Add [Coderabbit] PR Stats service and tests

services/coderabbit/coderabbit-stats.service.js

@@ -0,0 +1,57 @@
+import Joi from 'joi'
+import { BaseJsonService } from '../index.js'
+
+const schema = Joi.object({
+  prCount: Joi.number().required(),
+}).required()
+
+// Note: Service name must match file name without '.service.js'
+class CoderabbitStats extends BaseJsonService {
+  static category = 'analysis'
+  static route = {
+    base: 'coderabbit',
+    pattern: 'stats/:provider/:org/:repo',
+  }
+
+  static examples = [
+    {
+      title: 'CodeRabbit PR Stats',
+      namedParams: {
+        provider: 'github',
+        org: 'coderabbit-ai',
+        repo: 'demo-repository',
+      },
+      staticPreview: this.render({
+        prCount: 100,
+      }),
+    },
+  ]
+
+  static defaultBadgeData = {
+    label: 'coderabbit reviews',
+  }
+
+  static render({ prCount }) {
+    return {
+      message: `${prCount} PRs`,
+      color: 'blue',
+    }
+  }
+
+  async fetch({ provider, org, repo }) {
+    return this._requestJson({
+      schema,
+      url: `https://api.coderabbit.ai/stats/${provider}/${org}/${repo}`,
+      httpErrors: {
+        404: 'repository not found',
+      },
+    })
+  }
+
+  async handle({ provider, org, repo }) {
+    const data = await this.fetch({ provider, org, repo })
+    return this.constructor.render(data)
+  }
+}
+
+export default CoderabbitStats

services/coderabbit/coderabbit-stats.tester.js

@@ -0,0 +1,42 @@
+import { createServiceTester } from '../tester.js'
+
+export const t = await createServiceTester()
+
+t.create('CoderabbitStats valid repo')
+  .get('/stats/github/coderabbit-ai/demo-repository.json')
+  .intercept(nock =>
+    nock('https://api.coderabbit.ai')
+      .get('/stats/github/coderabbit-ai/demo-repository')
+      .reply(200, { prCount: 42 }),
+  )
+  .expectBadge({
+    label: 'coderabbit reviews',
+    message: '42 PRs',
+    color: 'blue',
+  })
+
+t.create('CoderabbitStats repo not found')
+  .get('/stats/github/not-valid/not-found.json')
+  .intercept(nock =>
+    nock('https://api.coderabbit.ai')
+      .get('/stats/github/not-valid/not-found')
+      .reply(404),
+  )
+  .expectBadge({
+    label: 'coderabbit reviews',
+    message: 'repository not found',
+    color: 'red',
+  })
+
+t.create('CoderabbitStats server error')
+  .get('/stats/github/coderabbit-ai/error-repo.json')
+  .intercept(nock =>
+    nock('https://api.coderabbit.ai')
+      .get('/stats/github/coderabbit-ai/error-repo')
+      .reply(500),
+  )
+  .expectBadge({
+    label: 'coderabbit reviews',
+    message: 'inaccessible',
+    color: 'lightgrey', // Changed from 'red' to 'lightgrey'
+  })