#! /bin/bash

create_entry() {
	local -n params=$1
	efibootmgr -q -b $bootNumber -B
	efibootmgr -q -b $bootNumber -d "${params[device]}" -p "${params[part]}" -c -L "${params[label]}" -l "${params[loader]}" -u "${params[args]}"
	if [ $bootNumber -ne 0 ]; then bootOrder+=",$bootNumber"; else bootOrder+="0"; fi
	((bootNumber+=1))
}

# must disable KMS for nvidia else X does not start :/

root="root=/dev/mapper/vg1-root rw rootfstype=btrfs rootflags=noatime,compress-force,ssd,space_cache,subvolid=5,subvol=/"
opts="resume=/dev/nvme0n1p2 systemd.unified_cgroup_hierarchy=1 libahci.ignore_sss=1 nmi_watchdog=0 vt.global_cursor_default=0 acpi_osi=\"Windows 2019\" quiet loglevel=3 rd.systemd.show_status=0 rd.udev.log-priority=3 initrd=/intel-ucode.img"

declare -A arch_lts=( ["device"]="/dev/nvme0n1" ["part"]=1 ["label"]="Arch Linux (LTS)" ["loader"]="/vmlinuz-linux-lts" ["args"]="$root $opts elevator=deadline initrd=/initramfs-linux-lts.img")
declare -A arch_lts_native=( ["device"]="/dev/nvme0n1" ["part"]=1 ["label"]="Arch Linux (LTS-native)" ["loader"]="/vmlinuz-linux-lts-native" ["args"]="$root $opts pcie_aspm=force elevator=deadline initrd=/initramfs-linux-lts-native.img")
#~ declare -A win10=( ["device"]="/dev/nvme0n1" ["part"]=2 ["label"]="Windows 10" ["loader"]="\EFI\MICROSOFT\BOOT\BOOTMGFW.EFI" ["args"]="")

declare -a entries

bootOrder=""
bootNumber=0

# order of these commands determines boot order
create_entry arch_lts_native
create_entry arch_lts

efibootmgr -q -D
efibootmgr -q -O
efibootmgr -o $bootOrder