# Build stage - backend
FROM python:3.10-slim as backend-builder
WORKDIR /app
COPY backend/requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Runtime stage - backend
FROM python:3.10-slim as backend
WORKDIR /app
COPY --from=backend-builder /usr/local/lib/python3.10/site-packages /usr/local/lib/python3.10/site-packages
COPY backend /app
ENV PYTHONUNBUFFERED=1
EXPOSE 8000
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]

# Frontend build
FROM node:22-alpine as frontend-builder
WORKDIR /app
COPY frontend/package*.json ./
RUN npm ci
COPY frontend .
RUN npm run build

# Frontend runtime
FROM node:22-alpine as frontend
WORKDIR /app
COPY --from=frontend-builder /app/.next ./.next
COPY --from=frontend-builder /app/node_modules ./node_modules
COPY --from=frontend-builder /app/package*.json ./
COPY frontend/public ./public
EXPOSE 3000
CMD ["npm", "start"]