#!/bin/bash

# Command to kill all the previous instances of the current bash file.
kill -9 $(pgrep -f ${BASH_SOURCE[0]} | grep -v $$)

# Function to get the Linux distribution name
function get_distro() {
    if [[ -f /etc/os-release ]]
    then
        # On Linux systems
        source /etc/os-release
        echo $ID
    else
        # On systems other than Linux (e.g. Mac or FreeBSD)
        uname
    fi
}


DISTRIBUTION_NAME=$(get_distro)
LINUX_MINT="linuxmint"


if [ "$DISTRIBUTION_NAME" = "$LINUX_MINT" ]
then
	# Code related to hook SCREEN_LOCK and SCREEN_UNLOCK events in MINT distribution
	dbus-monitor --session "type='signal',interface='org.cinnamon.ScreenSaver'" |
  	  while read x; do
    	case "$x" in 
      	  *"boolean true"*) echo "SCREEN_LOCKED";;
      	  *"boolean false"*) echo "SCREEN_UNLOCKED";; 
        esac
  	  done
else
    # Code related to hook SCREEN_LOCK and SCREEN_UNLOCK events in UBUNTU distribution
	dbus-monitor --session "type='signal',interface='org.gnome.ScreenSaver'" |
	  while read x; do
	    case "$x" in 
	      *"boolean true"*) echo "SCREEN_LOCKED";;
	      *"boolean false"*) echo "SCREEN_UNLOCKED";; 
	    esac
	  done
fi