FROM debian:buster as build

ARG nethack_version=3.6.7

RUN apt-get update -y

RUN apt-get install -y gcc make flex bison build-essential git libncurses5-dev wget autotools-dev autoconf sqlite3 libsqlite3-dev

# Build dgamelaunch
WORKDIR /

RUN git clone https://github.com/paxed/dgamelaunch.git

WORKDIR dgamelaunch

RUN ./autogen.sh --enable-sqlite --enable-shmem --with-config-file=/opt/nethack/nethack.jerryaldrichiii.com/etc/dgamelaunch.conf

RUN make

COPY dgl-create-chroot.sh dgl-create-chroot.sh
RUN sh dgl-create-chroot.sh

WORKDIR /opt/nethack/nethack.jerryaldrichiii.com/

# Copy libs needed at runtime
RUN cp /lib/x86_64-linux-gnu/libncurses.so.6 lib/x86_64-linux-gnu/
RUN cp /lib/x86_64-linux-gnu/libnss_files.so.2 lib/x86_64-linux-gnu/libnss_files.so.2

COPY dgamelaunch.conf etc/dgamelaunch.conf

# Build Nethack
WORKDIR /
RUN wget https://github.com/NetHack/NetHack/archive/NetHack-${nethack_version}_Released.tar.gz

RUN tar xvzf NetHack*.tar.gz

WORKDIR NetHack-NetHack-${nethack_version}_Released

COPY ./hints.sh hints.sh

RUN sh sys/unix/setup.sh hints.sh

RUN make && make install

# TODO: Add a custom sysconf? https://nethackwiki.com/wiki/Sysconf
RUN cp -R /root/nethack/chroot/nethack/* /opt/nethack/nethack.jerryaldrichiii.com/nethack
# TODO: No nethack user exists here, use chgrp
RUN chown games:games /opt/nethack/nethack.jerryaldrichiii.com/nethack/sysconf

# Could probably use alpine..but I'm too lazy to trackdown libc/musl errors
FROM debian:stable-slim

LABEL maintainer "jerryaldrichiii@gmail.com"

RUN apt-get update && apt-get install -y openssh-server && apt-get clean

COPY --from=build /opt/nethack/nethack.jerryaldrichiii.com/ /opt/nethack/nethack.jerryaldrichiii.com
RUN cp -R /opt/nethack/nethack.jerryaldrichiii.com/dgldir /opt/nethack/nethack.jerryaldrichiii.com/dgldir.orig
RUN cp -R /opt/nethack/nethack.jerryaldrichiii.com/nethack/var /opt/nethack/nethack.jerryaldrichiii.com/nethack_var.orig
RUN cp /opt/nethack/nethack.jerryaldrichiii.com/usr/lib/x86_64-linux-gnu/* /usr/lib/x86_64-linux-gnu/
COPY dgl_menu_main_user.txt /opt/nethack/nethack.jerryaldrichiii.com/

RUN useradd --no-create-home --gid 60 --shell /opt/nethack/nethack.jerryaldrichiii.com/dgamelaunch nethack
RUN passwd -d nethack

RUN chown -R nethack:games /opt/nethack/nethack.jerryaldrichiii.com/nethack

# If you figure out how to make this run without suid or root...let me know
RUN chmod 4755 /opt/nethack/nethack.jerryaldrichiii.com/dgamelaunch

COPY entrypoint.sh /entrypoint.sh
RUN chmod +x /entrypoint.sh

# Configure SSHD
RUN mkdir -p /srv/sshd/host_keys
COPY sshd_config /srv/sshd/sshd_config
RUN chown -R nethack /srv/sshd
RUN cp /etc/passwd /opt/nethack/nethack.jerryaldrichiii.com/etc
RUN chown nethack /etc/shadow

EXPOSE 2323

VOLUME ["/opt/nethack/nethack.jerryaldrichiii.com/dgldir"]
VOLUME ["/opt/nethack/nethack.jerryaldrichiii.com/nethack/var"]
VOLUME ["/srv/sshd/host_keys"]

USER nethack

ENTRYPOINT ["/entrypoint.sh"]