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proposal-5
| Author | SHA1 | Date | |
|---|---|---|---|
| c02f1cfb4c |
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.gitignore
vendored
1
.gitignore
vendored
@@ -1 +0,0 @@
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node_modules/
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200
PollingApp.html
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200
PollingApp.html
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Peer‑to‑Peer Poll – up to 14 users (no vote loops)</title>
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<style>
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body {font-family:Arial,Helvetica,sans-serif; margin:20px;}
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#options li {margin:5px 0;}
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button {margin-left:5px;}
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</style>
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</head>
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<body>
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<h2>Peer‑to‑Peer Poll (max 14 participants)</h2>
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<div id="setup">
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<label>Your Peer ID: <input id="myId" readonly size="30"></label><br><br>
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<label>Room host ID (leave empty if you are the first client):
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<input id="hostId" placeholder="host peer id">
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</label>
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<button id="joinBtn">Join / Create Room</button>
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<p id="status"></p>
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</div>
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<hr>
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<h3>Poll</h3>
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<ul id="options"></ul>
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<input id="newOption" placeholder="New option text">
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<button id="addOptionBtn">Add option</button>
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<script src="https://unpkg.com/peerjs@1.5.4/dist/peerjs.min.js"></script>
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<script>
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/* ---------- 1. Initialise PeerJS ---------- */
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const peer = new Peer(); // public signalling server
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const myIdInput = document.getElementById('myId');
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const statusEl = document.getElementById('status');
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let isHost = false; // true for the first client
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let connections = []; // all open DataConnections
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let knownPeers = new Set(); // IDs of every peer we know (including host)
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peer.on('open', id => {
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myIdInput.value = id;
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statusEl.textContent = 'Enter a host ID (or leave empty) and click Join.';
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});
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/* ---------- 2. Accept incoming connections (host side) ---------- */
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peer.on('connection', incoming => {
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registerConnection(incoming);
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});
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/* ---------- 3. Join / create a room ---------- */
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document.getElementById('joinBtn').onclick = () => {
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const hostId = document.getElementById('hostId').value.trim();
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if (hostId) {
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isHost = false;
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connectToPeer(hostId);
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statusEl.textContent = `Connecting to host ${hostId}…`;
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} else {
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isHost = true;
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knownPeers.add(peer.id);
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statusEl.textContent = 'Room created – share this Peer ID with others.';
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}
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};
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/* ---------- 4. Helper: connect to a remote peer ---------- */
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function connectToPeer(peerId) {
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if (knownPeers.has(peerId)) return;
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const conn = peer.connect(peerId);
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registerConnection(conn);
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}
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/* ---------- 5. Register a DataConnection ---------- */
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function registerConnection(conn) {
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if (!conn) return;
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connections.push(conn);
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knownPeers.add(conn.peer);
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conn.on('open', () => {
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// 1️⃣ Send full poll state
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conn.send({type: 'full', payload: poll, msgId: crypto.randomUUID()});
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// 2️⃣ If we are the host, tell the newcomer about other peers
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if (isHost) {
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const others = Array.from(knownPeers).filter(id => id !== conn.peer && id !== peer.id);
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if (others.length) conn.send({type: 'peer-list', payload: others, msgId: crypto.randomUUID()});
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}
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});
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conn.on('data', data => handleMessage(data, conn.peer));
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conn.on('close', () => {
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connections = connections.filter(c => c !== conn);
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knownPeers.delete(conn.peer);
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});
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}
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/* ---------- 6. Shared poll state ---------- */
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let poll = {options: []}; // each option: {id, text, votes}
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/* ---------- 7. Track my own votes ---------- */
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const myVotes = new Set(); // option.id values
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/* ---------- 8. Remember which messages we already processed ---------- */
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const seenMsgIds = new Set();
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/* ---------- 9. Broadcast helper (skip the sender) ---------- */
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function broadcast(msg, except = null) {
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connections.forEach(c => {
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if (c.open && c.peer !== except) c.send(msg);
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});
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}
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/* ---------- 10. Message handling ---------- */
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function handleMessage(msg, senderId) {
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// Ignore duplicates
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if (seenMsgIds.has(msg.msgId)) return;
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seenMsgIds.add(msg.msgId);
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switch (msg.type) {
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case 'full':
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poll = msg.payload;
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render();
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break;
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case 'add':
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poll.options.push(msg.payload);
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render();
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broadcast(msg, senderId); // forward once
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break;
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case 'vote':
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const opt = poll.options.find(o => o.id === msg.payload.id);
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if (opt) opt.votes++;
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render();
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broadcast(msg, senderId);
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break;
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case 'peer-list':
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msg.payload.forEach(id => {
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if (id !== peer.id && !knownPeers.has(id)) connectToPeer(id);
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});
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break;
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}
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}
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/* ---------- 11. UI rendering ---------- */
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function render() {
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const ul = document.getElementById('options');
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ul.innerHTML = '';
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poll.options.forEach(opt => {
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const li = document.createElement('li');
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li.textContent = `${opt.text} – ${opt.votes} vote(s)`;
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const btn = document.createElement('button');
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btn.textContent = myVotes.has(opt.id) ? 'Voted' : 'Vote';
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btn.disabled = myVotes.has(opt.id);
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btn.onclick = () => {
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// Record locally – prevents double‑click on the same client
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myVotes.add(opt.id);
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btn.textContent = 'Voted';
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btn.disabled = true;
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const voteMsg = {
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type: 'vote',
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payload: {id: opt.id},
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msgId: crypto.randomUUID()
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};
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// Apply locally first
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opt.votes++;
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render();
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// Send to all peers
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broadcast(voteMsg);
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};
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li.appendChild(btn);
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ul.appendChild(li);
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});
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}
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/* ---------- 12. Add new option ---------- */
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document.getElementById('addOptionBtn').onclick = () => {
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const txt = document.getElementById('newOption').value.trim();
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if (!txt) return;
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const option = {id: crypto.randomUUID(), text: txt, votes: 0};
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poll.options.push(option);
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render();
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const addMsg = {
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type: 'add',
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payload: option,
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msgId: crypto.randomUUID()
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};
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broadcast(addMsg);
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document.getElementById('newOption').value = '';
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};
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</script>
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</body>
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</html>
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@@ -1 +1,7 @@
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# P2P Poll App
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# P2P Poll App
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This is a very simple polling app using peerjs.
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It runs as a single HTML file and can handle multiple users in one poll room.
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The app once open is self explanatory.
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App created with the help of GPTOSS120B.
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214
app.js
214
app.js
@@ -1,214 +0,0 @@
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import {
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Repo,
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BroadcastChannelNetworkAdapter,
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WebSocketClientAdapter,
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IndexedDBStorageAdapter,
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isValidAutomergeUrl,
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} from "@automerge/vanillajs";
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const REPO = new Repo({
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network: [
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new BroadcastChannelNetworkAdapter(),
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new WebSocketClientAdapter("wss://sync.automerge.org"),
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],
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storage: new IndexedDBStorageAdapter(),
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});
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let HANDLE;
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function getVotedKey(docUrl) {
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return `p2p-poll-voted:${docUrl}`;
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}
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function getVotedOptions() {
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const key = getVotedKey(document.location.hash);
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return new Set(JSON.parse(localStorage.getItem(key) || "[]"));
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}
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function markVoted(opt) {
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const key = getVotedKey(document.location.hash);
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const voted = getVotedOptions();
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voted.add(opt);
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localStorage.setItem(key, JSON.stringify([...voted]));
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}
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function unmarkVoted(opt) {
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const key = getVotedKey(document.location.hash);
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const voted = getVotedOptions();
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voted.delete(opt);
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localStorage.setItem(key, JSON.stringify([...voted]));
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}
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const locationHash = document.location.hash.substring(1);
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const statusEl = document.getElementById("status");
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const optionsList = document.getElementById("options-list");
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const optionInput = document.getElementById("option-input");
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const addBtn = document.getElementById("add-btn");
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const duplicateMsg = document.getElementById("duplicate-msg");
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const copyBtn = document.getElementById("copy-btn");
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const timerEl = document.getElementById("timer");
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const startVotingBtn = document.getElementById("start-voting-btn");
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if (isValidAutomergeUrl(locationHash)) {
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statusEl.textContent = "Loading document…";
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try {
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HANDLE = await REPO.find(locationHash);
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statusEl.textContent = "";
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} catch (err) {
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statusEl.textContent = "Could not load document. Starting a new one.";
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HANDLE = REPO.create({ options: [], votes: {}, deadline: null });
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document.location.hash = HANDLE.url;
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}
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} else {
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HANDLE = REPO.create({ options: [], votes: {}, deadline: null });
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document.location.hash = HANDLE.url;
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}
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HANDLE.on("change", ({ doc }) => render(doc));
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const initialDoc = HANDLE.doc();
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if (initialDoc) render(initialDoc);
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let timerInterval = null;
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function render(doc) {
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renderOptions(doc);
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renderTimer(doc);
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}
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function renderOptions(doc) {
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const votes = doc.votes || {};
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const deadline = doc.deadline ?? null;
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const now = Date.now();
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const votingClosed = deadline !== null && now >= deadline;
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const votedOptions = getVotedOptions();
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const sorted = [...(doc.options || [])].sort(
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(a, b) => (votes[b] || 0) - (votes[a] || 0),
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);
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optionsList.innerHTML = "";
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sorted.forEach((opt) => {
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const count = votes[opt] || 0;
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const alreadyVoted = votedOptions.has(opt);
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const item = document.createElement("div");
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item.className = "option-item";
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const label = document.createElement("span");
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label.className = "option-label";
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label.textContent = opt;
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const voteBtn = document.createElement("button");
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voteBtn.className = alreadyVoted ? "vote-btn voted" : "vote-btn";
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voteBtn.textContent = alreadyVoted ? `✓ ${count}` : `▲ ${count}`;
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voteBtn.disabled = votingClosed;
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if (votingClosed) voteBtn.title = "Voting is closed";
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else if (alreadyVoted) voteBtn.title = "Click to remove your vote";
|
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voteBtn.addEventListener("click", () => {
|
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if (alreadyVoted) {
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unmarkVoted(opt);
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HANDLE.change((d) => {
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if (!d.votes) d.votes = {};
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d.votes[opt] = Math.max(0, (d.votes[opt] || 0) - 1);
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});
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} else {
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markVoted(opt);
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HANDLE.change((d) => {
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if (!d.votes) d.votes = {};
|
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d.votes[opt] = (d.votes[opt] || 0) + 1;
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||||
});
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||||
}
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});
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item.appendChild(label);
|
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item.appendChild(voteBtn);
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optionsList.appendChild(item);
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||||
});
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}
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|
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function renderTimer(doc) {
|
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const deadline = doc?.deadline ?? null;
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const now = Date.now();
|
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|
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if (deadline === null) {
|
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timerEl.textContent = "";
|
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startVotingBtn.hidden = false;
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return;
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}
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startVotingBtn.hidden = true;
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|
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if (now >= deadline) {
|
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timerEl.textContent = "Voting closed.";
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timerEl.className = "timer closed";
|
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clearInterval(timerInterval);
|
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timerInterval = null;
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return;
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}
|
||||
|
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const remaining = Math.ceil((deadline - now) / 1000);
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const mins = Math.floor(remaining / 60);
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const secs = remaining % 60;
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timerEl.textContent = `Voting closes in ${mins}:${secs.toString().padStart(2, "0")}`;
|
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timerEl.className = "timer active";
|
||||
|
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if (!timerInterval) {
|
||||
timerInterval = setInterval(() => {
|
||||
const d = HANDLE.doc();
|
||||
if (!d) return;
|
||||
renderTimer(d);
|
||||
renderOptions(d);
|
||||
if (Date.now() >= d.deadline) {
|
||||
clearInterval(timerInterval);
|
||||
timerInterval = null;
|
||||
}
|
||||
}, 1000);
|
||||
}
|
||||
}
|
||||
|
||||
startVotingBtn.addEventListener("click", () => {
|
||||
HANDLE.change((d) => {
|
||||
d.deadline = Date.now() + 2 * 60 * 1000;
|
||||
});
|
||||
});
|
||||
|
||||
addBtn.addEventListener("click", () => {
|
||||
const value = optionInput.value.trim();
|
||||
if (!value) return;
|
||||
|
||||
const doc = HANDLE.doc();
|
||||
const valueLower = value.toLowerCase();
|
||||
const isDuplicate = (doc?.options || []).some(
|
||||
(opt) => opt.toLowerCase() === valueLower,
|
||||
);
|
||||
|
||||
if (isDuplicate) {
|
||||
duplicateMsg.textContent = `"${value}" is already in the list.`;
|
||||
duplicateMsg.hidden = false;
|
||||
return;
|
||||
}
|
||||
|
||||
duplicateMsg.hidden = true;
|
||||
HANDLE.change((d) => {
|
||||
if (!d.options) d.options = [];
|
||||
d.options.push(value);
|
||||
});
|
||||
optionInput.value = "";
|
||||
});
|
||||
|
||||
optionInput.addEventListener("keydown", (e) => {
|
||||
if (e.key === "Enter") addBtn.click();
|
||||
});
|
||||
|
||||
optionInput.addEventListener("input", () => {
|
||||
duplicateMsg.hidden = true;
|
||||
});
|
||||
|
||||
copyBtn.addEventListener("click", () => {
|
||||
navigator.clipboard.writeText(window.location.href).then(() => {
|
||||
copyBtn.textContent = "Copied!";
|
||||
setTimeout(() => (copyBtn.textContent = "Copy URL"), 1500);
|
||||
});
|
||||
});
|
||||
31
index.html
31
index.html
@@ -1,31 +0,0 @@
|
||||
<!doctype html>
|
||||
<html lang="en">
|
||||
<head>
|
||||
<meta charset="UTF-8" />
|
||||
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||||
<title>P2P Polling App</title>
|
||||
<link rel="stylesheet" href="./styles.css" />
|
||||
</head>
|
||||
<body>
|
||||
<div id="app">
|
||||
<h1>P2P Polling App</h1>
|
||||
<div id="status"></div>
|
||||
<div id="add-option">
|
||||
<input
|
||||
type="text"
|
||||
id="option-input"
|
||||
placeholder="Enter an option..."
|
||||
/>
|
||||
<button id="add-btn">Add Option</button>
|
||||
</div>
|
||||
<div id="duplicate-msg" hidden></div>
|
||||
<div id="timer-section">
|
||||
<div id="timer"></div>
|
||||
<button id="start-voting-btn">Start 2-min Vote</button>
|
||||
</div>
|
||||
<div id="options-list"></div>
|
||||
<button id="copy-btn">Copy URL</button>
|
||||
</div>
|
||||
<script type="module" src="./app.js"></script>
|
||||
</body>
|
||||
</html>
|
||||
23
package.json
23
package.json
@@ -1,23 +0,0 @@
|
||||
{
|
||||
"name": "p2p-poll-app",
|
||||
"type": "module",
|
||||
"engines": {
|
||||
"node": ">=24"
|
||||
},
|
||||
"scripts": {
|
||||
"dev": "vite",
|
||||
"build": "vite build",
|
||||
"preview": "vite preview"
|
||||
},
|
||||
"dependencies": {
|
||||
"@automerge/automerge-repo": "^2.0.0",
|
||||
"@automerge/automerge-repo-network-websocket": "^2.0.0",
|
||||
"@automerge/automerge-repo-storage-indexeddb": "^2.0.0",
|
||||
"@automerge/vanillajs": "^2.5.3"
|
||||
},
|
||||
"devDependencies": {
|
||||
"vite": "^6.0.0",
|
||||
"vite-plugin-top-level-await": "^1.4.0",
|
||||
"vite-plugin-wasm": "^3.3.0"
|
||||
}
|
||||
}
|
||||
1083
pnpm-lock.yaml
generated
1083
pnpm-lock.yaml
generated
File diff suppressed because it is too large
Load Diff
93
styles.css
93
styles.css
@@ -1,93 +0,0 @@
|
||||
body {
|
||||
font-family: sans-serif;
|
||||
max-width: 480px;
|
||||
margin: 40px auto;
|
||||
padding: 0 16px;
|
||||
}
|
||||
|
||||
#add-option {
|
||||
display: flex;
|
||||
gap: 8px;
|
||||
margin-bottom: 8px;
|
||||
}
|
||||
|
||||
#option-input {
|
||||
flex: 1;
|
||||
padding: 8px;
|
||||
font-size: 1rem;
|
||||
border: 1px solid #ccc;
|
||||
border-radius: 4px;
|
||||
}
|
||||
|
||||
#duplicate-msg {
|
||||
color: #c00;
|
||||
font-size: 0.9rem;
|
||||
margin-bottom: 12px;
|
||||
}
|
||||
|
||||
button {
|
||||
padding: 8px 16px;
|
||||
font-size: 1rem;
|
||||
cursor: pointer;
|
||||
border: 1px solid #ccc;
|
||||
border-radius: 4px;
|
||||
background: #fff;
|
||||
}
|
||||
|
||||
button:hover:not(:disabled) {
|
||||
background: #f0f0f0;
|
||||
}
|
||||
|
||||
button:disabled {
|
||||
opacity: 0.5;
|
||||
cursor: default;
|
||||
}
|
||||
|
||||
#timer-section {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
gap: 12px;
|
||||
margin-bottom: 16px;
|
||||
}
|
||||
|
||||
.timer.active {
|
||||
font-weight: bold;
|
||||
color: #1a6e1a;
|
||||
}
|
||||
|
||||
.timer.closed {
|
||||
font-weight: bold;
|
||||
color: #c00;
|
||||
}
|
||||
|
||||
.option-item {
|
||||
display: flex;
|
||||
align-items: center;
|
||||
justify-content: space-between;
|
||||
padding: 10px 12px;
|
||||
border: 1px solid #ddd;
|
||||
border-radius: 4px;
|
||||
margin-bottom: 8px;
|
||||
}
|
||||
|
||||
.option-label {
|
||||
flex: 1;
|
||||
}
|
||||
|
||||
.vote-btn {
|
||||
padding: 4px 12px;
|
||||
font-size: 0.9rem;
|
||||
white-space: nowrap;
|
||||
}
|
||||
|
||||
.vote-btn.voted {
|
||||
background: #e6f4e6;
|
||||
border-color: #4a9e4a;
|
||||
color: #2a6e2a;
|
||||
}
|
||||
|
||||
|
||||
#copy-btn {
|
||||
margin-top: 16px;
|
||||
width: 100%;
|
||||
}
|
||||
@@ -1,7 +0,0 @@
|
||||
import { defineConfig } from 'vite'
|
||||
import wasm from 'vite-plugin-wasm'
|
||||
import topLevelAwait from 'vite-plugin-top-level-await'
|
||||
|
||||
export default defineConfig({
|
||||
plugins: [wasm(), topLevelAwait()]
|
||||
})
|
||||
Reference in New Issue
Block a user