# `python-base` sets up all our shared environment variables
FROM python:3.12-bookworm as python-base

ENV PYTHONUNBUFFERED=1 \
    # prevents python creating .pyc files
    PYTHONDONTWRITEBYTECODE=1 \
    \
    # pip
    PIP_NO_CACHE_DIR=off \
    PIP_DISABLE_PIP_VERSION_CHECK=on \
    PIP_DEFAULT_TIMEOUT=100 \
    \
    # poetry
    # https://python-poetry.org/docs/configuration/#using-environment-variables
    POETRY_VERSION=1.8.3 \
    # make poetry install to this location
    POETRY_HOME="/opt/volume/poetry" \
    # make poetry create the virtual environment in the project's root
    # it gets named `.venv`
    POETRY_VIRTUALENVS_IN_PROJECT=true \
    # do not ask any interactive question
    POETRY_NO_INTERACTION=1 \
    \
    # paths
    # this is where our requirements + virtual environment will live
    PYSETUP_PATH="/opt/volume/pysetup" \
    VENV_PATH="/opt/volume/pysetup/.venv"


# prepend poetry and venv to path
ENV PATH="$POETRY_HOME/bin:$VENV_PATH/bin:$PATH"

RUN apt-get update && apt-get install -y ffmpeg

# `builder-base` stage is used to build deps + create our virtual environment
FROM python-base as builder-base
RUN apt-get update \
    && apt-get install -y \
        curl \
        build-essential

# install poetry - respects $POETRY_VERSION & $POETRY_HOME
RUN curl -sSL https://install.python-poetry.org | python3 -

# copy project requirement files here to ensure they will be cached.
WORKDIR $PYSETUP_PATH

RUN poetry self add poetry-plugin-export

COPY poetry.lock pyproject.toml ./

# will become mountpoint of our code
WORKDIR /kernel

# Expose the necessary port
EXPOSE 8000

# Command to run the application
CMD poetry export -f requirements.txt --without-hashes | poetry run pip3 install -r /dev/stdin && \
 poetry run uvicorn spectral.main:app --host 0.0.0.0 --proxy-headers --reload --timeout-graceful-shutdown 1

# `production` image used for runtime
# FROM python-base as production
# ENV FASTAPI_ENV=production
# COPY --from=builder-base $PYSETUP_PATH $PYSETUP_PATH
# COPY ./app /app/
# WORKDIR /app
# CMD ["gunicorn", "-k", "uvicorn.workers.UvicornWorker", "main:app"]
