Rename files again to fix case insensitive file rename

packages/net/src/pool.ts

@@ -0,0 +1,103 @@
+import {remove} from "@welshman/lib"
+import {normalizeRelayUrl} from "@welshman/util"
+import {Socket} from "./socket.js"
+import {AuthState} from "./auth.js"
+import {defaultSocketPolicies} from "./policy.js"
+
+export const makeSocket = (url: string, policies = defaultSocketPolicies) => {
+  const socket = new Socket(url)
+
+  for (const applyPolicy of policies) {
+    applyPolicy(socket)
+  }
+
+  return socket
+}
+
+export type PoolSubscription = (socket: Socket) => void
+
+export type PoolOptions = {
+  makeSocket?: (url: string) => Socket
+}
+
+export let poolSingleton: Pool
+
+export type PoolItem = {
+  socket: Socket
+  auth: AuthState
+}
+
+export class Pool {
+  _data = new Map<string, PoolItem>()
+  _subs: PoolSubscription[] = []
+
+  static getSingleton() {
+    if (!poolSingleton) {
+      poolSingleton = new Pool()
+    }
+
+    return poolSingleton
+  }
+
+  constructor(readonly options: PoolOptions = {}) {}
+
+  has(url: string) {
+    return this._data.has(normalizeRelayUrl(url))
+  }
+
+  makeSocket(url: string) {
+    if (this.options.makeSocket) {
+      return this.options.makeSocket(url)
+    }
+
+    return makeSocket(url)
+  }
+
+  get(_url: string): Socket {
+    const url = normalizeRelayUrl(_url)
+    const item = this._data.get(url)
+
+    if (item) {
+      return item.socket
+    }
+
+    const socket = this.makeSocket(url)
+
+    this._data.set(url, {socket, auth: new AuthState(socket)})
+
+    for (const cb of this._subs) {
+      cb(socket)
+    }
+
+    return socket
+  }
+
+  getAuth(url: string) {
+    return this._data.get(normalizeRelayUrl(url))?.auth
+  }
+
+  subscribe(cb: PoolSubscription) {
+    this._subs.push(cb)
+
+    return () => {
+      this._subs = remove(cb, this._subs)
+    }
+  }
+
+  remove(url: string) {
+    const item = this._data.get(url)
+
+    if (item) {
+      item.socket.cleanup()
+      item.auth.cleanup()
+
+      this._data.delete(url)
+    }
+  }
+
+  clear() {
+    for (const url of this._data.keys()) {
+      this.remove(url)
+    }
+  }
+}