Dockerfile

# Hugging Face Spaces Dockerfile
FROM python:3.11-slim

# Set working directory
WORKDIR /app

# Install system dependencies for WeasyPrint, pycairo and document processing
RUN apt-get update && apt-get install -y \
    libpango-1.0-0 \
    libpangocairo-1.0-0 \
    libgdk-pixbuf-2.0-0 \
    libffi-dev \
    shared-mime-info \
    # Build dependencies for pycairo
    gcc \
    pkg-config \
    libcairo2-dev \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first for caching
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY . .

# Create necessary directories
RUN mkdir -p knowledge_base exports uploads data

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV PORT=7860
ENV HF_SPACES=1

# Expose port (HF Spaces uses 7860)
EXPOSE 7860

# Run with gunicorn
CMD ["gunicorn", "app:app", "--bind", "0.0.0.0:7860", "--workers", "2", "--threads", "4", "--timeout", "300"]