#!/bin/sh
set -e

# Tag to allow some debhelper commands to inject relevant code
#DEBHELPER#

if [ "$1" = "remove" ] || [ "$1" = "deconfigure" ]; then
    # Remove background alternatives for theme packages
    while read theme filename; do
        update-alternatives --remove \
            desktop-background \
            /usr/share/desktop-base/$theme-theme/wallpaper/contents/images/$filename
    done << EOF
softwaves 1024x768.svg
softwaves 1280x720.svg
softwaves 1280x800.svg
softwaves 1280x1024.svg
softwaves 1600x1200.svg
softwaves 1920x1080.svg
softwaves 1920x1200.svg
softwaves 2560x1440.svg
softwaves 2560x1600.svg
lines 1280x1024.svg
lines 1600x1200.svg
lines 1920x1080.svg
lines 1920x1200.svg
lines 2560x1080.svg
joy 1280x720.svg
joy 1280x1024.svg
joy 1600x1200.svg
joy 1920x1080.svg
joy 1920x1200.svg
joy-inksplat 1280x720.svg
joy-inksplat 1280x1024.svg
joy-inksplat 1600x1200.svg
joy-inksplat 1920x1080.svg
joy-inksplat 1920x1200.svg
spacefun 1280x720.svg
spacefun 1280x1024.svg
spacefun 1920x1080.svg
spacefun 1920x1200.svg
EOF
    # *Last* remove background *highest priority* alternatives for active theme
    update-alternatives --remove desktop-background /usr/share/desktop-base/active-theme/wallpaper/contents/images/1920x1080.svg

    # Remove desktop-background.xml alternatives
    # For theme packages
    while read theme; do
        update-alternatives --remove \
            desktop-background.xml \
            /usr/share/desktop-base/$theme-theme/wallpaper/gnome-background.xml
    done << EOF
softwaves
lines
joy
joy-inksplat
spacefun
EOF
    # *Lastly* remove *highest priority* alternative for active theme
    update-alternatives --remove \
        desktop-background.xml \
        /usr/share/desktop-base/active-theme/wallpaper/gnome-background.xml

    # Remove desktop-lockscreen.xml alternatives
    # For theme packages
    while read theme; do
        update-alternatives --remove \
            desktop-lockscreen.xml \
            /usr/share/desktop-base/$theme-theme/lockscreen/gnome-background.xml
    done << EOF
softwaves
lines
joy
spacefun
EOF
    # *Last* remove *highest priority* alternative for active theme
    update-alternatives --remove \
        desktop-lockscreen.xml \
        /usr/share/desktop-base/active-theme/lockscreen/gnome-background.xml

    # Remove Plasma 5/KDE wallpaper alternatives
    # For theme packages
    while read theme; do
        update-alternatives --remove \
            desktop-plasma5-wallpaper \
            /usr/share/desktop-base/$theme-theme/wallpaper
    done << EOF
softwaves
lines
joy
joy-inksplat
spacefun
EOF
    # *Last* remove *highest priority* alternative for active theme
    update-alternatives --remove \
        desktop-plasma5-wallpaper \
        /usr/share/desktop-base/active-theme/wallpaper

    # Remove login theme alternatives
    # For theme packages
    # Alternative for theme packages
    while read theme background; do
        update-alternatives --remove \
            desktop-login-background \
            /usr/share/desktop-base/$theme-theme/login/$background
    done << EOF
softwaves background.svg
lines background.svg
lines background-nologo.svg
joy background.svg
spacefun background.svg
EOF
    # *Last* remove *highest priority* alternative for active theme
    update-alternatives --remove \
        desktop-login-background \
        /usr/share/desktop-base/active-theme/login/background.svg

    # Remove GRUB background alternatives
#    while read theme ratio; do
#        update-alternatives --remove \
#            desktop-grub \
#            /usr/share/desktop-base/$theme-theme/grub/grub-$ratio.png
#    done << EOF
#softwaves 4x3
#softwaves 16x9
#lines 4x3
#lines 16x9
#joy 4x3
#joy 16x9
#spacefun 4x3
#spacefun 16x9
#EOF
#    ## *Lastly* remove *highest priority* alternative
#    num_grub_efi_installed=$(dpkg-query --list "grub-efi*" 2> /dev/null | grep "^i" | wc -l)
#    if [ $num_grub_efi_installed -gt 0 ] ; then
#        remove_first_ratio=4x3
#        remove_last_ratio=16x9
#    else
#        remove_first_ratio=16x9
#        remove_last_ratio=4x3
#    fi
#    update-alternatives --remove \
#        desktop-grub.sh \
#        /usr/share/desktop-base/active-theme/grub/grub_background.sh
#    update-alternatives --remove \
#        desktop-grub \
#        /usr/share/desktop-base/active-theme/grub/grub-$remove_first_ratio.png
#    update-alternatives --remove \
#        desktop-grub \
#        /usr/share/desktop-base/active-theme/grub/grub-$remove_last_ratio.png


    # Remove theme package alternatives
    while read theme; do
        update-alternatives --remove \
            desktop-theme \
            /usr/share/desktop-base/$theme-theme
    done << EOF
lines
joy
joy-inksplat
spacefun
EOF
    ## *Lastly* remove *highest priority* alternative
    update-alternatives --remove \
        desktop-theme \
        /usr/share/desktop-base/softwaves-theme

fi
