shared/extra-utils/mock-servers/mock-instances-index.ts

   1 import express from 'express'
   2 import { Server } from 'http'
   3 import { randomInt } from '@shared/core-utils'
   4 import { terminateServer } from './utils'
   5
   6 export class MockInstancesIndex {
   7   private server: Server
   8
   9   private readonly indexInstances: { host: string, createdAt: string }[] = []
  10
  11   initialize () {
  12     return new Promise<number>(res => {
  13       const app = express()
  14
  15       app.use('/', (req: express.Request, res: express.Response, next: express.NextFunction) => {
  16         if (process.env.DEBUG) console.log('Receiving request on mocked server %s.', req.url)
  17
  18         return next()
  19       })
  20
  21       app.get('/api/v1/instances/hosts', (req: express.Request, res: express.Response) => {
  22         const since = req.query.since
  23
  24         const filtered = this.indexInstances.filter(i => {
  25           if (!since) return true
  26
  27           return i.createdAt > since
  28         })
  29
  30         return res.json({
  31           total: filtered.length,
  32           data: filtered
  33         })
  34       })
  35
  36       const port = 42000 + randomInt(1, 1000)
  37       this.server = app.listen(port, () => res(port))
  38     })
  39   }
  40
  41   addInstance (host: string) {
  42     this.indexInstances.push({ host, createdAt: new Date().toISOString() })
  43   }
  44
  45   terminate () {
  46     return terminateServer(this.server)
  47   }
  48 }