#!/bin/bash

if [[ -z "$1" ]]; then
  echo "Usage: omarchy-launch <image.iso>"
  exit 1
fi

if ! command -v qemu-system-x86 >/dev/null; then
  sudo pacman -S --noconfirm --needed qemu-system-x86 qemu-img
fi

# Setup storage
if [[ ! -f "/tmp/test.qcow2" ]]; then
  qemu-img create -f qcow2 /tmp/test.qcow2 20G
  qemu-img create -f qcow2 /tmp/test_large.qcow2 20G
fi

# Start iso
qemu-system-x86_64 \
  -cpu host \
  -enable-kvm \
  -machine q35,accel=kvm \
  -device VGA,edid=on,xres=1280,yres=720 \
  -device intel-iommu \
  -m 8192 \
  -drive if=pflash,format=raw,readonly=on,file=/usr/share/ovmf/x64/OVMF_CODE.4m.fd \
  -drive if=pflash,format=raw,readonly=on,file=/usr/share/ovmf/x64/OVMF_VARS.4m.fd \
  -device virtio-scsi-pci,bus=pcie.0,id=scsi0,addr=0x8 \
  -device scsi-hd,drive=libvirt-0-format,bus=scsi0.0,id=scsi0-0-0-0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi0-0-0-0,bootindex=2,write-cache=on \
  -blockdev '{"driver":"file","filename":"/tmp/test.qcow2","aio":"threads","node-name":"libvirt-0-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
  -blockdev '{"node-name":"libvirt-0-format","read-only":false,"discard":"unmap","cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-0-storage","backing":null}' \
  -device virtio-scsi-pci,bus=pcie.0,id=scsi1,addr=0x9 \
  -device scsi-hd,drive=libvirt-1-format,bus=scsi1.0,id=scsi1-0-0-0,channel=0,scsi-id=0,lun=0,device_id=drive-scsi1-0-0-0,bootindex=3,write-cache=on \
  -blockdev '{"driver":"file","filename":"/tmp/test_large.qcow2","aio":"threads","node-name":"libvirt-1-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}' \
  -blockdev '{"node-name":"libvirt-1-format","read-only":false,"discard":"unmap","cache":{"direct":true,"no-flush":false},"driver":"qcow2","file":"libvirt-1-storage","backing":null}' \
  -device virtio-scsi-pci,bus=pcie.0,id=scsi2 \
  -device scsi-cd,drive=cdrom0,bus=scsi2.0,bootindex=1 \
  -drive "file=$1,media=cdrom,if=none,format=raw,cache=none,id=cdrom0" \
  -device virtio-vga,virgl=on \
  -usb -device usb-tablet \
  -display gtk,gl=on,zoom-to-fit=on \
  -vnc none