# --- Stage 1: Build Frontend ---
FROM node:20-alpine AS frontend-builder
WORKDIR /app/frontend
COPY frontend/package*.json ./
RUN npm install
COPY frontend/ ./
RUN npm run build

# --- Stage 2: Serve Backend & Frontend ---
FROM python:3.11-slim
RUN apt-get update && apt-get install -y --no-install-recommends \
    git \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Copy backend requirements and install
COPY backend/requirements.txt ./backend/
RUN pip install --no-cache-dir -r backend/requirements.txt

# Copy backend source
COPY backend/ ./backend/

# Copy compiled frontend build
COPY --from=frontend-builder /app/frontend/dist /app/frontend/dist

# Expose port (Hugging Face Spaces requires port 7860)
EXPOSE 7860

# Run FastAPI from the backend directory so imports resolve locally
WORKDIR /app/backend
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]