#!/bin/bash

program_name="raspscreen"
runtime_id=$(id -u)
userland_name="${1-systemec}"

# Check if the user is right (root) for the program
if [[ "$runtime_id" -ne 0 ]]; then
    echo "Not running as root, please run as root."
    exit 1
fi
apt-get -y install \
    default-jre libreoffice-impress libreoffice-java-common psmisc ssh vlc

systemctl enable --now ssh

# Create the systemd userland folder
if [[ ! -d /home/${userland_name}/.config/systemd/user ]]; then
    mkdir -p /home/${userland_name}/.config/systemd/user -m 755
fi

# Create the program place onto /opt
if [[ ! -d /opt/${program_name} ]]; then
    mkdir -p /opt/${program_name}/media -m 755
fi

# THIS MUST BE THE SAME AR $REPO/service-files/presentation.service
cat > /home/${userland_name}/.config/systemd/user/presentation.service << EOF
[Unit]
Description="Systemec RaspScreen Presentation"
Conflicts=video.service
After=graphical-session.target

[Service]
Type=simple
Environment=DISPLAY=:0
WorkingDirectory=/opt/raspscreen
ExecStart=/opt/raspscreen/bin/manage.sh start presentation --foreground
KillSignal=SIGKILL
Restart=on-failure
RestartSec=2

[Install]
WantedBy=default.target
EOF

# THIS MUST BE THE SAME AR $REPO/service-files/video.service
cat > /home/${userland_name}/.config/systemd/user/video.service << EOF
[Unit]
Description="Systemec RaspScreen Video"
Conflicts=presentation.service
After=graphical-session.target

[Service]
Type=simple
Environment=DISPLAY=:0
WorkingDirectory=/opt/raspscreen
ExecStart=/opt/raspscreen/bin/manage.sh start video --foreground
KillSignal=SIGKILL
Restart=on-failure
RestartSec=2

[Install]
WantedBy=default.target
EOF

chown -Rv ${userland_name}:${userland_name} /home/${userland_name}/.config/systemd
chown -Rv ${userland_name}:${userland_name} /opt/${program_name}

echo "Self-destruction NOW!"
rm $(pwd)/$0