              feature_states: [
+                {
+                  feature_name: 'kibana',
+                  indices: ['.kibana'],
+                },
+              ],
               failures: [
                 {
                   index: 'z',
@@ -98,7 +110,7 @@ describe('Snapshot serialization and deserialization', () => {
         uuid: 'UUID',
         versionId: 5,
         version: 'version',
-        // Indices are sorted.
+        // Indices are sorted and dont include any of the system indices listed in feature_state
         indices: ['index1', 'index2', 'index3'],
         dataStreams: [],
         includeGlobalState: false,

x-pack/plugins/snapshot_restore/common/lib/snapshot_serialization.ts

@@ -6,6 +6,7 @@
  */
 
 import { sortBy } from 'lodash';
+import { flow, map, flatten, uniq } from 'lodash/fp';
 
 import {
   SnapshotDetails,
@@ -20,6 +21,19 @@ import { deserializeTime, serializeTime } from './time_serialization';
 
 import { csvToArray } from './utils';
 
+export const convertFeaturesToIndicesArray = (
+  features: SnapshotDetailsEs['feature_states']
+): string[] => {
+  return flow(
+    // Map each feature into Indices[]
+    map('indices'),
+    // Flatten the array
+    flatten,
+    // And finally dedupe the indices
+    uniq
+  )(features);
+};
+
 export function deserializeSnapshotDetails(
   snapshotDetailsEs: SnapshotDetailsEs,
   managedRepository?: string,
@@ -46,21 +60,27 @@ export function deserializeSnapshotDetails(
     duration_in_millis: durationInMillis,
     failures = [],
     shards,
+    feature_states: featureStates = [],
     metadata: { policy: policyName } = { policy: undefined },
   } = snapshotDetailsEs;
 
+  const systemIndices = convertFeaturesToIndicesArray(featureStates);
+  const snapshotIndicesWithoutSystemIndices = indices
+    .filter((index) => !systemIndices.includes(index))
+    .sort();
+
   // If an index has multiple failures, we'll want to see them grouped together.
-  const indexToFailuresMap = failures.reduce((map, failure) => {
+  const indexToFailuresMap = failures.reduce((aggregation, failure) => {
     const { index, ...rest } = failure;
-    if (!map[index]) {
-      map[index] = {
+    if (!aggregation[index]) {
+      aggregation[index] = {
         index,
         failures: [],
       };
     }
 
-    map[index].failures.push(rest);
-    return map;
+    aggregation[index].failures.push(rest);
+    return aggregation;
   }, {});
 
   // Sort all failures by their shard.
@@ -80,7 +100,7 @@ export function deserializeSnapshotDetails(
     uuid,
     versionId,
     version,
-    indices: [...indices].sort(),
+    indices: snapshotIndicesWithoutSystemIndices,
     dataStreams: [...dataStreams].sort(),
     includeGlobalState,
     state,

x-pack/plugins/snapshot_restore/common/types/snapshot.ts

@@ -68,6 +68,10 @@ export interface SnapshotDetailsEs {
   duration_in_millis: number;
   failures: any[];
   shards: SnapshotDetailsShardsStatusEs;
+  feature_states: Array<{
+    feature_name: string;
+    indices: string[];
+  }>;
   metadata?: {
     policy: string;
     [key: string]: any;