FROM python:3.11-slim

# Install system dependencies for Manim and general usage
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    ffmpeg \
    libcairo2-dev \
    libpango1.0-dev \
    texlive \
    texlive-latex-extra \
    texlive-fonts-recommended \
    dvisvgm \
    pkg-config \
    python3-dev \
    sudo \
    espeak-ng \
    && rm -rf /var/lib/apt/lists/*

# Create a non-root user (Hugging Face requirement)
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

# Copy requirements first to leverage Docker cache
COPY --chown=user requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY --chown=user . .

# Make start script executable
RUN chmod +x start.sh

# Expose the port (Hugging Face Spaces uses 7860 by default)
EXPOSE 7860

# Set environment variables
ENV PYTHONUNBUFFERED=1

# Run the start script
CMD ["./start.sh"]