#!/usr/bin/env node

const express = require("express");

let server;

class WebServer {

/**

* A lightweight webserver

* @param {string} path

* @param {number} port

*/

constructor(path, port) {

this.path = path;

this.port = port;

}

/**

* Start an instance of the server

*/

start() {

const app = express();

app.use(express.static(this.path));

server = app.listen(this.port);

console.log("listening on port", this.port);

}

/**

* Stop the server

* @returns {Promise} Close server or throw an error

*/

stop() {

return new Promise((resolve, reject) => {

server.on("close", () => {

resolve("Closed");

});

server.on("clientError", (err, socket) => {

console.log(err);

socket.end(err.code);

reject(err);

});

server.close();

});

}

}

module.exports = WebServer;