Refactor server websocket dependency tree to fix jest tests

packages/server/src/api/controllers/plugin/index.ts

@@ -10,7 +10,7 @@ import {
 } from "@budibase/backend-core/objectStore"
 import { PluginType, FileType, PluginSource } from "@budibase/types"
 import env from "../../../environment"
-import { ClientAppSocket } from "../../../app"
+import { ClientAppSocket } from "../../../websocket"
 
 export async function getPlugins(type?: PluginType) {
   const db = getGlobalDB()

packages/server/src/app.ts

@@ -32,7 +32,7 @@ import * as migrations from "./migrations"
 import { events, installation, tenancy } from "@budibase/backend-core"
 import { createAdminUser, getChecklist } from "./utilities/workerRequests"
 import { watch } from "./watch"
-import { Websocket } from "./websocket"
+import { initialise as initialiseWebsockets } from "./websocket"
 
 const app = new Koa()
 
@@ -77,9 +77,7 @@ if (env.isProd()) {
 
 const server = http.createServer(app.callback())
 destroyable(server)
-
-// initialise websockets
-export const ClientAppSocket = new Websocket(server, "/socket/client")
+initialiseWebsockets(server)
 
 let shuttingDown = false,
   errCode = 0

packages/server/src/websocket.ts

@@ -1,7 +1,7 @@
 import { Server } from "socket.io"
 import http from "http"
 
-export class Websocket {
+class Websocket {
   socketServer: Server
 
   constructor(server: http.Server, path: string) {
@@ -15,3 +15,12 @@ export class Websocket {
     this.socketServer.sockets.emit(event, payload)
   }
 }
+
+// Likely to be more socket instances in future
+let ClientAppSocket: Websocket
+
+export const initialise = (server: http.Server) => {
+  ClientAppSocket = new Websocket(server, "/socket/client")
+}
+
+export { ClientAppSocket }