feat: more work on form decorators

Signed-off-by: blam <ben@blam.sh>

packages/app/src/apis.ts

@@ -26,6 +26,9 @@ import {
   discoveryApiRef,
 } from '@backstage/core-plugin-api';
 import { AuthProxyDiscoveryApi } from './AuthProxyDiscoveryApi';
+import { formDecoratorsApiRef } from '@backstage/plugin-scaffolder/alpha';
+import { DefaultScaffolderFormDecoratorsApi } from '@backstage/plugin-scaffolder/alpha';
+import { mockDecorator } from './components/scaffolder/decorators';
 
 export const apis: AnyApiFactory[] = [
   createApiFactory({
@@ -39,5 +42,14 @@ export const apis: AnyApiFactory[] = [
     factory: ({ configApi }) => ScmIntegrationsApi.fromConfig(configApi),
   }),
 
+  createApiFactory({
+    api: formDecoratorsApiRef,
+    deps: {},
+    factory: () =>
+      DefaultScaffolderFormDecoratorsApi.create({
+        decorators: [mockDecorator],
+      }),
+  }),
+
   ScmAuth.createDefaultApiFactory(),
 ];

packages/app/src/components/scaffolder/decorators.ts

@@ -0,0 +1,33 @@
+/*
+ * Copyright 2024 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 { githubAuthApiRef } from '@backstage/core-plugin-api';
+import { createScaffolderFormDecorator } from '@backstage/plugin-scaffolder-react/alpha';
+
+export const mockDecorator = createScaffolderFormDecorator({
+  id: 'githubOauth',
+  schema: {
+    input: {
+      test: z => z.string(),
+    },
+  },
+  deps: {
+    githubApi: githubAuthApiRef,
+  },
+  fn: async ({ setSecrets }, { githubApi }) => {
+    const token = await githubApi.getAccessToken();
+    setSecrets(state => ({ ...state, GITHUB_TOKEN: token }));
+  },
+});