import os
import httpx


def generate_long_answer(question):
    """Generate detailed answers using OpenRouter's DeepSeek API"""
    try:
        with httpx.Client(timeout=10.0) as client:
            response = client.post(
                url="https://openrouter.ai/api/v1/chat/completions",
                headers={
                    "Authorization": f"Bearer {os.getenv('OPENROUTER_API_NEW')}",
                    "Content-Type": "application/json",
                    "HTTP-Referer": "https://sreepathi-ravikumar-sample.hf.space",
                    "X-Title": "Educational AI Assistant"
                },
                json={
                    "model": "deepseek/deepseek-chat-v3-0324:free",
                    "stream":True,
                    "messages": [{
                        "role": "user",
                        "content": f"condition every topics or heading only must startswith # and endswith :  \n\n{question}"
                    }],
                    "temperature": 0.3,
                    "max_tokens": 599
                }
            )
        response.raise_for_status()
        return response.json()['choices'][0]['message']['content']
    
    except Exception as e:
        return f"Error generating answer: {str(e)}"