# Exchange Data Manager - Production Docker Image
# Multi-stage build for optimal image size

# Build stage
FROM python:3.11-slim AS builder

WORKDIR /app

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

# Create virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Copy and install dependencies
COPY pyproject.toml .
COPY src/ src/

RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir .


# Production stage
FROM python:3.11-slim AS production

WORKDIR /app

# Create non-root user
RUN useradd --create-home --shell /bin/bash edm && \
    mkdir -p /app/data && \
    chown -R edm:edm /app

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

# Copy application code
COPY --chown=edm:edm src/ src/
COPY --chown=edm:edm pyproject.toml .

# Set environment variables
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    EDM_HOST=0.0.0.0 \
    EDM_REST_PORT=8080 \
    EDM_WS_PORT=8765 \
    EDM_DB_PATH=/app/data/candles.db

# Create data directory for SQLite
VOLUME /app/data

# Expose ports
EXPOSE 8080 8765

# Switch to non-root user
USER edm

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:8080/health')" || exit 1

# Run the application
CMD ["uvicorn", "exchange_data_manager.api.rest:app", "--host", "0.0.0.0", "--port", "8080"]