Stop Linux from sleeing for certain time!

sleep-stop.sh

#!/bin/bash

# Function to handle Ctrl+C
function ctrl_c() {
    echo -e "\nCtrl+C pressed. Aborting countdown and releasing inhibition."
    echo "Killing systemd-inhibit process... - PID: $inhibit_pid"
    kill $inhibit_pid # Kill systemd-inhibit process
    exit 1
}

# Function to convert time input to seconds
function convert_to_seconds() {
    local input=$1
    local time_unit=${input: -1}  # Get last character (unit)
    local time_value=${input:0:-1}  # Get value without unit
    local seconds=0

    case $time_unit in
        "h") seconds=$((time_value * 3600));;  # hours to seconds
        "m") seconds=$((time_value * 60));;    # minutes to seconds
        "s") seconds=$time_value;;            # seconds
        *)  echo "Invalid time unit. Please use 'h', 'm', or 's'."; exit 1;;
    esac

    echo $seconds
}

# Countdown function
function countdown {
    secs=$1
    while [ $secs -gt 0 ]; do
        echo -ne "Time left: $secs\033[0Ks\r"
        sleep 1
        : $((secs--))
    done
    echo -e "Time's up!\n"
}

# Main script
clear
echo "Starting countdown..."

# Get countdown time input from user
read -p "Enter countdown time (e.g., 4h, 30m, 120s): " countdown_input

# Convert time input to seconds
countdown_time=$(convert_to_seconds $countdown_input)

# Trap Ctrl+C and call ctrl_c function
trap ctrl_c SIGINT

# Inhibit system sleep
systemd-inhibit --what=sleep --who="" --why="$USER is building something!" bash -c "sleep $countdown_input; systemctl suspend" &
# sleep 3000 &
inhibit_pid=$!

echo "ID of systemd-inhibit process: $inhibit_pid"

# Start countdown
countdown $countdown_time

# Other commands or actions to perform after countdown
echo "Performing post-countdown actions..."