# Use Python 3.11 slim
FROM python:3.11-slim

WORKDIR /app

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1

# System deps for building wheels if needed
RUN apt-get update && apt-get install -y \
    gcc \
    && rm -rf /var/lib/apt/lists/*

# Install Python deps
COPY requirements.txt ./
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy app
COPY . .

# Hugging Face Spaces expects port 7860
EXPOSE 7860

# Start server
CMD ["uvicorn", "blackbox_server:app", "--host", "0.0.0.0", "--port", "7860"]