#!/usr/bin/env bash

MY_OPTIONS="+ssse3,+sse4.2,+popcnt,+avx,+aes,+xsave,+xsaveopt,check"

ALLOCATED_RAM="8192" # MiB
CPU_SOCKETS="1"
CPU_CORES="2"
CPU_THREADS="4"

REPO_PATH=$(dirname "$(readlink -f "$0")")
OVMF_DIR="."

args=(
  -enable-kvm -m "$ALLOCATED_RAM"

  # Set the CPU model and options
  # Use Haswell-noTSX for Sonoma and Penryn for older versions
  -cpu Haswell-noTSX,kvm=on,vendor=GenuineIntel,+invtsc,vmware-cpuid-freq=on,"$MY_OPTIONS"

  -machine q35
  -device qemu-xhci,id=xhci
  -device usb-kbd,bus=xhci.0 -device usb-tablet,bus=xhci.0
  -smp "$CPU_THREADS",cores="$CPU_CORES",sockets="$CPU_SOCKETS"
  -device usb-ehci,id=ehci
  -device isa-applesmc,osk="ourhardworkbythesewordsguardedpleasedontsteal(c)AppleComputerInc"
  -drive if=pflash,format=raw,readonly=on,file="$REPO_PATH/$OVMF_DIR/OVMF_CODE.fd"
  -drive if=pflash,format=raw,file="$REPO_PATH/$OVMF_DIR/OVMF_VARS-1920x1080.fd"
  -smbios type=2
  -device ich9-intel-hda -device hda-duplex
  -device ich9-ahci,id=sata
  
  # Add the OpenCore bootloader drive with boot priority 
  -drive id=OpenCoreBoot,if=none,snapshot=on,format=qcow2,file="$REPO_PATH/OpenCore/OpenCore.qcow2"
  -device ide-hd,bus=sata.2,drive=OpenCoreBoot,bootindex=1

  # Add the macOS hard drive
  -drive id=MacHDD,if=none,file="$REPO_PATH/mac_hdd_ng.img",format=qcow2
  -device ide-hd,bus=sata.4,drive=MacHDD

  # Configure network with port forwarding for SSH access
  -netdev user,id=net0,hostfwd=tcp::2222-:22
  -device virtio-net-pci,netdev=net0,id=net0,mac=52:54:00:c9:18:27

  # Disable the QEMU monitor interface and graphical output
  # Comment out the following lines if you want to enable conectivity to the VM via VNC
  -monitor none
  -nographic

  # Uncomment the following lines if you want to enable conectivity to the VM via VNC
  # -monitor stdio
  # -device vmware-svga
  # -display none
  # -vnc 0.0.0.0:1,password=on -k en-us
)

# Create log file for headless boot and clear it if it already exists
touch "$REPO_PATH/headless_boot_log.txt"
echo "" > "$REPO_PATH/headless_boot_log.txt"

# Start the QEMU virtual machine and redirect the output to the log file
qemu-system-x86_64 "${args[@]}" > "$REPO_PATH/headless_boot_log.txt" 2>&1 &