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import { url } from "./url.js";
import { Manager } from "./manager.js";
import { Socket } from "./socket.js";
/**
* Managers cache.
*/
const cache = {};
function lookup(uri, opts) {
if (typeof uri === "object") {
opts = uri;
uri = undefined;
}
opts = opts || {};
const parsed = url(uri, opts.path || "/socket.io");
const source = parsed.source;
const id = parsed.id;
const path = parsed.path;
const sameNamespace = cache[id] && path in cache[id]["nsps"];
const newConnection = opts.forceNew ||
opts["force new connection"] ||
false === opts.multiplex ||
sameNamespace;
let io;
if (newConnection) {
io = new Manager(source, opts);
}
else {
if (!cache[id]) {
cache[id] = new Manager(source, opts);
}
io = cache[id];
}
if (parsed.query && !opts.query) {
opts.query = parsed.queryKey;
}
return io.socket(parsed.path, opts);
}
// so that "lookup" can be used both as a function (e.g. `io(...)`) and as a
// namespace (e.g. `io.connect(...)`), for backward compatibility
Object.assign(lookup, {
Manager,
Socket,
io: lookup,
connect: lookup,
});
/**
* Protocol version.
*
* @public
*/
export { protocol } from "socket.io-parser";
/**
* Expose constructors for standalone build.
*
* @public
*/
export { Manager, Socket, lookup as io, lookup as connect, lookup as default, };