FROM node:20-slim AS frontend-builder
WORKDIR /app/frontend
COPY frontend/package.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

FROM python:3.11-slim
WORKDIR /app

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

# Copy backend source
COPY backend/ ./

# Copy built frontend into backend's static folder
COPY --from=frontend-builder /app/frontend/dist ./static

ENV PORT=7860

EXPOSE 7860

CMD ["sh", "-c", "uvicorn main:app --host 0.0.0.0 --port ${PORT}"]