FROM python:3.11-slim

# Install system dependencies for Docling (PDF, OCR, image processing)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    && rm -rf /var/lib/apt/lists/*

# Create user for HF Spaces (runs as user ID 1000)
RUN useradd -m -u 1000 user
USER user

ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

# Copy requirements and install dependencies
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir torch torchvision --index-url https://download.pytorch.org/whl/cpu && \
    pip install --no-cache-dir -r requirements.txt

# Copy application code
COPY --chown=user src/ ./src/

# Expose port (HF Spaces uses 7860)
EXPOSE 7860

# Run FastAPI with uvicorn
CMD ["uvicorn", "src.api.main:app", "--host", "0.0.0.0", "--port", "7860"]