# If you haven't done before, you should replace the "init"-value in cmdline.txt with these:
# init=/bin/bash -c "mount -t proc proc /proc; mount -t sysfs sys /sys; mount /boot; source /boot/makepico8"



# Preconfiguring...
mount -t tmpfs tmp /run
mkdir -p /run/systemd
mount / -o remount,rw


# Remove init-Script and replace it with some options to prevent Console-Output
sed -i 's| init=.*| quiet logo\.nologo loglevel=3|' /boot/cmdline.txt
sed -i 's|console=tty1|consoly=tty3|' /boot/cmdline.txt


# Create Folders if not exist; disable motd
mkdir -p /boot/pico-8/screenshots
touch /boot/pico-8/.hushlogin


# Install libwiringPi. You can find the newest Version on
# https://archive.raspberrypi.org/debian/pool/main/w/wiringpi/
# (needs a functioning PATH-Variable)
export PATH=$PATH:/usr/local/sbin/
export PATH=$PATH:/usr/sbin/
export PATH=$PATH:/sbin
yes | dpkg -i /boot/wiringpi_*_armhf.deb


# Create Group and User "pico8"
groupadd pico8
useradd -d /boot/pico-8 -M -g pico8 -G video,audio,input -s /bin/bash pico8


# Change /etc/fstab . Without root- or sudo-Permission, normal users aren't capable of writing vfat-Partition.
# After these Changes, user "pico8" will be able to do so...
picouid=$(id -u pico8)
picogid=$(id -g pico8)
sed -i "s/\(\/boot.*vfat.*\)defaults\(.*\)/\1rw,uid=$picouid,gid=$picogid\2/" /etc/fstab


# Autologin the new User
mkdir /etc/systemd/system/getty@tty1.service.d
cat > /etc/systemd/system/getty@tty1.service.d/override.conf << EOF
[Service]
Type=simple
ExecStart=
ExecStart=-/sbin/agetty --skip-login --noclear --noissue --login-options "-f pico8" %I $TERM
EOF


# Start PICO8 after Login
cat > /boot/pico-8/.profile << EOF
PS1=""
pgrep pico8 || (cd ~; amixer sset 'PCM' 80% > /dev/null 2>&1; ./pico8 > /dev/null 2>&1 -home /boot/pico-8 -desktop /boot/pico-8/screenshots -splore; sudo /sbin/shutdown -h now)
EOF


# Allow User to shutdown
cat >> /etc/sudoers << EOF
pico8 ALL=(ALL) NOPASSWD: /sbin/shutdown
EOF


# Optional Overclocking; If you don't know how to do, it's the best to not touch these...
# On actual State, this does nothing.
cat >> /boot/config.txt << EOF
#arm_freq=1000
#core_freq=500
#over_voltage=6
#sdram_freq=500
#force_turbo=1
EOF


#Postconfiguring...
sync
umount /boot
mount / -o remount,ro
sync
sleep 5


# Call Resize-Script
/usr/lib/raspi-config/init_resize.sh