FROM python:3.9-slim

# Install system dependencies (FFmpeg is mandatory)
RUN apt-get update && apt-get install -y \
    ffmpeg \
    libsm6 \
    libxext6 \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user (Hugging Face best practice)
RUN useradd -m -u 1000 user
USER user
ENV PATH="/home/user/.local/bin:${PATH}"

WORKDIR /app

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

# Copy the app code
COPY --chown=user . .

# Hugging Face Spaces expects port 7860
EXPOSE 7860

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