#!/bin/bash
while read -r line; do

	case "$line" in
		# When the system theme has been changed
		'set: /Net/ThemeName')
			# Get the current system theme
			theme=$(xfconf-query -c xsettings -p /Net/ThemeName)
			# Find the best match for the xfwm4 theme that corresponds with the current system theme
			xfwm4_theme=$(find /usr/share/themes/ /usr/local/share/themes/ "$HOME"/.themes/ "$HOME"/.local/share/themes/ -mindepth 2 -maxdepth 2 -type d -name xfwm4 -printf '%h\n' 2>/dev/null | grep -o "/${theme}[^/]*$" | sort | head -n1)
			# If a match is not found then use the Default theme
			[ -z "$xfwm4_theme" ] && xfwm4_theme='Default'
			# Apply the xfwm4 theme
			xfconf-query -c xfwm4 -p /general/theme -n -t string -s "${xfwm4_theme#/}"
			# Apply the current theme with gsettings
			gsettings set org.gnome.desktop.interface gtk-theme "$theme"
			;;
		# When the icon theme has been changed
		'set: /Net/IconThemeName')
			# Get the current icon theme
			icon_theme=$(xfconf-query -c xsettings -p /Net/IconThemeName)
			# Apply the same theme in qt5ct and qt6ct configuration
			for file in "$HOME"/.config/qt5ct/qt5ct.conf "$HOME"/.config/qt6ct/qt6ct.conf; do
				if [ -f "$file" ]; then
					sed -i "s/^icon_theme=.*$/icon_theme=$icon_theme/" "$file"
				else
					printf '[Appearance]\nicon_theme=%s\nstyle=gtk2\n' "$icon_theme" > "$file"
				fi
			done
			;;
		# When the system font has been changed
		'set: /Gtk/FontName')
			# Get the current system font
			font=$(xfconf-query -c xsettings -p /Gtk/FontName)
			# Apply the same font for the title of xfce windows
			xfconf-query -c xfwm4 -p /general/title_font -n -t string -s "$font"
			;;
	esac

done < <(xfconf-query -c xsettings -m)