#!/bin/bash
set -e

DISK="/dev/nvme1n1"
HOSTNAME="arch"
USERNAME="hacker"
PASSWORD="123456"
TIMEZONE="America/Sao_Paulo"
LOCALE="pt_BR.UTF-8"

timedatectl set-ntp true

echo ">>> Particionando disco"
sgdisk --zap-all $DISK
sgdisk -n 1:0:+512M -t 1:ef00 $DISK
sgdisk -n 2:0:0     -t 2:8300 $DISK

echo ">>> Formatando"
mkfs.fat -F32 ${DISK}p1
mkfs.ext4 -F ${DISK}p2

echo ">>> Montando"
mount ${DISK}p2 /mnt
mkdir /mnt/boot
mount ${DISK}p1 /mnt/boot

echo ">>> Instalando base"
pacstrap /mnt base linux linux-firmware nano sudo networkmanager grub efibootmgr
genfstab -U /mnt >> /mnt/etc/fstab

arch-chroot /mnt /bin/bash <<EOF

ln -sf /usr/share/zoneinfo/$TIMEZONE /etc/localtime
hwclock --systohc

sed -i "s/#pt_BR.UTF-8 UTF-8/pt_BR.UTF-8 UTF-8/" /etc/locale.gen
locale-gen
echo "LANG=$LOCALE" > /etc/locale.conf

echo "$HOSTNAME" > /etc/hostname

cat <<EOL > /etc/hosts
127.0.0.1 localhost
::1       localhost
127.0.1.1 $HOSTNAME
EOL

echo "root:$PASSWORD" | chpasswd
useradd -m -G wheel $USERNAME
echo "$USERNAME:$PASSWORD" | chpasswd

sed -i 's/# %wheel ALL=(ALL:ALL) ALL/%wheel ALL=(ALL:ALL) ALL/' /etc/sudoers
systemctl enable NetworkManager

grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=ArchNVMe
grub-mkconfig -o /boot/grub/grub.cfg

EOF

umount -R /mnt
echo "=== FIM — REINICIE ==="