#!/bin/bash

FLAG=0
checkout=0
BULLSEYE=0
UPDATE=0

FILE=/home/pi/CubeSatSim/cubesatsim  # code has already been compiled
if [ -f "$FILE" ]; then

	UPDATE=1

	echo -e "\nUpdate script for CubeSatSim v2.2\n"

	if [ -z "$1" ] ; then
		checkout=0
	else
		checkout=1
		branch="$1"
		echo -n "changing to branch "
		echo $branch
		FLAG=1
	fi
	
	if [ "$2" = "n" ] ; then
		noreboot=1
	else
		noreboot=0
	fi

else

	echo -e "\nInstallation script for CubeSatSim v2.2\n"

	touch /home/pi/CubeSatSim/command_control_direwolf

    echo "creating $FILE"
    echo "AMSAT 0 0 0 no 3 434.9 435 no 0 0 no 60" > /home/pi/CubeSatSim/sim.cfg

	/home/pi/CubeSatSim/config -c -n

	/home/pi/CubeSatSim/config -l -n

fi

if [[ $(grep '11.' /etc/debian_version) ]]; then

	BULLSEYE=1

    echo "Debian 11 (Bullseye) detected"

  	sudo cp /boot/config.txt /boot/config.txt.0

	  sudo cp /boot/cmdline.txt /boot/cmdline.txt.0
	
	  sudo raspi-config nonint do_i2c 0
	
	  sudo raspi-config nonint do_camera 0
	
	  sudo raspi-config nonint do_legacy 0
	  
	  sudo sed -i 's/console=serial0,115200 //g' /boot/cmdline.txt
	
	  sudo sed -i 's/console=tty1 r/console=tty1 maxcpus=1 r/g' /boot/cmdline.txt # single core if Pi Zero 2
	
	  sudo sed -i 's/maxcpus=2/maxcpus=1/g' /boot/cmdline.txt # single core if Pi Zero 2
	
	  sudo sed -i 's/#dtparam=i2c_arm=on/dtparam=i2c_arm=on/g' /boot/config.txt
	  
	  if [[ $(grep 'dtoverlay=i2c-gpio,bus=3,i2c_gpio_delay_us=1,i2c_gpio_sda=23,i2c_gpio_scl=24' /boot/config.txt) ]]; then
	    echo "dtoverlay=i2c-gpio already in /boot/config.txt"
	  else
	    echo "adding dtoverlay=i2c-gpio to /boot/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=i2c-gpio,bus=3,i2c_gpio_delay_us=1,i2c_gpio_sda=23,i2c_gpio_scl=24" >> /boot/config.txt'
	  fi
	
	  if [[ $(grep 'enable_uart=1' /boot/config.txt) ]]; then
	    echo "enable_uart=1 already in /boot/config.txt"
	  else
	    echo "adding enable_uart=1 to /boot/config.txt"
	    sudo sh -c 'echo "\nenable_uart=1" >> /boot/config.txt'
	  fi
	  
	  if [[ $(grep 'dtoverlay=disable-bt' /boot/config.txt) ]]; then
	    echo "dtoverlay=disable-bt already in /boot/config.txt"
	  else
	    echo "adding dtoverlay=disable-bt to /boot/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=disable-bt" >> /boot/config.txt'
	  fi
	  
	  if [[ $(grep 'dtoverlay=dwc2' /boot/config.txt) ]]; then
	    echo "dtoverlay=dwc2 aalready in /boot/config.txt"
	  else
	    echo "adding dtoverlay=dwc2 to /boot/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=dwc2" >> /boot/config.txt'
	  fi
	
	  if [[ $(grep 'modules-load=dwc2,g_ether' /boot/cmdline.txt) ]]; then
	    echo "modules-load=dwc2,g_ether already in /boot/cmdline.txt"
	  else
	    echo "adding modules-load=dwc2,g_ether to /boot/cmdline.txt"
	    sudo sed -i 's/ rootwait/ rootwait modules-load=dwc2,g_ether/g' /boot/cmdline.txt
	  fi
	  
	  if [[ $(grep 'dtparam=audio=on' /boot/config.txt) ]]; then
	    echo "dtparam=audio=on already in /boot/config.txt"
	  else
	    echo "adding dtparam=audio=on to /boot/config.txt"
	    sudo sh -c 'echo "\ndtparam=audio=on" >> /boot/config.txt'
	  fi
	
	  if [[ $(grep 'dtoverlay=audremap,enable_jack=on' /boot/config.txt) ]]; then
	    echo "dtoverlay=audremap,enable_jack=on already in /boot/config.txt"
	  else
	    echo "adding dtoverlay=audremap,enable_jack=on to /boot/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=audremap,enable_jack=on" >> /boot/config.txt'
	  fi
	
	  if [[ $(grep 'dtoverlay=pwm,pin=18,func=2' /boot/config.txt) ]]; then
	    echo "dtoverlay=pwm,pin=18,func=2 already in /boot/config.txt"
	  else
	    echo "adding overlay=pwm,pin=18,func=2 to /boot/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=pwm,pin=18,func=2" >> /boot/config.txt'
	  fi
	
	  if [[ $(grep 'disable_splash=1' /boot/config.txt) ]]; then
	    echo "disable_splash=1 already in /boot/config.txt"
	  else
	    echo "adding disable_splash=1 to /boot/config.txt"
	    sudo sh -c 'echo "\ndisable_splash=1" >> /boot/config.txt'
	  fi
	
	  if [[ $(grep 'boot_delay=0' /boot/config.txt) ]]; then
	    echo "boot_delay=0 already in /boot/config.txt"
	  else
	    echo "adding boot_delay=0 to /boot/config.txt"
	    sudo sh -c 'echo "\nboot_delay=0" >> /boot/config.txt'
	  fi
	
	  if ! grep -q force_turbo=1 /boot/config.txt ; then sudo sh -c 'echo "force_turbo=1" >> /boot/config.txt'; fi
	
	  sudo sh -c 'echo "\n" >> /boot/config.txt'
  fi

if [[ $(grep 'bookworm' /etc/os-release) ]]; then
	
	echo "Debian 12 (Bookworm) detected"

	sudo cp /boot/firmware/config.txt /boot/firmware/config.txt.0
	
	sudo cp /boot/firmware/cmdline.txt /boot/firmware/cmdline.txt.0
	
	sudo raspi-config nonint do_i2c 0
	
	sudo raspi-config nonint do_camera 0
	
	sudo raspi-config nonint do_legacy 0
	
	  sudo sed -i 's/console=serial0,115200 //g' /boot/firmware/cmdline.txt
	
	  sudo sed -i 's/console=tty1 r/console=tty1 maxcpus=1 r/g' /boot/firmware/cmdline.txt # single core if Pi Zero 2
	
	  sudo sed -i 's/maxcpus=2/maxcpus=1/g' /boot/firmware/cmdline.txt # single core if Pi Zero 2
	
	  sudo sed -i 's/#dtparam=i2c_arm=on/dtparam=i2c_arm=on/g' /boot/firmware/config.txt
	  
	  if [[ $(grep 'dtoverlay=i2c-gpio,bus=3,i2c_gpio_delay_us=1,i2c_gpio_sda=23,i2c_gpio_scl=24' /boot/firmware/config.txt) ]]; then
	    echo "dtoverlay=i2c-gpio already in /boot/firmware/config.txt"
	  else
	    echo "adding dtoverlay=i2c-gpio to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=i2c-gpio,bus=3,i2c_gpio_delay_us=1,i2c_gpio_sda=23,i2c_gpio_scl=24" >> /boot/firmware/config.txt'
	  fi
	
	  if [[ $(grep 'enable_uart=1' /boot/firmware/config.txt) ]]; then
	    echo "enable_uart=1 already in /boot/firmware/config.txt"
	  else
	    echo "adding enable_uart=1 to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\nenable_uart=1" >> /boot/firmware/config.txt'
	  fi
	  
	  if [[ $(grep 'dtoverlay=disable-bt' /boot/firmware/config.txt) ]]; then
	    echo "dtoverlay=disable-bt already in /boot/firmware/config.txt"
	  else
	    echo "adding dtoverlay=disable-bt to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=disable-bt" >> /boot/firmware/config.txt'
	  fi
	  
	  if [[ $(grep 'dtoverlay=dwc2' /boot/firmware/config.txt) ]]; then
	    echo "dtoverlay=dwc2 aalready in /boot/firmware/config.txt"
	  else
	    echo "adding dtoverlay=dwc2 to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=dwc2" >> /boot/firmware/config.txt'
	  fi
	
	  if [[ $(grep 'modules-load=dwc2,g_ether' /boot/firmware/cmdline.txt) ]]; then
	    echo "modules-load=dwc2,g_ether already in /boot/firmware/cmdline.txt"
	  else
	    echo "adding modules-load=dwc2,g_ether to /boot/firmware/cmdline.txt"
	    sudo sed -i 's/ rootwait/ rootwait modules-load=dwc2,g_ether/g' /boot/firmware/cmdline.txt
	  fi
	  
	  if [[ $(grep 'dtparam=audio=on' /boot/firmware/config.txt) ]]; then
	    echo "dtparam=audio=on already in /boot/firmware/config.txt"
	  else
	    echo "adding dtparam=audio=on to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ndtparam=audio=on" >> /boot/firmware/config.txt'
	  fi
	
	  if [[ $(grep 'dtoverlay=audremap,enable_jack=on' /boot/firmware/config.txt) ]]; then
	    echo "dtoverlay=audremap,enable_jack=on already in /boot/firmware/config.txt"
	  else
	    echo "adding dtoverlay=audremap,enable_jack=on to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=audremap,enable_jack=on" >> /boot/firmware/config.txt'
	  fi
	
	  if [[ $(grep 'dtoverlay=pwm,pin=18,func=2' /boot/firmware/config.txt) ]]; then
	    echo "dtoverlay=pwm,pin=18,func=2 already in /boot/firmware/config.txt"
	  else
	    echo "adding  to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ndtoverlay=pwm,pin=18,func=2" >> /boot/firmware/config.txt'
	  fi
	
	  if [[ $(grep 'disable_splash=1' /boot/firmware/config.txt) ]]; then
	    echo "disable_splash=1 already in /boot/firmware/config.txt"
	  else
	    echo "adding disable_splash=1 to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ndisable_splash=1" >> /boot/firmware/config.txt'
	  fi
	
	  if [[ $(grep 'boot_delay=0' /boot/firmware/config.txt) ]]; then
	    echo "boot_delay=0 already in /boot/firmware/config.txt"
	  else
	    echo "adding boot_delay=0 to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\nboot_delay=0" >> /boot/firmware/config.txt'
	  fi
	
	  if [[ $(grep 'camera_auto_detect=1' /boot/firmware/config.txt) ]]; then
	    echo "camera_auto_detect=1 already in /boot/firmware/config.txt"
	  else
	    echo "adding camera_auto_detect=1 to /boot/firmware/config.txt"
	    sudo sh -c 'echo "\ncamera_auto_detect=1" >> /boot/firmware/config.txt'
	  fi
	
	  if ! grep -q force_turbo=1 /boot/firmware/config.txt ; then sudo sh -c 'echo "force_turbo=1" >> /boot/firmware/config.txt'; fi

	  sudo sh -c 'echo "\n" >> /boot/firmware/config.txt'

elif [[ $(grep 'trixie' /etc/os-release) ]]; then

	echo "Trixie detected, installation continuing."
	echo "Your Pi OS version is not Bookworm or Bullseye."
	echo "The software installation will likely not work."
	echo "See the README.md for how to install using Bookworm."
	echo

	echo "Are you sure you want to continue the installation (y/n)?"
	
	read -r ANS
	
	if [ "$ANS" = "n" ]; then	
	    exit 1
	fi
fi
>>>>>>> 9518ba870ed4548fcaf00285b0578312a9a300c2

FILE=/home/pi/CubeSatSim/sim.cfg
if [ -f "$FILE" ]; then
    echo "$FILE exists."

	changed=0
	value=`cat /home/pi/CubeSatSim/sim.cfg`
	# echo "$value"
	echo "$value" > /dev/null
	set -- $value
	
	if [ -z "$1" ] ; then n1="AMSAT" ; changed=1 ; else n1=$1 ; fi # callsign
	if [ -z "$2" ] ; then n2="0" ; changed=1 ; else n2=$2 ; fi # reset count
	if [ -z "$3" ] ; then n3="0" ; changed=1 ; else n3=$3 ; fi # lat
	if [ -z "$4" ] ; then n4="0" ; changed=1 ; else n4=$4 ; fi # lon
	if [ -z "$5" ] ; then n5="no" ; changed=1 ; else n5=$5 ; fi # sim mode
	if [ -z "$6" ] ; then n6="3" ; changed=1 ; else n6=$6 ; fi # squelch
	if [ -z "$7" ] ; then n7="434.9000" ; changed=1 ; else n7=$7 ; fi # transmit frequency
	if [ -z "$8" ] ; then n8="435.0000" ; changed=1 ; else n8=$8 ; fi # receive frequency
	if [ -z "$9" ] ; then n9="no" ; changed=1 ; else n9=$9 ; fi # hab mode
	if [ -z "${10}" ] ; then m1="0" ; changed=1 ; else m1=${10} ; fi # rx pl code 
	if [ -z "${11}" ] ; then m2="0" ; changed=1 ; else m2=${11} ; fi # tx pl code
	if [ -z "${12}" ] ; then m3="no" ; changed=1 ; else m3=${12} ; fi # random fail
	if [ -z "${13}" ] ; then m4="60" ; changed=1 ; else m4=${13} ; fi # random fail period

	if [ $changed -eq 1 ]; then
		echo -e "Current sim.cfg configuration file:"	
		echo
		echo $1 $2 $3 $4 $5 $6 $7 $8 $9 ${10} ${11} ${12} ${13}
		echo -e "\nCubeSatSim configuration sim.cfg file updated to: \n"
		echo
		echo $n1 $n2 $n3 $n4 $n5 $n6 $n7 $n8 $n9 $m1 $m2 $m3 $m4
		echo $n1 $n2 $n3 $n4 $n5 $n6 $n7 $n8 $n9 $m1 $m2 $m3 $m4> /home/pi/CubeSatSim/sim.cfg
		echo
	fi

else 
    echo "creating $FILE"
    echo "AMSAT 0 0 0 no 3 434.9 435 no 0 0 no 60" > /home/pi/CubeSatSim/sim.cfg
fi

if [[ $(grep 'cubesatsim' /etc/motd) ]]; then
	echo "motd already updated"
else
	echo "updating motd"
	sudo sh -c 'cat /home/pi/CubeSatSim/motd.txt >> /etc/motd'
fi

FILE=/home/pi/CubeSatSim/command_tx
if [ -f "$FILE" ]; then
    echo "$FILE exists."
else 
    echo "creating $FILE"
    echo "True\n" > /home/pi/CubeSatSim/command_tx
fi

FILE=/home/pi/CubeSatSim/command_count.txt
if [ -f "$FILE" ]; then
    echo "$FILE exists."
else 
    echo "creating $FILE"
    echo "0\n" > /home/pi/CubeSatSim/command_count.txt
fi
  
sudo apt-get update && sudo apt-get dist-upgrade -y

# if [ $BULLSEYE -eq 1 ]; then
#	sudo apt purge -y python3-pip
#	sudo apt install -y python3-pip
# fi

cp /home/pi/CubeSatSim/groundstation/pacsat.desktop /home/pi/Desktop/pacsat.desktop

if [ ! -d "/home/pi/venv" ]; then

	cd
	sudo apt install -y python3-venv
	sudo python3 -m venv venv
	source /home/pi/venv/bin/activate
	
	curl https://bootstrap.pypa.io/get-pip.py | sudo /home/pi/venv/bin/python3
	
	sudo /home/pi/venv/bin/pip3 install adafruit_extended_bus
	sudo /home/pi/venv/bin/pip3 install adafruit-circuitpython-ina219

fi
>>>>>>> 9518ba870ed4548fcaf00285b0578312a9a300c2

sudo apt-get remove pulseaudio -y

sudo apt-get install -y gcc g++ make cmake libasound2-dev libudev-dev libavahi-client-dev libgpiod-dev raspi-config 

# removed wiringpi and python-picamera python3-picamera 
sudo apt-get install -y git libasound2-dev i2c-tools build-essential libgd-dev libmagic-dev minicom

if [ ! -d "/home/pi/direwolf" ]; then

	cd	
	git clone https://github.com/alanbjohnston/direwolf.git
	cd direwolf	
	make -j
	sudo make install	
	make install-rpi
fi

	sudo apt-get install -y gpsd gpsd-clients libgps-dev python3-gps
	sudo systemctl disable gpsd
	sudo systemctl disable gpsd.socket

if [ ! -d "/home/pi/WiringPi" ]; then
	cd
	git clone https://github.com/alanbjohnston/WiringPi
	cd WiringPi
	./build debian
	sudo dpkg -i debian-template/wiringpi-2.61-1.deb
fi

cd

if [ ! $BULLSEYE -eq 1 ]; then
	sudo apt install -y libtiff6
fi

sudo apt install -y python3-pip python3-smbus libjpeg-dev zlib1g-dev libfreetype6-dev libopenjp2-7 python3-pil python3-serial libusb-1.0-0 libusb-1.0-0-dev

if [ $BULLSEYE -eq 1 ] || [ $UPDATE -eq 0 ] ; then

	sudo pip3 install --upgrade setuptools
	
	sudo pip3 install adafruit-blinka RPI.GPIO adafruit-extended-bus adafruit-circuitpython-ina219

fi

cd /home/pi/CubeSatSim

git pull --no-rebase > .updated

if [ $checkout -eq 1 ]; then
	git checkout $branch	
	git pull --no-rebase > .updated
	FLAG=1
	echo "Running update script again"
	/home/pi/CubeSatSim/install
fi

make debug

FILE=/home/pi/CubeSatSim/.mode
if [ -f "$FILE" ]; then
    echo "$FILE exists."
else 
    echo "creating $FILE"
    echo "b" > .mode
fi

cd

git clone https://github.com/wb2osz/direwolf.git
cd direwolf
mkdir build 
cd build
cmake ..
make -j4
sudo make install
make install-conf

cd

if [ ! -d "/home/pi/pi-power-button" ]; then

	cd
	git clone https://github.com/alanbjohnston/pi-power-button.git
	cd pi-power-button
	git checkout master
	./script/install	
	sudo apt-get install -y libraspberrypi-dev

fi

cd /home/pi/pi-power-button

git pull --no-rebase > .updated_p
git checkout master
grep 'changed' /home/pi/pi-power-button/.updated_p
if [[ $(grep 'changed' /home/pi/pi-power-button/.updated_p) ]]; then
	echo "updating pi-power-button."
	script/install
	FLAG=1
fi

cd

FILE=/home/pi/pi_pacsat/Debug/pi_pacsat  # code has already been compiled
if [ ! -f "$FILE" ]; then
	cd
	git clone https://github.com/alanbjohnston/g0kla_common.git
	cd g0kla_common/Debug/
	make all
	sudo ./install.sh
	
	cd
	#git clone https://github.com/alanbjohnston/pi_pacsat.git
	git clone https://github.com/ac2cz/pi_pacsat.git
	cd pi_pacsat
	#git checkout master-debug
	cd Debug
	make all
	
	mkdir /home/pi/PacSat
	mkdir /home/pi/PacSat/pacsat
	mkdir /home/pi/PacSat/pacsat/dir
	
	export LD_LIBRARY_PATH=/mnt/usb-disk/ariss/lib:/usr/local/lib/iors_common:$LD_LIBRARY_PATH
	
	#value=`cat /home/pi/CubeSatSim/sim.cfg`
	#echo "$value" > /dev/null
	#set -- $value
	
	echo "bit_rate=9600" > pacsat.config
	echo "bbs_callsign=AMSAT-12" >> pacsat.config
	echo "broadcast_callsign=AMSAT-11" >> pacsat.config
	echo "digi_callsign=AMSAT-1" >> pacsat.config
	echo "max_frames_in_tx_buffer=5" >> pacsat.config
	
	echo "pb_open=1" > pacsat.state
	echo "uplink_open=1" >> pacsat.state
	echo "pb_max_period_for_client_in_seconds=60" >> pacsat.state
	echo "uplink_max_period_for_client_in_seconds=60" >> pacsat.state
fi

FILE=/home/pi/pacsat_telem/Debug/pacsat_telem  # code has already been compiled
if [ ! -f "$FILE" ]; then
	cd
	sudo apt-get install -y libbsd-dev
	git clone https://github.com/alanbjohnston/pacsat_telem.git
	cd pacsat_telem
	git checkout master-fox
	cd Debug
	make all
fi

sudo sed -i 's/#hdmi_group=1/hdmi_group=2/g' /boot/config.txt
sudo sed -i 's/#hdmi_mode=1/hdmi_mode=16/g' /boot/config.txt
sudo sed -i 's/#hdmi_force_hotplug=1/hdmi_force_hotplug=1/g' /boot/config.txt

sudo raspi-config nonint do_vnc 0

cd /tmp

wget https://www.g0kla.com/pacsat/downloads/test/PacsatGround_unix_0_46o.tar.gz

tar -xzf PacsatGround_unix_0_46o.tar.gz -C /home/pi/Desktop

rm PacsatGround_unix_0_46o.tar.gz

cp /home/pi/CubeSatSim/spacecraft/PacSatGround_0.46o/* /home/pi/Desktop/PacsatGround/spacecraft/
	
mkdir /home/pi/PacSatGround

sudo usermod -a -G gpio pi

sudo apt-get install default-jdk -y

cd

if [ ! -d "/home/pi/PiSSTVpp" ]; then

  sudo apt-get update -y
  sudo apt-get install -y python-picamera python3-picamera build-essential libgd-dev libmagic-dev
  cd
  git clone https://github.com/alanbjohnston/PiSSTVpp.git
  cd PiSSTVpp
  make pisstvpp

fi

if [ ! -d "/home/pi/rpitx" ]; then

	cd
	git clone https://github.com/alanbjohnston/rpitx.git
	cd rpitx
	./install.sh
	cd
else

	if [[ $(grep 'SYNCWITHPWM'  /home/pi/rpitx/src/librpitx/src/fskburst.h) ]]; then
	    echo "rpitx library already updated"
	else
	    echo "updating rpitx"
	    cd  /home/pi/rpitx
	    git pull
	    ./update.sh
	    cd
	fi
fi

FILE=/etc/systemd/system/cubesatsim.service
if [ -f "$FILE" ]; then
	if [[ $(diff /home/pi/CubeSatSim/systemd/cubesatsim.service /etc/systemd/system/cubesatsim.service) ]]; then
	  echo "changed cubesatsim.service."
	  sudo cp /home/pi/CubeSatSim/systemd/cubesatsim.service /etc/systemd/system/cubesatsim.service
	  FLAG=1
	else
	  echo "no changes to cubesatsim.service."
	fi
else
  echo "creating cubesatsim.service."
  sudo cp /home/pi/CubeSatSim/systemd/cubesatsim.service /etc/systemd/system/cubesatsim.service
  sudo systemctl enable command

  FLAG=1
fi

FILE=/etc/systemd/system/rpitx.service
if [ -f "$FILE" ]; then
  sudo systemctl disable rpitx
  sudo rm /etc/systemd/system/rpitx.service
fi

FILE=/etc/systemd/system/transmit.service
if [ -f "$FILE" ]; then
  if [[ $(diff /home/pi/CubeSatSim/systemd/transmit.service /etc/systemd/system/transmit.service) ]]; then
    echo "changed transmit.service."
    sudo cp /home/pi/CubeSatSim/systemd/transmit.service /etc/systemd/system/transmit.service
    FLAG=1
  else
    echo "no change to transmit.service."
  fi
else
  echo "creating transmit.service."
  sudo cp /home/pi/CubeSatSim/systemd/transmit.service /etc/systemd/system/transmit.service
  FLAG=1
fi

FILE=/etc/systemd/system/command.service
if [ -f "$FILE" ]; then
  if [[ $(diff /home/pi/CubeSatSim/systemd/command.service /etc/systemd/system/command.service) ]]; then
    echo "changed command.service."
    sudo cp /home/pi/CubeSatSim/systemd/command.service /etc/systemd/system/command.service
    FLAG=1
  else
    echo "no change to command.service."
  fi
else
  echo "creating command.service."
  sudo cp /home/pi/CubeSatSim/systemd/command.service /etc/systemd/system/command.service
  sudo systemctl enable command
  FLAG=1
fi

FILE=/etc/systemd/system/pacsatsim.service
if [ -f "$FILE" ]; then
  if [[ $(diff /home/pi/CubeSatSim/systemd/pacsatsim.service /etc/systemd/system/pacsatsim.service) ]]; then
    echo "changed pacsatsim.service."
    sudo cp /home/pi/CubeSatSim/systemd/pacsatsim.service /etc/systemd/system/pacsatsim.service
    FLAG=1
  else
    echo "no change to pacsatsim.service."
  fi
else
  echo "creating pacsatsim.service."
  sudo cp /home/pi/CubeSatSim/systemd/pacsatsim.service /etc/systemd/system/pacsatsim.service
  sudo systemctl enable command
  FLAG=1
fi

FILE=/etc/asound.conf
if [ -f "$FILE" ]; then
  if [[ $(diff /home/pi/CubeSatSim/asound.conf /etc/asound.conf) ]]; then
    echo "changed /etc/asound.conf."
    sudo cp /home/pi/CubeSatSim/asound.conf /etc/asound.conf
    FLAG=1
  else
    echo "no change to /etc/asound.conf."
  fi
else
  echo "creating /etc/asound.conf."
  sudo cp /home/pi/CubeSatSim/asound.conf /etc/asound.conf
  FLAG=1
fi

FILE=/home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg
if [ ! -f "$FILE" ]; then
    echo "Copying SSTV image 1."
    cp /home/pi/CubeSatSim/sstv/sstv_image_1_320_x_256.jpg /home/pi/CubeSatSim/sstv_image_1_320_x_256.jpg
fi
    
FILE=/home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg
if [ ! -f "$FILE" ]; then
    echo "Copying SSTV image 2."
    cp /home/pi/CubeSatSim/sstv/sstv_image_2_320_x_256.jpg /home/pi/CubeSatSim/sstv_image_2_320_x_256.jpg
fi

sudo sed -i 's/DEVICES=""/DEVICES="\/dev\/serial0"/g' /etc/default/gpsd

sudo sed -i 's/GPSD_OPTIONS=""/GPSD_OPTIONS="-s 9600"/g' /etc/default/gpsd

if [ ! -d "/home/pi/fctelem" ]; then
	echo "Installing fctelem binary v0.2 for FUNcube mode"
	cd
	mkdir /home/pi/fctelem
	mkdir /home/pi/fctelem/public_html
	cd fctelem
	wget https://github.com/alanbjohnston/go/releases/download/v0.2/fctelem.zip
	unzip -u fctelem.zip
	FLAG=1
elif [ ! -f "/home/pi/fctelem/v0.2" ]; then
	echo "Updating fctelem binary to version v0.2 for FUNcube mode"
	cd
	cd /home/pi/fctelem
	sudo mv fctelem fctelem.bk
	sudo mv fcdecode.conf fcdecode.conf.bk
	sudo mv fctelem.zip fctelem.zip.1
	wget https://github.com/alanbjohnston/go/releases/download/v0.2/fctelem.zip
	unzip -u fctelem.zip
	FLAG=1
fi

if [ ! -f "/home/pi/MPU6050-C-CPP-Library-for-Raspberry-Pi/mpu6050" ]; then
	echo "Installing MPU6050-C-CPP-Library-for-Raspberry-Pi"
	sudo apt-get install -y libi2c-dev
	cd
	git clone https://github.com/alanbjohnston/MPU6050-C-CPP-Library-for-Raspberry-Pi.git
	cd MPU6050-C-CPP-Library-for-Raspberry-Pi
	sudo make install
	make payload
fi

cd /home/pi/MPU6050-C-CPP-Library-for-Raspberry-Pi
git checkout master
git pull --no-rebase > .updated_p

if [[ $(grep 'changed' /home/pi/MPU6050-C-CPP-Library-for-Raspberry-Pi/.updated_p) ]]; then
	echo "updating MPU6050-C-CPP-Library-for-Raspberry-Pi"
	sudo make install
	make payload
else
	echo "nothing to do for MPU6050-C-CPP-Library-for-Raspberry-Pi."
fi 

if [ ! -f "/home/pi/raspberry-pi-bme280/bme280" ]; then
	echo "Installing raspberry-pi-bme280"
	sudo apt-get install -y libi2c-dev
	cd
	git clone https://github.com/alanbjohnston/raspberry-pi-bme280.git
	cd raspberry-pi-bme280
	git checkout payload
	make 
fi

cd /home/pi/raspberry-pi-bme280
git checkout payload
git pull --no-rebase > .updated_p

if [[ $(grep 'changed' /home/pi/raspberry-pi-bme280/.updated_p) ]]; then

	echo "updating raspberry-pi-bme280"
	make

else
	echo "nothing to do for raspberry-pi-bme280."
fi 

if [ ! -f "/home/pi/fcdctl/fcdctl" ]; then
	echo "Installing fcdctl to set FUNcubeDongle Pro gain"
	sudo rm /var/lib/dpkg/info/python3-pip.list
	sudo apt install python3-pip --reinstall
	sudo apt-get install -y python3-smbus libusb-1.0 
	cd
	git clone https://github.com/csete/fcdctl.git
	cd fcdctl
	make fcdpp
fi

if [ ! -f "/home/pi/ssdv/ssdv" ]; then
	cd
	echo "Installing SSDV for FUNcube mode"
	git clone https://github.com/alanbjohnston/ssdv.git  # install ssdv for FUNcube images
	cd ssdv
	make
fi

cd

#echo "Would you like to reboot to complete the installation (y/n)?"

#read -r ANS

#if [ "$ANS" = "y" ]; then

#    sudo reboot now

#else

 #   echo "The CubeSatSim software will start next time you reboot"
    
#fi

if [ "$noreboot" = "0" ] ; then  

	if [ $FLAG -eq 1 ]; then
	  echo "systemctl daemon-reload and reboot"
	  sudo systemctl daemon-reload 
	  sudo reboot -h now
#  sudo  cubesatsim
	else
	  grep 'changed' /home/pi/CubeSatSim/.updated
	  if [[ $(grep 'changed' /home/pi/CubeSatSim/.updated) ]]; then
	    echo "reboot due to code changes " | wall
	    sudo reboot -h now
#    sudo  cubesatsim
	  else
	    echo "nothing to do."
	  fi  
	fi
else
	if [ $FLAG -eq 1 ]; then
		echo "reboot needed for changes to take effect" | wall
	fi
fi