Dockerfile

# --- Frontend Stage (React + Vite) ---
FROM node:20-alpine AS frontend
WORKDIR /ui

# Copy package files and install deps
COPY frontend/package*.json ./
RUN npm ci --silent || npm install --silent

# Copy frontend source and build
COPY frontend ./
RUN npm run build

# --- Backend Stage (FastAPI + Python) ---
FROM python:3.11-slim
WORKDIR /app

# Install Python dependencies
COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend code
COPY backend ./backend
COPY app.py Procfile .env.example ./

# Copy built frontend from frontend stage
COPY --from=frontend /ui/dist ./frontend_dist

# Bust cache so Hugging Face doesn’t reuse stale Node layers
ARG CACHE_BUST=1

EXPOSE 7860
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]