# vim: set fenc=utf-8 ts=2 sw=2 sts=2 et ft=Dockerfile :
FROM debian:buster-slim

LABEL maintainer="Andrius Kairiukstis <k@andrius.mobi>"

ARG SSH_USER="${SSH_USER:-blink}"
ARG SSH_PASSWORD="${SSH_PASSWORD:-blink}"

ENV LANG en_US.UTF-8
ENV LANGUAGE en_US:en
ENV LC_ALL en_US.UTF-8

SHELL ["/bin/bash", "-c"]

RUN set -ueox pipefail \
&&  DEBIAN_FRONTEND=noninteractive \
&&  apt-get -yqq update \
&&  apt-get -yqq --no-install-recommends --no-install-suggests install \
      build-essential \
      ca-certificates \
      curl \
      git \
      locales \
      openssh-server \
      openssl \
      psmisc \
&&  sed -i '/en_US.UTF-8/s/^# //g' /etc/locale.gen \
&&  locale-gen \
&&  adduser --quiet --gecos '' --disabled-password --add_extra_groups "${SSH_USER}" \
&&  echo -e "${SSH_PASSWORD}\n${SSH_PASSWORD}" | passwd "${SSH_USER}" \
&&  git clone --depth 1 https://github.com/Homebrew/brew.git "/home/${SSH_USER}/.linuxbrew" \
&&  cd "/home/${SSH_USER}/.linuxbrew" \
&&  git config --local --replace-all homebrew.private true \
&&  echo "export PATH=\"/home/${SSH_USER}/.linuxbrew/bin:$PATH\"" > "/home/${SSH_USER}/.profile" \
&&  chown -R "${SSH_USER}:${SSH_USER}" "/home/${SSH_USER}" \
&&  su - "${SSH_USER}" bash -c 'brew >/dev/null 2>&1; brew install --quiet mosh neovim tmux && brew cleanup --prune all >/dev/null 2>&1' \
&&  ln -s "/home/${SSH_USER}/.linuxbrew/bin/mosh-server" /usr/bin/mosh-server \
&&  ln -s "/home/${SSH_USER}/.linuxbrew/bin/nvim" /usr/bin/nvim \
&&  ln -s "/home/${SSH_USER}/.linuxbrew/bin/tmux" /usr/bin/tmux \
&&  apt-get -yqq clean all \
&&  rm -rf /var/lib/apt/lists/* \
           "/home/${SSH_USER}/.linuxbrew/Library/Taps/homebrew/homebrew-core" \
           /tmp/* \
           /var/tmp/*

COPY . "/home/${SSH_USER}/.dotfiles"/
RUN chown -R "${SSH_USER}:${SSH_USER}" "/home/${SSH_USER}/.dotfiles"

USER "${SSH_USER}"

RUN ln -s "/home/${SSH_USER}/.dotfiles/tmux/tmux.conf" "/home/${SSH_USER}/.tmux.conf" \
&&  mkdir -p "/home/${SSH_USER}/.config" \
&&  ln -s "/home/${SSH_USER}/.dotfiles/nvim" "/home/${SSH_USER}/.config/nvim" \
&&  ln -s "/home/${SSH_USER}/.dotfiles/nvim/vimrc" "/home/${SSH_USER}/.vimrc" \
&&  git clone --depth 1 https://github.com/Shougo/dein.vim "/home/${SSH_USER}/.cache/vim/dein/repos/github.com/Shougo/dein.vim" \
&&  nvim -V1 -es -i NONE -N --noplugin -u "/home/${SSH_USER}/.config/nvim/config/vimrc" \
      -c "try | call dein#clear_state() | call dein#update() | finally | messages | qall! | endtry"

USER root

EXPOSE 22/tcp
EXPOSE 22022/udp

RUN mkdir -p /run/sshd
CMD ["/usr/sbin/sshd", "-D", "-e", "-f", "/etc/ssh/sshd_config"]