#!/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
}

cd $HOME
if [ -d box86 ];then
  echo -n "Box86 already exists on your system. Do you want it overwritten with the latest version? [Y/n] "
  read answer
  if [ ! -z "$answer" ] && [ "$answer" == 'n' ];then
    echo "OK, using your pre-existing version of box86. Be warned though: It may be out of date and may not run Zoom successfully!"
    #don't do anything, don't download & compile box86
    compile=0
  else
    #user confirmed removal
    compile=1
  fi
else
  compile=1
  #box86 does not exist beforehand, so compile
fi

if [ -d "${HOME}/zoom" ];then
  echo -n "${HOME}/zoom already exists on your system. Do you want it overwritten with the latest version? [Y/n] "
  read answer
  if [ ! -z "$answer" ] && [ "$answer" == 'n' ];then
    dlzoom=0
  else
    dlzoom=1
  fi
else
  dlzoom=1
fi

# Get dependencies
cd $HOME
"${DIRECTORY}/pkg-install" "libxcb-xtest0 libxcb-xfixes0 cmake" "$(dirname "$0")" || exit 1

if [ $dlzoom == 1 ];then
  echo "Downloading Zoom..."
  rm -rf "${HOME}/zoom" ~/zoom_i686.tar.xz
  wget 'https://zoom.us/client/latest/zoom_i686.tar.xz' || error 'Failed to download Zoom i686!'
  tar -xf ~/zoom_i686.tar.xz || error 'Failed to extract Zoom i686!'
  rm -f ~/zoom_i686.tar.xz #who cares if this fails
fi

if [ $compile == 1 ];then
  gio trash ~/box86
  git clone https://github.com/ptitSeb/box86 || error 'Failed to clone repository!'
  cd box86 || error 'Failed to enter repository!'
  mkdir build || error 'Failed to make build directory!'
  cd build || error 'Failed to enter build directory!'
  cmake .. -DRPI4=1 -DCMAKE_BUILD_TYPE=RelWithDebInfo || error 'Failed to run cmake!'
  
  echo "Compiling box86..."
  make -j24 || error 'Failed to compile!'
  
  echo "Installing box86 on your system..."
  sudo make install || error 'Failed to run sudo make install!'
  cd $HOME
fi
cd $HOME

echo "Restarting systemd-binfmt service..."
sudo systemctl restart systemd-binfmt #if this fails, no big deal.

if [ ! -f /usr/local/bin/box86 ];then
  error "Box86 should be installed by now, but /usr/local/bin/box86 does not exist!"
fi

cd $HOME

echo "Creating Application Menu button..."
echo "[Desktop Entry]
Name=Zoom
Exec=lxterminal --title 'Close this window to exit Zoom' -e 'box86 zoom;read enter'
Icon=${DIRECTORY}/apps/Zoom/icon-64.png
Path=${HOME}/zoom/
Type=Application
Comment=i386 version of software platform used for teleconferencing using Box86
Categories=Network;" > ~/.local/share/applications/zoom.desktop

echo "Installation complete!"