FROM python:3.9-slim

# Install Node.js for frontend build
RUN apt-get update && apt-get install -y curl && \
    curl -fsSL https://deb.nodesource.com/setup_18.x | bash - && \
    apt-get install -y nodejs && \
    rm -rf /var/lib/apt/lists/*

# Hugging Face Spaces require running as a non-root user with ID 1000
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:$PATH"

WORKDIR /app

# Copy requirements and install Python deps
COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade -r requirements.txt

# Copy frontend source and build
COPY --chown=user frontend/ ./frontend/
RUN cd frontend && npm install && npm run build

# Copy backend source
COPY --chown=user backend/ ./backend/
COPY --chown=user codeblue_context.py .

# Copy built frontend to backend static directory
RUN rm -rf backend/static && mkdir -p backend/static && cp -r frontend/dist/* backend/static/

# Set environment variables for Hugging Face
ENV PORT=7860
ENV HOST=0.0.0.0

EXPOSE 7860

# Run FastAPI server
CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "7860"]