###########################################################
# Builder image: we compile the code here (static build)
FROM alpine:3.19.0 AS build

RUN ["apk", "--no-cache", "add",\
 "clang",\
 "cmake",\
 "libconfig-dev",\
 "libconfig-static",\
 "libsodium-dev",\
 "libsodium-static",\
 "linux-headers",\
 "musl-dev",\
 "ninja",\
 "python3"]

WORKDIR /src/c-toxcore

# Very selectively add files to the image, because we may have random stuff
# lying around. In particular, we don't need to rebuild the docker image when
# toxav changes or the Dockerfile changes down from the build.
COPY cmake cmake
COPY other/bootstrap_daemon/bash-completion other/bootstrap_daemon/bash-completion
COPY other/bootstrap_daemon/src other/bootstrap_daemon/src
COPY other/bootstrap_node_packets.[ch] other/
COPY other/DHT_bootstrap.c other/
COPY other/pkgconfig other/pkgconfig
COPY other/rpm other/rpm
COPY testing/misc_tools.[ch] testing/
COPY toxcore toxcore
COPY toxencryptsave toxencryptsave
COPY third_party third_party
COPY CMakeLists.txt so.version ./
COPY other/bootstrap_daemon/CMakeLists.txt other/bootstrap_daemon/CMakeLists.txt
COPY testing/CMakeLists.txt testing/CMakeLists.txt

RUN CC=clang cmake -B_build -H. \
      -GNinja \
      -DCMAKE_C_FLAGS="-DTCP_SERVER_USE_EPOLL -fsanitize=alignment,return,returns-nonnull-attribute,vla-bound,unreachable,float-cast-overflow,null -fsanitize-trap=all -fstack-protector-all" \
      -DCMAKE_UNITY_BUILD=ON \
      -DCMAKE_BUILD_TYPE=Release \
      -DFULLY_STATIC=ON \
      -DMIN_LOGGER_LEVEL=DEBUG \
      -DBUILD_TOXAV=OFF \
      -DBOOTSTRAP_DAEMON=ON && \
    cmake --build _build --target install

# Verify checksum from dev-built binary, so we can be sure Docker Hub doesn't
# mess with your binaries.
COPY other/bootstrap_daemon/docker/tox-bootstrapd.sha256 other/bootstrap_daemon/docker/
ARG CHECK=sha256sum
RUN SHA256="$("$CHECK" /usr/local/bin/tox-bootstrapd)" && \
    ("$CHECK" -c other/bootstrap_daemon/docker/tox-bootstrapd.sha256 || \
    (echo "::error file=other/bootstrap_daemon/docker/tox-bootstrapd.sha256,line=1::$SHA256" && \
     false))

# Remove all the example bootstrap nodes from the config file.
COPY other/bootstrap_daemon/tox-bootstrapd.conf other/bootstrap_daemon/
# hadolint ignore=SC2086,SC2154
RUN ["sed", "-i", "/^bootstrap_nodes = /,$d", "other/bootstrap_daemon/tox-bootstrapd.conf"]

# Add bootstrap nodes from https://nodes.tox.chat/.
COPY other/bootstrap_daemon/docker/get-nodes.py other/bootstrap_daemon/docker/
RUN ["other/bootstrap_daemon/docker/get-nodes.py", "other/bootstrap_daemon/tox-bootstrapd.conf"]

###########################################################
# Final image build: this is what runs the bootstrap node
FROM debian:bookworm-slim

COPY --from=build /usr/local/bin/tox-bootstrapd /usr/local/bin/
COPY --from=build /src/c-toxcore/other/bootstrap_daemon/tox-bootstrapd.conf /etc/tox-bootstrapd.conf
RUN useradd --home-dir /var/lib/tox-bootstrapd --create-home \
      --system --shell /sbin/nologin \
      --comment "Account to run the Tox DHT bootstrap daemon" \
      --user-group tox-bootstrapd && \
    chmod 644 /etc/tox-bootstrapd.conf && \
    chmod 700 /var/lib/tox-bootstrapd

WORKDIR /var/lib/tox-bootstrapd

USER tox-bootstrapd

# Smoke-test: make sure the binary actually starts up.
# hadolint ignore=DL4006
RUN script /usr/local/bin/tox-bootstrapd --help | grep "Usage"

ENTRYPOINT ["/usr/local/bin/tox-bootstrapd",\
 "--config", "/etc/tox-bootstrapd.conf",\
 "--log-backend", "stdout",\
 "--foreground"\
]

EXPOSE 443/tcp 3389/tcp 33445/tcp 33445/udp