refactor: replace components context in app

Signed-off-by: Camila Belo <camilaibs@gmail.com>

packages/frontend-plugin-api/api-report.md

@@ -13,6 +13,7 @@ import { AnyApiRef } from '@backstage/core-plugin-api';
 import { ApiFactory } from '@backstage/core-plugin-api';
 import { ApiHolder } from '@backstage/core-plugin-api';
 import { ApiRef } from '@backstage/core-plugin-api';
+import { ApiRef as ApiRef_2 } from '@backstage/core-plugin-api/src/apis/system/types';
 import { ApiRefConfig } from '@backstage/core-plugin-api';
 import { AppTheme } from '@backstage/core-plugin-api';
 import { AppThemeApi } from '@backstage/core-plugin-api';
@@ -26,7 +27,6 @@ import { BackstagePlugin as BackstagePlugin_2 } from '@backstage/core-plugin-api
 import { BackstageUserIdentity } from '@backstage/core-plugin-api';
 import { bitbucketAuthApiRef } from '@backstage/core-plugin-api';
 import { bitbucketServerAuthApiRef } from '@backstage/core-plugin-api';
-import { ComponentRef as ComponentRef_2 } from '@backstage/frontend-plugin-api';
 import { ComponentType } from 'react';
 import { ConfigApi } from '@backstage/core-plugin-api';
 import { configApiRef } from '@backstage/core-plugin-api';
@@ -293,15 +293,14 @@ export type ComponentRef<T> = {
   T: T;
 };
 
-// @public (undocumented)
-export type ComponentsContextValue = Record<string, ComponentType<any>>;
+// @public
+export interface ComponentsApi {
+  // (undocumented)
+  getComponent<T>(ref: ComponentRef<T>): T;
+}
 
-// @public (undocumented)
-export function ComponentsProvider(
-  props: PropsWithChildren<{
-    value: ComponentsContextValue;
-  }>,
-): React_2.JSX.Element;
+// @public
+export const componentsApiRef: ApiRef_2<ComponentsApi>;
 
 export { ConfigApi };
 
@@ -910,12 +909,6 @@ export { useApi };
 
 export { useApiHolder };
 
-// @public (undocumented)
-export function useComponent<
-  P extends {},
-  T extends ComponentRef_2<ComponentType<P>>,
->(ref: T): T['T'];
-
 // @public
 export function useRouteRef<
   TOptional extends boolean,

packages/frontend-plugin-api/src/apis/definitions/ComponentsApi.ts

@@ -24,7 +24,7 @@ import { createApiRef } from '../system';
  */
 export interface ComponentsApi {
   // TODO: Should component refs also provide the default implementation so that we're guaranteed to get a component?
-  getComponent<T>(ref: ComponentRef<T>): T | undefined;
+  getComponent<T>(ref: ComponentRef<T>): T;
 }
 
 /**

packages/frontend-plugin-api/src/components/ComponentsContext.tsx

@@ -1,58 +0,0 @@
-/*
- * Copyright 2023 The Backstage Authors
- *
- * Licensed 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.
- */
-
-import { ComponentRef } from '@backstage/frontend-plugin-api';
-import {
-  createVersionedContext,
-  createVersionedValueMap,
-  useVersionedContext,
-} from '@backstage/version-bridge';
-import React from 'react';
-import { ComponentType, PropsWithChildren } from 'react';
-
-/** @public */
-export type ComponentsContextValue = Record<string, ComponentType<any>>;
-
-const ComponentsContext = createVersionedContext<{ 1: ComponentsContextValue }>(
-  'components-context',
-);
-
-/** @public */
-export function ComponentsProvider(
-  props: PropsWithChildren<{ value: ComponentsContextValue }>,
-) {
-  const { value, children } = props;
-  return (
-    <ComponentsContext.Provider value={createVersionedValueMap({ 1: value })}>
-      {children}
-    </ComponentsContext.Provider>
-  );
-}
-
-/** @public */
-export function useComponent<
-  P extends {},
-  T extends ComponentRef<ComponentType<P>>,
->(ref: T): T['T'] {
-  const components = useVersionedContext<{ 1: ComponentsContextValue }>(
-    'components-context',
-  );
-  const component = components?.atVersion(1)?.[ref.id];
-  if (!component) {
-    throw new Error(`No implementation available for ${ref.id}`);
-  }
-  return component;
-}

packages/frontend-plugin-api/src/components/index.ts

@@ -14,12 +14,6 @@
  * limitations under the License.
  */
 
-export {
-  ComponentsProvider,
-  useComponent,
-  type ComponentsContextValue,
-} from './ComponentsContext';
-
 export {
   coreProgressComponentRef,
   coreBootErrorPageComponentRef,