#!/bin/bash

fixname () {
  echo -e "\e[93mTrying to fix icon: \e[39m$3"
  if [ -e "$1" ]; then
 	FILE=$(find $1/$2.*)
	if [ -e "$FILE" ]
  	then
	  filename=$(basename "$FILE")
	  extension="${filename##*.}"
	  filename="${filename%.*}"
	  if [ ! -e "$1/$3.$extension" ]; then
	    echo ""
	    echo -e "\e[93mpath       : \e[39m$1"
	    echo -e "\e[93mfilename   : \e[39m$filename"
	    echo -e "\e[93mextension  : \e[39m$extension"
	    echo " "
	    echo -e "\e[93mlinking to : \e[39m$3.$extension"
	    echo " "

	    sudo ln -s $FILE $1/$3.$extension

	    echo -e "\e[92mSuccessfully fixed icon for \e[39m$3"
            echo "----"
	  else
	    echo -e "\e[92mIcon allready fixed!!!\e[39m"
            echo "----"
          fi
	else
          echo " "
	  echo -e "\e[91mNo icon found for: \e[39m$3"
          echo -e "\e[93mWill try the parent themes (if any)...\e[39m"
          echo " "
        fi

  else
       echo " "
       echo -e "\e[91mThis theme does not have App-icons\e[39m"
       echo -e "\e[93mWill try the parent themes (if any)...\e[39m"
       echo " "
  fi
} 

fixfolder () {
echo "----"
echo -e "\e[92mTrying to fix the theme:\e[39m $2"
echo " "

grep -Pzo "\[.*\][^ ]Context=Applications" $1 | grep -Pzo "\[.*\]" > ~/.temp-icon-list

sed -i 's/\x0//g' ~/.temp-icon-list

LIST=$(cat ~/.temp-icon-list)

rm ~/.temp-icon-list

for p in $LIST
do
    FOLDERS=$(echo $p | perl -pe 's/\[(.*)\]/$1/g')

    ICONPATH="/usr/share/icons/${2}/${FOLDERS}"

    fixname $ICONPATH gnome-photos org.gnome.Photos
    fixname $ICONPATH gnome-books org.gnome.Books
    fixname $ICONPATH cheese org.gnome.Cheese
    fixname $ICONPATH gnome-documents org.gnome.Documents
    fixname $ICONPATH nautilus org.gnome.Nautilus
    fixname $ICONPATH gnome-calendar org.gnome.Calendar
    fixname $ICONPATH addressbook org.gnome.Contacts
    fixname $ICONPATH gnome-maps org.gnome.Maps
    fixname $ICONPATH org.gnome.Weather.Application org.gnome.Weather
    fixname $ICONPATH totem org.gnome.Totem
    fixname $ICONPATH builder org.gnome.Builder
    fixname $ICONPATH gnome-clocks org.gnome.clocks
    fixname $ICONPATH polari org.gnome.Polari
    fixname $ICONPATH gnome-software org.gnome.Software
    fixname $ICONPATH task org.gnome.Todo

    sudo gtk-update-icon-cache -f "/usr/share/icons/${2}/"
done

}

# Display a notification with an icon
THEME=$(gsettings get org.gnome.desktop.interface icon-theme | tr -d "'")

INDEX="/usr/share/icons/${THEME}/index.theme"

fixfolder $INDEX $THEME

INHERITS=$(cat "$INDEX" | grep "Inherits=")

if [[ !  -z  $INHERITS  ]]; then
    echo "----"
    echo -e "\e[92mTrying the parent themes...\e[39m"
    echo " "
    THEMELIST=$( echo $INHERITS | perl -pe 's/Inherits=//g' | perl -pe 's/,/\n/g' )
    for t in $THEMELIST
    do
	case "$t" in
		Adwaita)
		    break
		    ;;
		*)
		    INDEX="/usr/share/icons/${t}/index.theme"
        	    if [ -e "$INDEX" ]
  		    then
        	        fixfolder $INDEX $t
		    else
			echo -e " "
			echo -e "\e[91mMissing icon-theme:  \e[39m$t"
			echo -e "\e[93mYou should really install it "
			echo -e "beacuse your theme inherits icons from it!\e[39m"
			echo -e " "
		    fi
		    ;;
        esac
    done
fi