In-chart "Explore underlying data" action telemetry (#74516)

* feat: 🎸 add telemetry for in-chart "Explore underlying data"

* refactor: 💡 use shared Config type from /common folder

* feat: 🎸 register usage collector

* chore: 🤖 upate telemetry schema

* fix: 🐛 use relative import for usage_collector

* fix: 🐛 use relative imports for core

* fix: 🐛 use relative import

Co-authored-by: Elastic Machine <elasticmachine@users.noreply.github.com>

src/plugins/telemetry/schema/oss_plugins.json

@@ -13,6 +13,19 @@
         }
       }
     },
+    "search": {
+      "properties": {
+        "successCount": {
+          "type": "number"
+        },
+        "errorCount": {
+          "type": "number"
+        },
+        "averageDuration": {
+          "type": "long"
+        }
+      }
+    },
     "sample-data": {
       "properties": {
         "installed": {

x-pack/plugins/discover_enhanced/common/config.ts

@@ -0,0 +1,9 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+export interface Config {
+  actions: { exploreDataInChart: { enabled: boolean } };
+}

x-pack/plugins/discover_enhanced/common/index.ts

@@ -0,0 +1,7 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+export * from './config';

x-pack/plugins/discover_enhanced/kibana.json

@@ -5,7 +5,7 @@
   "server": true,
   "ui": true,
   "requiredPlugins": ["uiActions", "embeddable", "discover"],
-  "optionalPlugins": ["share", "kibanaLegacy"],
+  "optionalPlugins": ["share", "kibanaLegacy", "usageCollection"],
   "configPath": ["xpack", "discoverEnhanced"],
   "requiredBundles": ["kibanaUtils", "data"]
 }

x-pack/plugins/discover_enhanced/public/plugin.ts

@@ -28,6 +28,7 @@ import {
   ACTION_EXPLORE_DATA_CHART,
   ExploreDataChartActionContext,
 } from './actions';
+import { Config } from '../common';
 
 declare module '../../../../src/plugins/ui_actions/public' {
   export interface ActionContextMapping {
@@ -55,10 +56,10 @@ export interface DiscoverEnhancedStartDependencies {
 export class DiscoverEnhancedPlugin
   implements
     Plugin<void, void, DiscoverEnhancedSetupDependencies, DiscoverEnhancedStartDependencies> {
-  public readonly config: { actions: { exploreDataInChart: { enabled: boolean } } };
+  public readonly config: Config;
 
   constructor(protected readonly context: PluginInitializerContext) {
-    this.config = context.config.get();
+    this.config = context.config.get<Config>();
   }
 
   setup(

x-pack/plugins/discover_enhanced/server/index.ts

@@ -4,9 +4,9 @@
  * you may not use this file except in compliance with the Elastic License.
  */
 
+import { PluginInitializerContext } from '../../../../src/core/server';
+import { DiscoverEnhancedPlugin } from './plugin';
+
 export { config } from './config';
 
-export const plugin = () => ({
+export const plugin = (context: PluginInitializerContext) => new DiscoverEnhancedPlugin(context);
-  setup() {},
-  start() {},
-});

x-pack/plugins/discover_enhanced/server/plugin.ts

@@ -0,0 +1,58 @@
+/*
+ * Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
+ * or more contributor license agreements. Licensed under the Elastic License;
+ * you may not use this file except in compliance with the Elastic License.
+ */
+
+import { Observable } from 'rxjs';
+import { take } from 'rxjs/operators';
+import {
+  CoreSetup,
+  CoreStart,
+  Plugin,
+  PluginInitializerContext,
+} from '../../../../src/core/server';
+import { UsageCollectionSetup } from '../../../../src/plugins/usage_collection/server';
+import { Config } from '../common';
+
+interface SetupDependencies {
+  usageCollection?: UsageCollectionSetup;
+}
+
+interface StartDependencies {
+  usageCollection?: unknown;
+}
+
+export class DiscoverEnhancedPlugin
+  implements Plugin<void, void, SetupDependencies, StartDependencies> {
+  private config$: Observable<Config>;
+
+  constructor(protected readonly context: PluginInitializerContext) {
+    this.config$ = context.config.create<Config>();
+  }
+
+  public setup(core: CoreSetup, { usageCollection }: SetupDependencies) {
+    if (!!usageCollection) {
+      const collector = usageCollection.makeUsageCollector<{
+        exploreDataInChartActionEnabled: boolean;
+      }>({
+        type: 'discoverEnhanced',
+        schema: {
+          exploreDataInChartActionEnabled: {
+            type: 'boolean',
+          },
+        },
+        isReady: () => true,
+        fetch: async () => {
+          const config = await this.config$.pipe(take(1)).toPromise();
+          return {
+            exploreDataInChartActionEnabled: config.actions.exploreDataInChart.enabled,
+          };
+        },
+      });
+      usageCollection.registerCollector(collector);
+    }
+  }
+
+  public start(core: CoreStart) {}
+}

x-pack/plugins/telemetry_collection_xpack/schema/xpack_plugins.json

@@ -7,6 +7,13 @@
         }
       }
     },
+    "discoverEnhanced": {
+      "properties": {
+        "exploreDataInChartActionEnabled": {
+          "type": "boolean"
+        }
+      }
+    },
     "app_search": {
       "properties": {
         "ui_viewed": {