[WIP] Add inspector for VEGA

Closes: #31189

Author: alexwizp

src/plugins/data/public/search/aggs/buckets/terms.ts

@@ -129,7 +129,7 @@ export const getTermsBucketAgg = () =>
 
         const response = await nestedSearchSource.fetch({ abortSignal });
         request
-          .stats(getResponseInspectorStats(nestedSearchSource, response))
+          .stats(getResponseInspectorStats(response, nestedSearchSource))
           .ok({ json: response });
         resp = mergeOtherBucketAggResponse(aggConfigs, resp, response, aggConfig, filterAgg());
       }

src/plugins/data/public/search/expressions/esaggs.ts

@@ -175,7 +175,7 @@ const handleCourierRequest = async ({
 
       (searchSource as any).lastQuery = queryHash;
 
-      request.stats(getResponseInspectorStats(searchSource, response)).ok({ json: response });
+      request.stats(getResponseInspectorStats(response, searchSource)).ok({ json: response });
 
       (searchSource as any).rawResponse = response;
     } catch (e) {

src/plugins/data/public/search/expressions/utils/courier_inspector_stats.ts

@@ -61,10 +61,11 @@ export function getRequestInspectorStats(searchSource: ISearchSource) {
 
 /** @public */
 export function getResponseInspectorStats(
-  searchSource: ISearchSource,
-  resp: SearchResponse<unknown>
+  resp: SearchResponse<unknown>,
+  searchSource?: ISearchSource
 ) {
-  const lastRequest = searchSource.history && searchSource.history[searchSource.history.length - 1];
+  const lastRequest =
+    searchSource?.history && searchSource.history[searchSource.history.length - 1];
   const stats: RequestStatistics = {};
 
   if (resp && resp.took) {

src/plugins/discover/public/application/angular/discover.js

@@ -874,7 +874,7 @@ function discoverController(
   }
 
   function onResults(resp) {
-    inspectorRequest.stats(getResponseInspectorStats($scope.searchSource, resp)).ok({ json: resp });
+    inspectorRequest.stats(getResponseInspectorStats(resp, $scope.searchSource)).ok({ json: resp });
 
     if (getTimeField()) {
       const tabifiedData = tabifyAggResponse($scope.vis.data.aggs, resp);

src/plugins/discover/public/application/embeddable/search_embeddable.ts

@@ -307,7 +307,7 @@ export class SearchEmbeddable extends Embeddable<SearchInput, SearchOutput>
       this.updateOutput({ loading: false, error: undefined });
 
       // Log response to inspector
-      inspectorRequest.stats(getResponseInspectorStats(searchSource, resp)).ok({ json: resp });
+      inspectorRequest.stats(getResponseInspectorStats(resp, searchSource)).ok({ json: resp });
 
       // Apply the changes to the angular scope
       this.searchScope.$apply(() => {

src/plugins/expressions/common/execution/execution.ts

@@ -23,7 +23,7 @@ import { createExecutionContainer, ExecutionContainer } from './container';
 import { createError } from '../util';
 import { Defer, now } from '../../../kibana_utils/common';
 import { toPromise } from '../../../data/common/utils/abort_utils';
-import { RequestAdapter, DataAdapter } from '../../../inspector/common';
+import { RequestAdapter, DataAdapter, Adapters } from '../../../inspector/common';
 import { isExpressionValueError, ExpressionValueError } from '../expression_types/specs/error';
 import {
   ExpressionAstExpression,
@@ -70,7 +70,7 @@ export class Execution<
   ExtraContext extends Record<string, unknown> = Record<string, unknown>,
   Input = unknown,
   Output = unknown,
-  InspectorAdapters = ExtraContext['inspectorAdapters'] extends object
+  InspectorAdapters extends Adapters = ExtraContext['inspectorAdapters'] extends object
     ? ExtraContext['inspectorAdapters']
     : DefaultInspectorAdapters
 > {

src/plugins/expressions/common/execution/types.ts

@@ -18,15 +18,15 @@
  */
 
 import { ExpressionType } from '../expression_types';
-import { DataAdapter, RequestAdapter } from '../../../inspector/common';
+import { Adapters, DataAdapter, RequestAdapter } from '../../../inspector/common';
 import { TimeRange, Query, Filter } from '../../../data/common';
 import { SavedObject, SavedObjectAttributes } from '../../../../core/public';
 
 /**
  * `ExecutionContext` is an object available to all functions during a single execution;
  * it provides various methods to perform side-effects.
  */
-export interface ExecutionContext<Input = unknown, InspectorAdapters = DefaultInspectorAdapters> {
+export interface ExecutionContext<Input = unknown, InspectorAdapters extends Adapters = Adapters> {
   /**
    * Get initial input with which execution started.
    */
@@ -75,7 +75,7 @@ export interface ExecutionContext<Input = unknown, InspectorAdapters = DefaultIn
 /**
  * Default inspector adapters created if inspector adapters are not set explicitly.
  */
-export interface DefaultInspectorAdapters {
+export interface DefaultInspectorAdapters extends Adapters {
   requests: RequestAdapter;
   data: DataAdapter;
 }

src/plugins/inspector/common/adapters/index.ts

@@ -17,5 +17,12 @@
  * under the License.
  */
 
+export { Adapters } from './types';
 export { DataAdapter, FormattedData } from './data';
-export { RequestAdapter, RequestStatistic, RequestStatistics, RequestStatus } from './request';
+export {
+  RequestAdapter,
+  RequestStatistic,
+  RequestStatistics,
+  RequestStatus,
+  RequestResponder,
+} from './request';

src/plugins/inspector/common/adapters/request/index.ts

@@ -19,3 +19,4 @@
 
 export { RequestStatistic, RequestStatistics, RequestStatus } from './types';
 export { RequestAdapter } from './request_adapter';
+export { RequestResponder } from './request_responder';

src/plugins/inspector/common/adapters/types.ts

@@ -0,0 +1,25 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ * The interface that the adapters used to open an inspector have to fullfill.
+ */
+export interface Adapters {
+  [key: string]: any;
+}