#!/bin/bash

# install base packages for displaying qtvcp screens and sounds
echo -e '\ninstalling common base packages'
sudo apt-get install -y gstreamer1.0-tools espeak espeak-ng sound-theme-freedesktop

echo -e '\ninstalling base packages for python3'
sudo apt-get install -y python3-opengl python3-pyqt5 python3-pyqt5.qsci python3-pyqt5.qtsvg python3-pyqt5.qtopengl python3-opencv python3-dbus python3-dbus.mainloop.pyqt5 python3-espeak python3-pyqt5.qtwebkit python3-xlib python3-numpy python3-cairo python3-gi-cairo

# prompt to install designer
while true; do
#    clear
    echo -e '\nDo you wish to install Qt Designer for creating or modifying a GUI'
    echo ' 1 = No, exit'
    echo ' 2 = Yes, for a Run In Place installation'
    echo ' 3 = Yes, for a package installation'
    read -p $'\nSelection? ' response
    case $response in
        [1]* )  echo -e '\nInstallation complete, QtVCP screens are now available.\n'
                exit;;
        [2]* )  break;;
        [3]* )  break;;
           * )  echo -e '\nInstallation complete, QtVCP screens are now available.\n'
                exit;;
    esac
done

# install tools
#clear
echo -e '\ninstalling common tools'
sudo apt-get install -y qttools5-dev qttools5-dev-tools

echo -e '\ninstalling python3 tools'
sudo apt-get install -y libpython3-dev pyqt5-dev-tools

# get the correct plugin file to copy
# for run in place LinuxCNC installation
if [ $response -eq 2 ]; then
    if [ -f ~/linuxcnc-dev/lib/python/qtvcp/plugins/qtvcp_plugin.py ]; then
        pifile=~/linuxcnc-dev/lib/python/qtvcp/plugins/qtvcp_plugin.py
    else
        while true; do
#            clear
            echo -e '\nrun in place installation not found'
            echo 'Enter base directory name e.g. linuxcnc-2.9'
            echo 'X to exit'
            read -p $'\nDirectory? ' basedir
            case $basedir in
                [Xx]* ) clear
                        exit;;
                    * ) if [  -f ~/$basedir/lib/python/qtvcp/plugins/qtvcp_plugin.py ]; then
                            pifile=~/$basedir/lib/python/qtvcp/plugins/qtvcp_plugin.py
                            break
                        fi
                        ;;
            esac
        done
    fi
# for full LinuxCNC installation
elif [ $response -eq 3 ]; then
    # check for valid plugin file
    if [ -f /usr/lib/python3/dist-packages/qtvcp/plugins/qtvcp_plugin.py ]; then
        pifile=/usr/lib/python3/dist-packages/qtvcp/plugins/qtvcp_plugin.py
    else
#        clear
        echo -e '\n'$pifile 'not found in /usr/lib/python3/dist-packages/qtvcp/plugins/'
        echo -e '\ncannot continue designer installation\n'
        exit
    fi
fi

# create users plugin directory
mkdir -p ~/.designer/plugins/python

# link to plugins
if [ -f ~/.designer/plugins/python/qtvcp_plugin.py ]; then
    sudo rm ~/.designer/plugins/python/qtvcp_plugin.py
fi
echo -e '\ncreate plugin link at:\n~/.designer/plugins/python/\n'
ln -s $pifile ~/.designer/plugins/python/

sopath=/usr/lib/x86_64-linux-gnu/qt5/plugins/designer/
p2sofile=libpyqt5_py2.so
p3sofile=libpyqt5.so

# ensure we have a python3 .so file
if [ ! -f $sopath/$p3sofile ]; then
    # check if we have a python3 .so backup file from a python2 installation
    if [ -f $sopath/$p3sofile.old ]; then
        echo -e '\nrename libpyqt5.so.old file to libpyqt5.so'
        sudo mv $sopath/$p3sofile.old $sopath/$p3sofile
    # otherwise report an error
    else
        echo -e '\nlibpyqt5.so is missing from:'
        echo -e '/usr/lib/x86_64-linux-gnu/qt5/plugins/designer/'
        echo -e '\ndesigner installation aborted...\n'
        exit
    fi
fi

# remove python2 .so file if it exists
if [ -f $sopath/$p2sofile ]; then
    echo -e '\nremove python2 .so file'
    sudo rm $sopath/$p2sofile
fi

#clear
echo -e '\nInstallation complete, designer can be started with:'
echo -e '\ndesigner -qt=5\n'
if [ $response -eq 1 ]; then
    echo -e 'After setting the rip-environment\n'
fi
