# check inteernet connection
if [[ ! $(curl -Is http://www.google.com/ | head -n 1) =~ "200 OK" ]]; then
  echo "Your Internet seems broken. Press Ctrl-C to abort or enter to continue."
  read
fi

# BRAZELLL!!111!!ONZE11!!
loadkeys br-abnt2

# create partition table
parted -s /dev/sda mktable msdos
# boot partition
parted -s /dev/sda mkpart primary 0% 100m
# root partition
parted -s /dev/sda mkpart primary 100m 100%

# /boot (no journaling needed)
mkfs.ext2 /dev/sda1

# / (better fs for better performance)
mkfs.btrfs /dev/sda2

# mouting partitions
mount /dev/sda2 /mnt
mkdir /mnt/boot
mount /dev/sda1 /mnt/boot

# rankmirrors to make this faster (though it takes a while)
mv /etc/pacman.d/mirrorlist /etc/pacman.d/mirrorlist.orig
rankmirrors -n 6 /etc/pacman.d/mirrorlist.orig >/etc/pacman.d/mirrorlist

# enabled countrys
declare -a Cnts=("United States" "Brazil" "Portugal")

# output a file with each country
for Cnt in "${arr[@]}"
do
  awk -v GG=$Cnt '{if(match($0,GG) != "0")AA="1";if(AA == "1"){if( length($2) != "0"  )print substr($0,2) ;else AA="0"} }' /etc/pacman.d/mirrorlist > /etc/pacman.d/$Cnt.newmirrorlist
done

# merge files
awk 'FNR==1{print ""}1' *.newmirrorlist > /etc/pacman.d/mirrorlist.pacnew

# rank each mirror
rankmirrors /etc/pacman.d/mirrorlist.pacnew >/etc/pacman.d/mirrorlist

# and remove tmp files
rm *.newmirrorlist mirrorlist.pacnew

# update pacman databases
pacman -Syy

# install
pacstrap -i /mnt base base-devel

# update fstab
genfstab -U -p /mnt >> /mnt/etc/fstab

# finally chroot
arch-chroot /mnt pacman -S syslinux --noconfirm

# copy ranked mirrorlist over
cp /etc/pacman.d/mirrorlist /mnt/etc/pacman.d/mirrorlist

# huge chroot calls here
arch-chroot /mnt /bin/bash <<EOF
# set initial hostname
echo "archlinux-vm" >/etc/hostname

# set initial timezone to America/Sao_Paulo
ln -s /usr/share/zoneinfo/America/Sao_Paulo /etc/localtime

# setup locale
locale >/etc/locale.conf
echo "en_GB.UTF-8 UTF-8" >>/etc/locale.gen
echo "pt_BR.UTF-8 UTF-8" >>/etc/locale.gen

# generate locale
locale-gen

# no modifications to mkinitcpio.conf should be needed
mkinitcpio -p linux

# install syslinux bootloader
syslinux-install_update -i -a -m

# update syslinux config with correct root disk
sed 's/root=.*/root=\/dev\/sda2 ro/' < /boot/syslinux/syslinux.cfg > /boot/syslinux/syslinux.cfg.new

mv /boot/syslinux/syslinux.cfg.new /boot/syslinux/syslinux.cfg

# set root password to "root"
echo root:batata | chpasswd

# enable internet
systemctl enable dhcpcd@eth0.service

# no more chroot things
EOF

# unmount
umount /mnt/{boot,}

echo "Done! Unmount the CD image from the VM, then type 'reboot'."