FROM python:3.12-slim AS builder

WORKDIR /app

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

# Copy dependency specifications and install wheels
COPY requirements.txt ./
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt

# Final production image stage
FROM python:3.12-slim

ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    PYTHONPATH=/app \
    PORT=8080

WORKDIR /app

# Create non-root application user for container security
RUN groupadd -g 10001 appgroup && \
    useradd -u 10001 -g appgroup -s /bin/sh -m appuser

# Copy installed dependencies from builder
COPY --from=builder /install /usr/local

# Copy application source, skills, and configuration
COPY app/ ./app/
COPY eval/ ./eval/
COPY docs/ ./docs/
COPY deliverables/ ./deliverables/
COPY terraform/ ./terraform/
COPY workflow.yaml ./
COPY requirements.yaml ./

RUN chown -R appuser:appgroup /app

USER appuser

EXPOSE 8080

HEALTHCHECK --interval=30s --timeout=5s --start-period=5s --retries=3 \
  CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8080/health')" || exit 1

CMD ["python", "-m", "app.agent", "--host", "0.0.0.0", "--port", "8080"]