FROM python:3.11-slim
WORKDIR /app

# system deps (if any) can be added here
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

COPY backend/requirements.txt ./requirements.txt
RUN pip install --no-cache-dir -r requirements.txt

COPY backend/ ./

ENV PYTHONUNBUFFERED=1
EXPOSE 18080

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "18080", "--proxy-headers"]
