FROM python:3.12-slim AS base

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    PIP_NO_CACHE_DIR=1

# Build-stage system deps for argon2-cffi + psycopg.
FROM base AS builder
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libpq-dev \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app
COPY pyproject.toml README.md ./
COPY src ./src
RUN pip install --upgrade pip && pip install .

# Runtime stage — slimmer, no compilers.
FROM base AS runtime
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 curl \
    && rm -rf /var/lib/apt/lists/* \
    && useradd --create-home --uid 10001 agensflow

COPY --from=builder /usr/local/lib/python3.12/site-packages /usr/local/lib/python3.12/site-packages
COPY --from=builder /usr/local/bin /usr/local/bin
COPY --from=builder /app /app

WORKDIR /app
USER agensflow

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD curl -fsS http://127.0.0.1:8000/health || exit 1

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