# Stage 1: build the React frontend
FROM node:20-slim AS frontend-build
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# Stage 2: Python backend + built frontend
FROM python:3.11-slim
WORKDIR /app

# System deps for OpenCV and PyMuPDF
RUN apt-get update && apt-get install -y --no-install-recommends \
    libgl1 libglib2.0-0 \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

COPY backend/ ./backend/
COPY scripts/ ./scripts/
COPY --from=frontend-build /app/frontend/dist ./frontend/dist

# HF Spaces serves apps on port 7860
EXPOSE 7860
CMD ["sh", "-c", "python scripts/init_db.py && uvicorn backend.main:app --host 0.0.0.0 --port 7860"]