#!/bin/bash

set -e

if [ $# -eq 0 ]; then
  echo "Usage: omarchy-iso-boot [release/omarchy.iso] [reuse]"
  echo "  SSH available at: ssh -p 2222 root@localhost (after installing openssh)"
  exit 1
fi

if ! pacman -Q qemu-full >/dev/null || ! pacman -Q edk2-ovmf >/dev/null; then
  sudo pacman -S --noconfirm --needed --quiet qemu-full edk2-ovmf
fi

DISK="/tmp/omarchy-iso-boot.qcow2"
if [[ ! -f $DISK || $2 != "reuse" ]]; then
  qemu-img create -f qcow2 "$DISK" 20G
  cp /usr/share/edk2/x64/OVMF_VARS.4m.fd /tmp/OVMF_VARS.4m.fd
fi

# Boot from ISO before we've installed, then boot from drive after
qemu-system-x86_64 \
  -cpu host -enable-kvm -machine q35,accel=kvm \
  -smp "$(nproc)" \
  -m 8192 \
  -drive if=pflash,format=raw,readonly=on,file=/usr/share/edk2/x64/OVMF_CODE.4m.fd \
  -drive if=pflash,format=raw,file=/tmp/OVMF_VARS.4m.fd \
  -drive file="$DISK",format=qcow2,if=none,id=drive0 \
  -device virtio-blk-pci,drive=drive0,bootindex=1 \
  -drive file="$1",media=cdrom,if=none,format=raw,id=cdrom0 \
  -device ide-cd,drive=cdrom0,bootindex=2 \
  -device virtio-vga-gl \
  -display gtk,gl=on \
  -usb -device usb-tablet \
  -netdev user,id=net0,hostfwd=tcp::2222-:22 \
  -device virtio-net-pci,netdev=net0 \
  -boot menu=on