#!/bin/sh

# Prints all batteries, their percentage remaining and an emoji corresponding
# to charge status (🔌 for plugged up, 🔋 for discharging on battery, etc.).

case $BLOCK_BUTTON in
	3) notify-send "$(ico bat-discharging) Battery module" "$(ico bat-discharging): discharging
$(ico bat): not charging
$(ico bat-unknown): stagnant charge
$(ico bat-charging): charging
$(ico bat-f): charged
$(ico warn): battery very low!
- Scroll to change adjust xbacklight." ;;
	4) xbacklight -inc 10 ;;
	5) xbacklight -dec 10 ;;
	6) "$TERMINAL" -e "$EDITOR" "$0" ;;
esac

# acpi alternative
# acpi | sed "s/Battery [0-9]: //;s/[Dd]ischarging, /$(ico bat-discharging)/;s/[Nn]ot charging, /$(ico bat)/;s/[Cc]harging, /$(ico bat-charging)/;s/[Uu]nknown, /$(ico bat-unknown)/;s/[Ff]ull, /$(ico bat-f)/;s/ \(remaining\|until charged\)//"; exit

# Loop through all attached batteries.
for battery in /sys/class/power_supply/BAT?
do
	# Get its remaining capacity and charge status.
	capacity=$(cat "$battery"/capacity 2>/dev/null) || break
	status=$(sed "s/[Dd]ischarging/$(ico bat-discharging)/;s/[Nn]ot charging/$(ico bat)/;s/[Cc]harging/$(ico bat-charging)/;s/[Uu]nknown/$(ico bat-unknown)/;s/[Ff]ull/$(ico bat-f)/" "$battery"/status)

	# If it is discharging and 25% or less, we will add a ❗ as a warning.
	 [ "$capacity" -le 25 ] && [ "$status" = "$(ico bat)" ] && warn="$(ico warn)"

	printf "%s%s%s%% " "$status" "$warn" "$capacity"
	unset warn
done | sed 's/ *$//'