FROM python:3.12-slim-bullseye AS builder

# Build dummy packages to skip installing them and their dependencies
RUN apt-get update \
    && apt-get install -y --no-install-recommends equivs \
    && equivs-control libgl1-mesa-dri \
    && printf 'Section: misc\nPriority: optional\nStandards-Version: 3.9.2\nPackage: libgl1-mesa-dri\nVersion: 99.0.0\nDescription: Dummy package for libgl1-mesa-dri\n' >> libgl1-mesa-dri \
    && equivs-build libgl1-mesa-dri \
    && mv libgl1-mesa-dri_*.deb /libgl1-mesa-dri.deb \
    && equivs-control adwaita-icon-theme \
    && printf 'Section: misc\nPriority: optional\nStandards-Version: 3.9.2\nPackage: adwaita-icon-theme\nVersion: 99.0.0\nDescription: Dummy package for adwaita-icon-theme\n' >> adwaita-icon-theme \
    && equivs-build adwaita-icon-theme \
    && mv adwaita-icon-theme_*.deb /adwaita-icon-theme.deb

FROM python:3.12-slim-bullseye

# Copy dummy packages
COPY --from=builder /*.deb /

# Install dependencies and create byparr user
# You can test Chromium running this command inside the container:
#    xvfb-run -s "-screen 0 1600x1200x24" chromium --no-sandbox
# The error traces is like this: "*** stack smashing detected ***: terminated"
# To check the package versions available you can use this command:
#    apt-cache madison chromium
WORKDIR /app
    # Install dummy packages
RUN dpkg -i /libgl1-mesa-dri.deb \
    && dpkg -i /adwaita-icon-theme.deb \
    # Install dependencies
    && apt-get update \
    && apt-get install -y --no-install-recommends chromium xvfb dumb-init \
        procps xauth sudo \
    # Remove temporary files and hardware decoding libraries
    && rm -rf /var/lib/apt/lists/* \
    && rm -f /usr/lib/x86_64-linux-gnu/libmfxhw* \
    && rm -f /usr/lib/x86_64-linux-gnu/mfx/* \
    # Create byparr user
    && useradd --home-dir /app --shell /bin/sh byparr \
    && chown -R byparr:byparr . \
    && echo 'byparr ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers

# Install Python dependencies
COPY requirements.txt fix_nodriver.py novnc.sh .
RUN pip install -r requirements.txt \
    # Remove temporary files
    && rm -rf /root/.cache \
    && PYENV_PATH=/usr/local/lib/python3.12 python fix_nodriver.py

ENV INSTALL_NOVNC=false DISPLAY=:1.0
RUN ./novnc.sh

USER byparr

COPY src .

EXPOSE 8191

# dumb-init avoids zombie chromium processes
ENTRYPOINT ["/usr/bin/dumb-init", "--"]

CMD ["/bin/sh", "-c", "/usr/local/share/desktop-init.sh && python -u /app/main.py"]

# Local build
# docker build -t ngosang/byparr:3.3.21 .
# docker run -p 8191:8191 ngosang/byparr:3.3.21

# Multi-arch build
# docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
# docker buildx create --use
# docker buildx build -t ngosang/byparr:3.3.21 --platform linux/386,linux/amd64,linux/arm/v7,linux/arm64/v8 .
#   add --push to publish in DockerHub

# Test multi-arch build
# docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
# docker buildx create --use
# docker buildx build -t ngosang/byparr:3.3.21 --platform linux/arm/v7 --load .
# docker run -p 8191:8191 --platform linux/arm/v7 ngosang/byparr:3.3.21