// Time update
function updateTime() {
    const now = new Date();
    const hours = now.getHours();
    const minutes = now.getMinutes();
    const ampm = hours >= 12 ? 'PM' : 'AM';
    const displayHours = hours % 12 || 12;
    const displayMinutes = minutes < 10 ? '0' + minutes : minutes;
    document.getElementById('taskbarTime').textContent = `${displayHours}:${displayMinutes} ${ampm}`;
}

updateTime();
setInterval(updateTime, 1000);

// Start menu toggle
const startButton = document.querySelector('.start-button');
const startMenu = document.getElementById('startMenu');

startButton.addEventListener('click', (e) => {
    e.stopPropagation();
    startMenu.style.display = startMenu.style.display === 'none' ? 'block' : 'none';
});

document.addEventListener('click', () => {
    startMenu.style.display = 'none';
});

// Desktop icons
const desktopIcons = document.querySelectorAll('.desktop-icon');
const aiChatWindow = document.getElementById('aiChatWindow');

desktopIcons.forEach(icon => {
    icon.addEventListener('dblclick', () => {
        const app = icon.dataset.app;
        if (app === 'ai-chat') {
            aiChatWindow.style.display = 'block';
        }
    });
});

// Window controls
const windowControls = document.querySelectorAll('.window-btn');

windowControls.forEach(btn => {
    btn.addEventListener('click', (e) => {
        const window = e.target.closest('.window');
        if (e.target.classList.contains('close')) {
            window.style.display = 'none';
        } else if (e.target.classList.contains('minimize')) {
            window.style.display = 'none';
        }
    });
});

// Window dragging
let isDragging = false;
let dragOffset = { x: 0, y: 0 };

const windowHeader = document.querySelector('.window-header');

windowHeader.addEventListener('mousedown', (e) => {
    isDragging = true;
    const rect = aiChatWindow.getBoundingClientRect();
    dragOffset.x = e.clientX - rect.left;
    dragOffset.y = e.clientY - rect.top;
});

document.addEventListener('mousemove', (e) => {
    if (isDragging) {
        aiChatWindow.style.left = (e.clientX - dragOffset.x) + 'px';
        aiChatWindow.style.top = (e.clientY - dragOffset.y) + 'px';
    }
});

document.addEventListener('mouseup', () => {
    isDragging = false;
});

// Chat functionality
const chatMessages = document.getElementById('chatMessages');
const chatInput = document.getElementById('chatInput');
const sendButton = document.getElementById('sendButton');

function addMessage(role, content) {
    const messageDiv = document.createElement('div');
    messageDiv.className = `chat-message ${role}`;
    messageDiv.innerHTML = `
        <strong>${role === 'user' ? 'You' : 'AI Assistant'}:</strong>
        <p>${content}</p>
    `;
    chatMessages.appendChild(messageDiv);
    chatMessages.scrollTop = chatMessages.scrollHeight;
}

async function sendMessage() {
    const message = chatInput.value.trim();
    if (!message) return;

    addMessage('user', message);
    chatInput.value = '';
    
    const loadingDiv = document.createElement('div');
    loadingDiv.className = 'chat-message assistant loading';
    loadingDiv.innerHTML = '<strong>AI Assistant:</strong><p>Thinking...</p>';
    chatMessages.appendChild(loadingDiv);
    chatMessages.scrollTop = chatMessages.scrollHeight;

    try {
        const response = await fetch('https://api.novita.ai/openai/v1/chat/completions', {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json',
                'Authorization': 'Bearer sk_IFT2vaiqJ1naH0HU-NS_ixSF3iAo6x_2zkpGEKcLXQM'
            },
            body: JSON.stringify({
                model: 'deepseek/deepseek-v3-0324',
                messages: [
                    { role: 'system', content: 'You are a helpful assistant.' },
                    { role: 'user', content: message }
                ],
                max_tokens: 1000,
                temperature: 0.7
            })
        });

        if (!response.ok) {
            throw new Error(`HTTP error! status: ${response.status}`);
        }

        const data = await response.json();
        const assistantMessage = data.choices[0].message.content;
        
        loadingDiv.remove();
        addMessage('assistant', assistantMessage);
    } catch (error) {
        loadingDiv.remove();
        addMessage('assistant', `<span class="error">Error: ${error.message}</span>`);
    }
}

sendButton.addEventListener('click', sendMessage);
chatInput.addEventListener('keypress', (e) => {
    if (e.key === 'Enter') {
        sendMessage();
    }
});