let conversation = [
    { role: 'bot', message: "Hi there! I'm Chat Bot! May I know your name?" }
];
let selectedIngredients = [];
let selectedMenuItem = null;
let cart = [];

function addMessage(role, message) {
    const chatMessages = document.getElementById('chatMessages');
    if (!chatMessages) {
        console.error('Chat messages container not found!');
        return;
    }
    const messageDiv = document.createElement('div');
    messageDiv.className = role === 'bot' ? 'bot-message' : 'user-message';
    messageDiv.textContent = message;
    chatMessages.appendChild(messageDiv);
    chatMessages.scrollTop = chatMessages.scrollHeight;
    console.log(`Added ${role} message: ${message}`);
}

function sendMessage() {
    const userInput = document.getElementById('userInput');
    if (!userInput) {
        console.error('User input field not found!');
        return;
    }
    const message = userInput.value.trim();
    if (message) {
        addMessage('user', message);
        conversation.push({ role: 'user', message: message });
        userInput.value = '';
        setTimeout(() => handleResponse(message), 500);
    } else {
        console.warn('Empty message!');
    }
}

function handleResponse(userInput) {
    const lastMessage = conversation[conversation.length - 1].message.toLowerCase();
    let botResponse = '';
    let options = [];

    // Handle name input (first user response after bot's greeting)
    if (conversation.length === 2 && conversation[0].role === 'bot' && conversation[0].message.includes('May I know your name?')) {
        botResponse = `Nice to meet you, ${userInput}! 😊 How can I assist you today?`;
        options = [
            { text: 'How do I contact customer support?', class: 'blue' },
            { text: 'What are your business hours?', class: 'blue' },
            { text: 'How do I reset my password?', class: 'blue' }
        ];
    } else if (lastMessage.includes('how do i contact customer support?')) {
        botResponse = 'You can email us at support@company.com.';
    } else if (lastMessage.includes('what are your business hours?')) {
        botResponse = 'We are open from 9 AM to 6 PM, Monday to Friday.';
    } else if (lastMessage.includes('how do i reset my password?')) {
        botResponse = 'Click on "Forgot Password" on the login page.';
    } else {
        // Fallback for unrecognized input
        botResponse = "Sorry, I didn't understand that. Could you please clarify or choose an option?";
        if (conversation.length === 2) {
            options = [
                { text: 'How do I contact customer support?', class: 'blue' },
                { text: 'What are your business hours?', class: 'blue' },
                { text: 'How do I reset my password?', class: 'blue' }
            ];
        }
    }

    addMessage('bot', botResponse);
    if (options.length > 0) {
        displayOptions(options);
    }
}

function displayOptions(options) {
    const chatMessages = document.getElementById('chatMessages');
    if (!chatMessages) {
        console.error('Chat messages container not found for options!');
        return;
    }

    // Display each option as a chat message
    options.forEach(opt => {
        const messageDiv = document.createElement('div');
        messageDiv.className = 'bot-message'; // This ensures the options look like bot messages
        const button = document.createElement('button');
        button.textContent = opt.text;
        button.className = `option-button ${opt.class}`;
        
        // When an option is clicked, treat it as a user response and trigger the appropriate handler
        button.onclick = () => {
            addMessage('user', opt.text);
            conversation.push({ role: 'user', message: opt.text });
            setTimeout(() => handleResponse(opt.text), 500);
        };

        messageDiv.appendChild(button);
        chatMessages.appendChild(messageDiv); // Append the button inside a bot message container
    });

    // Scroll to the bottom of the chat container
    chatMessages.scrollTop = chatMessages.scrollHeight;
}


document.getElementById('userInput').addEventListener('keypress', function(e) {
    if (e.key === 'Enter') {
        sendMessage();
    }
});

console.log('Script loaded successfully');