switch to typescript

src/server/GameSockets.ts

@@ -0,0 +1,48 @@
+import { logger } from '../common/Util.js'
+import WebSocket from 'ws'
+
+const log = logger('GameSocket.js')
+
+// Map<gameId, Socket[]>
+const SOCKETS = {} as Record<string, Array<WebSocket>>
+
+function socketExists(gameId: string, socket: WebSocket) {
+  if (!(gameId in SOCKETS)) {
+    return false
+  }
+  return SOCKETS[gameId].includes(socket)
+}
+
+function removeSocket(gameId: string, socket: WebSocket) {
+  if (!(gameId in SOCKETS)) {
+    return
+  }
+  SOCKETS[gameId] = SOCKETS[gameId].filter((s: WebSocket) => s !== socket)
+  log.log('removed socket: ', gameId, socket.protocol)
+  log.log('socket count: ', Object.keys(SOCKETS[gameId]).length)
+}
+
+function addSocket(gameId: string, socket: WebSocket) {
+  if (!(gameId in SOCKETS)) {
+    SOCKETS[gameId] = []
+  }
+  if (!SOCKETS[gameId].includes(socket)) {
+    SOCKETS[gameId].push(socket)
+    log.log('added socket: ', gameId, socket.protocol)
+    log.log('socket count: ', Object.keys(SOCKETS[gameId]).length)
+  }
+}
+
+function getSockets(gameId: string) {
+  if (!(gameId in SOCKETS)) {
+    return []
+  }
+  return SOCKETS[gameId]
+}
+
+export default {
+  addSocket,
+  removeSocket,
+  socketExists,
+  getSockets,
+}