# ─────────────────────────────────────────────
# HuggingFace Daily Paper RSS — Dockerfile
# ─────────────────────────────────────────────
# Two modes:
#   1. Run-once (default, for cron):
#        docker run --rm -v ./feeds:/data hf-paper-rss
#   2. HTTP server (serve feeds):
#        docker run --rm -p 8080:8080 -v ./feeds:/data hf-paper-rss serve
# ─────────────────────────────────────────────

FROM python:3.11-slim AS base

WORKDIR /app

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

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

# Copy app code
COPY parser.py rss_generator.py run.py run.sh ./

# Create output directory
RUN mkdir -p /data && chmod 777 /data

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD python -c "import sys; sys.exit(0 if __import__('os').path.exists('/data/feed.xml') else 1)" \
    || true  # Allow healthcheck to be optional

ENTRYPOINT ["python", "run.py"]
CMD ["--output-dir", "/data"]


# ─── Serve mode ───
FROM base AS serve

COPY server.py .

EXPOSE 8080

ENTRYPOINT ["python", "server.py"]
CMD ["--dir", "/data", "--port", "8080"]