FROM python:3.11-slim

# ffmpeg is the only system dependency
RUN apt-get update && \
    apt-get install -y --no-install-recommends ffmpeg && \
    apt-get clean && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

COPY app.py .

# HuggingFace Spaces routes external traffic to port 7860
EXPOSE 7860

CMD ["python", "app.py"]