# This dockerfile is meant to compile a c-lightning x64 image
# It is using multi stage build:
# * downloader: Download litecoin/bitcoin and qemu binaries needed for c-lightning
# * builder: Compile c-lightning dependencies, then c-lightning itself with static linking
# * final: Copy the binaries required at runtime
# The resulting image uploaded to dockerhub will only contain what is needed for runtime.
# From the root of the repository, run "docker build -t yourimage:yourtag ."
FROM debian:stretch-slim as downloader

RUN set -ex \
	&& apt-get update \
	&& apt-get install -qq --no-install-recommends ca-certificates dirmngr wget

WORKDIR /opt

RUN wget -qO /opt/tini "https://github.com/krallin/tini/releases/download/v0.18.0/tini" \
    && echo "12d20136605531b09a2c2dac02ccee85e1b874eb322ef6baf7561cd93f93c855 /opt/tini" | sha256sum -c - \
    && chmod +x /opt/tini

ARG BITCOIN_VERSION=0.17.0
ENV BITCOIN_TARBALL bitcoin-${BITCOIN_VERSION}-x86_64-linux-gnu.tar.gz
ENV BITCOIN_URL https://bitcoincore.org/bin/bitcoin-core-$BITCOIN_VERSION/$BITCOIN_TARBALL
ENV BITCOIN_ASC_URL https://bitcoincore.org/bin/bitcoin-core-$BITCOIN_VERSION/SHA256SUMS.asc

RUN mkdir /opt/bitcoin && cd /opt/bitcoin \
    && wget -qO $BITCOIN_TARBALL "$BITCOIN_URL" \
    && wget -qO bitcoin.asc "$BITCOIN_ASC_URL" \
    && grep $BITCOIN_TARBALL bitcoin.asc | tee SHA256SUMS.asc \
    && sha256sum -c SHA256SUMS.asc \
    && BD=bitcoin-$BITCOIN_VERSION/bin \
    && tar -xzvf $BITCOIN_TARBALL $BD/bitcoin-cli --strip-components=1 \
    && rm $BITCOIN_TARBALL

ENV LITECOIN_VERSION 0.16.3
ENV LITECOIN_PGP_KEY FE3348877809386C
ENV LITECOIN_URL https://download.litecoin.org/litecoin-${LITECOIN_VERSION}/linux/litecoin-${LITECOIN_VERSION}-x86_64-linux-gnu.tar.gz
ENV LITECOIN_ASC_URL https://download.litecoin.org/litecoin-${LITECOIN_VERSION}/linux/litecoin-${LITECOIN_VERSION}-linux-signatures.asc
ENV LITECOIN_SHA256 686d99d1746528648c2c54a1363d046436fd172beadaceea80bdc93043805994

# install litecoin binaries
RUN mkdir /opt/litecoin && cd /opt/litecoin \
    && wget -qO litecoin.tar.gz "$LITECOIN_URL" \
    && echo "$LITECOIN_SHA256  litecoin.tar.gz" | sha256sum -c - \
    && BD=litecoin-$LITECOIN_VERSION/bin \
    && tar -xzvf litecoin.tar.gz $BD/litecoin-cli --strip-components=1 --exclude=*-qt \
    && rm litecoin.tar.gz

FROM debian:stretch-slim as builder

ENV LIGHTNINGD_VERSION=master
RUN apt-get update && apt-get install -y --no-install-recommends \
    ca-certificates \
    autoconf \
    automake \
    build-essential \
    git \
    libtool \
    python \
    python3 \
    python3-mako \
    wget \
    gnupg \
    dirmngr \
    git \
    gettext \
    unzip \
    tclsh \
    libsqlite3-dev \
    libgmp-dev \
    zlib1g-dev

WORKDIR /opt/lightningd
COPY . /tmp/lightning
RUN git clone --recursive /tmp/lightning . && \
    git checkout $(git --work-tree=/tmp/lightning --git-dir=/tmp/lightning/.git rev-parse HEAD)

ARG DEVELOPER=0
RUN ./configure --prefix=/tmp/lightning_install --enable-static && make -j3 DEVELOPER=${DEVELOPER} && make install

FROM debian:stretch-slim as final
COPY --from=downloader /opt/tini /usr/bin/tini
RUN apt-get update && apt-get install -y --no-install-recommends \
    socat \
    inotify-tools \
    libgmp10 \
    libsqlite3-0 \
    zlib1g \
    && rm -rf /var/lib/apt/lists/*

ENV LIGHTNINGD_DATA=/root/.lightning
ENV LIGHTNINGD_RPC_PORT=9835
ENV LIGHTNINGD_PORT=9735

RUN mkdir $LIGHTNINGD_DATA && \
    touch $LIGHTNINGD_DATA/config
VOLUME [ "/root/.lightning" ]
COPY --from=builder /tmp/lightning_install/ /usr/local/
COPY --from=downloader /opt/bitcoin/bin /usr/bin
COPY --from=downloader /opt/litecoin/bin /usr/bin
COPY tools/docker-entrypoint.sh entrypoint.sh

EXPOSE 9735 9835
ENTRYPOINT  [ "/usr/bin/tini", "-g", "--", "./entrypoint.sh" ]