FROM ghcr.io/astral-sh/uv:bookworm-slim AS uv

# Build stage
FROM python:3.12-slim AS builder

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV PYTHONPATH=/app
ENV UV_CACHE_DIR=/tmp/.cache/uv
ENV UV_VENV_DIRECTORY=/app/.venv

# Set work directory
WORKDIR /app

# Install build dependencies in one layer
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    gcc \
    nodejs \
    npm \
    gettext \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

# Copy uv binary
COPY --from=uv /usr/local/bin/uv /usr/local/bin/uv

# Copy dependency files first for better caching
COPY pyproject.toml uv.lock ./

# Install Python dependencies
RUN uv sync --no-dev --frozen --no-install-project

# Copy only necessary project files
COPY manage.py ./
COPY core/ ./core/
COPY links/ ./links/
COPY new_theme/ ./new_theme/
COPY templates/ ./templates/
COPY locale/ ./locale/
COPY tailwind.config.js ./

# Build static assets and translations
RUN uv run manage.py tailwind install \
    && uv run manage.py tailwind build \
    && uv run manage.py collectstatic --noinput \
    && uv run manage.py compilemessages --locale=zh_Hans

# Clean up build cache and unnecessary files
RUN rm -rf /tmp/.cache/uv ~/.npm ~/.cache \
    && find /app -name "*.pyc" -delete \
    && find /app -name "__pycache__" -type d -exec rm -rf {} + || true

# Production stage
FROM python:3.12-slim

# Set environment variables
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1
ENV PYTHONPATH=/app
ENV VIRTUAL_ENV=/app/.venv
ENV PATH="/app/.venv/bin:$PATH"

# Set work directory
WORKDIR /app

# Install only runtime dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    curl \
    chromium \
    chromium-driver \
    fonts-arphic-ukai \
    && rm -rf /var/lib/apt/lists/* \
    && apt-get clean

# Create non-root user and directories
RUN useradd -m -u 1000 appuser \
    && mkdir -p /app/data/media/screenshots \
    && chown -R appuser:appuser /app

# Copy only the virtual environment and built assets
COPY --from=builder --chown=appuser:appuser /app/.venv /app/.venv
COPY --from=builder --chown=appuser:appuser /app/staticfiles /app/staticfiles
COPY --from=builder --chown=appuser:appuser /app/locale /app/locale

# Copy application code
COPY --chown=appuser:appuser manage.py ./
COPY --chown=appuser:appuser core/ ./core/
COPY --chown=appuser:appuser links/ ./links/
COPY --chown=appuser:appuser new_theme/ ./new_theme/
COPY --chown=appuser:appuser templates/ ./templates/

# Clean up any Python cache files
RUN find /app -name "*.pyc" -delete \
    && find /app -name "__pycache__" -type d -exec rm -rf {} + || true

# Switch to non-root user
USER appuser

# Expose port 8000
EXPOSE 8000

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

# Run the application
CMD ["gunicorn", "--chdir", "/app", "core.wsgi:application", "--bind", "0.0.0.0:8000"]