Pseudo - Main Worker.sh

#!/bin/bash
# Intended to be a service


ReadConfig
# 
# Polls the memory segment for the configuration, and fires the main script with populated parameters
# Populate config variables

CheckInteractionMethods
# Based on numbers of users, it returns their interaction methods in a integer format.
# It could be:
# 1. SSH [ Headless / Remote]
# 2. XOrg [ Desktop ]
# 3. XWayland [ Desktop ]

# So, hypothetically, if there's 3 users logged on, each using one method each, it returns: 123
# If there's 2 ssh users and 1 XWayland user, it would return 113


CheckActivity
# Takes output from CheckInteractionMethods as input
# Splits the string of numbers, and for each of them, runs a check on the relevant source
# Each check results in a true or false, these are collected in an array
# This above-mentioned array, then gets parsed, and the shared memory segment gets updated with the conclusion.



# Main script for the service to loop
$ConfigCounter = 0

while [[ true ]] do

    # Periodically reload the config, based on amount of times the script has run
    if($ConfigCounter -ge 10#(Value should be from the config file)){
        ReadConfig
        $ConfigCounter = 0
    }

    $Methods = CheckInteractionMethods
    CheckActivity -InputString $Methods

    # The main action part of the solution
    # Check the Activity memory segment for:
    if($MemorySegment_Activity.Line1 -eq true){
        # System is active.
        if ($MemorySegment.Line2 -eq false){
            # A System-Active command has not yet been fired
            FireActiveCommand()
            $MemorySegment.Line2 = true
        }
    }

    else{
        # System is inactive
        if ($MemorySegment.Line2 -eq false){
            # An idle command has not yet been fired
            FireIdleCommand()
            $MemorySegment.Line2 = true
        }
    }

    $ConfigCounter++
    sleep 10 #(Value should be loaded from the config)

done