# Build stage
FROM python:3.12-slim as builder

WORKDIR /app

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

# Install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir --user -r requirements.txt

# Application stage
FROM python:3.12-slim

LABEL org.label-schema.name="mtgonline-backend" \
      org.label-schema.description="MTG Online Backend API" \
      org.label-schema.version="0.2.0" \
      org.label-schema.build-date="${BUILD_DATE}" \
      org.label-schema.vcs-url="https://gitea.wallomation.com/wall-o/mtgonline"

WORKDIR /app

# Install runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    libpq5 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy installed packages from builder
COPY --from=builder /root/.local /app/.local

ENV PATH=/app/.local/bin:$PATH

# Create non-root user
RUN groupadd -r appuser && useradd -r -g appuser -d /app -s /sbin/nologin appuser

# Create necessary directories
RUN mkdir -p /app/data /app/uploads /app/logs /app/scripts /app/alembic/versions && \
    chown -R appuser:appuser /app

# Copy application code
COPY --chown=appuser:appuser app/ ./app/

# Copy Alembic configuration
COPY --chown=appuser:appuser alembic.ini ./
COPY --chown=appuser:appuser alembic/ ./alembic/

# Copy scripts (including entrypoint)
COPY --chown=appuser:appuser scripts/ ./scripts/
RUN chmod +x /app/scripts/*.py /app/scripts/docker-entrypoint.sh

# Copy environment example
COPY --chown=appuser:appuser .env.example ./.env.example
COPY --chown=appuser:appuser pyproject.toml ./

# Python environment variables
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONPATH=/app

# Logging configuration
ENV MTG_LOG_LEVEL=INFO
ENV MTG_LOG_FORMAT=text

# Create logging directory with proper permissions
RUN mkdir -p /app/logs && chown appuser:appuser /app/logs

# Health check
HEALTHCHECK --interval=30s --timeout=5s --start-period=40s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

USER appuser

EXPOSE 8000

# Use entrypoint script for dependency checking and migrations
ENTRYPOINT ["/app/scripts/docker-entrypoint.sh"]
CMD ["python", "-m", "uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000", "--forwarded-allow-ips", "*"]