#!/bin/bash

DIRECTORY="$(dirname "$(dirname "$( cd "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )")")"

function error {
  echo -e "\\e[91m$1\\e[39m"
  exit 1
}

"${DIRECTORY}/pkg-install" "cmake make python3 gcc libc6-dev g++ build-essential" "$(dirname "$0")" || exit 1

rm -rf ~/box64
git clone https://github.com/ptitSeb/box64 || error 'Failed to clone box64 repository!'
cd box64 || error 'Failed to change directory'
mkdir build; cd build; cmake .. -DRPI4ARM64=1 -DCMAKE_BUILD_TYPE=RelWithDebInfo || error 'Failed to run cmake in "build" directory'

#determine how many threads can run without running out of memory
if [ $(($(free -bt | tail -1 | awk '{print $2}')-$(free -bt | tail -1 | awk '{print $3}'))) -le 2000000000 ];then
  #less than 2GB of available ram
  threads=3
else
  #greater than 2GB of available ram
  threads=5
fi
echo "Compiling Box64 with $threads threads..."
make -j${threads} || error 'Failed to compile'
sudo make install || error 'Failed to run "sudo make install"'

if ! sudo systemctl restart systemd-binfmt ;then
  echo "WARNING: systemd-binfmt failed to restart. Running debug..."
  echo 'systemctl status systemd-binfmt.service'
  systemctl status systemd-binfmt.service
  echo 'systemctl status systemd-binfmt.service'
  journalctl -xe | cat
  echo "Exiting this script as successful, but consider sending the above errors to Pi-Apps developers."
fi

exit 0