feat: add [GitlabStars] service (#8209)

* feat: add gitlab stars service

* add test case

* fix

* fix link

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

services/gitlab/gitlab-stars.service.js

@@ -0,0 +1,74 @@
+import Joi from 'joi'
+import { optionalUrl, nonNegativeInteger } from '../validators.js'
+import { metric } from '../text-formatters.js'
+import GitLabBase from './gitlab-base.js'
+
+const schema = Joi.object({
+  star_count: nonNegativeInteger,
+}).required()
+
+const queryParamSchema = Joi.object({
+  gitlab_url: optionalUrl,
+}).required()
+
+const documentation = `
+<p>
+  You may use your GitLab Project Id (e.g. 278964) or your Project Path (e.g. gitlab-org/gitlab ).
+  Note that only internet-accessible GitLab instances are supported, for example https://jihulab.com, https://gitlab.gnome.org, or https://gitlab.com/.
+</p>
+`
+
+export default class GitlabStars extends GitLabBase {
+  static category = 'social'
+
+  static route = {
+    base: 'gitlab/stars',
+    pattern: ':project+',
+    queryParamSchema,
+  }
+
+  static examples = [
+    {
+      title: 'GitLab stars',
+      namedParams: {
+        project: 'gitlab-org/gitlab',
+      },
+      queryParams: { gitlab_url: 'https://gitlab.com' },
+      staticPreview: {
+        label: 'stars',
+        message: '3.9k',
+        style: 'social',
+      },
+      documentation,
+    },
+  ]
+
+  static defaultBadgeData = { label: 'stars', namedLogo: 'gitlab' }
+
+  static render({ baseUrl, project, starCount }) {
+    return {
+      message: metric(starCount),
+      color: 'blue',
+      link: [`${baseUrl}/${project}`, `${baseUrl}/${project}/-/starrers`],
+    }
+  }
+
+  async fetch({ project, baseUrl }) {
+    // https://docs.gitlab.com/ee/api/projects.html#get-single-project
+    return super.fetch({
+      schema,
+      url: `${baseUrl}/api/v4/projects/${encodeURIComponent(project)}`,
+      errorMessages: {
+        404: 'project not found',
+      },
+    })
+  }
+
+  async handle({ project }, { gitlab_url: baseUrl = 'https://gitlab.com' }) {
+    const { star_count: starCount } = await this.fetch({
+      project,
+      baseUrl,
+    })
+    return this.constructor.render({ baseUrl, project, starCount })
+  }
+}

services/gitlab/gitlab-stars.tester.js

@@ -0,0 +1,35 @@
+import { isMetric } from '../test-validators.js'
+import { createServiceTester } from '../tester.js'
+
+export const t = await createServiceTester()
+
+t.create('Stars')
+  .get('/gitlab-org/gitlab.json')
+  .expectBadge({
+    label: 'stars',
+    message: isMetric,
+    color: 'blue',
+    link: [
+      'https://gitlab.com/gitlab-org/gitlab',
+      'https://gitlab.com/gitlab-org/gitlab/-/starrers',
+    ],
+  })
+
+t.create('Stars (self-managed)')
+  .get('/gitlab-cn/gitlab.json?gitlab_url=https://jihulab.com')
+  .expectBadge({
+    label: 'stars',
+    message: isMetric,
+    color: 'blue',
+    link: [
+      'https://jihulab.com/gitlab-cn/gitlab',
+      'https://jihulab.com/gitlab-cn/gitlab/-/starrers',
+    ],
+  })
+
+t.create('Stars (project not found)')
+  .get('/user1/gitlab-does-not-have-this-repo.json')
+  .expectBadge({
+    label: 'stars',
+    message: 'project not found',
+  })