#!/bin/bash
#

# Prep build env
rsync -ahvPS /usr/share/archiso/configs/releng/ temp/
echo 'bc' > temp/packages.both
rm temp/airootfs/etc/systemd/scripts/choose-mirror
rm temp/airootfs/etc/systemd/system/choose-mirror.service
rm temp/airootfs/etc/systemd/system/etc-pacman.d-gnupg.mount
rm temp/airootfs/etc/systemd/system/pacman-init.service
rm temp/airootfs/etc/udev/rules.d/81-dhcpcd.rules
rmdir --ignore-fail-on-non-empty temp/airootfs/etc/udev/rules.d
rmdir --ignore-fail-on-non-empty temp/airootfs/etc/udev
cp mac-dgpu-disable-tool temp/airootfs/root/
printf "\x07\x00\x00\x00\x01\x00\x00\x00" \
    > temp/airootfs/root/gpu-power-prefs-fa4ce28d-b62f-4c99-9cc3-6815686e30f9
chown -R root:root temp

# Adjust boot menus
sed -i 's/timeout 3/timeout 1/' temp/efiboot/loader/loader.conf
sed -i 's/Arch Linux archiso x86_64/Mac dGPU Disable Tool/' temp/efiboot/loader/entries/*

sed -i '/BACKGROUND/d' temp/syslinux/*
echo 'PROMPT 1' >> temp/syslinux/archiso_head.cfg
echo 'TIMEOUT 1' >> temp/syslinux/archiso_head.cfg
echo 'DEFAULT arch64' >> temp/syslinux/archiso_head.cfg
sed -i -r 's/Arch Linux( \(x86_64\)|)( live medium|)/Mac dGPU Disable Tool/' temp/syslinux/*
sed -i '/allows/d' temp/syslinux/*

# Add nomodeset boot option
sed -i -r 's/^(options.*)$/\1 nomodeset/' temp/efiboot/loader/entries/archiso*
sed -i -r 's/^(APPEND arch.*)$/\1 nomodeset/' temp/syslinux/*cfg

# Modify live env
echo '' >> temp/airootfs/etc/motd
sed -i '/mirror/d' temp/airootfs/root/customize_airootfs.sh
sed -i '/usermod/d' temp/airootfs/root/customize_airootfs.sh
sed -i '/ssh/d' temp/airootfs/root/customize_airootfs.sh
echo 'echo "~/mac-dgpu-disable-tool" >> /root/.bashrc' \
    >> temp/airootfs/root/customize_airootfs.sh

temp/build.sh -N dgpu -L DGPU -v