# syntax = docker/dockerfile:1

FROM python:3.11-slim AS base

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

WORKDIR /app

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

# ── Build ─────────────────────────────────────────────────────────────────────
FROM base AS build

COPY backend/requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY backend/ .

# ── Production ────────────────────────────────────────────────────────────────
FROM base AS production

COPY --from=build /usr/local/lib/python3.11/site-packages /usr/local/lib/python3.11/site-packages
COPY --from=build /usr/local/bin/uvicorn /usr/local/bin/uvicorn
COPY --from=build /usr/local/bin/alembic /usr/local/bin/alembic
COPY --from=build /app /app

EXPOSE 8002

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
    CMD curl -f http://localhost:8002/api/health || exit 1

CMD ["sh", "-c", "alembic upgrade head && uvicorn app.main:app --host 0.0.0.0 --port 8002"]

# ── Development ───────────────────────────────────────────────────────────────
FROM base AS development

COPY backend/requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

WORKDIR /app
CMD ["sh", "-c", "alembic upgrade head && uvicorn app.main:app --host 0.0.0.0 --port 8002 --reload"]