#!/bin/bash

# Install booter on physical disk.

cd "$(dirname "$0")" || exit 1

if [ ! -f boot ] || [ ! -f boot0 ] || [ ! -f boot1f32 ]; then
  echo "Boot files are missing from this package!"
  echo "You probably forgot to build DuetPkg first."
  exit 1
fi

diskutil list
echo "Enter disk number to install to:"
read -r N

if [[ ! $(diskutil info disk"${N}" |  sed -n 's/.*Device Node: *//p') ]]
then
  echo Disk "$N" not found
  exit 1
fi

FS=$(diskutil info disk"${N}"s1 | sed -n 's/.*File System Personality: *//p')
echo "$FS"

if [ "$FS" != "MS-DOS FAT32" ]
then
  echo "No FAT32 partition to install"
  exit 1
fi

# Write MBR
sudo fdisk -f boot0 -u /dev/rdisk"${N}"

diskutil umount disk"${N}"s1
sudo dd if=/dev/rdisk"${N}"s1 count=1  of=origbs
cp -v boot1f32 newbs
sudo dd if=origbs of=newbs skip=3 seek=3 bs=1 count=87 conv=notrunc
dd if=/dev/random of=newbs skip=496 seek=496 bs=1 count=14 conv=notrunc
sudo dd if=newbs of=/dev/rdisk"${N}"s1
diskutil mount disk"${N}"s1

cp -v boot "$(diskutil info  disk"${N}"s1 |  sed -n 's/.*Mount Point: *//p')"

if [ "$(diskutil info  disk"${N}" |  sed -n 's/.*Content (IOContent): *//p')" == "FDisk_partition_scheme" ]
then
sudo fdisk -e /dev/rdisk"$N" <<-MAKEACTIVE
p
f 1
w
y
q
MAKEACTIVE
fi