import { WebSocket, RawData } from "ws";
import { SocketVM } from "./SocketVM";

import * as Shared from "@socketcomputer/shared";

export class VMUser {
	public connection: WebSocket;
	public address: string;
	public username: string = "";
	public vm: SocketVM|null = null;


	constructor(connection: WebSocket, address: string) {
		this.connection = connection;
		this.address = address;

		this.connection.on('message', async (data: RawData, isBinary: boolean) => {
			if (!isBinary) this.connection.close(1000, "No");
			await this.vm?.OnWSMessage(this, data as Buffer);
		});

		this.connection.on('close', async (code: number, reason: Buffer) => {
			await this.vm?.RemUser(this);
		});
	}

	async SendMessage(messageGenerator: (encoder: Shared.MessageEncoder) => ArrayBuffer) {
		await this.SendBuffer(messageGenerator(new Shared.MessageEncoder()));
	}

	async SendBuffer(buffer: Buffer|ArrayBuffer): Promise<void> {
		return new Promise((res, rej) => {
			if (this.connection.readyState !== WebSocket.CLOSED) {
				this.connection.send(buffer);
				res();
			}
			rej(new Error('connection haves closed'));
		});
	}

	static GenerateName() {
		return `guest${Math.floor(Math.random() * (99999 - 10000) + 10000)}`;
	}
}