LinkUp-P2P-Chat/chatBot/includes/Client.js

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import Hyperswarm from 'hyperswarm';
import EventEmitter from 'node:events'
import b4a from "b4a";
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class Client extends EventEmitter {
constructor(botName) {
super();
if(!botName) return console.error("BotName is not defined!");
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this.botName = botName;
this.swarm = new Hyperswarm();
this.setupSwarm();
}
setupSwarm() {
this.swarm.on('connection', (peer) => {
peer.on('data', message => {
if(message.type === "message") this.emit('onMessage', peer, JSON.parse(message.toString()));
if(message.type === "icon") this.emit('onIcon', peer, JSON.parse(message.toString()));
if(message.type === "file") this.emit('onFile', peer, JSON.parse(message.toString()));
});
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peer.on('error', e => {
this.emit('onError', e);
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console.error(`Connection error: ${e}`)
});
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});
this.swarm.on('update', () => {
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console.log(`Connections count: ${this.swarm.connections.size} / Peers count: ${this.swarm.peers.size}`);
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this.swarm.peers.forEach((peerInfo, peerId) => {
// Please do not try to understand what is going on here. I have no idea anyway. But it surprisingly works
const peer = [peerId];
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const peerTopics = [peerInfo.topics]
.filter(topics => topics)
.map(topics => topics.map(topic => b4a.toString(topic, 'hex')));
});
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});
}
joinChatRoom(chatRoomID) {
this.discovery = this.swarm.join(Buffer.from(chatRoomID, 'hex'), {client: true, server: true});
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this.discovery.flushed().then(() => {
console.log(`Bot ${this.botName} joined the chat room.`);
this.emit('onBotJoinRoom');
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});
}
sendMessage(roomPeers, message) {
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console.log('Bot name:', this.botName);
const timestamp = Date.now(); // Generate timestamp
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const peers = [...this.swarm.connections].filter(peer => roomPeers.includes(peer.remotePublicKey.toString('hex'))); // We remove all the peers that arent included in a room
const data = JSON.stringify({name: this.botName, message, timestamp}); // Include timestamp
for (const peer of peers) peer.write(data);
}
sendMessageToAll(message) {
console.log('Bot name:', this.botName);
const timestamp = Date.now(); // Generate timestamp
const peers = [...this.swarm.connections]
const data = JSON.stringify({name: this.botName, message, timestamp}); // Include timestamp
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for (const peer of peers) peer.write(data);
}
destroy() {
this.swarm.destroy();
console.log(`Bot ${this.botName} disconnected.`);
}
}
export default Client;