#!/bin/bash

BY_ID=/dev/disk/by-id
DISK1=${BY_ID}/wwn-0x5000c5004fdf987b
DISK2=${BY_ID}/wwn-0x5000c5004fdfcad4

# Pre-clean

sgdisk --zap-all ${DISK1}
sgdisk --zap-all ${DISK2}

# Partitioning

sgdisk -n1:1M:+512M   -t1:EF00 ${DISK1}
sgdisk -n2:0:+512M    -t2:BF01 ${DISK1}
sgdisk -n3:0:0        -t3:BF01 ${DISK1}

sgdisk -n1:+512M:+512M -t1:BF01 ${DISK2}
sgdisk -n2:0:0         -t2:BF01 ${DISK2}

mkfs.vfat ${DISK1}-part1

# Verify

sgdisk --print ${DISK1}
sgdisk --print ${DISK2}

read -p "Are you sure? " -n 1 -r
echo
if [[ ! $REPLY =~ ^[Yy]$ ]]
then
    [[ "$0" = "$BASH_SOURCE" ]] && exit 1 || return 1
fi

# Env

set -x
encryption_options=(-O encryption=on -O keylocation=prompt -O keyformat=passphrase)
bpool_mirror_arg=${DISK2}-part1
rpool_mirror_arg=${DISK2}-part2
#set +x


# Create ZFS pools

rm -rf /mnt/*

zpool create -f \
  "${encryption_options[@]}" \
  -o ashift=12 \
  -O acltype=posixacl \
  -O compression=off \
  -O dnodesize=auto \
  -O relatime=on \
  -O xattr=sa \
  -O normalization=formD \
  -O devices=off \
  -O mountpoint=/ \
  -R /mnt \
  rpool mirror ${DISK1}-part3 ${rpool_mirror_arg}

zfs create -o canmount=noauto -o mountpoint=/ rpool/root

mkdir -p /mnt/boot

zpool create \
  -d -o ashift=12 \
  -O devices=off \
  -O mountpoint=/boot \
  -R /mnt/ \
  bpool mirror ${DISK1}-part2 ${bpool_mirror_arg}

mkdir -p /mnt/boot/efi

mount ${DISK1}-part1 /mnt/boot/efi