Dockerfile

# Stage 1: Build Frontend
FROM node:22-alpine as frontend-build

WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# Stage 2: Build Backend and Final Image
FROM python:3.10-slim

WORKDIR /app

# Install system dependencies if any (e.g. for some pip packages)
# RUN apt-get update && apt-get install -y gcc

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

# Copy backend code
COPY backend/ ./backend/

# Copy built frontend from Stage 1
COPY --from=frontend-build /app/frontend/dist ./frontend/dist

# Expose the correct port for Hugging Face Spaces
EXPOSE 7860

# Command to run the application
# We use host 0.0.0.0 and port 7860 (required by HF Spaces)
CMD ["uvicorn", "backend.app.main:app", "--host", "0.0.0.0", "--port", "7860"]