#!/bin/bash
#
# Script Name: uninstall_ubuntu24.04.sh
# Version : 1.0
# Description: Uninstallation script for reverting the changes made by install_ubuntu24.04.sh
# GNOME 46 Look Like macOS on Ubuntu 24.04
#
# For Linux : Ubuntu 24.04
# For Desktop Environment : GNOME Shell 46
# Author: linuxscoop
# Youtube: https://youtube.com/user/linuxscoop
# Created: May 25, 2024
# Last Modified: June 07, 2024
#
# Remove Firefox installed from Mozilla PPA and its configurations
remove_firefox_from_mozilla_ppa() {
    sudo apt remove --purge -y firefox
    sudo rm /etc/apt/apt.conf.d/51unattended-upgrades-firefox
    sudo rm /etc/apt/preferences.d/mozillateamppa
    sudo add-apt-repository --remove ppa:mozillateam/ppa -y
}

# Reinstall snap and common snap apps
reinstall_snap_and_apps() {
    clear
    echo "Reinstalling snap and common snap apps..."
    sudo rm /etc/apt/preferences.d/nosnap.pref
    sudo apt update
    sudo apt install snapd -y
    sudo snap install core22
    sudo snap install firefox
    sudo snap install snap-store
    sudo snap install gnome-42-2204
    sudo snap install gtk-common-themes
    sudo snap install snapd-desktop-integration
    sudo snap install firmware-updater
}

# Uninstall GNOME Apps and Dependencies
uninstall_gnome_apps() {
    sudo apt remove --purge -y gnome-weather \
                 gnome-maps \
                 gnome-audio \
                 gnome-calendar \
                 gnome-clocks \
                 gnome-connections \
                 gnome-console \
                 gnome-contacts \
                 gnome-music \
                 vlc \
                 gnome-shell-pomodoro
}

# Uninstall WhiteSur GTK theme
uninstall_whitesur_gtk_theme() {
    rm -rf $HOME/.themes/WhiteSur*
    rm -rf $HOME/.config/gtk-4.0/*.*
}

# Uninstall WhiteSur icon theme
uninstall_whitesur_icon_theme() {
    rm -rf $HOME/.icons/WhiteSur*
}

# Uninstall WhiteSur Firefox Theme
uninstall_whitesur_firefox_theme() {
    cd src/WhiteSur-gtk-theme
    ./install.sh -r
    cd ../../
}

# Remove Cursors theme
remove_cursors_theme() {
    rm -rf $HOME/.icons/WhiteSur-cursors
}

# Remove Fonts and Wallpapers
remove_fonts_and_wallpapers() {
    rm -rf $HOME/.local/share/fonts/*
    sudo rm -rf /usr/share/backgrounds/macosw
}

# Remove GNOME Shell Extensions
remove_gnome_shell_extensions() {
    rm -rf $HOME/.local/share/gnome-shell/extensions/*
}

# Uninstall Cava, Neofetch and their configurations
uninstall_cava_neofetch() {
    sudo apt remove --no-install-recommends neofetch cava -y
    rm -rf $HOME/.config/cava
    rm -rf $HOME//.config/neofetch
}

# Remove Oh My Zsh and revert to bash
uninstall_zsh_oh_my_zsh() {
    sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/uninstall.sh)"
    rm -r $HOME/.p10k.zsh
    sudo apt remove --no-install-recommends zsh -y
    sudo chsh -s /bin/bash "$USER"
}

remove_flatpak_apps() {
    clear
    echo "Uninstall Flatpak Applications.."
    flatpak uninstall --delete-data io.bassi.Amberol
    # Clean up any unused libraries
    flatpak uninstall --unused
}

# Disable Flatpak, Appimage Support and remove Flathub Repository
disable_flatpak_and_appimage_support() {
    sudo apt remove --purge -y gnome-software-plugin-flatpak flatpak libfuse2
    sudo rm -rf /var/lib/flatpak
}

# Uninstall Plymouth macOS theme
uninstall_plymouth_macos_theme() {
    sudo rm -rf /usr/share/plymouth/themes/macOS
    sudo update-alternatives --remove default.plymouth /usr/share/plymouth/themes/macOS/macOS.plymouth
    sudo update-alternatives --install /usr/share/plymouth/themes/default.plymouth default.plymouth /usr/share/plymouth/themes/bgrt/bgrt.plymouth 110
    sudo update-alternatives --config default.plymouth
    sudo update-initramfs -u
}

# Restore GNOME Shell Configuration to default
restore_default_gnome_shell_configuration() {
    dconf reset -f /
}

# Clean up
cleanup() {
    sudo apt autoremove -y
    sudo apt clean
}

# Execute all uninstallation steps
reinstall_snap_and_apps
remove_firefox_from_mozilla_ppa
uninstall_apps_and_dependencies
uninstall_whitesur_gtk_theme
uninstall_whitesur_icon_theme
uninstall_whitesur_firefox_theme
remove_cursors_theme
remove_gnome_shell_extensions
uninstall_cava_neofetch
uninstall_zsh_oh_my_zsh
uninstall_powerlevel10k_theme
disable_flatpak_and_appimage_support
uninstall_plymouth_macos_theme
remove_fonts_and_wallpapers
restore_default_gnome_shell_configuration
cleanup

clear

echo "Uninstallation completed successfully. Please logout and log back in for changes to take effect."
read -p "Do you want to logout now? (y/n): " choice

if [[ "$choice" == "y" ]]; then
    gnome-session-quit --logout
    echo "Logging out. Please log back in for changes to take effect."
else
    echo "No changes made. You can manually logout and log back in later."
fi