FROM python:3.12-slim AS base

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

RUN apt-get update \
    && apt-get install -y --no-install-recommends curl \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

COPY pyproject.toml README.md ./
COPY app ./app
COPY alembic ./alembic
COPY alembic.ini ./

RUN pip install --upgrade pip \
    && pip install .

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=5s --start-period=20s --retries=3 \
    CMD curl -fsS http://127.0.0.1:8000/health || exit 1

CMD ["sh", "-c", "alembic upgrade head && uvicorn app.main:app --host 0.0.0.0 --port 8000 --proxy-headers --forwarded-allow-ips=${TRUSTED_PROXIES:-*}"]