badge(shards): add Crystal shards service (#468)

* feat: add crystal shards service

* badge(shards): remove duplicated version example

Co-authored-by: Amio Jin <amio.cn@gmail.com>

api/shards.ts

@@ -0,0 +1,59 @@
+import got from '../libs/got'
+import { millify, version, versionColor } from '../libs/utils'
+import { createBadgenHandler, PathArgs } from '../libs/create-badgen-handler'
+
+const SHARDS_REPO_URL = 'https://shardbox.org/'
+
+const client = got.extend({ prefixUrl: SHARDS_REPO_URL })
+
+export default createBadgenHandler({
+  title: 'Crystal shards',
+  examples: {
+    '/shards/v/kemal': 'version',
+    '/shards/license/clear': 'license',
+    '/shards/crystal/amber': 'crystal version',
+    '/shards/dependents/lucky': 'dependents'
+  },
+  handlers: {
+    '/shards/:topic<v|license|crystal|dependents>/:shard': handler
+  }
+})
+
+async function handler({ topic, shard }: PathArgs) {
+  const html = await client.get(`shards/${shard}`).text()
+
+  switch (topic) {
+    case 'v':
+      const ver = html.match(/class="version">([^<]+)<\//i)?.[1].trim()
+      return {
+        subject: 'shards',
+        status: version(ver),
+        color: versionColor(ver)
+      }
+    case 'license': {
+      const license = html.match(/opensource.org\/licenses\/[^>]+?>([^<]+)<\//i)?.[1].trim()
+      return {
+        subject: 'license',
+        status: license || 'unknown',
+        color: 'blue'
+      }
+    }
+    case 'crystal': {
+      let ver = html.match(/Crystal<\/span>\s*<span[^>]*?>([^<]+)<\//i)?.[1].trim()
+      if (!ver || ver === 'none') ver = '*'
+      return {
+        subject: 'crystal',
+        status: version(ver),
+        color: 'green'
+      }
+    }
+    case 'dependents': {
+      const dependents = Number(html.match(/Dependents[^>]*? class="count">([^<]+)<\//i)?.[1].trim())
+      return {
+        subject: 'dependents',
+        status: millify(dependents),
+        color: 'green'
+      }
+    }
+  }
+}

libs/badge-list.ts

@@ -36,6 +36,7 @@ export const liveBadgeList = [
   'winget',
   'f-droid',
   'pub',
+  'shards',
   'wapm',
   // CI
   'travis',