flatpak

#!/usr/bin/env bash

# Define some color variables
GOLD='\033[1m\033[38;2;255;215;0m'
PEACH='\e[1;38;2;255;204;153m'
GREEN='\033[1m\033[38;2;0;255;0m'
RED='\033[1m\033[38;5;196m'
AQUA='\e[1;38;2;0;255;255m'
NC='\033[0m' # No Color

# Function to display a menu with options
display_menu() {
    # Show heading in middle
    clear
    echo ""
    COLUMNS=$(tput cols)
    t1="====================="
    t2="Flatpak App Manager"
    printf "${GOLD}%*s\n${NC}" $(((${#t1} + $COLUMNS) / 2)) "$t1"
    printf "${GOLD}%*s\n${NC}" $(((${#t2} + $COLUMNS) / 2)) "$t2"
    printf "${GOLD}%*s\n${NC}" $(((${#t1} + $COLUMNS) / 2)) "$t1"
    echo ""
    echo -e "${PEACH}Select Your Choice:${NC}"
    echo " 1. Flatpak Installer/Uninstaller"
    echo " 2. Add FlatHub Repository"
    echo " 3. List All Apps Including Runtimes"
    echo " 4. List User Installed Apps"
    echo " 5. Update All Apps"
    echo " 6. Search & Install App"
    echo " 7. Uninstall App"
    echo " 8. Downgrade App"
    echo " 9. Delete Unused Runtime & Flatpak Cache"
    echo "10. Manage Permissions"
    echo "11. Go Back To Main Menu"
    echo ""
    echo -n "Enter your choice: "
}

# Function to install or uninstall flatpak system in a distro
setup_flatpak() {
    echo ""
    # Check if flatpak is already installed using command -v
    if command -v flatpak >/dev/null; then
        echo -e "${AQUA}Flatpak is already installed.${NC}"
        sleep 1
        # Ask the user if they want to uninstall flatpak
        read -rp "Do you want to uninstall flatpak including all flatpak apps? (Y/n): " choice
        case $choice in
        [yY]*)
            # If yes, then use the appropriate command for the package manager
            echo ""
            echo -e "${AQUA}NOTE: After completing the uninstallation process, don't forget to restart your machine.${NC}"
            echo ""
            sleep 3
            echo -e "${RED}Uninstalling flatpak...${NC}"
            flatpak uninstall --unused
            flatpak uninstall --all
            sleep 1
            if command -v apt >/dev/null; then
                sudo apt remove --purge flatpak -y
            elif command -v dnf >/dev/null; then
                sudo dnf remove flatpak -y
            elif command -v yum >/dev/null; then
                sudo yum remove flatpak -y
            elif command -v zypper >/dev/null; then
                sudo zypper remove flatpak
            elif command -v pacman >/dev/null; then
                sudo pacman -R flatpak
            else
                # For other package managers, show an error message
                echo -e "${AQUA}Sorry, I don't know how to uninstall flatpak on your system.${NC}"
            fi
            ;;
        [nN]*)
            # If no, then do nothing and exit the function
            echo -e "${AQUA}OK, keeping flatpak.${NC}"
            ;;
        *)
            # If invalid input, show an error message and exit the function
            echo -e "${RED}Invalid input. Please enter y or n.${NC}"
            ;;
        esac
    else
        # If flatpak is not installed
        echo -e "${AQUA}Flatpak is not installed.${NC}"
        sleep 1
        # Ask the user if they want to install flatpak
        read -rp "Do you want to install flatpak? (Y/n): " choice
        case $choice in
        [yY]*)
            echo -e "${GREEN}Installing flatpak...${NC}"
            sleep 1
            if command -v apt >/dev/null; then
                sudo apt update && sudo apt install flatpak -y
            elif command -v dnf >/dev/null; then
                sudo dnf install flatpak -y
            elif command -v yum >/dev/null; then
                sudo yum install epel-release -y && sudo yum install flatpak -y
            elif command -v zypper >/dev/null; then
                sudo zypper install flatpak
            elif command -v pacman >/dev/null; then
                sudo pacman -S flatpak
            else
                # For other package managers, show an error message and exit the function
                echo -e "${AQUA}Sorry, I don't know how to install flatpak on your system.${NC}"
            fi

            # Add flathub repo
            echo -e "${GREEN}Adding flathub repo...${NC}"
            sleep 1
            flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

            echo ""
            echo -e "${AQUA}NOTE: To complete the installation, restart your machine.${NC}"
            echo ""
            sleep 3
            ;;
        [nN]*)
            # If no, then do nothing and exit the function
            echo -e "${AQUA}OK, not installing flatpak.${NC}"
            ;;
        *)
            # If invalid input, show an error message and exit the function
            echo -e "${RED}Invalid input. Please enter y or n.${NC}"
            ;;
        esac

    fi

    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to add flathub repo
add_flathub_repo() {
    echo ""
    if command -v flatpak >/dev/null; then
        flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
        echo -e "${AQUA}Flathub repo added successfully.${NC}"
        sleep 1
        read -rp "Press Enter to continue..."
    else
        echo -e "${AQUA}Flatpak is not installed.${NC}"
        sleep 1
        read -rp "Press Enter to continue..."
    fi
}

# Function to list all installed Flatpak apps including runtimes
list_all_apps() {
    echo ""
    echo -e "${GREEN}Listing All Apps Including Runtimes:${NC}"
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    flatpak list # Use flatpak command to list apps
    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to list user installed flatpak apps
list_user_apps() {
    echo ""
    echo -e "${GREEN}Listing User Installed Apps:${NC}"
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    flatpak list --app # Use flatpak command to list apps
    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to update all installed Flatpak apps
update_apps() {
    echo ""
    echo -e "${GREEN}Updating All Apps...${NC}"
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    flatpak update -y # Use flatpak command to update all apps with yes option
    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to search and install a specific Flatpak app
install_app() {
    echo ""
    read -rp "Enter the app name to search: " app_name
    echo -e "${GREEN}Searching for $app_name...${NC}"
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    flatpak search "$app_name" # Use flatpak command to search for app name
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    read -rp "Enter the exact application id from above shown list to install: " app_install
    flatpak install "$app_install" # Use flatpak command to install app
    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to uninstall a specific Flatpak app
uninstall_app() {
    echo ""
    read -rp "Enter the app name to uninstall: " app_name
    flatpak uninstall "$app_name" # Use flatpak command to uninstall app
    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to downgrade a specific Flatpak app
downgrade_app() {
    echo ""
    echo -e "${AQUA}You need application id to downgrade app, you can find the application id in apps list.${NC}"
    sleep 3
    echo ""
    read -rp "Enter the application id of the app to downgrade: " app_id
    flatpak remote-info --log flathub "$app_id" # Use flatpak command to show the commit history of the app
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    read -rp "Enter the commit ID of the version you want: " commit_id
    sudo flatpak update --commit="$commit_id" "$app_id" # Use flatpak command to update the app to a specific commit
    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to delete unused runtime and flatpak cache and other unnecessary things
delete_unused() {
    echo ""
    echo -e "${GREEN}Deleting Unused Runtime & Flatpak Cache...${NC}"
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    flatpak uninstall --unused # Use flatpak command to uninstall unused runtime
    flatpak repair --user      # Use flatpak command to repair user installation
    flatpak repair --system    # Use flatpak command to repair system installation
    rm -rf ~/.var/app/*/.cache # Use rm command to remove cache files
    sleep 1
    read -rp "Press Enter to continue..."
}

# Function to manage permissions for Flatpak apps using Flatseal
manage_permissions() {
    echo ""
    echo -e "${GREEN}Managing Permissions for Flatpak Apps...${NC}"
    sleep 1
    echo -e "${GREEN}-----------------------${NC}"
    # Check if Flatseal is installed
    if flatpak list --app | grep -q "Flatseal"; then
        :
    else
        echo -e "${AQUA}Flatseal is not installed. Installing it now...${NC}"
        flatpak install com.github.tchx84.Flatseal -y # Use flatpak command to install Flatseal with yes option
    fi
    # Launch Flatseal
    echo -e "${GREEN}Launching Flatseal...${NC}"
    flatpak run com.github.tchx84.Flatseal & # Use flatpak command to run Flatseal in the background
    sleep 3
    # Wait for Flatseal to close
    echo -e "${GREEN}Waiting for Flatseal to close...${NC}"
    wait # Wait for the background process to finish
    echo -e "${AQUA}Flatseal has closed.${NC}"
    sleep 1
    read -rp "Press Enter to continue..."
}

# Go back to main menu
main_menu() {
    chmod +x manager
    ./manager
}

# Main loop
while true; do
    display_menu # Display the menu
    read -r choice

    case $choice in                                                                    # Handle the choice
    1) setup_flatpak ;;                                                                # Install or uninstall flatpak system in a distro
    2) add_flathub_repo ;;                                                             # Add flathub repo
    3) list_all_apps ;;                                                                # List apps
    4) list_user_apps ;;                                                               # List user apps
    5) update_apps ;;                                                                  # Update all apps
    6) install_app ;;                                                                  # Search and install app
    7) uninstall_app ;;                                                                # Uninstall app
    8) downgrade_app ;;                                                                # Downgrade app
    9) delete_unused ;;                                                                # Delete unused runtime and flatpak cache
    10) manage_permissions ;;                                                          # Manage permissions for Flatpak apps using Flatseal
    11) main_menu ;;                                                                   # Exit to main menu
    *) echo "" && echo -e "${RED}Invalid choice. Please try again.${NC}" && sleep 3 ;; # Invalid choice
    esac
done