[TwitchExtensionVersion] New badge (#6900)

* Create Twitch Extension Version badge

* skip tests when there's no token

* use renderVersionBadge

* improve joi schema

Co-authored-by: repo-ranger[bot] <39074581+repo-ranger[bot]@users.noreply.github.com>

services/twitch/twitch-extension-version.service.js

@@ -0,0 +1,51 @@
+import Joi from 'joi'
+import { renderVersionBadge } from '../version.js'
+import TwitchBase from './twitch-base.js'
+
+const helixSchema = Joi.object({
+  data: Joi.array()
+    .items(Joi.object({ version: Joi.string().required() }).required())
+    .min(1)
+    .required(),
+})
+
+export default class TwitchExtensionVersion extends TwitchBase {
+  static category = 'version'
+
+  static route = {
+    base: 'twitch/extension/v',
+    pattern: ':extensionId',
+  }
+
+  static examples = [
+    {
+      title: 'Twitch Extension Version',
+      namedParams: {
+        extensionId: '2nq5cu1nc9f4p75b791w8d3yo9d195',
+      },
+      staticPreview: renderVersionBadge({ version: '1.0.0' }),
+    },
+  ]
+
+  static defaultBadgeData = {
+    label: 'twitch extension',
+  }
+
+  async fetch({ extensionId }) {
+    const data = this._requestJson({
+      schema: helixSchema,
+      url: `https://api.twitch.tv/helix/extensions/released`,
+      options: {
+        qs: { extension_id: extensionId },
+      },
+    })
+
+    return data
+  }
+
+  async handle({ extensionId }) {
+    const data = await this.fetch({ extensionId })
+
+    return renderVersionBadge({ version: data.data[0].version })
+  }
+}

services/twitch/twitch-extension-version.tester.js

@@ -0,0 +1,16 @@
+import { isSemver } from '../test-validators.js'
+import { createServiceTester } from '../tester.js'
+import { noToken } from '../test-helpers.js'
+import _noTwitchToken from './twitch.service.js'
+const noTwitchToken = noToken(_noTwitchToken)
+export const t = await createServiceTester()
+
+t.create('gets the released version of Schedule with Google Calendar')
+  .skipWhen(noTwitchToken)
+  .get('/2nq5cu1nc9f4p75b791w8d3yo9d195.json')
+  .expectBadge({ label: 'twitch extension', message: isSemver })
+
+t.create('invalid extension id')
+  .skipWhen(noTwitchToken)
+  .get('/will-never-exist.json')
+  .expectBadge({ label: 'twitch extension', message: 'not found' })