Linux user service - Battery Power

battery-monitor.sh

#!/bin/bash
# bat: https://github.com/tshakalekholoane/bat
# --- Variables ---
WARNING_THRESHOLD=35     # The percentage at which to warn you
CHECK_INTERVAL=60        # How often to check (in seconds)
POPUP_DURATION=15        # How long the popup stays on screen (in seconds)

while true; do
    STATUS=$(bat status)

    # Guard clause: Exit if charging
    if [ "$STATUS" = "Charging" ]; then
        sleep "$CHECK_INTERVAL"
        continue
    fi

    # If we made it here, we are discharging. Now check capacity.
    CAPACITY=$(bat capacity)

    # Validate capacity is a number, then check against threshold
    if [[ "$CAPACITY" =~ ^[0-9]+$ ]] && [ "$CAPACITY" -le "$WARNING_THRESHOLD" ]; then
        kdialog --passivepopup "🪫 Battery is ${CAPACITY}%, plugin in charger now" "$POPUP_DURATION" --title "Battery Low"
    fi

    # Wait before checking again
    sleep "$CHECK_INTERVAL"
done

KDE, obviously.