# Multi-stage build for mosaic-coordinator
FROM python:3.11-slim AS builder

WORKDIR /app

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

# Copy dependency files
COPY pyproject.toml .

# Create virtual environment and install dependencies
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir hatchling && \
    pip install --no-cache-dir \
    fastapi>=0.109.0 \
    uvicorn[standard]>=0.27.0 \
    pydantic>=2.5.0 \
    pydantic-settings>=2.1.0 \
    python-dotenv>=1.0.0

# Production stage
FROM python:3.11-slim

WORKDIR /app

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Copy application code
COPY src/ ./src/

# Create non-root user
RUN useradd -m -u 1000 coordinator && \
    chown -R coordinator:coordinator /app

USER coordinator

# Environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    HOST=0.0.0.0 \
    PORT=8000

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8000/health')"

# Expose port
EXPOSE 8000

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