# ── Étape 1 : build du frontend ─────────────────────────────────────────
FROM node:20-alpine AS frontend
WORKDIR /app/frontend
COPY frontend/package.json frontend/package-lock.json* ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# ── Étape 2 : runtime backend (sert aussi le front statique) ────────────
FROM python:3.12-slim AS runtime
WORKDIR /app

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    WORKSPACE_DIR=/workspace \
    DATA_DIR=/data \
    PORT=8080

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

COPY backend/ ./backend/
# Frontend compilé servi en statique par FastAPI
COPY --from=frontend /app/frontend/dist ./backend/static

RUN mkdir -p /workspace /data

EXPOSE 8080
WORKDIR /app/backend
CMD ["sh", "-c", "uvicorn app.main:app --host 0.0.0.0 --port ${PORT}"]