fix api reports + create StaticExploreToolProvider

Signed-off-by: Andrew Thauer <athauer@wealthsimple.com>

plugins/explore-backend/api-report.md

@@ -32,6 +32,14 @@ export interface RouterOptions {
   toolProvider: ExploreToolProvider;
 }
 
+// @public
+export class StaticExploreToolProvider implements ExploreToolProvider {
+  // (undocumented)
+  static fromData(tools: ExploreTool[]): StaticExploreToolProvider;
+  // (undocumented)
+  getTools(request: GetExploreToolsRequest): Promise<GetExploreToolsResponse>;
+}
+
 // @public
 export interface ToolDocument extends IndexableDocument, ExploreTool {}
 

plugins/explore-backend/src/index.ts

@@ -22,8 +22,9 @@
 
 export * from './search';
 export * from './service';
+export * from './tools';
 
 /**
  * @internal Example only - do not use in production
  */
-export { getExampleTools } from './example/getExampleTools';
+export { exampleTools } from './example/exampleTools';

plugins/explore-backend/src/service/index.ts

@@ -16,4 +16,3 @@
 
 export { createRouter } from './router';
 export type { RouterOptions } from './router';
-export * from './types';

plugins/explore-backend/src/service/router.test.ts

@@ -21,9 +21,8 @@ import {
 } from '@backstage/plugin-explore-common';
 import express from 'express';
 import request from 'supertest';
-
+import { ExploreToolProvider } from '../tools';
 import { createRouter } from './router';
-import { ExploreToolProvider } from './types';
 
 const mockTools: ExploreTool[] = [
   { title: 'Tool 1', url: 'https://example.com/tool1', image: '' },

plugins/explore-backend/src/service/router.ts

@@ -19,7 +19,7 @@ import { GetExploreToolsRequest } from '@backstage/plugin-explore-common';
 import express from 'express';
 import Router from 'express-promise-router';
 import { Logger } from 'winston';
-import { ExploreToolProvider } from './types';
+import { ExploreToolProvider } from '../tools';
 
 /**
  * @public

plugins/explore-backend/src/tools/index.ts

@@ -0,0 +1,18 @@
+/*
+ * Copyright 2022 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.
+ */
+
+export { StaticExploreToolProvider } from './providers';
+export type { ExploreToolProvider } from './types';

plugins/explore-backend/src/tools/providers.test.ts

@@ -0,0 +1,85 @@
+/*
+ * Copyright 2022 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 { ExploreTool } from '@backstage/plugin-explore-common';
+import { StaticExploreToolProvider } from './providers';
+
+describe('StaticExploreToolProvider', () => {
+  const tool1: ExploreTool = {
+    title: 'Tool 1',
+    image: 'https://example/image.png',
+    url: 'https://example.com',
+    lifecycle: 'production',
+    tags: ['tag1', 'tag2'],
+  };
+  const tool2: ExploreTool = {
+    ...tool1,
+    title: 'Tool 2',
+    lifecycle: 'production',
+    tags: ['tag1'],
+  };
+  const tool3: ExploreTool = {
+    ...tool1,
+    title: 'Tool 3',
+    lifecycle: 'experimental',
+    tags: ['tag2'],
+  };
+  const allTools: ExploreTool[] = [tool1, tool2, tool3];
+
+  describe('getTools', () => {
+    it('returns a list of all tools', async () => {
+      const provider = StaticExploreToolProvider.fromData(allTools);
+
+      await expect(provider.getTools({})).resolves.toEqual({
+        tools: allTools,
+      });
+    });
+
+    it.each([
+      [['tag1'], [tool1, tool2]],
+      [['tag2'], [tool1, tool3]],
+      [[], allTools],
+    ])(
+      'returns % when filtered by tags %',
+      async (tagFilter, expectedTools) => {
+        const provider = StaticExploreToolProvider.fromData(allTools);
+
+        await expect(
+          provider.getTools({ filter: { tags: tagFilter } }),
+        ).resolves.toEqual({
+          tools: expectedTools,
+        });
+      },
+    );
+
+    it.each([
+      [['production'], [tool1, tool2]],
+      [['experimental'], [tool3]],
+      [[], allTools],
+    ])(
+      'returns % when filtered by lifecycle %',
+      async (lifecycleFilter, expectedTools) => {
+        const provider = StaticExploreToolProvider.fromData(allTools);
+
+        await expect(
+          provider.getTools({ filter: { lifecycle: lifecycleFilter } }),
+        ).resolves.toEqual({
+          tools: expectedTools,
+        });
+      },
+    );
+  });
+});

plugins/explore-backend/src/tools/providers.ts

@@ -1,5 +1,5 @@
 /*
- * Copyright 2020 The Backstage Authors
+ * Copyright 2022 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.
@@ -15,11 +15,12 @@
  */
 
 import {
+  ExploreTool,
   GetExploreToolsRequest,
   GetExploreToolsResponse,
 } from '@backstage/plugin-explore-common';
 import { intersection, isEmpty } from 'lodash';
-import { exampleTools } from './tools';
+import { ExploreToolProvider } from './types';
 
 const anyOf = <T>(prop: T | T[], matches: T[]) =>
   isEmpty(matches)
@@ -27,18 +28,32 @@ const anyOf = <T>(prop: T | T[], matches: T[]) =>
     : intersection([...[prop]].flat(), matches)?.length > 0;
 
 /**
- * @private Example only - do not use in production
+ * A basic ExploreToolProvider implementation using static data.
+ *
+ * @public
  */
-export async function getExampleTools(
-  request: GetExploreToolsRequest,
-): Promise<GetExploreToolsResponse> {
-  const { filter } = request ?? {};
-  const tags = filter?.tags ?? [];
-  const lifecycles = filter?.lifecycle ?? [];
+export class StaticExploreToolProvider implements ExploreToolProvider {
+  private readonly tools: ExploreTool[];
 
-  return {
-    tools: exampleTools.filter(
+  static fromData(tools: ExploreTool[]) {
+    return new StaticExploreToolProvider(tools);
+  }
+
+  private constructor(tools: ExploreTool[]) {
+    this.tools = tools;
+  }
+
+  async getTools(
+    request: GetExploreToolsRequest,
+  ): Promise<GetExploreToolsResponse> {
+    const { filter } = request ?? {};
+    const tags = filter?.tags ?? [];
+    const lifecycles = filter?.lifecycle ?? [];
+
+    const tools = this.tools.filter(
       t => anyOf(t.tags ?? [], tags) && anyOf(t.lifecycle ?? [], lifecycles),
-    ),
-  };
+    );
+
+    return { tools };
+  }
 }