FROM python:3.12-slim

WORKDIR /app

# Install system deps for chromadb / sentence-transformers
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

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

COPY . .

EXPOSE 7860

CMD ["streamlit", "run", "chatbot/app.py", \
     "--server.port=7860", \
     "--server.address=0.0.0.0", \
     "--server.headless=true"]