HOSTNAME="ELFLaptop"
DISK="/dev/sdb"

function run(){
    echo "[    ] $1"
    echo "# $1" >>install.log
    echo "> $2" >>install.log
    bash -c "$2" &>>install.log \
        && echo -e "\e[1A\e[K[ \e[32mOK\e[0m ] $1" \
        || { 
            echo -e "\e[1A\e[K[\e[31mFAIL\e[0m] $1"
            bash -c "$3"
            exit
        }
     echo >>install.log
}

echo "" >install.log

echo
echo === setup localisation
echo

run "enable ntp"                  "timedatectl set-ntp true"
run "set timezone"                "timedatectl set-timezone Europe/Amsterdam"

echo
echo === setup partitions
echo

run "applly partion table"        "sfdisk $DISK <./elfLaptop.sfdisk"	

echo -n "disk encryption password: "
read -s PASS
echo
echo -n "retype password: "
read -s PASSRE
echo

if [ "$PASS" != "$PASSRE" ]; then
  echo "password do not match"
  exit
fi
echo

run "format boot partition"       "mkfs.fat -F 32 ${DISK}1"
run "format swap partition"       "mkswap ${DISK}2"
echo -n "$PASS" >keyfile.luks
run "encrypt root partition"      "cryptsetup luksFormat --batch-mode --key-file keyfile.luks ${DISK}3"     "rm keyfile.luks"
run "map root partitaion"         "cryptsetup open --batch-mode --key-file keyfile.luks ${DISK}3 cryptroot" "rm keyfile.luks"
rm keyfile.luks
run "format root partition"       "mkfs.btrfs /dev/mapper/cryptroot"

run "mount root partition"        "mount /dev/mapper/cryptroot /mnt"
run "create root btrfs subvolume" "btrfs subvolume create /mnt/@"
run "create home btrfs subvolume" "btrfs subvolume create /mnt/@home"
run "unmount btrfs"               "umount /mnt"
run "mount root subvolume"        "mount -o subvol=@ /dev/mapper/cryptroot /mnt"
run "make root directorys"        "mkdir -p /mnt/boot /mnt/home"
run "mount boot partition"        "mount ${DISK}1 /mnt/boot"
run "mount home subvolume"        "mount -o subvol=@home /dev/mapper/cryptroot /mnt/home"
run "enable swap"                 "swapon ${DISK}2"

echo
echo === install arch
echo

run "install base of arch"        "pacstrap /mnt base linux linux-firmware grub efibootmgr"
run "intall utitlities"           "pacstrap /mnt btrfs-progs man vim"
run "generate fstab"              "genfstab -U /mnt >>/mnt/etc/fstab"
run "copy in-root script"         "cp in-root.sh /mnt/root"

echo
echo === chroot config
echo

#arch-chroot /mnt bash /root/in-root.sh "$HOSTNAME" "$DISK"