# Default image for a pip-based Python web app (Flask via gunicorn).
# ADJUST the CMD at the bottom to match the app's entry point.
FROM python:3.12-slim

WORKDIR /app
ENV PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1

# sqlite3 CLI is used by the backup snapshot; curl for healthchecks.
RUN apt-get update \
    && apt-get install -y --no-install-recommends sqlite3 curl \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .
RUN pip install -r requirements.txt && pip install gunicorn requests

COPY . .

# Persistent data lives on a mounted volume, not in the image.
RUN mkdir -p /data/uploads/suggestions

COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh

EXPOSE 8000
ENTRYPOINT ["/entrypoint.sh"]

# Single worker + threads: the app stores state in JSON/SQLite files on the
# volume, so multiple processes would race. Threads handle light concurrency.
CMD ["gunicorn", "--bind", "0.0.0.0:8000", "--workers", "1", "--threads", "4", "app:app"]