# syntax = docker/dockerfile:1

FROM python:3.11-slim AS base

WORKDIR /app

# Build (install dependencies)
FROM base AS build

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

COPY backend/ .

# Production
FROM base AS production

ENV PYTHONUNBUFFERED=1

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

HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
  CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/docs')" || exit 1

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

# Development
FROM base AS development

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

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