FROM python:3.12-slim

WORKDIR /app

# Install the ledger package itself (deps come from pyproject.toml [project.dependencies]).
COPY pyproject.toml ./
COPY src ./src
RUN pip install --no-cache-dir .

RUN groupadd --system ledger && useradd --system --gid ledger --home-dir /app ledger \
    && mkdir -p /data && chown -R ledger:ledger /data /app
USER ledger

ENV LEDGER_DB_PATH=/data/ledger.db

VOLUME ["/data"]
EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8000/health', timeout=2)" || exit 1

CMD ["uvicorn", "m2_ledger.api:app", "--host", "0.0.0.0", "--port", "8000"]