# ── Stage 1 : Build SvelteKit ────────────────────────────────────────────────
FROM node:20-slim AS frontend-builder

WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm ci --prefer-offline

COPY frontend/ ./
RUN npm run build          # → frontend/build/

# ── Stage 2 : Runtime Python ─────────────────────────────────────────────────
FROM python:3.11-slim

WORKDIR /app

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

# Code backend
COPY backend/ ./backend/

# Build frontend statique (servi par FastAPI)
COPY --from=frontend-builder /app/frontend/build ./frontend/build

# HF Spaces exige le port 7860
EXPOSE 7860

WORKDIR /app/backend
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860", "--workers", "1"]