feat: add styles for polling app UI

Responsive single-column layout (max 480px) with styles for:
- Option items with label/vote-button rows
- Voted state highlighting (green tint)
- Active/closed timer color states
- Disabled button opacity
- Full-width copy URL button

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitignore

@@ -0,0 +1 @@
+node_modules/

app.js

@@ -0,0 +1,214 @@
+import {
+  Repo,
+  BroadcastChannelNetworkAdapter,
+  WebSocketClientAdapter,
+  IndexedDBStorageAdapter,
+  isValidAutomergeUrl,
+} from "@automerge/vanillajs";
+
+const REPO = new Repo({
+  network: [
+    new BroadcastChannelNetworkAdapter(),
+    new WebSocketClientAdapter("wss://sync.automerge.org"),
+  ],
+  storage: new IndexedDBStorageAdapter(),
+});
+
+let HANDLE;
+
+function getVotedKey(docUrl) {
+  return `p2p-poll-voted:${docUrl}`;
+}
+
+function getVotedOptions() {
+  const key = getVotedKey(document.location.hash);
+  return new Set(JSON.parse(localStorage.getItem(key) || "[]"));
+}
+
+function markVoted(opt) {
+  const key = getVotedKey(document.location.hash);
+  const voted = getVotedOptions();
+  voted.add(opt);
+  localStorage.setItem(key, JSON.stringify([...voted]));
+}
+
+function unmarkVoted(opt) {
+  const key = getVotedKey(document.location.hash);
+  const voted = getVotedOptions();
+  voted.delete(opt);
+  localStorage.setItem(key, JSON.stringify([...voted]));
+}
+
+const locationHash = document.location.hash.substring(1);
+const statusEl = document.getElementById("status");
+const optionsList = document.getElementById("options-list");
+const optionInput = document.getElementById("option-input");
+const addBtn = document.getElementById("add-btn");
+const duplicateMsg = document.getElementById("duplicate-msg");
+const copyBtn = document.getElementById("copy-btn");
+const timerEl = document.getElementById("timer");
+const startVotingBtn = document.getElementById("start-voting-btn");
+
+if (isValidAutomergeUrl(locationHash)) {
+  statusEl.textContent = "Loading document…";
+  try {
+    HANDLE = await REPO.find(locationHash);
+    statusEl.textContent = "";
+  } catch (err) {
+    statusEl.textContent = "Could not load document. Starting a new one.";
+    HANDLE = REPO.create({ options: [], votes: {}, deadline: null });
+    document.location.hash = HANDLE.url;
+  }
+} else {
+  HANDLE = REPO.create({ options: [], votes: {}, deadline: null });
+  document.location.hash = HANDLE.url;
+}
+
+HANDLE.on("change", ({ doc }) => render(doc));
+
+const initialDoc = HANDLE.doc();
+if (initialDoc) render(initialDoc);
+
+let timerInterval = null;
+
+function render(doc) {
+  renderOptions(doc);
+  renderTimer(doc);
+}
+
+function renderOptions(doc) {
+  const votes = doc.votes || {};
+  const deadline = doc.deadline ?? null;
+  const now = Date.now();
+  const votingClosed = deadline !== null && now >= deadline;
+  const votedOptions = getVotedOptions();
+
+  const sorted = [...(doc.options || [])].sort(
+    (a, b) => (votes[b] || 0) - (votes[a] || 0),
+  );
+
+  optionsList.innerHTML = "";
+  sorted.forEach((opt) => {
+    const count = votes[opt] || 0;
+    const alreadyVoted = votedOptions.has(opt);
+
+    const item = document.createElement("div");
+    item.className = "option-item";
+
+    const label = document.createElement("span");
+    label.className = "option-label";
+    label.textContent = opt;
+
+    const voteBtn = document.createElement("button");
+    voteBtn.className = alreadyVoted ? "vote-btn voted" : "vote-btn";
+    voteBtn.textContent = alreadyVoted ? `✓ ${count}` : `▲ ${count}`;
+    voteBtn.disabled = votingClosed;
+    if (votingClosed) voteBtn.title = "Voting is closed";
+    else if (alreadyVoted) voteBtn.title = "Click to remove your vote";
+
+    voteBtn.addEventListener("click", () => {
+      if (alreadyVoted) {
+        unmarkVoted(opt);
+        HANDLE.change((d) => {
+          if (!d.votes) d.votes = {};
+          d.votes[opt] = Math.max(0, (d.votes[opt] || 0) - 1);
+        });
+      } else {
+        markVoted(opt);
+        HANDLE.change((d) => {
+          if (!d.votes) d.votes = {};
+          d.votes[opt] = (d.votes[opt] || 0) + 1;
+        });
+      }
+    });
+
+    item.appendChild(label);
+    item.appendChild(voteBtn);
+    optionsList.appendChild(item);
+  });
+}
+
+function renderTimer(doc) {
+  const deadline = doc?.deadline ?? null;
+  const now = Date.now();
+
+  if (deadline === null) {
+    timerEl.textContent = "";
+    startVotingBtn.hidden = false;
+    return;
+  }
+
+  startVotingBtn.hidden = true;
+
+  if (now >= deadline) {
+    timerEl.textContent = "Voting closed.";
+    timerEl.className = "timer closed";
+    clearInterval(timerInterval);
+    timerInterval = null;
+    return;
+  }
+
+  const remaining = Math.ceil((deadline - now) / 1000);
+  const mins = Math.floor(remaining / 60);
+  const secs = remaining % 60;
+  timerEl.textContent = `Voting closes in ${mins}:${secs.toString().padStart(2, "0")}`;
+  timerEl.className = "timer active";
+
+  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);
+  });
+});

index.html

@@ -0,0 +1,31 @@
+<!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>

p2p-poll/.gitignore

@@ -1,24 +0,0 @@
-# Nuxt dev/build outputs
-.output
-.data
-.nuxt
-.nitro
-.cache
-dist
-
-# Node dependencies
-node_modules
-
-# Logs
-logs
-*.log
-
-# Misc
-.DS_Store
-.fleet
-.idea
-
-# Local env files
-.env
-.env.*
-!.env.example

p2p-poll/README.md

@@ -1,75 +0,0 @@
-# Nuxt Minimal Starter
-
-Look at the [Nuxt documentation](https://nuxt.com/docs/getting-started/introduction) to learn more.
-
-## Setup
-
-Make sure to install dependencies:
-
-```bash
-# npm
-npm install
-
-# pnpm
-pnpm install
-
-# yarn
-yarn install
-
-# bun
-bun install
-```
-
-## Development Server
-
-Start the development server on `http://localhost:3000`:
-
-```bash
-# npm
-npm run dev
-
-# pnpm
-pnpm dev
-
-# yarn
-yarn dev
-
-# bun
-bun run dev
-```
-
-## Production
-
-Build the application for production:
-
-```bash
-# npm
-npm run build
-
-# pnpm
-pnpm build
-
-# yarn
-yarn build
-
-# bun
-bun run build
-```
-
-Locally preview production build:
-
-```bash
-# npm
-npm run preview
-
-# pnpm
-pnpm preview
-
-# yarn
-yarn preview
-
-# bun
-bun run preview
-```
-
-Check out the [deployment documentation](https://nuxt.com/docs/getting-started/deployment) for more information.

p2p-poll/app/app.vue

@@ -1,152 +0,0 @@
-
-
-<style>
-/* Basic styling to make it look clean */
-body {
-  font-family: system-ui, -apple-system, sans-serif;
-  background-color: #f4f4f9;
-  color: #333;
-  margin: 0;
-  display: flex;
-  justify-content: center;
-  padding: 2rem;
-}
-
-.poll-container {
-  background: white;
-  padding: 2rem;
-  border-radius: 12px;
-  box-shadow: 0 4px 6px rgba(0,0,0,0.1);
-  width: 100%;
-  max-width: 500px;
-}
-
-header {
-  margin-bottom: 2rem;
-  text-align: center;
-}
-
-h1 { margin: 0 0 0.5rem 0; }
-
-.status {
-  font-size: 0.85rem;
-  color: #666;
-}
-.status .connected { color: #10b981; font-weight: bold; }
-
-.add-option-form {
-  display: flex;
-  gap: 0.5rem;
-  margin-bottom: 2rem;
-}
-
-input {
-  flex-grow: 1;
-  padding: 0.75rem;
-  border: 1px solid #ccc;
-  border-radius: 6px;
-  font-size: 1rem;
-}
-
-button {
-  background: #3b82f6;
-  color: white;
-  border: none;
-  padding: 0.75rem 1rem;
-  border-radius: 6px;
-  cursor: pointer;
-  font-weight: bold;
-  transition: background 0.2s;
-}
-
-button:hover { background: #2563eb; }
-
-.poll-list {
-  list-style: none;
-  padding: 0;
-  margin: 0;
-}
-
-.poll-item {
-  display: flex;
-  justify-content: space-between;
-  align-items: center;
-  padding: 1rem;
-  background: #f8fafc;
-  border: 1px solid #e2e8f0;
-  border-radius: 8px;
-  margin-bottom: 0.5rem;
-}
-
-.option-name { font-weight: 500; }
-.vote-section { display: flex; align-items: center; gap: 1rem; }
-.vote-count { font-size: 0.9rem; color: #475569; }
-.vote-btn { padding: 0.4rem 0.8rem; background: #10b981; }
-.vote-btn:hover { background: #059669; }
-.empty-state { text-align: center; color: #94a3b8; font-style: italic; }
-</style>
-<template>
-  <div class="poll-container">
-    <ClientOnly>
-      <header>
-        <h1>P2P Polling App 🗳️</h1>
-        <div class="status">
-          <span :class="{ 'connected': isConnected }">
-            ● {{ isConnected ? 'Synced' : 'Connecting...' }}
-          </span>
-          <span> | Peers online: {{ connectedPeers }}</span>
-        </div>
-      </header>
-
-      <main>
-        <form @submit.prevent="handleAddNewOption" class="add-option-form">
-          <input 
-            v-model="newOption" 
-            type="text" 
-            placeholder="Enter a new poll option..."
-            required
-          />
-          <button type="submit">Add Option</button>
-        </form>
-
-        <div v-if="Object.keys(pollData).length === 0" class="empty-state">
-          No options yet. Be the first to add one!
-        </div>
-
-        <ul v-else class="poll-list">
-          <li v-for="(votes, optionName) in pollData" :key="optionName" class="poll-item">
-            <span class="option-name">{{ optionName }}</span>
-            <div class="vote-section">
-              <span class="vote-count">{{ votes }} {{ votes === 1 ? 'vote' : 'votes' }}</span>
-              <button @click="vote(String(optionName))" class="vote-btn">+1</button>
-            </div>
-          </li>
-        </ul>
-      </main>
-      <template #fallback>
-        <div class="empty-state">Loading P2P Node...</div>
-      </template>
-    </ClientOnly>
-  </div>
-</template>
-
-<script setup lang="ts">
-import { ref } from 'vue';
-// Manually define 'global' for the browser
-if (process.client) {
-  (window as any).global = window;
-}
-import { usePoll } from '../composables/usePoll';
-
-// Because WebRTC requires the browser environment (window/navigator),
-// we ensure our composable only runs on the client side in Nuxt.
-const newOption = ref('');
-
-// Destructure our P2P logic
-const { pollData, isConnected, connectedPeers, addOption, vote } = usePoll();
-
-const handleAddNewOption = () => {
-  addOption(newOption.value);
-  newOption.value = ''; // Reset input
-};
-</script>

p2p-poll/composables/usePoll.ts

@@ -1,81 +0,0 @@
-// composables/usePoll.ts
-import { ref, onMounted, onUnmounted } from 'vue';
-import * as Y from 'yjs';
-
-export const usePoll = () => {
-  // Reactive Vue state to drive the UI
-  const pollData = ref<Record<string, number>>({});
-  const isConnected = ref(false);
-  const connectedPeers = ref(1); // 1 = just you initially
-
-  let ydoc: Y.Doc;
-  let provider: any;
-  let yMap: Y.Map<number>;
-
-  onMounted(async () => {
-    // 1. Initialize the Yjs document
-    ydoc = new Y.Doc();
-
-    // 2. Connect via WebRTC. 
-    // 'nuxt-p2p-poll-demo-room' is the shared room name.
-    // Anyone using this exact string will sync together.
-    const { WebrtcProvider } = await import('y-webrtc');
-    provider = new WebrtcProvider('nuxt-p2p-poll-demo-room', ydoc);
-
-    // Track connection status
-    provider.on('synced', (arg: {synced: boolean}) => {
-      isConnected.value = arg.synced;
-    });
-
-    provider.on('peers', (data: any) => {
-      // data.webrtcPeers contains the connected peer IDs
-      connectedPeers.value = data.webrtcPeers.length + 1; // +1 for self
-    });
-
-    // 3. Define our shared state structure. We'll use a Map 
-    // where the Key is the Poll Option (string) and Value is the Vote Count (number)
-    yMap = ydoc.getMap<number>('shared-poll');
-
-    // 4. Listen for changes from other peers and update our Vue reactive state
-    yMap.observe(() => {
-      pollData.value = yMap.toJSON();
-    });
-
-    // Initial load in case data already exists in the room
-    pollData.value = yMap.toJSON();
-  });
-
-  onUnmounted(() => {
-    // Clean up when the component is destroyed
-    if (provider) {
-      provider.disconnect();
-    }
-    if (ydoc) {
-      ydoc.destroy();
-    }
-  });
-
-  // Action: Add a new option to the poll
-  const addOption = (optionName: string) => {
-    const trimmedName = optionName.trim();
-    if (trimmedName && !yMap.has(trimmedName)) {
-      yMap.set(trimmedName, 0); // Initialize with 0 votes
-    }
-  };
-
-  // Action: Vote for an existing option
-  const vote = (optionName: string) => {
-    if (yMap.has(optionName)) {
-      const currentVotes = yMap.get(optionName) || 0;
-      yMap.set(optionName, currentVotes + 1);
-    }
-  };
-
-  return {
-    pollData,
-    isConnected,
-    connectedPeers,
-    addOption,
-    vote
-  };
-};

p2p-poll/nuxt.config.ts

@@ -1,11 +0,0 @@
-// https://nuxt.com/docs/api/configuration/nuxt-config
-export default defineNuxtConfig({
-  compatibilityDate: '2025-07-15',
-  devtools: { enabled: true },
-  ssr: false,
-  vite: {
-    optimizeDeps: {
-      include: ['yjs', 'y-webrtc']
-    }
-  }
-})

p2p-poll/package.json

@@ -1,19 +0,0 @@
-{
-  "name": "p2p-poll",
-  "type": "module",
-  "private": true,
-  "scripts": {
-    "build": "nuxt build",
-    "dev": "nuxt dev",
-    "generate": "nuxt generate",
-    "preview": "nuxt preview",
-    "postinstall": "nuxt prepare"
-  },
-  "dependencies": {
-    "nuxt": "^4.1.3",
-    "vue": "^3.5.30",
-    "vue-router": "^5.0.3",
-    "y-webrtc": "^10.3.0",
-    "yjs": "^13.6.30"
-  }
-}

p2p-poll/public/robots.txt

@@ -1,2 +0,0 @@
-User-Agent: *
-Disallow:

p2p-poll/tsconfig.json

@@ -1,18 +0,0 @@
-{
-  // https://nuxt.com/docs/guide/concepts/typescript
-  "files": [],
-  "references": [
-    {
-      "path": "./.nuxt/tsconfig.app.json"
-    },
-    {
-      "path": "./.nuxt/tsconfig.server.json"
-    },
-    {
-      "path": "./.nuxt/tsconfig.shared.json"
-    },
-    {
-      "path": "./.nuxt/tsconfig.node.json"
-    }
-  ]
-}

package.json

@@ -0,0 +1,23 @@
+{
+  "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"
+  }
+}

styles.css

@@ -0,0 +1,93 @@
+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%;
+}

vite.config.js

@@ -0,0 +1,7 @@
+import { defineConfig } from 'vite'
+import wasm from 'vite-plugin-wasm'
+import topLevelAwait from 'vite-plugin-top-level-await'
+
+export default defineConfig({
+  plugins: [wasm(), topLevelAwait()]
+})