app.py

import gradio as gr
from huggingface_hub import InferenceClient
from datasets import load_dataset
import random
import secrets
# Fix for SessionMiddleware error in HF Spaces
def configure_gradio_session():
    """Configure session middleware for Gradio in HF Spaces"""
    try:
        from starlette.middleware.sessions import SessionMiddleware
        import gradio.routes
        
        # Store original create_app function
        if hasattr(gradio.routes, 'App') and hasattr(gradio.routes.App, 'create_app'):
            original_create_app = gradio.routes.App.create_app
            
            def patched_create_app(self, *args, **kwargs):
                app = original_create_app(self, *args, **kwargs)
                # Add session middleware
                app.add_middleware(
                    SessionMiddleware,
                    secret_key=os.getenv("HF_SESSION_SECRET", secrets.token_hex(32))
                )
                return app
            
            gradio.routes.App.create_app = patched_create_app
            
    except (ImportError, AttributeError) as e:
        print(f"Warning: Could not configure session middleware: {e}")

# Call the configuration function
configure_gradio_session()

# Load math datasets for sample problems
ds = load_dataset("HuggingFaceH4/ultrachat_200k", streaming=True)
def load_sample_problems():
    """Load sample problems from math datasets"""
    try:
        # Load GSM8K for sample problems
        gsm8k = load_dataset("openai/gsm8k", "main", streaming=True)
        samples = []
        for i, item in enumerate(gsm8k["train"]):
            samples.append(item["question"])
            if i >= 50:  # Load 50 samples
                break
        return samples
    except:
        return [
            "What is the derivative of f(x) = 3x² + 2x - 1?",
            "A triangle has sides of length 5, 12, and 13. What is its area?",
            "If log₂(x) + log₂(x+6) = 4, find the value of x.",
            "Find the limit: lim(x→0) (sin(x)/x)",
            "Solve the system: x + 2y = 7, 3x - y = 4"
        ]

# Initialize sample problems
math_samples = load_sample_problems()

def create_math_system_message():
    """Create specialized system prompt for mathematics"""
    return """You are Mathetics AI, an advanced mathematics tutor and problem solver. 

🧮 **Your Expertise:**
- Step-by-step problem solving with clear explanations
- Multiple solution approaches when applicable
- Proper mathematical notation and terminology
- Verification of answers through different methods

📐 **Problem Domains:**
- Arithmetic, Algebra, and Number Theory
- Geometry, Trigonometry, and Coordinate Geometry
- Calculus (Limits, Derivatives, Integrals)
- Statistics, Probability, and Data Analysis
- Competition Mathematics (AMC, AIME level)

💡 **Teaching Style:**
1. **Understand the Problem** - Identify what's being asked
2. **Plan the Solution** - Choose the appropriate method
3. **Execute Step-by-Step** - Show all work clearly
4. **Verify the Answer** - Check if the result makes sense
5. **Alternative Methods** - Mention other possible approaches

Always be precise, educational, and encourage mathematical thinking."""

def respond(
    message,
    history: list[dict[str, str]],
    system_message,
    max_tokens,
    temperature,
    top_p,
    hf_token: gr.OAuthToken,
):
    """
    Enhanced response function for mathematical problem solving
    """
    # Use Qwen Math model for better mathematical reasoning
    client = InferenceClient(
        token=hf_token.token if hf_token else None,
        model="Qwen/Qwen2.5-Math-7B-Instruct"  # Specialized math model
    )

    # Build message history
    messages = [{"role": "system", "content": system_message}]
    messages.extend(history)
    messages.append({"role": "user", "content": message})

    response = ""

    try:
        for message_chunk in client.chat_completion(
            messages,
            max_tokens=max_tokens,
            stream=True,
            temperature=temperature,
            top_p=top_p,
        ):
            choices = message_chunk.choices
            token = ""
            if len(choices) and choices[0].delta.content:
                token = choices[0].delta.content

            response += token
            yield response
            
    except Exception as e:
        error_msg = f"❌ **Error**: {str(e)}\n\n💡 **Troubleshooting**:\n- Make sure you're logged in with Hugging Face\n- Check if the model is accessible\n- Try a simpler problem first"
        yield error_msg

def get_random_sample():
    """Get a random sample problem"""
    if math_samples:
        return random.choice(math_samples)
    return "Solve for x: 2x² + 5x - 3 = 0"

def set_difficulty_preset(difficulty):
    """Set temperature and other params based on difficulty"""
    presets = {
        "Elementary": (0.2, 0.8, 512),    # Low temp for accuracy
        "High School": (0.3, 0.85, 768),  # Balanced
        "College": (0.4, 0.9, 1024),      # More exploration
        "Competition": (0.3, 0.8, 1536)   # Detailed solutions
    }
    return presets.get(difficulty, (0.3, 0.85, 768))

# Create the enhanced ChatInterface
chatbot = gr.ChatInterface(
    respond,
    type="messages",
    title="🧮 **Mathetics AI** - Advanced Mathematics Solver",
    description="""
    **Powered by Qwen 2.5-Math** | **Specialized for Mathematical Problem Solving**
    
    ✨ **Capabilities**: Algebra • Geometry • Calculus • Statistics • Competition Math
    📚 **Features**: Step-by-step solutions • Multiple approaches • Clear explanations
    """,
    additional_inputs=[
        gr.Textbox(
            value=create_math_system_message(), 
            label="🧠 System Message (Math Tutor Personality)",
            lines=3,
            max_lines=10
        ),
        gr.Slider(
            minimum=256, 
            maximum=2048, 
            value=768, 
            step=64, 
            label="📝 Max Tokens (Solution Length)"
        ),
        gr.Slider(
            minimum=0.1, 
            maximum=1.0, 
            value=0.3, 
            step=0.1, 
            label="🎯 Temperature (Creativity vs Precision)"
        ),
        gr.Slider(
            minimum=0.1,
            maximum=1.0,
            value=0.85,
            step=0.05,
            label="🔍 Top-p (Response Diversity)",
        ),
    ],
    examples=[
        ["What is the derivative of f(x) = 3x² + 2x - 1?"],
        ["A triangle has sides of length 5, 12, and 13. What is its area?"],
        ["If log₂(x) + log₂(x+6) = 4, find the value of x."],
        ["A bag contains 5 red balls and 7 blue balls. What's the probability of drawing 2 red balls without replacement?"],
        ["Find the limit: lim(x→0) (sin(x)/x)"],
        ["Solve the system of equations: x + 2y = 7 and 3x - y = 4"],
        ["What is the integral of ∫(2x³ - 5x + 3)dx?"],
        ["In a right triangle, if one angle is 30° and the hypotenuse is 10, find the lengths of the other two sides."]
    ],
    cache_examples=False,  # Don't cache for dynamic math problems
    concurrency_limit=10,
)

# Enhanced interface with additional features
with gr.Blocks(
    title="🧮 Mathetics AI", 
    theme=gr.themes.Soft(),
    css="""
    .math-highlight {
        background-color: #f0f8ff;
        padding: 10px;
        border-left: 4px solid #4CAF50;
        margin: 10px 0;
        border-radius: 5px;
    }
    .difficulty-selector {
        background-color: #fff3e0;
        padding: 15px;
        border-radius: 10px;
        margin: 10px 0;
    }
    """
) as demo:
    
    gr.Markdown("""
    # 🧮 **Mathetics AI** - Advanced Mathematics Solver
    
    **Your Personal AI Math Tutor** | Specialized in step-by-step problem solving across all mathematical domains
    """)
    
    with gr.Row():
        with gr.Column(scale=4):
            # Main chat interface
            chatbot.render()
            
        with gr.Column(scale=1):
            # Sidebar with additional features
            with gr.Accordion("🎲 **Quick Actions**", open=True):
                
                difficulty_preset = gr.Dropdown(
                    choices=["Elementary", "High School", "College", "Competition"],
                    value="High School",
                    label="🎯 Problem Difficulty",
                    elem_classes=["difficulty-selector"]
                )
                
                sample_btn = gr.Button("🎯 Get Sample Problem", variant="secondary", size="sm")
                help_btn = gr.Button("❓ Math Help Tips", variant="secondary", size="sm")
                
                # Quick math tools
                gr.Markdown("### 🔧 **Quick Tools**")
                gr.Markdown("""
                - **Algebra**: Equations, inequalities, factoring
                - **Geometry**: Area, volume, trigonometry  
                - **Calculus**: Derivatives, integrals, limits
                - **Statistics**: Probability, distributions
                - **Number Theory**: Prime factorization, GCD/LCM
                """)
    
    # Footer with information
    gr.Markdown("""
    ---
    **🔧 Technical Details:**
    - **Model**: Qwen/Qwen2.5-Math-7B-Instruct (Specialized for Mathematics)
    - **Authentication**: Automatic via Hugging Face OAuth
    - **Features**: Real-time streaming responses, step-by-step solutions
    
    **💡 Usage Tips:**
    - Be specific about what you want to find or solve
    - Mention if you want step-by-step solutions
    - Ask for alternative solution methods
    - Request verification of your own solutions
    """)
    
    # Event handlers for additional functionality
    def insert_sample(difficulty):
        sample = get_random_sample()
        return sample
    
    def show_help():
        return """**Math Help Tips:**
        
        1. **Be Specific**: "Find the derivative of..." instead of "Help with calculus"
        2. **Show Your Work**: "I got x=5, is this correct?"
        3. **Ask for Steps**: "Show me step-by-step how to solve..."
        4. **Request Verification**: "Check my solution to this problem"
        5. **Alternative Methods**: "What's another way to solve this?"
        """
    
    # Connect sample button (this would need to be integrated with the chat properly)
    sample_btn.click(
        lambda x: get_random_sample(),
        inputs=[difficulty_preset],
        outputs=[]  # Would need proper integration with chat input
    )

if __name__ == "__main__":
    demo.launch()