# this work is based on https://github.com/bbusse/swayvnc
FROM ubuntu:latest
ARG flutter_version
WORKDIR /usr

ENV FLUTTER_HOME=/usr/flutter/bin
ENV PATH=${FLUTTER_HOME}:${PATH}
ENV LC_ALL=C.UTF-8
ENV LANG=C.UTF-8

LABEL maintainer="The one with the braid <the-one@with-the-braid.cf>"

ENV USER="vnc-user" \
    VNC_LISTEN_ADDRESS="0.0.0.0" \
    VNC_AUTH_ENABLE="false" \
    VNC_KEYFILE="key.pem" \
    VNC_CERT="cert.pem" \
    VNC_PASS="$(pwgen -yns 8 1)"

COPY selections.conf selections.conf

RUN apt update && apt install debconf-utils && dpkg-reconfigure debconf -f noninteractive -p critical \
    && debconf-set-selections < selections.conf

RUN apt upgrade -y

RUN apt install -y openssl socat sway keyboard-configuration  wayvnc libneatvnc0 \
    clang cmake ninja-build pkg-config libgtk-3-dev liblzma-dev git unzip foot curl

# Add application user
RUN groupadd --gid 3434 $USER \
    && useradd --uid 3434 --gid $USER --groups sudo,video,audio --shell /bin/bash --create-home $USER \
    && (echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers)

# Make sure we have UTF-8
RUN echo "LC_ALL=en_US.UTF-8" > /etc/environment \
 && echo "en_US.UTF-8 UTF-8" > /etc/locale.gen \
 && echo "LANG=en_US.UTF-8" > /etc/locale.conf
# && locale-gen en_US.UTF-8

# Copy sway config
COPY config /etc/sway/config

# Add wayvnc to compositor startup and put IPC on the network
RUN mkdir -p /etc/sway/config.d \
    && echo "exec wayvnc 0.0.0.0 5900" >> /etc/sway/config.d/exec \
    && echo "exec \"socat TCP-LISTEN:7023,fork UNIX-CONNECT:/tmp/sway-ipc.sock\"" >> /etc/sway/config.d/exec \
    && mkdir -p /home/$USER/.config/wayvnc/ \
    && printf "\
address=$VNC_LISTEN_ADDRESS\n\
enable_auth=$VNC_AUTH_ENABLE\n\
username=$USER\n\
password=$VNC_PASS\n\
private_key_file=/home/$USER/$VNC_KEYFILE\n\
certificate_file=/home/$USER/$VNC_CERT" > /home/$USER/.config/wayvnc/config

# Generate certificates for VNC
RUN openssl req -x509 -newkey rsa:4096 -sha256 -days 3650 -nodes \
	-keyout key.pem -out cert.pem -subj /CN=localhost \
	-addext subjectAltName=DNS:localhost,DNS:localhost,IP:127.0.0.1

RUN mkdir -p /usr/flutter && chown -R $USER /usr/flutter

RUN mkdir -p /home/$USER/.config && chown -R $USER /home/$USER/

USER $USER

ENV HOME /home/$USER
ENV PATH /home/$USER/.local/bin:/home/$USER/bin:${PATH}

RUN git clone --depth 1 https://github.com/flutter/flutter.git -b $flutter_version /usr/flutter

RUN flutter config --no-analytics && flutter precache --linux && flutter doctor

# Add entrypoint
COPY entrypoint.sh /entrypoint.sh
ENTRYPOINT ["/entrypoint.sh"]

WORKDIR /opt