make PluginConfig and dependent types public

packages/core-api/src/plugin/Plugin.tsx

@@ -14,54 +14,18 @@
  * limitations under the License.
  */
 
-import { ComponentType } from 'react';
 import {
+  PluginConfig,
   PluginOutput,
-  RoutePath,
-  RouteOptions,
-  FeatureFlagName,
   BackstagePlugin,
 } from './types';
 import { validateBrowserCompat, validateFlagName } from '../app/FeatureFlags';
-import { RouteRef } from '../routing';
 import { AnyApiFactory } from '../apis';
 
-export type PluginConfig = {
-  id: string;
-  apis?: Iterable<AnyApiFactory>;
-  register?(hooks: PluginHooks): void;
-};
-
-export type PluginHooks = {
-  router: RouterHooks;
-  featureFlags: FeatureFlagsHooks;
-};
-
-export type RouterHooks = {
-  addRoute(
-    target: RouteRef,
-    Component: ComponentType<any>,
-    options?: RouteOptions,
-  ): void;
-
-  /**
-   * @deprecated See the `addRoute` method
-   */
-  registerRoute(
-    path: RoutePath,
-    Component: ComponentType<any>,
-    options?: RouteOptions,
-  ): void;
-};
-
-export type FeatureFlagsHooks = {
-  register(name: FeatureFlagName): void;
-};
-
 export class PluginImpl {
   private storedOutput?: PluginOutput[];
 
-  constructor(private readonly config: PluginConfig) {}
+  constructor(private readonly config: PluginConfig) { }
 
   getId(): string {
     return this.config.id;

packages/core-api/src/plugin/types.ts

@@ -73,3 +73,35 @@ export type BackstagePlugin = {
   output(): PluginOutput[];
   getApis(): Iterable<AnyApiFactory>;
 };
+
+export type PluginConfig = {
+  id: string;
+  apis?: Iterable<AnyApiFactory>;
+  register?(hooks: PluginHooks): void;
+};
+
+export type PluginHooks = {
+  router: RouterHooks;
+  featureFlags: FeatureFlagsHooks;
+};
+
+export type RouterHooks = {
+  addRoute(
+    target: RouteRef,
+    Component: ComponentType<any>,
+    options?: RouteOptions,
+  ): void;
+
+  /**
+   * @deprecated See the `addRoute` method
+   */
+  registerRoute(
+    path: RoutePath,
+    Component: ComponentType<any>,
+    options?: RouteOptions,
+  ): void;
+};
+
+export type FeatureFlagsHooks = {
+  register(name: FeatureFlagName): void;
+};