#! /bin/env bash

# assume that /mnt and /mnt/boot is mounted

TARGET=/mnt
DEVICE=$(findmnt -n -o SOURCE $TARGET | sed 's/\[.*//')
UUID=$(blkid -s UUID -o value ${DEVICE})
echo $UUID
echo $DEVICE

debootstrap stable $TARGET http://deb.debian.org/debian/

genfstab -U $TARGET >>/mnt/etc/fstab

mount -t proc /proc $TARGET/proc
mount -t sysfs /sys $TARGET/sys
mount --bind /dev $TARGET/dev
mount -t devpts /dev/pts $TARGET/dev/pts
mount --bind /sys/firmware/efi/efivars $TARGET/sys/firmware/efi/efivars

echo "deb http://deb.debian.org/debian stable main non-free-firmware" >$TARGET/etc/apt/sources.list
echo "export PATH=$PATH:/sbin/" >>$TARGET/root/.bashrc

cp ./chroot-commands.sh $TARGET/root/
chmod +x $TARGET/root/chroot-commands.sh
chroot $TARGET /bin/bash -l -c '/root/chroot-commands.sh'

# fix systemd-boot
for ENTRY in $TARGET/boot/loader/entries/*.conf; do
	sed -i "s/root=UUID=[a-zA-Z0-9-]*/root=UUID=${UUID}/" "${ENTRY}"
done

echo "Done! Should be good to reboot now and run post-install scripts."