#!/bin/bash
# script for iono-pi when starting from fresh rpi image
sudo apt install -y git raspberrypi-kernel-headers
git clone --depth 1 https://github.com/sfera-labs/iono-pi-kernel-module
cd iono-pi-kernel-module
make
sudo make install
dtc -@ -Hepapr -I dts -O dtb -o ionopi.dtbo ionopi.dts
sudo cp ionopi.dtbo /boot/overlays/

sudo_append_to () {
   sudo bash -c "grep -qxF '$2' $1 || sudo echo '$2' >> $1"
}
sudo_append_to /boot/config.txt dtoverlay=ionopi
sudo_append_to /boot/config.txt dtoverlay=i2c-rtc,mcp7941x
sudo groupadd ionopi  || true
sudo cp 99-ionopi.rules /etc/udev/rules.d/
sudo raspi-config nonint do_i2c 1
sudo apt install -y i2c-tools
sudo apt autoremove -y --purge fake-hwclock

# RTC clock
sudo cp ../config-rtc-MCP79410.service /etc/systemd/system/
sudo cp ../configrtc.sh /usr/local/bin/
sudo chmod 744 /usr/local/bin/configrtc.sh
sudo chown root:root /usr/local/bin/configrtc.sh
sudo systemctl enable config-rtc-MCP79410.service
sudo_append_to /etc/systemd/timesyncd.conf "NTP=pstime1.psi.ch pstime2.psi.ch pstime3.psi.ch"

echo "do the following:"
echo ""
echo "> sudo reboot now"
echo ""
echo "and, after reboot set RTC time and check it is working"
echo ""
echo "> sudo hwclock -w"
echo "> timedatectl status"