# Use Python 3.11 slim image for better performance and smaller size
FROM python:3.11-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV DEBIAN_FRONTEND=noninteractive

# Set work directory
WORKDIR /app

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        postgresql-client \
        gcc \
        python3-dev \
        libpq-dev \
        curl \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first to leverage Docker cache
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy project files
COPY . .

# Create logs directory
RUN mkdir -p logs

# Create non-root user for security
RUN adduser --disabled-password --gecos '' appuser && chown -R appuser:appuser /app
USER appuser

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health/ || exit 1

# Expose port
EXPOSE 8000

# Run gunicorn
CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--workers", "2", "--timeout", "120", "--access-logfile", "-", "--error-logfile", "-", "netcop_hub.wsgi:application"]