FROM python:3.11-slim

# Install system dependencies for ROM extraction
RUN apt-get update && apt-get install -y --no-install-recommends \
    p7zip-full \
    unrar-free \
    curl \
    gosu \
    && rm -rf /var/lib/apt/lists/*

# Create app directory
RUN mkdir -p /app

# Copy RGSX application files to /app
COPY ports/RGSX/ /app/RGSX/

# Copy entrypoint script
COPY docker/docker-entrypoint.sh /usr/local/bin/
RUN chmod +x /usr/local/bin/docker-entrypoint.sh

# Install Python dependencies
# pygame is imported in some modules even in headless mode, so we include it
RUN pip install --no-cache-dir requests pygame

# Set environment variables for Docker mode
# These tell RGSX to use /config for settings and /data for ROMs
ENV RGSX_HEADLESS=1 \
    RGSX_APP_DIR=/app \
    RGSX_CONFIG_DIR=/config \
    RGSX_DATA_DIR=/data

# Expose web interface port
EXPOSE 5000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:5000/ || exit 1

# Set working directory
WORKDIR /app/RGSX

# Entrypoint handles user permissions and directory setup
ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["python", "rgsx_web.py", "--host", "0.0.0.0", "--port", "5000"]