refactor: move analytics into services directory

services/analytics/src/controllers/index.ts

@@ -0,0 +1,23 @@
+import { Request, Response } from 'express'
+import { userCount } from '../models/users'
+import { questList } from '../models/quests'
+
+export async function homeController(req: Request, res: Response) {
+  const quests = await questList()
+  const [totalQuests, totalCompleted] = quests.reduce(
+    ([total, completed], quest) => [
+      total + quest.started,
+      completed + quest.completed,
+    ],
+    [0, 0]
+  )
+
+  const payload = {
+    title: 'Linux Odyssey Admin',
+    userCount: await userCount(),
+    totalQuests,
+    totalCompleted,
+    completedRate: Math.round((totalCompleted / totalQuests) * 10000) / 100,
+  }
+  res.render('home', payload)
+}