# Multi-stage build for Demo Session Service
FROM python:3.11-slim as builder

WORKDIR /app

# Install build dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    gcc \
    g++ \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements and install
COPY services/demo_session/requirements.txt .
RUN pip install --no-cache-dir --user -r requirements.txt

# Final stage
FROM python:3.11-slim

WORKDIR /app

# Copy Python dependencies from builder
COPY --from=builder /root/.local /root/.local

# Copy shared libraries
COPY shared/ /app/shared/

# Copy service code
COPY services/demo_session/ /app/

# Copy scripts
COPY scripts/ /app/scripts/

# Make sure scripts are in path
ENV PATH=/root/.local/bin:$PATH
ENV PYTHONPATH=/app:$PYTHONPATH

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
    CMD python -c "import httpx; httpx.get('http://localhost:8000/health')"

# Run the application
CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]