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client.js
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client.js
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/* jshint esversion: 6 */
var ChatBox = ChatBox || {};
ChatBox.newClient = {
initialize : function () {
var clients = [];
var createClient = function (socket, name) {
var me = this;
me.socket = socket;
me.name = name;
me.send = function(message) {
me.socket.write(message + '\n');
};
// To print the users name
me.toString = function() {
return me.name;
};
var users = 'Users: ' + clients.join(', ');
if(clients.length > 0){
me.send("Here are some users to chat" + users+" \nFor chat use '/<userName> <message>' ");
}else {
me.send("Looks like no one is here. \nFor chat use '/<userName> <message>' ");
}
};
var getClientBySocket = function(socket) {
for (let ii = 0, n = clients.length; ii < n; ii++) {
if (clients[ii].socket == socket) {
return clients[ii];
}
}
};
var getClientByname = function(name) {
for (let ii = 0, n = clients.length; ii < n; ii++) {
if (clients[ii].name == name) {
return clients[ii];
}
}
};
var isUserExist = function (name) {
for (let ii = 0, n = clients.length; ii < n; ii++) {
if (clients[ii].name == name) {
return true;
}
}
return false;
};
var sendToAll = function (message) {
for (let ii = 0, n = clients.length; ii < n; ii++) {
clients[ii].send(message);
}
};
this.addClient = function (socket, name) {
if(isUserExist(name)){
socket.write("This user already exist. Choose other name\n");
return false;
}else {
sendToAll(name +' logged in.\n');
var client = new createClient(socket, name);
clients.push(client);
return client;
}
};
this.handleCommand = function (data, socket) {
var sender = getClientBySocket(socket);
if (data.substring(0, 1) != '/') {
return false;
}
var index = data.indexOf(" ");
var name = data.substring(1, index);
var message = data.substring(index+1, data.length);
var receiver = getClientByname(name);
if (!receiver) {
sender.send('User not found!');
return;
}
receiver.send(sender + ' says: ' + message);
return true;
};
}
};
module.exports = ChatBox.newClient.initialize;