Migrate to TypeScript

.gitignore

@@ -1,3 +1,9 @@
+tsconfig.tsbuildinfo
+**/*.d.ts
+src/*.js
+index.js
+package-lock.json
+
 # Logs
 logs
 *.log

index.ts

@@ -0,0 +1 @@
+import "./src"

package.json

@@ -3,21 +3,27 @@
   "version": "0.0.0",
   "private": true,
   "scripts": {
-    "test": "npm run unit",
-    "unit": "nyc mocha --reporter=landing",
-    "coverage": "mkdir coverage; nyc report --reporter=text-lcov >> ./coverage/lcov.info"
+    "build": "tsc -b"
   },
   "devDependencies": {
+    "@types/lru-cache": "^5.1.0",
+    "@types/node": "^13.1.8",
+    "@types/socket.io": "^2.1.4",
+    "@types/socket.io-client": "^1.4.32",
+    "@types/ws": "^7.2.0",
     "chai": "^4.2.0",
     "coveralls": "^3.0.6",
     "mocha": "^6.2.0",
-    "nyc": "^14.1.1"
+    "nyc": "^14.1.1",
+    "ts-node": "^8.6.2",
+    "typescript": "^3.7.5"
   },
   "dependencies": {
     "athome": "^0.3.0",
     "lru-cache": "^5.1.1",
     "socket.io": "^2.3.0",
     "socket.io-client": "^2.3.0",
+    "state-center": "file:state-center",
     "ws": "^7.1.2"
   }
 }

index.js → src/home.ts

@@ -1,15 +1,14 @@
-const Server = require('socket.io')
-const LRU = require('lru-cache')
-const AtHome = require('athome')
+import SocketIO from 'socket.io'
+import LRU from 'lru-cache'
+import AtHome from 'athome'
+import CState from '../state-center/api'
+import { map } from './metadata'
 
-const CState = require('./state-center/api')
+export const cState = new CState({ name: 'cluster' })
 
-const clusterWs = require('./ws')
+const io = SocketIO(9012, { serveClient: false })
 
-const cState = new CState({ name: 'cluster' })
-
-const io = new Server(9012, { serveClient: false })
-const httpHome = new AtHome({
+export const httpHome: InstanceType<typeof AtHome> = new AtHome({
   retries: 16,
   validator: result => {
     if (!result) {
@@ -23,24 +22,33 @@ const httpHome = new AtHome({
       return false
     }
     return !result.code
-  }
+  },
 })
+
 const cache = new LRU({ max: 10000, maxAge: 1000 * 60 })
 
-cState.stateRoute({
+export const router = {
   pulls() {
     return httpHome.pulls.length
   },
   pending() {
     return httpHome.pending.length
   },
   homes() {
-    return [...httpHome.homes.values()].map(({ runtime, version, platform, docker, name, resolves, rejects, lastSeen, id }) => ({ runtime, version, platform, docker, name, resolves, rejects, lastSeen, id }))
+    return [...httpHome.homes.values()]
+      .map(home => {
+        const { resolves, rejects, lastSeen } = home
+        const { id }: any = home
+        const metadata = map.get(home)
+        return { resolves, rejects, lastSeen, id, ...metadata }
+      })
   },
   online() {
     return httpHome.homes.size
-  }
-})
+  },
+}
+
+cState.stateRoute(router)
 
 const pending = new Map()
 
@@ -76,4 +84,3 @@ io.on('connect', socket => {
 
 console.log('Cluster center online')
 console.log('socket.io: 9012')
-clusterWs(httpHome, cState.log)

src/index.ts

@@ -0,0 +1 @@
+import './ws'

src/metadata.ts

@@ -0,0 +1,7 @@
+import AtHome from 'athome'
+
+export const metadatas = ['runtime', 'platform', 'version', 'name', 'docker'] as const
+
+type MetadataKey = typeof metadatas[number]
+
+export const map: WeakMap<ReturnType<InstanceType<typeof AtHome>["homes"]["get"]>, Record<MetadataKey, any>> = new WeakMap()

src/ws.ts

@@ -0,0 +1,105 @@
+import { Server } from 'ws'
+import AtHome from 'athome'
+import CState from '../state-center/api'
+import { map, metadatas } from './metadata'
+import { httpHome, cState, router } from './home'
+
+const keyGen = () => String(Math.random())
+const parse = (string: string) => {
+  try {
+    let { key, data, query } = JSON.parse(string)
+    if (typeof data === 'string') {
+      try {
+        data = JSON.parse(data)
+      } catch (_) { }
+      return { key, data }
+    }
+    if (query) {
+      return { key, query }
+    }
+  } catch (_) {
+    return undefined
+  }
+}
+
+const wss = new Server({ port: 9013 })
+
+const url = new URL('https://cluster.vtbs.moe')
+
+console.log('ws: 9013')
+
+const { log } = cState
+
+wss.on('connection', (ws, request) => {
+  const resolveTable = new Map<string, (data: any) => void>()
+  const uuid = httpHome.join((url: string) => {
+    log('dispatch', { uuid })
+    const key = keyGen()
+    ws.send(JSON.stringify({
+      key,
+      data: {
+        type: 'http',
+        url,
+      },
+    }))
+    return new Promise((resolve, reject) => {
+      const timeout = setTimeout(reject, 1000 * 15, 'timeout')
+      resolveTable.set(key, data => {
+        clearTimeout(timeout)
+        resolve(data)
+      })
+    })
+  })
+
+  console.log('online:', httpHome.homes.size)
+
+  const { searchParams } = new URL(request.url, url)
+  metadatas
+  map.set(httpHome.homes.get(uuid), Object.fromEntries(metadatas
+    .map(key => [key, searchParams.get(key)])
+    .filter(([_, v]) => v)))
+
+  log('connect', { uuid })
+
+  ws.on('message', (message: string) => {
+    if (message === 'DDDhttp') {
+      if (httpHome.pending.length) {
+        log('pull', { uuid })
+        httpHome.pull(uuid)
+      } else {
+        ws.send('wait')
+      }
+    } else if (message === 'DDhttp') {
+      log('pull', { uuid })
+      httpHome.pull(uuid)
+    } else {
+      const json = parse(message)
+      if (typeof json === 'object') {
+        const { key, data, query } = json
+        if (data) {
+          if (resolveTable.has(key)) {
+            resolveTable.get(key)(data)
+            resolveTable.delete(key)
+          }
+        } else if (query) {
+          const route = router[query as keyof typeof router]
+          if (route) {
+            const result = route()
+            ws.send(JSON.stringify({
+              key,
+              data: {
+                type: 'query',
+                result,
+              },
+            }))
+          }
+        }
+      }
+    }
+  })
+  ws.on('close', n => {
+    log('close', { n, uuid })
+    httpHome.quit(uuid)
+  })
+})
+

tsconfig.json

@@ -0,0 +1,19 @@
+{
+  "compilerOptions": {
+    "target": "es2019",
+    "module": "commonjs",
+    "esModuleInterop": true,
+    "moduleResolution": "node",
+    "noImplicitAny": true,
+    "composite": true
+  },
+  "include": [
+    "src"
+  ],
+  "files": [
+    "index.ts",
+  ],
+  "references": [
+    { "path": "state-center" }
+  ]
+}