BidLock/test-socket.html at main · Rudyy75/BidLock · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Live Auction Leaderboard (Socket.io)</title>
  <style>
    body { font-family: monospace; padding: 20px; background: #0d1117; color: #c9d1d9; }
    .card { background: #161b22; padding: 20px; border-radius: 8px; border: 1px solid #30363d; margin-bottom: 20px; }
    .flash { animation: flash-green 0.5s; }
    @keyframes flash-green { 0% { background-color: #2ea043; } 100% { background-color: transparent; } }
    .bid { margin: 5px 0; padding: 5px; border-bottom: 1px solid #30363d; }
  </style>
</head>
<body>
  <h1>Live Auction Feed</h1>

  <div class="card" id="inputContainer">
    <label>Enter Auction ID to Watch:</label>
    <input type="text" id="auctionId" value="aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa" style="width: 300px; padding:5px;">
    <button onclick="joinAuction()">Join Stream</button>
  </div>

  <div class="card" id="auctionData" style="display:none;">
    <h2 id="auctionTitle">Waiting for data...</h2>
    <h3 style="color:#2ea043">Current Max: $<span id="maxBid">0</span></h3>
    <hr>
    <h4>Top Bidders:</h4>
    <div id="bidsList">
      <i>No bids yet. Run the demo script!</i>
    </div>
  </div>

  <script src="https://cdn.socket.io/4.7.4/socket.io.min.js"></script>
  <script>
    const socket = io('http://localhost:3000');

    socket.on('connect', () => {
      console.log('Connected to WebSocket server with ID:', socket.id);
    });

    socket.on('auction-update', (data) => {
      console.log('Real-time Update Received:', data);

      const container = document.getElementById('auctionData');
      container.classList.remove('flash');
      void container.offsetWidth; // trigger reflow
      container.classList.add('flash');

      document.getElementById('auctionTitle').innerText = data.auction.title;
      document.getElementById('maxBid').innerText = data.auction.current_max_bid;

      const bidsList = document.getElementById('bidsList');
      bidsList.innerHTML = '';

      data.topBids.forEach(bid => {
        const div = document.createElement('div');
        div.className = 'bid';
        div.innerText = `User ${bid.bidder_id.substring(0,8)}... bid $${bid.bid_amount}`;
        bidsList.appendChild(div);
      });
    });

    function joinAuction() {
      const auctionIdInputValue = document.getElementById('auctionId').value;
      if (!auctionIdInputValue) return;

      socket.emit('join-auction', auctionIdInputValue);
      document.getElementById('auctionData').style.display = 'block';
      document.getElementById('inputContainer').style.display = 'none';

      // Perform initial HTTP fetch to populate the board immediately
      fetch(`http://localhost:3000/api/auctions/${auctionIdInputValue}`)
        .then(res => res.json())
        .then(data => {
            document.getElementById('auctionTitle').innerText = data.auction?.title || "Auction Found";
            document.getElementById('maxBid').innerText = data.auction?.current_max_bid || "0";
        })
        .catch(console.error);
    }
  </script>
</body>
</html>