FROM python:3.12-slim

ARG VERSION=dev
ENV VERSION=${VERSION}
ENV PYTHONUNBUFFERED=1
ENV DATA_DIR=/data

WORKDIR /app

# Install dependencies first (layer caching)
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy application
COPY app/ app/

EXPOSE 8000

CMD ["gunicorn", "-b", "0.0.0.0:8000", "-w", "2", "--access-logfile", "-", "app.main:app"]