ARG ALPINE_VER="3.10"
FROM lsiobase/alpine:arm32v7-${ALPINE_VER} as fetch-stage

############## fetch stage ##############

# package versions
ARG MP3GAIN_VER="1.6.2"

# install fetch packages
RUN \
 apk add --no-cache \
	bash \
	curl \
	git \
	jq \
	unzip

# set shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# fetch source code
RUN \
 set -ex && \
 mkdir -p \
	/tmp/beets-src \
	/tmp/mp3gain-src && \
 if [ -z ${BEETS_VERSION+x} ] ; then \
 BEETS_RAW_COMMIT=$(curl -sX GET "https://api.github.com/repos/beetbox/beets/commits/master" \
	| jq -r .sha) && \
 BEETS_VERSION="${BEETS_RAW_COMMIT:0:7}"; \
 fi && \
 curl -o \
 /tmp/beets.tar.gz -L \
	"https://github.com/sampsyo/beets/archive/${BEETS_VERSION}.tar.gz" && \
 curl -o \
 /tmp/mp3gain.zip -L \
	"https://sourceforge.net/projects/mp3gain/files/mp3gain/${MP3GAIN_VER}/mp3gain-${MP3GAIN_VER//./_}-src.zip" && \
 tar xf \
 /tmp/beets.tar.gz -C \
	/tmp/beets-src --strip-components=1 && \
 unzip -q /tmp/mp3gain.zip -d /tmp/mp3gain-src && \
 git clone https://bitbucket.org/acoustid/chromaprint.git /tmp/chromaprint-src && \
 git clone https://github.com/sbarakat/beets-copyartifacts.git /tmp/copyartifacts-src

FROM lsiobase/alpine:arm32v7-${ALPINE_VER} as beets_build-stage

############## beets build stage ##############

# copy artifacts from fetch stage
COPY --from=fetch-stage /tmp/beets-src /tmp/beets-src
COPY --from=fetch-stage /tmp/copyartifacts-src /tmp/copyartifacts-src

# set workdir for beets install
WORKDIR /tmp/beets-src

# install build packages
RUN \
 apk add --no-cache \
	py3-setuptools \
	python3-dev

# build beets package
RUN \
 set -ex && \
 python3 setup.py build && \
 python3 setup.py install --prefix=/usr --root=/build/beets

# set workdir for copyartifacts install
WORKDIR /tmp/copyartifacts-src

# build copyartifacts package
RUN \
 set -ex && \
 python3 setup.py install --prefix=/usr --root=/build/beets

FROM alpine:${ALPINE_VER} as mp3gain_build-stage

############## mp3gain build stage ##############

# copy artifacts from fetch stage
COPY --from=fetch-stage /tmp/mp3gain-src /tmp/mp3gain-src

# set workdir
WORKDIR /tmp/mp3gain-src

# install build packages
RUN \
 apk add --no-cache \
	g++ \
	make \
	mpg123-dev

# build package
RUN \
 set -ex && \
 mkdir -p \
	/build/mp3gain/usr/bin && \
 sed -i "s#/usr/local/bin#/build/mp3gain/usr/bin#g" Makefile && \
 make && \
 make install

FROM lsiobase/alpine:arm32v7-${ALPINE_VER} as chromaprint_build-stage

############## chromaprint build stage ##############

# copy artifacts from fetch stage
COPY --from=fetch-stage /tmp/chromaprint-src /tmp/chromaprint-src

# set workdir
WORKDIR /tmp/chromaprint-src

# install build packages
RUN \
 apk add --no-cache \
	cmake \
	ffmpeg-dev \
	fftw-dev \
	g++ \
	make

# build package
RUN \
 set -ex && \
 cmake \
	-DBUILD_TOOLS=ON \
	-DCMAKE_BUILD_TYPE=Release \
	-DCMAKE_INSTALL_PREFIX:PATH=/usr && \
 make && \
 make DESTDIR=/build/chromaprint install

FROM lsiobase/alpine:arm32v7-${ALPINE_VER} as pip-stage

############## pip packages install stage ##############

# install build packages
RUN \
 apk add --no-cache \
	g++ \
	make \
	py3-pip \
	python3-dev

# install pip packages
RUN \
 set -ex && \
 pip3 install --no-cache-dir -U \
	confuse \
	discogs-client \
	mediafile \
	mutagen \
	pyacoustid \
	pyyaml \
	unidecode

FROM lsiobase/alpine:arm32v7-${ALPINE_VER} as strip-stage

############## strip packages stage ##############

# copy artifacts build stages
COPY --from=beets_build-stage /build/beets/usr/ /build/all//usr/
COPY --from=chromaprint_build-stage /build/chromaprint/usr/ /build/all//usr/
COPY --from=mp3gain_build-stage /build/mp3gain/usr/ /build/all//usr/
COPY --from=pip-stage /usr/lib/python3.7/site-packages /build/all/usr/lib/python3.7/site-packages

# install strip packages
RUN \
 apk add --no-cache \
	bash \
	binutils

# set shell
SHELL ["/bin/bash", "-o", "pipefail", "-c"]

# strip packages
RUN \
	set -ex && \
 for dirs in usr/bin usr/lib usr/lib/python3.7/site-packages; \
	do \
		find /build/all/"${dirs}" -type f | \
		while read -r files ; do strip "${files}" || true \
		; done \
	; done

# remove unneeded files
RUN \	
	set -ex && \
 for cleanfiles in *.la *.pyc *.pyo; \
	do \
		find /build/all/ -iname "${cleanfiles}" -exec rm -vf '{}' + \
	; done

FROM lsiobase/alpine:arm32v7-${ALPINE_VER}

############## runtime stage ##############

# set version label
ARG BUILD_DATE
ARG VERSION
ARG BEETS_VERSION
LABEL build_version="Linuxserver.io version:- ${VERSION} Build-date:- ${BUILD_DATE}"
LABEL maintainer="sparklyballs"

# copy artifacts strip stage
COPY --from=strip-stage /build/all/usr/  /usr/

# install runtime packages
RUN \
 apk add --no-cache \
	curl \
	ffmpeg \
	fftw \
	mpg123 \
	nano \
	jq \
	lame \
	nano \
	py3-beautifulsoup4 \
	py3-flask \
	py3-jellyfish \
	py3-munkres \
	py3-musicbrainzngs \
	py3-pillow \
	py3-pip \
	py3-pylast \
	py3-requests \
	py3-setuptools \
	py3-six \
	py-enum34 \
	python3 \
	sqlite-libs \
	tar \
	wget

# environment settings
ENV BEETSDIR="/config" \
EDITOR="nano" \
HOME="/config"

# copy local files
COPY root/ /

# ports and volumes
EXPOSE 8337
VOLUME /config /downloads /music