# syntax=docker/dockerfile:1

FROM python:3.12-slim

ENV PYTHONDONTWRITEBYTECODE=1 \
    PYTHONUNBUFFERED=1

WORKDIR /app

# System deps (kept minimal). Pillow may need some libs; for most cases this is fine on slim.
# If you hit Pillow build/runtime issues, consider adding: libjpeg62-turbo, zlib1g, etc.

COPY requirements.txt ./
RUN pip install --no-cache-dir -r requirements.txt \
    && pip install --no-cache-dir gunicorn

COPY . .

# Create runtime dirs (also mountable as volumes)
RUN mkdir -p instance app/static/uploads

EXPOSE 8000

# Default config (override at runtime)
ENV FLASK_ENV=production \
    GUNICORN_WORKERS=2 \
    GUNICORN_BIND=0.0.0.0:8000

# Run via WSGI entrypoint
CMD ["sh", "-c", "gunicorn -w ${GUNICORN_WORKERS} -b ${GUNICORN_BIND} wsgi:app"]