RetroPie Moonlight GameStream Generator

#!/bin/bash
if [ "${USER}" != "root" ]; then
        echo "Error: Run with sudo/root"
        exit 1;
fi

FILE_PREFIX="NVidia GameStream"
SCRIPT_PATH="/home/pi/RetroPie/roms/ports"
MOONLIGHT_SCRIPT="/opt/retropie/supplementary/moonlight/moonlight.sh"
MOONLIGHT_ZES_SCRIPT="/opt/retropie/supplementary/moonlight/moonlight-zes.sh"


IFS=$'\n'

function get_nickname() {
        case $1 in
                "192.168.11.8")
                        echo "DESKTOP-ZEFIE";
                        ;;
                *)
                        echo $1;
                        ;;
        esac
}

function make_script() {
        local OUT="${1}"
        echo "Creating ${OUT}"
        echo '#!/bin/bash' > "${OUT}"
        echo "GAME_NAME=\"${2}\"" >> "${OUT}"
        echo ". ${MOONLIGHT_ZES_SCRIPT}" >> "${OUT}"
        chmod 755 "${OUT}"
}

function make_zes_script() {
        local OUT="${1}"
        echo "Creating ${OUT}"
        echo '#!/bin/bash' > "${OUT}"
        echo 'if [ -z "${GAME_NAME}" ]; then' >> "${OUT}"
        echo -e "\t\"${MOONLIGHT_SCRIPT}\" stream" >> "${OUT}"
        echo "else" >> "${OUT}"
        echo -e "\t\"${MOONLIGHT_SCRIPT}\" stream -app \"\${GAME_NAME}\"" >> "${OUT}"
        echo "fi" >> "${OUT}"
}


if [ ! -f "${MOONLIGHT_ZES_SCRIPT}" ]; then
        make_zes_script "${MOONLIGHT_ZES_SCRIPT}"
fi

cd "${SCRIPT_PATH}"
echo "Clearing old scripts (if any)..."
rm -f "${FILE_PREFIX}"*.sh

for g in $("${MOONLIGHT_SCRIPT}" list); do
        if [[ $g =~ ^[0-9] ]]; then
                GAME_NAME=$(echo "${g}" | cut -d' ' -f2-)
                FILE_NAME="${FILE_PREFIX} ($(echo "${GAME_NAME}" | tr -cd '\11\12\15\40-\176' | sed 's/://g') on ${HOST}).sh"
                make_script "${SCRIPT_PATH}/${FILE_NAME}" "${GAME_NAME}";
        fi

        if [[ $g =~ ^Connect ]]; then
                HOST=$(get_nickname $(echo "${g}" | cut -d' ' -f3 | sed 's/\.\.\.$//'))
        fi
done