#!/bin/sh
#_______________________________ FILE /home/pi/pinn_wheel.sh
#_______________________________ chmod +x pinn_wheel.sh
#_______________________________ start with sh pinn_wheel.sh

# if you have installed PINN
# on uSD
# or uSD and USB
# use mmcblk0p5  ( PINN partition SETTINGS )
# else
# on USB only
# use sda5

LastBootInfo='/dev/mmcblk0p5'
#LastBootInfo='/dev/sda5'

#_______________________________ PREPARE MOUNT PATH
MountPath='/media/pi/pinn5'

#echo 'sudo mkdir '$MountPath

if  [ -d "$MountPath" ]; then
  echo '__found '$MountPath
else
  echo '__once make mount folder '$MountPath
  sudo mkdir $MountPath
fi

#_______________________________ MOUNT
sudo mount $LastBootInfo $MountPath
cd $MountPath
#_______________________________ FILE
NoobsConf='noobs.conf'

echo '__sudo cat '$NoobsConf
sudo cat $NoobsConf

#_______________________________ MENU
NextDrive=6
echo '__ first partition number is '$NextDrive
echo -n '__ last boot to :'
grep noobs.conf -e "default_partition_to_boot="
echo 'Select Menu:'
echo '6 RaspiOS 64'
echo '8 RaspiOS Lite 64'

read -p 'input: boot to: ' Drive
# check if good number range
if [ $Drive -gt 5 ]; then
  if [ $Drive -lt 10 ]; then
    NextDrive=$Drive
  fi
fi

#_______________________________ EDIT
echo '__make copy as .old'
sudo cp $NoobsConf $NoobsConf.old
SearchString='default_partition_to_boot='
echo '__edit original'

SedScript1='2d'
SedScript2='2i\'$SearchString$NextDrive

echo _sed_$SedScript1
echo _sed_$SedScript2

sudo sed -i $SedScript1 $NoobsConf
sudo sed -i $SedScript2 $NoobsConf

echo '__sudo cat '$NoobsConf
sudo cat $NoobsConf



#_______________________________ UN MOUNT
cd
sudo umount $LastBootInfo
#_______________________________ RESTART PINN other OS
#read -t5 -p 'reboot now? [y/n]: ' RB
read -p 'reboot now? [y/n]: ' RB
if [ "$RB" = 'y' ]; then
  sudo reboot
fi

#_______________________________ END