FROM python:3.9-slim

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

# Set work directory
WORKDIR /app

# Install system dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends \
        build-essential \
        curl \
        libssl-dev \
        libffi-dev \
    && rm -rf /var/lib/apt/lists/*

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

# Copy application code
COPY src/ ./src/

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

# Add src directory to PYTHONPATH
ENV PYTHONPATH="/app/src:$PYTHONPATH"

# Expose port
EXPOSE 8008

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8008/health || exit 1

# Start the application from src directory
WORKDIR /app/src
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "8008"]