#!/bin/sh

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

case $BLOCK_BUTTON in
	3) notify-send "🔋 Battery module" "🔋: discharging
🛑: not charging
♻: stagnant charge
🔌: charging
⚡: charged
🪫: less than 50% remaining
❗: battery very low!
- Scroll to change adjust xbacklight." ;;
	4) xbacklight -inc 10 ;;
	5) xbacklight -dec 10 ;;
	6) "$TERMINAL" -e "$EDITOR" "$0" ;;
esac

# Loop through all attached batteries and format the info
for battery in /sys/class/power_supply/BAT?*; do
	# If non-first battery, print a space separator.
	[ -n "${capacity+x}" ] && printf " "
	# Sets up the status and capacity
	case "$(cat "$battery/status" 2>&1)" in
		"Full") status="⚡" ;;
		"Discharging") status="🔋" ;;
		"Charging") status="🔌" ;;
		"Not charging") status="🛑" ;;
		"Unknown") status="♻️" ;;
		*) exit 1 ;;
	esac
	capacity="$(cat "$battery/capacity" 2>&1)"
	test $status = '🔋' && \
	test $capacity -le 50 && stat='🪫' && \
	test $capacity -le 25 && warn='❗'
	# Prints the info
	printf "%s%s%d%%" "$status" "$warn" "$capacity"; unset warn
done && printf "\\n"