// Using DeepSeek Chat API (open source alternative)
const API_URL = 'https://api.deepseek.com/v1/chat/completions';

// Main chat function with improved error handling
async function callChatAPI(message, imageData = null) {
    try {
        if (imageData) {
            return "I see you've uploaded an image. Currently I can process text messages. Please describe the image to me.";
        }

        const response = await fetch(API_URL, {
            method: 'POST',
            headers: {
                'Content-Type': 'application/json'
            },
            body: JSON.stringify({
                model: 'deepseek-chat',
                messages: [{
                    role: 'user',
                    content: message
                }],
                temperature: 0.7,
                max_tokens: 200
            })
        });
if (!response.ok) {
            throw new Error('API request failed');
        }

        const data = await response.json();
        return data.choices[0]?.message?.content || "I didn't get a response. Please try again.";
    } catch (error) {
        console.error('API Error:', error);
        return "Sorry, I'm having trouble connecting to the AI service. Please try again later.";
    }
}
// Utility function to convert file to base64
function fileToBase64(file) {
    return new Promise((resolve, reject) => {
        const reader = new FileReader();
        reader.readAsDataURL(file);
        reader.onload = () => resolve(reader.result);
        reader.onerror = error => reject(error);
    });
}

// Initialize chat with welcome message
document.addEventListener('DOMContentLoaded', () => {
    const chatContainer = document.getElementById('chat-container');
    if (chatContainer && chatContainer.children.length === 1) {
        const welcomeMsg = `Hello! I'm your AI assistant. How can I help you today? I can:
- Answer questions
- Explain concepts
- Help with coding
- Provide suggestions

Try asking me anything!`;
        const messageDiv = document.createElement('div');
        messageDiv.className = 'flex justify-start mb-4';
        messageDiv.innerHTML = `
            <div class="bg-gray-200 dark:bg-gray-700 text-gray-800 dark:text-white rounded-lg rounded-bl-none p-3 max-w-xs">
                ${marked.parse(welcomeMsg)}
            </div>
        `;
        chatContainer.appendChild(messageDiv);
    }
});