remote-ui/chat.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>WebSocket Chat</title>
  <style>
    body {
      font-family: Arial, Helvetica, sans-serif;
      align-items: center;
    }
    #chat-box {
      height: 800px;
      overflow-y: scroll;
      border: 1px solid #ccc;
      padding: 10px;
    }
    #message-input {
      width: 90%;
      border: 1px solid #999999;
      padding: 5px;
    }
    .client_message {
      text-align: right;
    }
  </style>
</head>
<body>
  <div id="chat-box"></div>
  <input type="text" id="message-input" placeholder="Type your message..." onkeypress="input_event(event)">
  <button onclick="sendMessage()">Send</button>

  <script>
    const socket = new WebSocket('ws://localhost:9002');
    const chatBox = document.getElementById('chat-box');
    const messageInput = document.getElementById('message-input');

    // Event listener for when the WebSocket connection is established
    socket.addEventListener('open', (event) => {
      console.log('WebSocket connection opened:', event);
    });

    // Event listener for when a message is received from the WebSocket server
    socket.addEventListener('message', (event) => {
      chatBox.innerHTML += `<p>${event.data}</p>`;
      chatBox.scrollTop = chatBox.scrollHeight; // Auto-scroll to the bottom
    });

    // Function to send a message to the WebSocket server
    function sendMessage() {
      const message = messageInput.value;

      if (message.trim() !== '') {
        socket.send(message);
        chatBox.innerHTML += `<p class="client_message">${message}</p>`;
        chatBox.scrollTop = chatBox.scrollHeight;
        messageInput.value = '';
      }
    }
    
    function input_event(event) {
    if (event.key == "Enter") {
        sendMessage();
      }
    }
  </script>
</body>
</html>