FROM python:3 as builder

# Signal installation
WORKDIR /root
# TODO Allow this to be a build variable
ENV SIGNAL_VERSION=0.7.1
RUN wget "https://github.com/AsamK/signal-cli/releases/download/v${SIGNAL_VERSION}/signal-cli-${SIGNAL_VERSION}.tar.gz"
RUN tar xf "signal-cli-${SIGNAL_VERSION}.tar.gz" -C /opt
RUN mv "/opt/signal-cli-${SIGNAL_VERSION}" /opt/signal-cli



# Provides :
# - Python version > 3.4.2
# - bash
# - glibc
FROM python:3

WORKDIR /usr/src/app

RUN apt-get update && \
    apt install -y cmake g++ make \
        default-jre-headless \
        && \
    rm -rf /var/lib/apt/lists/*

# signal-cli files
COPY --from=builder /opt/signal-cli /opt/signal-cli
ENV PATH=/opt/signal-cli/bin:$PATH

# TODO How to do it with one COPY ?
# Or it could be COPY . . with a proper .dockerignore
# Or build the context as a preliminary step
COPY nicobot nicobot/
COPY requirements-runtime.txt .

RUN pip install --no-cache-dir -r requirements-runtime.txt
# It could be packaged (RUN python setup.py sdist bdist_wheel) to possibly
# improve size and speed ; probably as a multistage build
# And update the version from git using setuptools-scm
# But it requires a bit of work
#RUN python setup.py sdist bdist_wheel

# This script allows packaging several bots in the same image
# (to be clean they could be in separate images but they're so close that it's a lot easier to package and does not waste space by duplicating images)
# Otherwise the ENTRYPOINT should simply be [ "python"]
# Made a a separate COPY because it's a docker-specific layer
# (other layers don't need to be re-built if this one changes)
COPY docker/docker-entrypoint.sh .
ENTRYPOINT [ "./docker-entrypoint.sh" ]