FROM python:3.12-slim AS base
RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg fonts-noto-cjk && rm -rf /var/lib/apt/lists/*

FROM base AS dependencies
ENV PATH="/opt/venv/bin:$PATH"
WORKDIR /app
RUN python -m venv /opt/venv
COPY apps/python/pyproject.toml ./
# Read the pinned requirements from the package metadata before copying source.
RUN python -c 'import subprocess, tomllib; p = tomllib.load(open("pyproject.toml", "rb")); subprocess.check_call(["python", "-m", "pip", "install", "--no-cache-dir", *p["build-system"]["requires"], *p["project"]["dependencies"]])'

FROM dependencies AS build
COPY apps/python/ .
RUN pip install --no-cache-dir --no-deps --no-build-isolation . && python -m unittest discover -s tests -v

FROM base AS runtime
WORKDIR /app
ENV PATH="/opt/venv/bin:$PATH"
COPY --from=build /opt/venv /opt/venv
RUN useradd --create-home exporter
USER exporter
ENTRYPOINT ["prompt-export"]