FROM python:3.11-slim

WORKDIR /app

# System deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Python deps first (cached layer)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy source
COPY . .

# Non-root user (HuggingFace Spaces requirement)
RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

# HuggingFace Spaces uses port 7860
EXPOSE 7860

CMD ["uvicorn", "server.app:app", "--host", "0.0.0.0", "--port", "7860"]