{ pkgs, ... }:

let
  name = "scr";
  import = "${pkgs.imagemagick}/bin/import";
  xclip = "${pkgs.xclip}/bin/xclip";
  xdotool = "${pkgs.xdotool}/bin/xdotool";
in
pkgs.writeShellScriptBin name
  ''
    scr_path=~/pics/scrots
    output="$(tr -dc 'a-zA-Z0-9' < /dev/random | fold -w 5 | head -n 1)"

    usage() {
        echo "usage:"
        echo "  scr [option]"
        echo "options:"
        echo "  -f    full screenshot"
        echo "  -w    window screenshot"
        echo "  -s    selection screenshot"
    }

    while getopts fws option
    do
        case $option in
            f)
                ${import} -window root "$scr_path/$output.png"
                ;;
            w)
                ${import} -window "$(${xdotool} getwindowfocus)" "$scr_path/$output.png"
                ;;
            s)
                ${import} "$scr_path/$output.png"
                ;;
            * | ?)
                usage
                exit;;
            esac
    done

    if [ $OPTIND -eq 1 ]; then
        echo "scr: missing argument"
        usage
        exit
    fi


    ${xclip} -selection clipboard -t image/png -i "$scr_path/$output.png"
    cp "$scr_path/$output.png" "$scr_path/latest.png"
  ''