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server.ts
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server.ts
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import { serve, DenoServer, HTTPOptions,
HTTPSOptions,
acceptWebSocket,
isWebSocketCloseEvent,
WebSocket }
from "./imports.ts";
import { Client } from "./client.ts"
import { EventHandler } from "./eventhandler.ts"
import { Packet } from "./packet.ts"
// import { serveFile } from "https://deno.land/[email protected]/http/file_server.ts";
//options would look like {host: , port: }
//want to feed those options into creating a new server
//after that, upgrade connection to websocket connection if possible
//
export class Server {
public server: DenoServer | null = null;
public hostname = 'localhost';
public clients: {[key: string]: Client} = {};
public channelsList: {[key: string]: Record<string, Client>} = {'home': {}};
public eventHandler: EventHandler;
constructor(){
//what goes inside this constructor, what do we want const server to equal
// this.served;
this.eventHandler = new EventHandler();
}
//function run to start the server and then upgrade
run(port: number): DenoServer {
//options = just a port number like 8080 object {hostname: 'localhost', port: 8080}
const options: HTTPOptions = {hostname: this.hostname, port}
this.server = serve(options);
console.log(this.server)
this.awaitRequests(this.server);
//within run we need some way to accept the websocket connection: acceptWebSocket
return this.server;
}
channel(name: string, callback: ()=>void): void {
this.channelsList[name] = {};
console.log(this.channelsList)
callback();
return;
}
// Invoked in run method with
async awaitRequests(server: DenoServer){
// let i = 0;
for await(const req of server) {
// console.log(req, 'req')
// console.log(i)
// console.log(req)
// i += 1;
// if(req.url === '/'){
// // try{
// const path = `${Deno.cwd()}/assets/index.html`
// const content = await serveFile(req, path);
// req.respond(content);
// // }
// // catch(err){
// // console.log(err)
// // }
// break;
// }
const { conn, w:bufWriter, r:bufReader, headers } = req;
// console.log(headers);
// req.respond({ body: 'hi' });
// console.log(BufWriter)
// console.log(BufWriter)
acceptWebSocket({conn, bufWriter, bufReader, headers})
.then(async (socket: WebSocket) => {
const client = new Client(socket, Object.keys(this.clients).length);
this.clients[client.id] = client;
this.channelsList['home'][client.id] = client;
// console.log('clients', this.clients)
// console.log('channelslist', this.channelsList)
// const tag = client.id
// this.clients[tag] = client;
for await(const message of socket){
if(isWebSocketCloseEvent(message) || typeof message !== 'string'){
//remove client from channelsList
//and from
delete this.channelsList[client.channel][client.id];
delete this.clients[client.id]
// console.log('im here', this.channelsList)
console.log('im here', this.clients)
break;
}
// console.log('im here', this.channelsList)
console.log('im heere', message)
const data: Packet = JSON.parse(message)
// if(data.protocol === 'broadcast'){
// this.eventHandler.broadcast(data.protocol, client, this.channelsList)
// }
switch(data.protocol) {
case 'message':
console.log('case message', this.clients)
this.eventHandler.handleMessage(data, client, this.channelsList);
break;
case 'broadcast':
this.eventHandler.broadcast(data, client, this.channelsList)
break;
case 'changeChannel':
this.channelsList = this.eventHandler.changeChannel(data, client, this.channelsList);
console.log('case channel', this.channelsList);
break;
default:
console.log('default hit', data)
}
}
})
.catch(err => console.log(err, 'err'))
//within the acceptwebsocket function, it takes an object:req: {
// conn: Deno.Conn;
// bufWriter: BufWriter;
// bufReader: BufReader;
// headers: Headers;
// }
}
}
}
//on client side it would like
// const server = new Server() <- goes inside constructor