#!/usr/bin/env bash

init() {
    # Vars
    CURRENT_USERNAME='frostphoenix'

    # Colors
    NORMAL=$(tput sgr0)
    WHITE=$(tput setaf 7)
    BLACK=$(tput setaf 0)
    RED=$(tput setaf 1)
    GREEN=$(tput setaf 2)
    YELLOW=$(tput setaf 3)
    BLUE=$(tput setaf 4)
    MAGENTA=$(tput setaf 5)
    CYAN=$(tput setaf 6)
    BRIGHT=$(tput bold)
    UNDERLINE=$(tput smul)
}

confirm() {
    echo -en "[${GREEN}y${NORMAL}/${RED}n${NORMAL}]: "
    read -n 1 -r
    echo
    if [[ ! $REPLY =~ ^[Yy]$ ]]
    then
        exit 0
    fi
}

print_header() {
    echo -E "$CYAN
      _____              _   ____  _                      _        
     |  ___| __ ___  ___| |_|  _ \| |__   ___   ___ _ __ (_)_  __  
     | |_ | '__/ _ \/ __| __| |_) | '_ \ / _ \ / _ \ '_ \| \ \/ /  
     |  _|| | | (_) \__ \ |_|  __/| | | | (_) |  __/ | | | |>  <   
     |_|  |_|  \___/|___/\__|_|   |_| |_|\___/ \___|_| |_|_/_/\_\  
     _   _ _       ___        ___           _        _ _           
    | \ | (_)_  __/ _ \ ___  |_ _|_ __  ___| |_ __ _| | | ___ _ __ 
    |  \| | \ \/ / | | / __|  | || '_ \/ __| __/ _' | | |/ _ \ '__|
    | |\  | |>  <| |_| \__ \  | || | | \__ \ || (_| | | |  __/ |   
    |_| \_|_/_/\_\\\\___/|___/ |___|_| |_|___/\__\__,_|_|_|\___|_| 


                  $BLUE https://github.com/Frost-Phoenix $RED 
      ! To make sure everything runs correctly DONT run as root ! $GREEN
                        -> '"./install.sh"' $NORMAL

    "
}

get_username() {
    echo -en "Enter your$GREEN username$NORMAL : $YELLOW"
    read username
    echo -en "$NORMAL"
    echo -en "Use$YELLOW "$username"$NORMAL as ${GREEN}username${NORMAL} ? "
    confirm
}

set_username() {
    sed -i -e "s/${CURRENT_USERNAME}/${username}/g" ./flake.nix
    sed -i -e "s/${CURRENT_USERNAME}/${username}/g" ./modules/home/audacious/config
}

get_host() {
    echo -en "Choose a ${GREEN}host${NORMAL} - [${YELLOW}D${NORMAL}]esktop, [${YELLOW}L${NORMAL}]aptop or [${YELLOW}V${NORMAL}]irtual machine: "
    read -n 1 -r
    echo

    if [[ $REPLY =~ ^[Dd]$ ]]; then
        HOST='desktop'
    elif [[ $REPLY =~ ^[Ll]$ ]]; then
        HOST='laptop'
     elif [[ $REPLY =~ ^[Vv]$ ]]; then
        HOST='vm'
    else
        echo "Invalid choice. Please select 'D' for desktop, 'L' for laptop or 'V' for virtual machine."
        exit 1
    fi
    
    echo -en "$NORMAL"
    echo -en "Use the$YELLOW "$HOST"$NORMAL ${GREEN}host${NORMAL} ? "
    confirm
}

install() {
    echo -e "\n${RED}START INSTALL PHASE${NORMAL}\n"
    sleep 0.2

    # Create basic directories
    echo -e "Creating folders:"
    echo -e "    - ${MAGENTA}~/Music${NORMAL}"
    echo -e "    - ${MAGENTA}~/Documents${NORMAL}"
    echo -e "    - ${MAGENTA}~/Pictures/wallpapers/others${NORMAL}"
    mkdir -p ~/Music
    mkdir -p ~/Documents
    mkdir -p ~/Pictures/wallpapers/others
    sleep 0.2

    # Copy the wallpapers
    echo -e "Copying all ${MAGENTA}wallpapers${NORMAL}"
    cp -r wallpapers/wallpaper.png ~/Pictures/wallpapers
    cp -r wallpapers/otherWallpaper/catppuccin/* ~/Pictures/wallpapers/others/
    cp -r wallpapers/otherWallpaper/nixos/* ~/Pictures/wallpapers/others/
    cp -r wallpapers/otherWallpaper/others/* ~/Pictures/wallpapers/others/
    sleep 0.2

    # Get the hardware configuration
    echo -e "Copying ${MAGENTA}/etc/nixos/hardware-configuration.nix${NORMAL} to ${MAGENTA}./hosts/${HOST}/${NORMAL}\n"
    cp /etc/nixos/hardware-configuration.nix hosts/${HOST}/hardware-configuration.nix
    sleep 0.2

    # Last Confirmation
    echo -en "You are about to start the system build, do you want to process ? "
    confirm

    # Build the system (flakes + home manager)
    echo -e "\nBuilding the system...\n"
    sudo nixos-rebuild switch --flake .#${HOST}
}

main() {
    init

    print_header

    get_username
    set_username
    get_host

    install
}

main && exit 0
