Improve consistency of interface

lib/Plex.ts

@@ -0,0 +1,22 @@
+import {EventBus} from "./util/EventBus"
+
+export class Plex {
+  constructor(urls, socket) {
+    this.urls = urls
+    this.socket = socket
+    this.bus = new EventBus()
+    this.onMessage = this.onMessage.bind(this)
+
+    this.socket.bus.on('message', this.onMessage)
+  }
+  async send(...payload) {
+    await this.socket.connect()
+
+    this.socket.send([{relays: this.urls}, payload])
+  }
+  onMessage(message) {
+    const [verb, ...payload] = message[1]
+
+    this.bus.handle(verb, ...payload)
+  }
+}