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index.js
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index.js
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'use strict';
const twitchChannelsArgs = process.argv.slice(2);
const chalk = require('chalk');
const tmi = require('tmi.js');
const Datastore = require('nedb');
const morgan = require('morgan');
const consola = require('consola');
const path = require('path');
const express = require('express');
const app = express();
const server = require('http').createServer(app);
const io = require('socket.io')(server);
const { findIcon } = require('./helpers');
const emoticons = require('./data/twitch-emoticons');
app.use(express.static(path.join(__dirname, 'web')));
app.use(morgan('tiny'));
app.set('views', path.join(__dirname, 'web'));
app.engine('html', require('ejs').renderFile);
app.set('view engine', 'html');
app.use('/', (req, res) => {
res.render('index.html');
});
let twitchChannels = [];
// load databases
const database = new Datastore('chats.db');
const dropsDb = new Datastore('drops.db');
database.loadDatabase();
dropsDb.loadDatabase();
// instanciate client to listen twitch channel
const client = new tmi.Client({
connection: {
secure: true,
reconnect: true,
},
channels: twitchChannelsArgs,
});
// prevent duplicate message
let isClientConnected = false;
// Clears Console
function clearConsoleAndScrollbackBuffer() {
process.stdout.write('\u001b[3J\u001b[2J\u001b[1J');
console.clear();
}
function isInArray(value, array) {
return array.indexOf(value) > -1;
}
consola.success(chalk.greenBright('Fetching messages...'));
let fetched = false;
if (twitchChannelsArgs.length === 0) {
consola.info('No Channels added, go to http://localhost:8080 to add or remove channels');
}
// listen messages from twitch channels
client.on('message', (channel, tags, message, self) => {
// "#twitchChannel | Alca: Hello, World!"
if (!fetched) {
clearConsoleAndScrollbackBuffer();
console.info('---------------' + 'Twitch Live Chat' + '---------------');
fetched = true;
}
console.log(chalk.cyanBright(`${channel} | ${tags['display-name']} > ${message}`));
// database.insert({socket_id: socket.id, time: socket.handshake.time});
database.insert({
channel,
message,
username: tags['display-name'],
});
if (message === '!drop me') {
console.log(`${tags['display-name']} just dropped!`);
dropsDb.insert({
channel,
username: tags['display-name'],
});
}
});
io.on('connection', (socket) => {
// connect client
if(!isClientConnected) {
client.connect();
isClientConnected = true;
}
if (twitchChannelsArgs.length > 0) {
twitchChannelsArgs.forEach((newChannel) => {
if(!isInArray(newChannel,twitchChannels)){
twitchChannels.push(newChannel);
}
});
}
socket.emit('channels', twitchChannels);
client.on('message', (channel, tags, message, self) => {
if (self) return;
socket.emit('chat', { channel, tags, message: findIcon(message, emoticons) });
});
socket.on('addChat', (newChannel) => {
if(!isInArray(newChannel,twitchChannels)){
twitchChannels.push(newChannel);
client.join(newChannel);
socket.emit('channels', twitchChannels);
}
});
socket.on('disconnectChannel', (channelToDisconnect) => {
twitchChannels = twitchChannels.filter((channel) => channel !== channelToDisconnect);
// No need to disconnect channel be cause it will impact other user.
//client.part(channelToDisconnect.replace('#', ''));
});
});
server.listen(8080);