#!/bin/bash
SCRIPT_ABS_FILENAME=`LC_ALL=en_US.ISO8859-1 perl -e 'use Cwd "abs_path";print abs_path(shift)' "${BASH_SOURCE[0]}"`
SCRIPT_DIR=`dirname "$SCRIPT_ABS_FILENAME"`

# we can't cd "$SCRIPT_DIR" because the 1st arg maybe a relative path to the current dir (and NOT relative to the SCRIPT_DIR)

OSTYPE=`uname -s`
#echo $OSTYPE

if [ -z "$1" ]
then
  if [ -f "$SCRIPT_DIR"/../Build/Clover/DEBUG_GCC53/X64/CLOVERX64.debug ]
  then
    clover_debug_file="$SCRIPT_DIR"/../Build/Clover/DEBUG_GCC53/X64/CLOVERX64.debug
    echo Using default file "$clover_debug_file"
  else
    echo "Usage: $SCRIPT_ABS_FILENAME [Clover debug file]"
    exit 1
  fi
else
  clover_debug_file="${1%.*}".debug
fi

if ! [ -f "$clover_debug_file" ]
then
  echo Debug file "$clover_debug_file" doesn\'t exist
  exit 1
fi

clover_efi_file="${clover_debug_file%.*}".efi
if ! [ -f "$clover_efi_file" ]
then
  echo Efi file "$clover_efi_file" doesn\'t exist
  exit 1
fi

echo clover_debug_file="$clover_debug_file"
echo clover_efi_file="$clover_efi_file"

qemu_path="$SCRIPT_DIR"/qemu_portable-v4.2.0/qemu-system-x86_64
qemu_path="$SCRIPT_DIR"/qemu_portable-v5.2.0/qemu-system-x86_64
#set -x

if [ "$OSTYPE" = "Darwin" ]
then
  if ! [ -f "$qemu_path" ]
  then
    echo "You must restore the folder \'"$(dirname "$qemu_path")"\'"
    exit 1
  fi
  if ! [ -f "$SCRIPT_DIR"/disk_image_gpt.img ]
  then
    unzip -o "$SCRIPT_DIR"/disk_image_gpt.img.zip -d "$SCRIPT_DIR"
    rm -rf "$SCRIPT_DIR"/__MACOSX
  fi

  if pgrep qemu
  then
    killall qemu-system-x86_64
  fi
  > "$SCRIPT_DIR"/serial0_qemu_out.log # empty file without erasing it. Useful for editor for refreshing and reloading.

  hdiutil attach "$SCRIPT_DIR"/disk_image_gpt.img || exit 1

  shopt -s nocasematch

  if [[ "$(basename "$clover_debug_file")" =~ "CloverX64"* ]]
  then
    echo ditto "${clover_debug_file%.*}".efi /Volumes/QEMU_EFI/EFI/CLOVER/CLOVERX64.efi
    ditto "${clover_debug_file%.*}".efi /Volumes/QEMU_EFI/EFI/CLOVER/CLOVERX64.efi || exit 1

      #no need to replace BootX64.efi, it's not used in legacy boot
  else
    : # TODO : if it's a module, has to be copied in Drivers
  fi

  shopt -u nocasematch

  diskutil eject /Volumes/QEMU_EFI || exit 1
  
  sleep 1 # not 100% sure it's needed
  set -m

  cd "$SCRIPT_DIR"

  bios_file=("$(dirname "$qemu_path")"/bios*)

  "$qemu_path" \
    -L "$(dirname "$qemu_path")" \
    -m 2048 \
    -cpu Penryn \
    -bios "$bios_file" \
    -machine q35 \
    -device ahci,id=ahi \
    -drive format=raw,id=hda,file=./disk_image_gpt.img \
    -usb \
    -device usb-mouse,bus=usb-bus.0,port=2 \
    -device usb-kbd,bus=usb-bus.0,port=1 \
    -serial file:./serial0_qemu_out.log \
    -gdb tcp::9000 &
    [[ $? == 0 ]] || exit 1

  set +m

  count=1
  timeout=60
  image_base_str="CloverX64 : Image base = "

  getImageBase() {
    [ -f ./serial0_qemu_out.log ] || return 1
    grep "$image_base_str" ./serial0_qemu_out.log
    return $?
  }


  while [ $count -le $timeout ] && ! getImageBase
  do
    sleep 1
    count=$((count+1))
  done

  if [ $count -ge $timeout ]
  then
    echo Cannot find "\"Clover : Image base = \"" in ./serial0_qemu_out.log after $timeout seconds
    exit 1
  fi

  adr="$(grep "$image_base_str" ./serial0_qemu_out.log | awk '{printf "0x%x",$NF}')"
  echo adr="$adr"

  GDB=gdb
  if [ -f ../../../toolchain.gdb/gdb ]
  then
    GDB=../../../toolchain.gdb/gdb
  fi

    "$GDB" --eval-command="file "$clover_debug_file" -o $adr" \
      --eval-command="target remote localhost:9000" \
      --eval-command="rwatch *0" \
      --eval-command="br panic_" \
      --eval-command="continue"


  exit 0



fi