#!/bin/sh

#@@@@#


# [1] Set up firewall
sudo sh /home/pi/iptables;
echo "Set firewall rules" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;

# [2] Start ssh service
sudo systemctl start ssh;
echo "started ssh service" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;

# [3] Set random passwords for 'sats'
test ! -e /target/install && echo "First Boot" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
test   -e /target/install && echo "Normal Boot" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
echo "============" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
RANDOM_PASS=$(tr -cd A-Za-z0-9_ < /dev/urandom | head -c 256);
echo "$RANDOM_PASS\n$RANDOM_PASS\n" | sudo passwd sats;
echo "sats password changed" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;

# [4] Set random passwords for 'pi' itself
RANDOM_PASS=$(tr -cd A-Za-z0-9_ < /dev/urandom | head -c 256);
echo "$RANDOM_PASS\n$RANDOM_PASS\n" | sudo passwd pi;
echo "pi password changed" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;




################################################
####          ONLY ON FIRST BOOT            ####
################################################
if [ ! -e /target/install ]; then

	# (1) Try to install necessary packages
	sudo apt-get update;
	echo "package update done" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
	sudo apt-get -y install git php5 php5-cli php5-curl python-dev;
	echo "package install done" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;

	dpkg -s git 2>/dev/null >/dev/null && gitinstalled=1 || gitinstalled=0;

	BRANCH=$(sudo cat /home/sats/satsd/conf/machine.branch) > /dev/null;

	# (2) With git if installed #
	if [ $gitinstalled -eq 1 ]; then

		echo "cloning source.." | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
		sudo -u sats git clone -b $BRANCH ssh://smmp-server/satsd/git /home/sats/satsd/source \
			&& sudo -u sats touch /target/install \
			|| exit;

		echo "..done" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
	fi;



	# (2) Enable SPI device #
	echo "dtparam=spi=on" | sudo tee -a /boot/config.txt > /dev/null;
	echo "dtoverlay=spi-bcm2708" | sudo tee -a /boot/config.txt > /dev/null;
	echo "enabled SPI device" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;

	# (3) Clone SPI python library #
	sudo git clone https://github.com/lthiery/SPI-Py.git /home/pi/spi-lib;
	echo "Cloned SPI-Py lib" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;

	# (4) Install SPI python library #
	cd /home/pi/spi-lib;
	sudo python setup.py build;
	sudo python setup.py install;
	echo "Built SPI-Py lib" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;

	# (4) Reboot to activate SPI #
	sudo -u sats touch /target/install;
	echo "Created target file" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
	echo "Launching first reboot" | sudo -u sats tee -a /home/sats/satsd/log/install.log > /dev/null;
	sudo reboot;

fi;