FROM node:18-bullseye AS frontend-builder
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

FROM python:3.9-slim

RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH
WORKDIR $HOME/app

# Install dependencies
COPY --chown=user:user frontend/requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt

# Copy backend code
COPY --chown=user:user frontend/api ./api
COPY --chown=user:user frontend/.env ./

# Copy compiled frontend from builder
COPY --chown=user:user --from=frontend-builder /app/frontend/dist ./frontend/dist

# Expose Hugging Face Space port
EXPOSE 7860

# Start FastAPI
CMD ["uvicorn", "api.index:app", "--host", "0.0.0.0", "--port", "7860"]