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const net = require("net")
const User = require("../src/user.js")
const RPL_WELCOME = '001'
const ERR_NOSUCHNICK = '401'
const ERR_NOSUCHCHANNEL = '403'
const ERR_CANNOTSENDTOCHAN = '404'
const ERR_UNKNOWNCOMMAND = '421'
const ERR_ERRONEUSNICKNAME = '432'
const ERR_NONICKNAMEGIVEN = '431'
const ERR_NICKNAMEINUSE = '433'
const ERR_NEEDMOREPARAMS = '461'
let server = {}
let registeredUserlist = require("../src/userlist.js")
server.create = function create() {
return net.createServer((socket) => {
const user = new User(socket)
socket.on('data', function (data) {
let tokenized = data.toString("ascii").split("\r\n")[0].split(" ")
let command = tokenized[0].toUpperCase()
switch (command) {
case "PING":
if (tokenized[1] && tokenized[1] === "irc.example.com") {
socket.write("PONG irc.example.com\r\n")
}
break;
case "NICK":
if (tokenized[1]) {
let nickname = tokenized[1]
// nick collision test
if (!Object.keys(registeredUserlist).includes(nickname)) {
user.setNickname(nickname)
registeredUserlist[nickname] = user
socket.write(RPL_WELCOME, " nick " + nickname + " succesfully added.")
} else {
socket.write(ERR_NICKNAMEINUSE, " nickname in use")
}
} else {
socket.write(ERR_NONICKNAMEGIVEN, "ERROR: NO NICKNAME PROVIDED")
}
break;
default:
console.error(`Unknown command: ${command}`);
}
}).on('error', (err) => {
console.error(err);
})
}).on('error', (err) => {
console.error(err);
throw err;
});
}
module.exports = server