FROM python:3.13-slim

WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    curl \
    npm \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install Python dependencies
COPY api_requirements.txt .
RUN pip install --no-cache-dir -r api_requirements.txt

# Copy application code
COPY api_server.py .
COPY index.html .
COPY chat-widget.js .
COPY knowledge/ ./knowledge/

# Create non-root user
RUN useradd -m -u 1000 appuser && chown -R appuser:appuser /app
USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:7860/health || exit 1

# Expose port
EXPOSE 7860

# Run the application
CMD ["uvicorn", "api_server:app", "--host", "0.0.0.0", "--port", "7860"]