FROM debian:testing-slim as base

ENV DOTNET_CLI_TELEMETRY_OPTOUT 1

RUN apt-get update \
    && apt-get -y install \
        gnupg2 \
        wget \
        git \
    && wget -qO- https://packages.microsoft.com/keys/microsoft.asc | apt-key add - \
    && wget -qO /etc/apt/sources.list.d/microsoft.list https://packages.microsoft.com/config/debian/10/prod.list \
    && apt-get -y purge \
        gnupg2 \
        wget \
    && apt-get -y autoremove --purge \
    && rm -rf /var/lib/apt/lists/*

FROM base as builder

RUN apt-get update \
    && apt-get -y install dotnet-sdk-3.0

ARG CACHEBUST=1
ARG CONFIGURATION=Release

RUN git clone --depth=1 https://github.com/ppy/osu \
    && cd osu \
    && dotnet build -c ${CONFIGURATION} osu.Desktop \
    && dotnet publish -c ${CONFIGURATION} -r linux-x64 -o /opt/osu/ osu.Desktop

FROM base

RUN apt-get update \
    && apt-get -y install --no-install-recommends \
        dotnet-runtime-3.0 \
        ffmpeg \
        libgl1 \
        pulseaudio \
    && rm -rf /var/lib/apt/lists/* \
    && find /usr/lib/x86_64-linux-gnu/ -type l -name 'libav*.so*' -exec sh -c 'cp {} $(echo {}|sed 's/\.[^\.]*$//')' \; \
    && find /usr/lib/x86_64-linux-gnu/ -type l -name 'libswscale.so*' -exec sh -c 'cp {} $(echo {}|sed 's/\.[^\.]*$//')' \;

COPY --from=builder /opt/osu/ /opt/osu/

RUN adduser --disabled-password --gecos '' osu
USER osu

ENTRYPOINT ["dotnet", "/opt/osu/osu!.dll"]