#!/usr/bin/env bash
# rc.local
#
# This script is executed at the end of each multiuser runlevel.
# Make sure that the script will "exit 0" on success or any other
# value on error.
#
# In order to enable or disable this script just change the execution
# bits.
#
# By default this script does nothing.

set -e

which chromium-browser > /dev/null && [ -d /etc/chromium ] && mv /etc/chromium/ /etc/chromium-browser

sleep 10


# Print the IP address
_IP=$(hostname -I) || true
if [ "$_IP" ]; then
  printf "My IP address is %s\n" "$_IP"
fi

macaddress=$(find /sys/class/net -mindepth 1 -maxdepth 1 ! -name lo -printf "%P: " -execdir cat {}/address \; | cut -f 2  -d ' ')

#Hostname wird anhand des WLAN0 erstell / kann auch entsprechend auf anderes Geraet umgestellt werden
#ip a s wlan1 2&>1 /dev/null || 
#Check einbauen der aktive Verbindung prüft
if [ -d /home/pi ]; then
	echo pi$(echo $macaddress | sed s'/://g') > /tmp/hostname && hostname --file /tmp/hostname
else
	echo thin$(echo $macaddress | sed s'/://g') > /tmp/hostname && hostname --file /tmp/hostname
fi

cp /tmp/hostname /etc/hostname

# insert/update hosts entry
ip_address="127.0.2.1"
host_name=$(cat /tmp/hostname)
# find existing instances in the host file and save the line numbers
matches_in_hosts="$(grep -n $host_name /etc/hosts | cut -f1 -d:)"
host_entry="${ip_address}\ ${host_name}\ ${host_name}.lebenshilfe.local"

echo "Please enter your password if requested."

if [ ! -z "$matches_in_hosts" ]
then
    echo "Updating existing hosts entry."
    # iterate over the line numbers on which matches were found
    while read -r line_number; do
        # replace the text of each line with the desired host entry
        sed -i ${line_number}s'/.*/${host_entry}/' /etc/hosts
    done <<< "$matches_in_hosts"
else
    echo "Adding new hosts entry."
    echo "$host_entry" | sudo tee -a /etc/hosts > /dev/null
fi


# set network 

# start X environment
if [ -f /boot/client-cfg/xinitrc ]; then
	if [ -d /home/pi ]; then
		ln -fs /boot/client-cfg/xinitrc /home/pi/.xinitrc;
		su -l pi -s /bin/bash -c 'startx -- vt1' &
	else
		ln -fs /boot/client-cfg/xinitrc /home/thinnote/.xinitrc;
		su -l thinnote -s /bin/bash -c 'startx -- vt1' &
	fi
fi

exit 0