CS460-Projects/chatserver/templates/index.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Web Chat Client</title>
    <script src="https://cdn.socket.io/4.5.0/socket.io.min.js"></script>
    <style>
        /* Light Mode Styles */
        body.light-mode {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            height: 100vh;
            background-color: white;
            color: black;
        }
        body.light-mode #topBar {
            background-color: #007bff;
            color: white;
        }
        body.light-mode #topBar button {
            background-color: white;
            color: #007bff;
        }
        body.light-mode #topBar button:hover {
            background-color: #e6e6e6;
        }
        body.light-mode #chat {
            background-color: #f9f9f9;
        }
        body.light-mode #messageInput button {
            background-color: #007bff;
            color: white;
        }
        body.light-mode #messageInput button:hover {
            background-color: #0056b3;
        }

        /* Dark Mode Styles */
        body.dark-mode {
            font-family: Arial, sans-serif;
            margin: 0;
            padding: 0;
            display: flex;
            flex-direction: column;
            height: 100vh;
            background-color: #121212;
            color: white;
        }
        body.dark-mode #topBar {
            background-color: #1e1e1e;
            color: white;
        }
        body.dark-mode #topBar button {
            background-color: #333;
            color: white;
        }
        body.dark-mode #topBar button:hover {
            background-color: #555;
        }
        body.dark-mode #chat {
            background-color: #1e1e1e;
        }
        body.dark-mode #messageInput button {
            background-color: #333;
            color: white;
        }
        body.dark-mode #messageInput button:hover {
            background-color: #555;
        }

        /* Shared Styles */
        #topBar {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 10px;
        }
        #topBar span {
            font-size: 16px;
        }
        #chat {
            flex: 1;
            overflow-y: auto;
            padding: 10px;
            border-bottom: 1px solid #ccc;
        }
        #messageInput {
            display: flex;
            padding: 10px;
        }
        #messageInput input {
            flex: 1;
            padding: 10px;
            font-size: 16px;
        }
        #messageInput button {
            padding: 10px;
            font-size: 16px;
            border: none;
            cursor: pointer;
            border-radius: 5px;
        }
    </style>
</head>
<body class="dark-mode">
    <!-- Top Bar -->
    <div id="topBar">
        <span id="userInfo">Username: <strong id="currentUsername"></strong> | Chat Room: <strong id="currentChatRoom"></strong></span>
        <div>
            <button onclick="changeUsername()">Change Username</button>
            <button onclick="changeChatRoom()">Change Chat Room</button>
            <button onclick="toggleTheme()">Toggle Theme</button>
        </div>
    </div>

    <!-- Chat Messages -->
    <div id="chat"></div>

    <!-- Message Input -->
    <div id="messageInput">
        <input type="text" id="message" placeholder="Type a message..." onkeydown="handleKeyPress(event)">
        <button onclick="sendMessage()">Send</button>
    </div>

    <script>
        // Determine the default server URL based on the web client's host
        const defaultServerUrl = `${window.location.protocol}//${window.location.hostname}:5000`;

        // Ask the user for the server URL, defaulting to the web client's host
        const serverUrl = prompt(`Enter the WebSocket server URL (default: ${defaultServerUrl}):`) || defaultServerUrl;

        // Connect to the WebSocket server
        const socket = io(serverUrl);

        const chatDiv = document.getElementById('chat');
        const messageInput = document.getElementById('message');
        const currentUsernameElement = document.getElementById('currentUsername');
        const currentChatRoomElement = document.getElementById('currentChatRoom');

        // Ask the user for their username and chat room
        let username = prompt("Enter your username:") || "Anonymous";
        let chatRoom = prompt("Enter chat room (default: 'default')") || "default";

        // Update the top bar with the current username and chat room
        currentUsernameElement.textContent = username;
        currentChatRoomElement.textContent = chatRoom;

        // Join the chat room
        console.log('Joining chat room:', { username: username, chat_room: chatRoom });
        socket.emit('join', { username: username, chat_room: chatRoom });

        // Log connection status
        socket.on('connect', () => {
            console.log('Connected to WebSocket server');
        });

        socket.on('disconnect', () => {
            console.log('Disconnected from WebSocket server');
        });

        // Listen for messages from the server
        socket.on('message', (data) => {
            const messageElement = document.createElement('div');
            messageElement.textContent = `${data.username || 'Server'}: ${data.message}`;
            chatDiv.appendChild(messageElement);
            chatDiv.scrollTop = chatDiv.scrollHeight; // Auto-scroll to the bottom
        });

        // Send a message to the server
        function sendMessage() {
            const message = messageInput.value;
            if (message.trim() !== '') {
                console.log('Sending message:', { username: username, chat_room: chatRoom, message: message });
                socket.emit('send_message', { username: username, chat_room: chatRoom, message: message });
                messageInput.value = ''; // Clear the input field
            }
        }

        // Handle the "Enter" key to send a message
        function handleKeyPress(event) {
            if (event.key === "Enter") {
                sendMessage();
            }
        }

        // Change the username
        function changeUsername() {
            const newUsername = prompt("Enter your new username:");
            if (newUsername && newUsername.trim() !== "") {
                username = newUsername.trim();
                currentUsernameElement.textContent = username;
                console.log(`Username changed to: ${username}`);
                socket.emit('send_message', { username: 'Server', chat_room: chatRoom, message: `${username} has changed their username.` });
            }
        }

        // Change the chat room
        function changeChatRoom() {
            const newChatRoom = prompt("Enter the new chat room:");
            if (newChatRoom && newChatRoom.trim() !== "") {
                socket.emit('leave', { username: username, chat_room: chatRoom });
                chatRoom = newChatRoom.trim();
                currentChatRoomElement.textContent = chatRoom;
                console.log(`Switched to chat room: ${chatRoom}`);
                socket.emit('join', { username: username, chat_room: chatRoom });
                chatDiv.innerHTML = ""; // Clear the chat history
            }
        }

        // Toggle between light mode and dark mode
        function toggleTheme() {
            const body = document.body;
            if (body.classList.contains('light-mode')) {
                body.classList.remove('light-mode');
                body.classList.add('dark-mode');
                localStorage.setItem('theme', 'dark-mode'); // Save preference
            } else {
                body.classList.remove('dark-mode');
                body.classList.add('light-mode');
                localStorage.setItem('theme', 'light-mode'); // Save preference
            }
        }

        // Apply saved theme on page load
        const savedTheme = localStorage.getItem('theme') || 'dark-mode'; // Default to dark mode
        document.body.classList.add(savedTheme);
    </script>
</body>
</html>