[ML] Transform: Fix transform wizard query autocomplete. (elastic#57833)

Fixes a regression introduced by elastic#56358. We're reusing the KqlFilterBar from the ML plugin in the transform plugin and missed updating the dependency management. Note this PR is only about fixing that regression. Future work on NP migration should take care of cleaning up the dependency management in the transforms plugin in general.

x-pack/legacy/plugins/transform/public/app/app_dependencies.tsx

@@ -7,13 +7,35 @@
 import React, { createContext, useContext, ReactNode } from 'react';
 import { HashRouter } from 'react-router-dom';
 
+import chrome from 'ui/chrome';
+import { metadata } from 'ui/metadata';
+
 import { API_BASE_PATH } from '../../common/constants';
-import { AuthorizationProvider } from './lib/authorization';
+
+import { setDependencyCache } from '../shared_imports';
 import { AppDependencies } from '../shim';
 
+import { AuthorizationProvider } from './lib/authorization';
+
+const legacyBasePath = {
+  prepend: chrome.addBasePath,
+  get: chrome.getBasePath,
+  remove: () => {},
+};
+const legacyDocLinks = {
+  ELASTIC_WEBSITE_URL: 'https://www.elastic.co/',
+  DOC_LINK_VERSION: metadata.branch,
+};
+
 let DependenciesContext: React.Context<AppDependencies>;
 
 const setAppDependencies = (deps: AppDependencies) => {
+  setDependencyCache({
+    autocomplete: deps.plugins.data.autocomplete,
+    docLinks: legacyDocLinks as any,
+    basePath: legacyBasePath as any,
+    XSRF: chrome.getXsrfToken(),
+  });
   DependenciesContext = createContext<AppDependencies>(deps);
   return DependenciesContext.Provider;
 };

x-pack/legacy/plugins/transform/public/plugin.ts

@@ -35,12 +35,13 @@ export class Plugin {
       savedObjects,
       overlays,
     } = core;
-    const { management, savedSearches: coreSavedSearches, uiMetric } = plugins;
+    const { data, management, savedSearches: coreSavedSearches, uiMetric } = plugins;
 
     // AppCore/AppPlugins to be passed on as React context
-    const AppDependencies = {
+    const appDependencies = {
       core: { chrome, http, i18n: core.i18n, uiSettings, savedObjects, overlays },
       plugins: {
+        data,
         management: { sections: management.sections },
         savedSearches: coreSavedSearches,
       },
@@ -113,7 +114,7 @@ export class Plugin {
           unmountReactApp();
           const elem = document.getElementById(REACT_ROOT_ID);
           if (elem) {
-            renderReact(elem, AppDependencies);
+            renderReact(elem, appDependencies);
           }
         });
       },

x-pack/legacy/plugins/transform/public/shared_imports.ts

@@ -32,5 +32,8 @@ export {
   SORT_DIRECTION,
 } from '../../ml/public/application/components/ml_in_memory_table';
 
+// Needs to be imported because we're reusing KqlFilterBar which depends on it.
+export { setDependencyCache } from '../../ml/public/application/util/dependency_cache';
+
 // @ts-ignore: could not find declaration file for module
 export { KqlFilterBar } from '../../ml/public/application/components/kql_filter_bar';

x-pack/legacy/plugins/transform/public/shim.ts

@@ -26,6 +26,7 @@ export type AppCore = Pick<
 >;
 
 export interface AppPlugins {
+  data: DataPublicPluginStart;
   management: {
     sections: typeof management;
   };