raspberrypi

#!/bin/bash

WAYLAND_SESSION_NAME="LXDE-pi-labwc"

log() {
  if [[ $2 != "" ]]; then
    printf "\n[ERRO] $1\n"
    cat <<EOF 

The program has stopped due to the above error
If you believe this is a bug, please report it.
If you are having issues please ask for help from Geckoboard support

Press any key to exit
EOF

    # Give the user time to see this message
    read
    exit 127
  else
    printf "\n[INFO] $1\n"
  fi
}

upgrade_system() {
  sudo apt -qq upgrade -y
  sudo apt -qq autoremove -y > /dev/null
}

install_color_emoji() {
  NOTOEMOJI_ZIPFILE=noto_color_emoji.zip
  FONT_STORE=$HOME/.local/share/fonts
  NOTOEMOJI_DIR=noto_color_emoji

  curl -o $NOTOEMOJI_ZIPFILE https://noto-website-2.storage.googleapis.com/pkgs/NotoColorEmoji-unhinted.zip
  unzip $NOTOEMOJI_ZIPFILE -d $NOTOEMOJI_DIR

  mkdir -p $FONT_STORE

  mv $NOTOEMOJI_DIR/*.ttf $FONT_STORE/
  rm -r $NOTOEMOJI_DIR || true
  rm $NOTOEMOJI_ZIPFILE || true
}

install_hide_cursor() {
  if [[ $DESKTOP_SESSION = $WAYLAND_SESSION_NAME ]]; then
    echo "Hide cursor for labwc not supported yet"
    # This is not yet supported we need to either write something to use
    # wayland client to hide the cursor or use libinput to move the cursor
  else
    # Unclutter is only applicable to non-wayland setups
    sudo apt install -y unclutter
  fi
}

check_raspberrypi() {
  if ! `lsb_release -a | grep -Eq "Raspbian|Debian"`; then
    log "this device appears not to be running raspbian os" 1
  fi

  if ! `uname -m | grep -Eq "armv|aarch64"` ; then
    log "this device doesn't appear to be a raspberry pi" 1
  fi

  if [[ `echo $DESKTOP_SESSION | grep -Eq "^(LXDE-pi|LXDE-pi-labwc)$"` ]]; then
    log "this device isn't running a supported desktop environment", 1
  fi
}

install_kiosk_script_for_labwc_compositor() {
  GECKOBOARD_KIOSK_FILE=$HOME/.local/geckoboard_kiosk_mode
  LABWC_CONFIG_PATH=$HOME/.config/labwc
  LABWC_AUTOSTART=$LABWC_CONFIG_PATH/autostart

cat > $GECKOBOARD_KIOSK_FILE <<EOF
#!/bin/bash

# Ensure that if we have a power cut or bad shutdown that
# the chromium preferences are reset to a "good" state so we
# don't get the restore previous session dialog
sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' $HOME/.config/chromium/Default/Preferences
sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' $HOME/.config/chromium/Default/Preferences

# Disable any installed extentions and the default browser check and error dialogs
# We need to add the switch start-maximized otherwise on wayland it will 
# start as a pixel size and not displayed using start-maximized fixes that
chromium-browser \
--disable-extensions \
--start-maximized \
--start-fullscreen \
--no-default-browser-check \
https://app.geckoboard.com/tv

EOF

  mkdir -p $LABWC_CONFIG_PATH
  chmod +x $GECKOBOARD_KIOSK_FILE

  if grep -Fxq "$GECKOBOARD_KIOSK_FILE" $LABWC_AUTOSTART; then
    echo "[SKIP] kiosk mode already setup"
  else
    echo "$GECKOBOARD_KIOSK_FILE &" >> $LABWC_AUTOSTART
  fi
}

install_kiosk_script() {
  AUTOSTART_PATH=$HOME/.config/lxsession/LXDE-pi
  AUTOSTART_FILE=$AUTOSTART_PATH/autostart
  GECKOBOARD_KIOSK_FILE=$AUTOSTART_PATH/geckoboard_kiosk_mode

  mkdir -p $AUTOSTART_PATH

cat > $GECKOBOARD_KIOSK_FILE <<EOF
#!/bin/bash

# Turn off screensaver stuff and disable energysaver stuff
xset -dpms
xset s noblank
xset s off

# Remove the mouse cursor after 10 seconds of idleness
# This uses grab to remove focus from the browser in case of link hover
unclutter -idle 10 -grab &

# Ensure that if we have a power cut or bad shutdown that
# the chromium preferences are reset to a "good" state so we
# don't get the restore previous session dialog
sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' $HOME/.config/chromium/Default/Preferences
sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' $HOME/.config/chromium/Default/Preferences

# Disable any installed extentions and the default browser check
chromium-browser \
--disable-extensions \
--start-fullscreen \
--no-default-browser-check \
https://app.geckoboard.com/tv
EOF

  chmod +x $GECKOBOARD_KIOSK_FILE

  if [[ ! -f $AUTOSTART_FILE ]]; then
    # We are clear to clone the current autostart
    echo "[INFO] cloning system lxde autostart"
    cp /etc/xdg/lxsession/LXDE-pi/autostart $AUTOSTART_FILE

    log "adding kiosk mode to autostart"
    echo "@$GECKOBOARD_KIOSK_FILE" >> $AUTOSTART_FILE
  else
    if grep -Fxq "@$GECKOBOARD_KIOSK_FILE" $AUTOSTART_FILE; then
      echo "[SKIP] kiosk mode already setup"
    else
      log "adding kiosk mode to autostart"
      echo "@$GECKOBOARD_KIOSK_FILE" >> $AUTOSTART_FILE
    fi
  fi
}

disable_underscan() {
  # Create a backup file before modifying
  sudo cp /boot/config.txt /boot/config.txt.bkp
  sudo sed -i 's/#disable_overscan=1/disable_overscan=1/' /boot/config.txt
}

# Ensure for bookworm that when turning off the connected display instead of it
# disconnecting and causing Chrome to come out of fullscreen due to re-assessing
# the display, we now we enforce a permanent display when HDMI is "disconnected"
# We need to check which HDMI port is connected and inject to the boot cmdlines
#   1) Is HDMI port nearest to power
#   2) next one
#   3) we don't use here, but means both are connected
# This means that if we setup on 1 and connect to port 2 we will get a seperate
# display instead of the "main" one. Re-running this script will always update.
force_hdmi_display() {
  ACTIVE_HDMI_PORT=`wlr-randr | grep HDMI | grep -v null`
  BOOT_CMD_FILE=/boot/firmware/cmdline.txt
  sudo cp "$BOOT_CMD_FILE" "$BOOT_CMD_FILE".bkp

  HDMI_PORT=1
  HOTPLUG_CMD=vc4.force_hotplug

  if [[ "$ACTIVE_HDMI_PORT" =~ "HDMI-A-2" ]]; then
    HDMI_PORT=2
  fi

  if grep -q "$HOTPLUG_CMD" $BOOT_CMD_FILE; then
    echo "Amending existing HDMI hot plug setting"
    sed "s/$HOTPLUG_CMD=[1-3]/$HOTPLUG_CMD=$HDMI_PORT/" $BOOT_CMD_FILE | xargs echo -n | sudo tee $BOOT_CMD_FILE
  else
    echo "Setting up HDMI hotplug"
    echo -n " $HOTPLUG_CMD=$HDMI_PORT" | sudo tee -a $BOOT_CMD_FILE
  fi
}


# Display logo and intro to user
# ASCII display generated at https://www.ascii-art-generator.org/

cat <<EOF
   _____ ______ _____ _  ______  ____   ____          _____  _____ 
  / ____|  ____/ ____| |/ / __ \|  _ \ / __ \   /\   |  __ \|  __ \ 
 | |  __| |__   |    | ' / |  | | |_| | |  | | /  \  | |__| | |  | | 
 | | |_ |  __|  |    |  <  |  | |  _ <| |  | |/ /\ \ |  _  /| |  | | 
 | |__| | |___  |____| ' \ |__| | |_| | |__| / ____ \| | \ \| |__| | 
  \_____|______\_____|_|\_\____/|____/ \____/_/    \_\_|  \_\_____/ 


We will guide you through setting up your device optimized to display Geckoboard.
Along the way you will have the option to not do some things for which you can just press enter

The questions which will be asked will be just require either y for Yes or n for No
by default the answer will assume No (y/N) declared by the capital N in these cases you can just press enter

We will do the following;
 - Turn off any underscan if necessary
 - Upgrade your raspbian OS with the latest updates
 - Ensure Chromium is installed and the latest version available
 - Install color emoji support
 - Install Microsoft core fonts 
 - Install a script which will disable screensaver/power settings and
   start chromium at Geckoboard on each startup

 This process should only take a few minutes
 If you are ready press any key to start
EOF

read

check_raspberrypi

log "getting latest packages"
sudo apt update -y

# Only ask about underscan for non-wayland instances
if [[ $DESKTOP_SESSION != $WAYLAND_SESSION_NAME ]]; then
  printf "do you see black border around the screen [y/N]:"
  read blkbrd
  if [[ $blkbrd == "y" ]]; then
    log "disabling underscan"
    disable_underscan
  fi
fi

printf "do you want to install latest updates (it might take 10+ mins) [y/N]:"
read upgr
if [[ $upgr == "y" ]]; then
  log "updating os packages"
  upgrade_system
fi

log "installing latest chromium browser and tools"
sudo apt install -y chromium-browser > /dev/null
install_hide_cursor > /dev/null

log "installing mscore fonts"
sudo apt install -y ttf-mscorefonts-installer > /dev/null

log "installing color emoji support"
install_color_emoji > /dev/null

log "setting up Geckoboard kiosk mode"

# Wayfire compositor handles autostart so check the session
# and use the wayland installation as we can't support any X11 stuff
if [[ $DESKTOP_SESSION = $WAYLAND_SESSION_NAME ]]; then
  force_hdmi_display
  install_kiosk_script_for_labwc_compositor
else
  install_kiosk_script
fi

cat <<EOF

************ Setup complete ***********

Check out the send to TV support article on how to pair your device with Geckoboard
Now you are ready to reboot the raspberry pi.

When raspberry pi next starts up it should display the TV pin code

http://bit.ly/gbontvdoc

You'll be empowering your team to be the best in no time

When you are ready press any key to reboot. 
EOF

read
sudo reboot