#!/bin/sh

usage()
{
    echo "Enable/Disable Wayland in GDM"
    echo "Usage: sphere-wayland-configure <--enable|--disable>"
    echo
    exit 1
}

OPTION="$1"

echo $OPTION

if [ "$OPTION" != "--disable" -a "$OPTION" != "--enable" ]; then
    echo "Unknown option"
    usage
fi

if [ ! -f /etc/gdm/custom.conf ]; then
    echo "GDM configuration file not found"
    exit 5
fi

if [ "$OPTION" = "--enable" ]; then
    sed -i '/^WaylandEnable=false/s@^@#@' /etc/gdm/custom.conf
    sed -i '/^DefaultSession=/s@^@#@' /etc/gdm/custom.conf

    echo "Wayland enabled, please restart gdm"
    echo "sudo systemctl restart gdm.service"
elif [ "$OPTION" = "--disable" ]; then
    sed -i '/^#WaylandEnable=false/s@^#@@' /etc/gdm/custom.conf
    sed -i '/^#DefaultSession=/s@^#@@' /etc/gdm/custom.conf

    echo "Wayland enabled, please restart gdm"
    echo "sudo systemctl restart gdm.service"
fi