# Build the Vue app from source rather than relying on a host-generated directory.
FROM node:20-alpine AS frontend-builder

WORKDIR /frontend
COPY frontend/package*.json ./
RUN npm ci
COPY frontend/ ./
RUN npm run build

FROM python:3.12-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    DJANGO_SETTINGS_MODULE=config.settings.prod

WORKDIR /app

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

# Keep the runtime dependency set in one lock file used by local and Docker installs.
COPY backend/requirements.txt /tmp/requirements.txt
RUN pip install --no-cache-dir -r /tmp/requirements.txt

COPY backend/ /app/
COPY --from=frontend-builder /frontend/dist/ /app/frontend_dist/

RUN mkdir -p /app/staticfiles /app/media

EXPOSE 8000

HEALTHCHECK --interval=30s --timeout=3s --start-period=10s --retries=3 \
    CMD curl -fsS http://127.0.0.1:8000/api/v1/ping/ || exit 1

CMD ["sh", "infra/scripts/run_prod_granian.sh"]