# ── Stage 1: dependency installation ─────────────────────────────────────────
FROM python:3.12-slim AS builder

WORKDIR /app

RUN pip install --upgrade pip

COPY pyproject.toml .
RUN pip install --prefix=/install .

# ── Stage 2: runtime ──────────────────────────────────────────────────────────
FROM python:3.12-slim

WORKDIR /app

# Copy installed packages from builder
COPY --from=builder /install /usr/local

# Copy application source
COPY app ./app
COPY alembic ./alembic
COPY alembic.ini .

EXPOSE 8000

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