FROM python:3.9-slim

# Install basic dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    && rm -rf /var/lib/apt/lists/*

# Configure environment
ENV PYTHONUNBUFFERED=1

# Copy requirements first for better caching
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy all application files
COPY . .

# Create necessary directories
RUN mkdir -p logs state

# Make supervisor executable
RUN chmod +x supervisor.py

# Health check - ensure web UI is responding
HEALTHCHECK --interval=60s --timeout=30s --start-period=120s --retries=3 \
  CMD python3 -c "import socket; s=socket.socket(); s.settimeout(2); s.connect(('localhost', 8000)); s.close()" || exit 1

# Start the application
CMD ["python3", "app.py"]