.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/LinkUp-P2P-Chat.iml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.tmp" />
+      <excludeFolder url="file://$MODULE_DIR$/temp" />
+      <excludeFolder url="file://$MODULE_DIR$/tmp" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/misc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="JavaScriptSettings">
+    <option name="languageLevel" value="FLOW" />
+  </component>
+</project>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/LinkUp-P2P-Chat.iml" filepath="$PROJECT_DIR$/.idea/LinkUp-P2P-Chat.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>

app.js

@@ -16,7 +16,7 @@ await drive.ready();
 let swarm;
 let registeredUsers = JSON.parse(localStorage.getItem('registeredUsers')) || {};
 let peerCount = 0;
-let currentRoom = null;
+let activeRooms = [];
 const eventEmitter = new EventEmitter();
 
 // Define servePort at the top level
@@ -29,7 +29,10 @@ let config = {
   rooms: []
 };
 
-// Function to get a random port between 1337 and 2223
+// Store messages for each room
+let messagesStore = {};
+
+// Function to get a random port between 49152 and 65535
 function getRandomPort() {
   return Math.floor(Math.random() * (65535 - 49152 + 1)) + 49152;
 }
@@ -73,40 +76,38 @@ async function initialize() {
     toggleSetupBtn.addEventListener('click', toggleSetupView);
   }
   if (removeRoomBtn) {
-    removeRoomBtn.addEventListener('click', leaveRoom);
+    removeRoomBtn.addEventListener('click', () => {
+      const topic = document.querySelector('#chat-room-topic').innerText;
+      leaveRoom(topic);
+    });
   }
   if (attachFileButton) {
     attachFileButton.addEventListener('click', () => fileInput.click());
   }
   if (fileInput) {
-    fileInput.addEventListener('change', async (event) => {
-      const file = event.target.files[0];
-      if (file) {
-        const reader = new FileReader();
-        reader.onload = async (event) => {
-          const buffer = new Uint8Array(event.target.result);
-          const filePath = `/files/${file.name}`;
-          await drive.put(filePath, buffer);
-          const fileUrl = `http://localhost:${servePort}${filePath}`;
-          sendFileMessage(config.userName, fileUrl, file.type, config.userAvatar);
-        };
-        reader.readAsArrayBuffer(file);
-      }
-    });
+    fileInput.addEventListener('change', handleFileInput);
   }
 
   const configExists = fs.existsSync("./config.json");
   if (configExists) {
     config = JSON.parse(fs.readFileSync("./config.json", 'utf8'));
-    console.log("Read config from file:", config)
+    console.log("Read config from file:", config);
     // Update port in URLs
     config.userAvatar = updatePortInUrl(config.userAvatar);
     config.rooms.forEach(room => {
-      addRoomToListWithoutWritingToConfig(room);
+      room.alias = room.alias || truncateHash(room.topic);
     });
     for (let user in registeredUsers) {
       registeredUsers[user] = updatePortInUrl(registeredUsers[user]);
     }
+
+    renderRoomList(); // Render the room list with aliases
+
+    // Connect to all rooms on startup
+    for (const room of config.rooms) {
+      const topicBuffer = b4a.from(room.topic, 'hex');
+      await joinSwarm(topicBuffer);
+    }
   }
 
   const registerDiv = document.querySelector('#register');
@@ -115,15 +116,30 @@ async function initialize() {
   }
 
   eventEmitter.on('onMessage', async (messageObj) => {
+    console.log('Received message:', messageObj); // Debugging log
+
     if (messageObj.type === 'icon') {
       const username = messageObj.username;
-      const avatarBuffer = Buffer.from(messageObj.avatar, 'base64');
-      await drive.put(`/icons/${username}.png`, avatarBuffer);
-      updateIcon(username, avatarBuffer);
+      if (messageObj.avatar) {
+        const avatarBuffer = b4a.from(messageObj.avatar, 'base64');
+        await drive.put(`/icons/${username}.png`, avatarBuffer);
+        updateIcon(username, avatarBuffer);
+      } else {
+        console.error('Received icon message with missing avatar data:', messageObj);
+      }
     } else if (messageObj.type === 'file') {
-      addFileMessage(messageObj.name, messageObj.fileName, messageObj.fileUrl, messageObj.fileType, messageObj.avatar);
+      if (messageObj.file && messageObj.fileName) {
+        const fileBuffer = b4a.from(messageObj.file, 'base64');
+        await drive.put(`/files/${messageObj.fileName}`, fileBuffer);
+        const fileUrl = `http://localhost:${servePort}/files/${messageObj.fileName}`;
+        addFileMessage(messageObj.name, messageObj.fileName, updatePortInUrl(fileUrl), messageObj.fileType, updatePortInUrl(messageObj.avatar), messageObj.topic);
+      } else {
+        console.error('Received file message with missing file data or fileName:', messageObj);
+      }
+    } else if (messageObj.type === 'message') {
+      onMessageAdded(messageObj.name, messageObj.message, messageObj.avatar, messageObj.topic);
     } else {
-      onMessageAdded(messageObj.name, messageObj.message, messageObj.avatar);
+      console.error('Received unknown message type:', messageObj);
     }
   });
 
@@ -138,7 +154,7 @@ async function initialize() {
       const iconMessage = JSON.stringify({
         type: 'icon',
         username: config.userName,
-        avatar: iconBuffer.toString('base64'),
+        avatar: b4a.toString(iconBuffer, 'base64'),
       });
       connection.write(iconMessage);
     }
@@ -162,6 +178,11 @@ async function initialize() {
   swarm.on('close', () => {
     console.log('Swarm closed');
   });
+
+  // Initialize highlight.js once the DOM is fully loaded
+  document.addEventListener("DOMContentLoaded", (event) => {
+    hljs.highlightAll();
+  });
 }
 
 function registerUser(e) {
@@ -214,7 +235,7 @@ async function createChatRoom() {
   const topicBuffer = crypto.randomBytes(32);
   const topic = b4a.toString(topicBuffer, 'hex');
   addRoomToList(topic);
-  joinSwarm(topicBuffer);
+  await joinSwarm(topicBuffer);
 }
 
 async function joinChatRoom(e) {
@@ -222,27 +243,21 @@ async function joinChatRoom(e) {
   const topicStr = document.querySelector('#join-chat-room-topic').value;
   const topicBuffer = b4a.from(topicStr, 'hex');
   addRoomToList(topicStr);
-  joinSwarm(topicBuffer);
+  await joinSwarm(topicBuffer);
 }
 
 async function joinSwarm(topicBuffer) {
-  if (currentRoom) {
-    currentRoom.destroy();
-  }
-
-  document.querySelector('#setup').classList.add('hidden');
-  document.querySelector('#loading').classList.remove('hidden');
-
-  const discovery = swarm.join(topicBuffer, { client: true, server: true });
-  await discovery.flushed();
-
   const topic = b4a.toString(topicBuffer, 'hex');
-  document.querySelector('#chat-room-topic').innerText = topic; // Set full topic here
-  document.querySelector('#loading').classList.add('hidden');
-  document.querySelector('#chat').classList.remove('hidden');
+  if (!activeRooms.some(room => room.topic === topic)) {
+    const discovery = swarm.join(topicBuffer, { client: true, server: true });
+    await discovery.flushed();
 
-  currentRoom = discovery;
-  clearMessages();
+    activeRooms.push({ topic, discovery });
+
+    console.log('Joined room:', topic); // Debugging log
+
+    renderMessagesForRoom(topic);
+  }
 }
 
 function addRoomToList(topic) {
@@ -250,43 +265,118 @@ function addRoomToList(topic) {
   const roomItem = document.createElement('li');
   roomItem.textContent = truncateHash(topic);
   roomItem.dataset.topic = topic;
+
+  roomItem.addEventListener('dblclick', () => enterEditMode(roomItem));
   roomItem.addEventListener('click', () => switchRoom(topic));
   roomList.appendChild(roomItem);
 
-  config.rooms.push(topic);
+  config.rooms.push({ topic, alias: truncateHash(topic) });
   writeConfigToFile("./config.json");
 }
 
-function addRoomToListWithoutWritingToConfig(topic) {
-  const roomList = document.querySelector('#room-list');
-  const roomItem = document.createElement('li');
-  roomItem.textContent = truncateHash(topic);
-  roomItem.dataset.topic = topic;
-  roomItem.addEventListener('click', () => switchRoom(topic));
-  roomList.appendChild(roomItem);
+function enterEditMode(roomItem) {
+  const originalText = roomItem.textContent;
+  const topic = roomItem.dataset.topic;
+  roomItem.innerHTML = '';
+
+  const input = document.createElement('input');
+  input.type = 'text';
+  input.value = originalText;
+  input.style.maxWidth = '100%'; // Add this line to set the max width
+  input.style.boxSizing = 'border-box'; // Add this line to ensure padding and border are included in the width
+
+  roomItem.appendChild(input);
+
+  input.focus();
+
+  input.addEventListener('blur', () => {
+    exitEditMode(roomItem, input, topic);
+  });
+
+  input.addEventListener('keydown', (e) => {
+    if (e.key === 'Enter') {
+      exitEditMode(roomItem, input, topic);
+    } else if (e.key === 'Escape') {
+      roomItem.textContent = originalText;
+    }
+  });
+}
+
+function exitEditMode(roomItem, input, topic) {
+  const newAlias = input.value.trim();
+  if (newAlias) {
+    roomItem.textContent = newAlias;
+
+    // Update the config with the new alias
+    const roomConfig = config.rooms.find(room => room.topic === topic);
+    if (roomConfig) {
+      roomConfig.alias = newAlias;
+      writeConfigToFile("./config.json");
+    }
+
+    // Check if the edited room is the current room in view
+    const currentTopic = document.querySelector('#chat-room-topic').innerText;
+    if (currentTopic === topic) {
+      const chatRoomName = document.querySelector('#chat-room-name');
+      if (chatRoomName) {
+        chatRoomName.innerText = newAlias;
+      }
+    }
+  } else {
+    roomItem.textContent = truncateHash(topic);
+  }
 }
 
 function switchRoom(topic) {
-  const topicBuffer = b4a.from(topic, 'hex');
-  joinSwarm(topicBuffer);
+  console.log('Switching to room:', topic); // Debugging log
+  const chatRoomTopic = document.querySelector('#chat-room-topic');
+  const chatRoomName = document.querySelector('#chat-room-name');
+
+  if (chatRoomTopic) {
+    chatRoomTopic.innerText = topic; // Set full topic here
+  } else {
+    console.error('Element #chat-room-topic not found');
+  }
+
+  if (chatRoomName) {
+    // Update the room name in the header
+    const room = config.rooms.find(r => r.topic === topic);
+    const roomName = room ? room.alias : truncateHash(topic);
+    chatRoomName.innerText = roomName;
+  } else {
+    console.error('Element #chat-room-name not found');
+  }
+
+  clearMessages();
+  renderMessagesForRoom(topic);
+
+  // Show chat UI elements
+  document.querySelector('#chat').classList.remove('hidden');
+  document.querySelector('#setup').classList.add('hidden');
 }
 
-function leaveRoom() {
-  if (currentRoom) {
-    const topic = b4a.toString(currentRoom.topic, 'hex');
-    const roomItem = document.querySelector(`li[data-topic="${topic}"]`);
-    if (roomItem) {
-      roomItem.remove();
-    }
-
-    config.rooms = config.rooms.filter(e => e !== topic);
-    writeConfigToFile("./config.json");
-
-    currentRoom.destroy();
-    currentRoom = null;
+function leaveRoom(topic) {
+  const roomIndex = activeRooms.findIndex(room => room.topic === topic);
+  if (roomIndex !== -1) {
+    const room = activeRooms[roomIndex];
+    room.discovery.destroy();
+    activeRooms.splice(roomIndex, 1);
+  }
+
+  const roomItem = document.querySelector(`li[data-topic="${topic}"]`);
+  if (roomItem) {
+    roomItem.remove();
+  }
+
+  config.rooms = config.rooms.filter(e => e.topic !== topic);
+  writeConfigToFile("./config.json");
+
+  if (activeRooms.length > 0) {
+    switchRoom(activeRooms[0].topic);
+  } else {
+    document.querySelector('#chat').classList.add('hidden');
+    document.querySelector('#setup').classList.remove('hidden');
   }
-  document.querySelector('#chat').classList.add('hidden');
-  document.querySelector('#setup').classList.remove('hidden');
 }
 
 function sendMessage(e) {
@@ -294,7 +384,11 @@ function sendMessage(e) {
   const message = document.querySelector('#message').value;
   document.querySelector('#message').value = '';
 
-  onMessageAdded(config.userName, message, config.userAvatar);
+  const topic = document.querySelector('#chat-room-topic').innerText;
+
+  console.log('Sending message:', message); // Debugging log
+
+  onMessageAdded(config.userName, message, config.userAvatar, topic);
 
   let peersPublicKeys = [];
   peersPublicKeys.push([...swarm.connections].map(peer => peer.remotePublicKey.toString('hex')));
@@ -306,7 +400,7 @@ function sendMessage(e) {
     name: config.userName,
     message,
     avatar: config.userAvatar,
-    topic: b4a.toString(currentRoom.topic, 'hex'),
+    topic: topic,
     peers: peersPublicKeys, // Deprecated. To be deleted in future updates
     timestamp: Date.now(),
     readableTimestamp: new Date().toLocaleString(), // Added human-readable timestamp
@@ -318,6 +412,41 @@ function sendMessage(e) {
   }
 }
 
+async function handleFileInput(event) {
+  const file = event.target.files[0];
+  if (file) {
+    const reader = new FileReader();
+    reader.onload = async (event) => {
+      const buffer = new Uint8Array(event.target.result);
+      const filePath = `/files/${file.name}`;
+      await drive.put(filePath, buffer);
+      const fileUrl = `http://localhost:${servePort}${filePath}`;
+
+      const topic = document.querySelector('#chat-room-topic').innerText;
+
+      const fileMessage = {
+        type: 'file',
+        name: config.userName,
+        fileName: file.name,
+        file: b4a.toString(buffer, 'base64'),
+        fileType: file.type,
+        avatar: updatePortInUrl(config.userAvatar),
+        topic: topic
+      };
+
+      console.log('Sending file message:', fileMessage); // Debugging log
+
+      const peers = [...swarm.connections];
+      for (const peer of peers) {
+        peer.write(JSON.stringify(fileMessage));
+      }
+
+      addFileMessage(config.userName, file.name, fileUrl, file.type, config.userAvatar, topic);
+    };
+    reader.readAsArrayBuffer(file);
+  }
+}
+
 function sendFileMessage(name, fileUrl, fileType, avatar) {
   const fileName = fileUrl.split('/').pop();
   const messageObj = JSON.stringify({
@@ -327,7 +456,7 @@ function sendFileMessage(name, fileUrl, fileType, avatar) {
     fileUrl,
     fileType,
     avatar,
-    topic: b4a.toString(currentRoom.topic, 'hex'),
+    topic: document.querySelector('#chat-room-topic').innerText,
     timestamp: Date.now(),
   });
 
@@ -336,10 +465,11 @@ function sendFileMessage(name, fileUrl, fileType, avatar) {
     peer.write(messageObj);
   }
 
-  addFileMessage(name, fileName, fileUrl, fileType, avatar);
+  addFileMessage(name, fileName, fileUrl, fileType, avatar, document.querySelector('#chat-room-topic').innerText);
 }
 
-function addFileMessage(from, fileName, fileUrl, fileType, avatar) {
+function addFileMessage(from, fileName, fileUrl, fileType, avatar, topic) {
+  console.log('Adding file message:', { from, fileName, fileUrl, fileType, avatar, topic }); // Debugging log
   const $div = document.createElement('div');
   $div.classList.add('message');
 
@@ -363,16 +493,27 @@ function addFileMessage(from, fileName, fileUrl, fileType, avatar) {
     $image.classList.add('attached-image');
     $content.appendChild($image);
   } else {
-    const $fileLink = document.createElement('a');
-    $fileLink.href = fileUrl;
-    $fileLink.textContent = `File: ${fileName}`;
-    $fileLink.download = fileName;
-    $content.appendChild($fileLink);
+    const $fileButton = document.createElement('button');
+    $fileButton.textContent = `Download File: ${fileName}`;
+    $fileButton.onclick = function() {
+      const $fileLink = document.createElement('a');
+      $fileLink.href = fileUrl;
+      $fileLink.download = fileName;
+      $fileLink.click();
+    };
+    $content.appendChild($fileButton);    
   }
 
   $div.appendChild($content);
-  document.querySelector('#messages').appendChild($div);
-  scrollToBottom();
+
+  // Only render the message if it's for the current room
+  const currentTopic = document.querySelector('#chat-room-topic').innerText;
+  if (currentTopic === topic) {
+    document.querySelector('#messages').appendChild($div);
+    scrollToBottom();
+  } else {
+    console.log(`Message for topic ${topic} not rendered because current topic is ${currentTopic}`); // Debugging log
+  }
 }
 
 function updatePeerCount() {
@@ -387,37 +528,61 @@ function scrollToBottom() {
   container.scrollTop = container.scrollHeight;
 }
 
-function onMessageAdded(from, message, avatar) {
-  const $div = document.createElement('div');
-  $div.classList.add('message');
-
-  const $img = document.createElement('img');
+function onMessageAdded(from, message, avatar, topic) {
+  console.log('Adding message:', { from, message, avatar, topic }); // Debugging log
+  const messageObj = {
+    from,
+    message,
+    avatar
+  };
   
-  $img.src = updatePortInUrl(avatar) || 'https://via.placeholder.com/40'; // Default to a placeholder image if avatar URL is not provided
-  console.log(updatePortInUrl(avatar))
-  $img.classList.add('avatar');
-  $div.appendChild($img);
+  // Add the message to the store
+  addMessageToStore(topic, messageObj);
 
-  const $content = document.createElement('div');
-  $content.classList.add('message-content');
+  // Only render messages for the current room
+  const currentTopic = document.querySelector('#chat-room-topic').innerText;
+  if (currentTopic === topic) {
+    const $div = document.createElement('div');
+    $div.classList.add('message');
 
-  const $header = document.createElement('div');
-  $header.classList.add('message-header');
-  $header.textContent = from;
+    const $img = document.createElement('img');
+    $img.src = updatePortInUrl(avatar) || 'https://via.placeholder.com/40'; // Default to a placeholder image if avatar URL is not provided
+    $img.classList.add('avatar');
+    $div.appendChild($img);
 
-  const $text = document.createElement('div');
-  $text.classList.add('message-text');
+    const $content = document.createElement('div');
+    $content.classList.add('message-content');
 
-  const md = window.markdownit();
-  const markdownContent = md.render(message);
-  $text.innerHTML = markdownContent;
+    const $header = document.createElement('div');
+    $header.classList.add('message-header');
+    $header.textContent = from;
 
-  $content.appendChild($header);
-  $content.appendChild($text);
-  $div.appendChild($content);
+    const $text = document.createElement('div');
+    $text.classList.add('message-text');
 
-  document.querySelector('#messages').appendChild($div);
-  scrollToBottom();
+    const md = window.markdownit({
+      highlight: function (str, lang) {
+        if (lang && hljs.getLanguage(lang)) {
+          try {
+            return hljs.highlight(str, { language: lang }).value;
+          } catch (__) {}
+        }
+        return ''; // use external default escaping
+      }
+    });
+
+    const markdownContent = md.render(message);
+    $text.innerHTML = markdownContent;
+
+    $content.appendChild($header);
+    $content.appendChild($text);
+    $div.appendChild($content);
+
+    document.querySelector('#messages').appendChild($div);
+    scrollToBottom();
+  } else {
+    console.log(`Message for topic ${topic} not rendered because current topic is ${currentTopic}`); // Debugging log
+  }
 }
 
 function truncateHash(hash) {
@@ -429,7 +594,7 @@ async function updateIcon(username, avatarBuffer) {
   if (userIcon) {
     const avatarBlob = new Blob([avatarBuffer], { type: 'image/png' });
     const avatarUrl = URL.createObjectURL(avatarBlob);
-    userIcon.src = avatarUrl;
+    userIcon.src = updatePortInUrl(avatarUrl);
 
     config.userAvatar = avatarUrl;
     writeConfigToFile("./config.json");
@@ -462,4 +627,45 @@ function updatePortInUrl(url) {
   return urlObject.toString();
 }
 
-initialize();
+function renderRoomList() {
+  const roomList = document.querySelector('#room-list');
+  roomList.innerHTML = '';
+
+  config.rooms.forEach(room => {
+    const roomItem = document.createElement('li');
+    roomItem.textContent = room.alias || truncateHash(room.topic);
+    roomItem.dataset.topic = room.topic;
+
+    roomItem.addEventListener('dblclick', () => enterEditMode(roomItem));
+    roomItem.addEventListener('click', () => switchRoom(room.topic));
+    roomList.appendChild(roomItem);
+  });
+}
+
+function renderMessagesForRoom(topic) {
+  console.log('Rendering messages for room:', topic); // Debugging log
+  // Clear the message area
+  clearMessages();
+
+  // Fetch and render messages for the selected room
+  const messages = getMessagesForRoom(topic);
+  messages.forEach(message => {
+    onMessageAdded(message.from, message.message, message.avatar, topic);
+  });
+}
+
+function getMessagesForRoom(topic) {
+  return messagesStore[topic] || [];
+}
+
+function addMessageToStore(topic, messageObj) {
+  if (!messagesStore[topic]) {
+    messagesStore[topic] = [];
+  }
+  messagesStore[topic].push(messageObj);
+}
+
+// Call this function when loading the rooms initially
+renderRoomList();
+
+initialize();

chatBot/includes/Client.js

@@ -1,5 +1,5 @@
 import Hyperswarm from 'hyperswarm';
-import EventEmitter from 'node:events'
+import EventEmitter from 'node:events';
 import b4a from "b4a";
 
 class Client extends EventEmitter {
@@ -8,15 +8,21 @@ class Client extends EventEmitter {
     if(!botName) return console.error("Bot Name is not defined!");
     this.botName = botName;
     this.swarm = new Hyperswarm();
+    this.joinedRooms = new Set(); // Track the rooms the bot has joined
+    this.currentTopic = null; // Track the current topic
     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()));
+        const messageObj = JSON.parse(message.toString());
+        if (this.joinedRooms.has(messageObj.topic)) { // Process message only if it is from a joined room
+          this.currentTopic = messageObj.topic; // Set the current topic from the incoming message
+          if (messageObj.type === "message") this.emit('onMessage', peer, messageObj);
+          if (messageObj.type === "icon") this.emit('onIcon', peer, messageObj);
+          if (messageObj.type === "file") this.emit('onFile', peer, messageObj);
+        }
       });
 
       peer.on('error', e => {
@@ -27,20 +33,13 @@ class Client extends EventEmitter {
 
     this.swarm.on('update', () => {
       console.log(`Connections count: ${this.swarm.connections.size} / Peers count: ${this.swarm.peers.size}`);
-
-      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];
-        const peerTopics = [peerInfo.topics]
-            .filter(topics => topics)
-            .map(topics => topics.map(topic => b4a.toString(topic, 'hex')));
-      });
     });
   }
 
   joinChatRoom(chatRoomID) {
-    this.discovery = this.swarm.join(Buffer.from(chatRoomID, 'hex'), {client: true, server: true});
+    this.joinedRooms.add(chatRoomID); // Add the room to the list of joined rooms
+    this.currentTopic = chatRoomID; // Store the current topic
+    this.discovery = this.swarm.join(Buffer.from(chatRoomID, 'hex'), { client: true, server: true });
     this.discovery.flushed().then(() => {
       console.log(`Bot ${this.botName} joined the chat room.`);
       this.emit('onBotJoinRoom');
@@ -49,17 +48,31 @@ class Client extends EventEmitter {
 
   sendMessage(roomPeers, message) {
     console.log('Bot name:', this.botName);
-    const timestamp = Date.now(); // Generate timestamp
-    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
+    const timestamp = Date.now();
+    const messageObj = {
+      type: 'message',
+      name: this.botName,
+      message,
+      timestamp,
+      topic: this.currentTopic // Include the current topic
+    };
+    const data = JSON.stringify(messageObj);
+    const peers = [...this.swarm.connections].filter(peer => roomPeers.includes(peer.remotePublicKey.toString('hex')));
     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
+    const timestamp = Date.now();
+    const messageObj = {
+      type: 'message',
+      name: this.botName,
+      message,
+      timestamp,
+      topic: this.currentTopic // Include the current topic
+    };
+    const data = JSON.stringify(messageObj);
+    const peers = [...this.swarm.connections];
     for (const peer of peers) peer.write(data);
   }
 

index.html

@@ -7,11 +7,13 @@
   <link rel="stylesheet" type="text/css" href="style.css">
   <script type="module" src="./app.js"></script>
   <script src="https://cdn.jsdelivr.net/npm/markdown-it/dist/markdown-it.min.js"></script>
+  <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/styles/atom-one-dark.min.css">
+  <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.6.0/highlight.min.js"></script>
 </head>
 <body>
   <header>
     <pear-ctrl></pear-ctrl>
-    <div id="linkup-text">LinkUp</div>
+    <div id="linkup-text">LinkUp | Peers: <span id="peers-count">0</span></div>
   </header>
   <main>
     <div id="sidebar">
@@ -44,11 +46,9 @@
       <div id="chat" class="hidden">
         <div id="header">
           <div id="details">
-            <div>
-              Topic: <span id="chat-room-topic"></span>
-            </div>
-            <div>
-              Peers: <span id="peers-count">0</span>
+            <div style="display: inline;">
+              <strong><span id="chat-room-name"></span></strong> | <a href="#" id="copy-topic-link" class="mini-button">Copy Topic</a>
+              <span id="chat-room-topic" style="display: none;"></span>
             </div>
           </div>
           <div id="user-list">
@@ -72,12 +72,59 @@
   <script>
     document.addEventListener('DOMContentLoaded', function() {
       const messageInput = document.getElementById('message');
-      messageInput.addEventListener('keydown', function(event) {
-        if (event.key === 'Enter' && !event.shiftKey) {
+      const copyTopicLink = document.getElementById('copy-topic-link');
+      const chatRoomTopic = document.getElementById('chat-room-topic');
+
+      if (messageInput) {
+        messageInput.addEventListener('keydown', function(event) {
+          if (event.key === 'Enter' && !event.shiftKey) {
+            event.preventDefault();
+            document.getElementById('message-form').dispatchEvent(new Event('submit'));
+          }
+        });
+      }
+
+      if (copyTopicLink) {
+        copyTopicLink.addEventListener('click', function(event) {
           event.preventDefault();
-          document.getElementById('message-form').dispatchEvent(new Event('submit'));
+          if (chatRoomTopic) {
+            const topic = chatRoomTopic.innerText;
+            navigator.clipboard.writeText(topic).then(() => {
+              alert('Topic copied to clipboard!');
+            }).catch(err => {
+              console.error('Failed to copy topic:', err);
+            });
+          } else {
+            console.error('Element #chat-room-topic not found');
+          }
+        });
+      }
+
+      const switchRoom = (topic) => {
+        console.log('Switching to room:', topic); // Debugging log
+        const chatRoomTopic = document.querySelector('#chat-room-topic');
+        const chatRoomName = document.querySelector('#chat-room-name');
+
+        if (chatRoomTopic) {
+          chatRoomTopic.innerText = topic; // Set full topic here
+        } else {
+          console.error('Element #chat-room-topic not found');
         }
-      });
+
+        // Show chat UI elements
+        document.querySelector('#chat').classList.remove('hidden');
+        document.querySelector('#setup').classList.add('hidden');
+      };
+
+      const roomList = document.querySelector('#room-list');
+      if (roomList) {
+        roomList.addEventListener('click', function(event) {
+          const roomItem = event.target.closest('li');
+          if (roomItem) {
+            switchRoom(roomItem.dataset.topic);
+          }
+        });
+      }
     });
   </script>
 </body>

style.css

@@ -12,6 +12,27 @@ body {
     transition: background-color 0.3s ease, color 0.3s ease;
 }
 
+.mini-button {
+    display: inline-block;
+    padding: 3px 7px;
+    font-size: 14px;
+    font-weight: bold;
+    color: #fff;
+    background-color: #7289da;
+    border: none;
+    border-radius: 3px;
+    text-decoration: none;
+    cursor: pointer;
+  }
+
+  .mini-button:hover {
+    background-color: #0056b3;
+  }
+
+.bold {
+    font-weight: bold;
+  }
+
 pear-ctrl[data-platform="darwin"] { float: right; margin-top: 4px; }
 
 pear-ctrl {