#!/bin/bash

set -e

echo "=== Checking EFI directories ==="
ls /boot/efi/EFI || { echo "EFI partition not mounted!"; exit 1; }

echo "EFI entries found:"
ls /boot/efi/EFI/

echo "=== Reinstalling GRUB to EFI partition ==="
sudo grub-install --target=x86_64-efi --efi-directory=/boot/efi --bootloader-id=Debian

echo "=== Updating GRUB ==="
sudo update-grub

echo "=== Fixing boot order (setting Debian to first) ==="
# Find Debian boot entry number
DEBIAN_BOOTNUM=$(sudo efibootmgr | grep -i debian | grep -oP 'Boot\K[0-9A-Fa-f]{4}')

if [ -z "$DEBIAN_BOOTNUM" ]; then
    echo "Error: Could not find Debian entry in efibootmgr!"
    sudo efibootmgr
    exit 1
fi

echo "Found Debian entry: Boot$DEBIAN_BOOTNUM"
echo "Setting Debian as first boot option..."

sudo efibootmgr -o $DEBIAN_BOOTNUM

echo "=== Done! ==="
echo "Reboot your system and GRUB should load first."