Polybar pipewire configuration

config.ini

;...
; choose the modules to display
modules-right = pipewire battery wlan
;...

[module/pipewire]
type = custom/script
label = "%output%"
label-font = 1
label-padding = 3
interval = 2.0
exec = ~/.config/polybar/pipewire.sh
click-right = exec pavucontrol &
click-left = ~/.config/polybar/pipewire.sh mute &
scroll-up = ~/.config/polybar/pipewire.sh up &
scroll-down = ~/.config/polybar/pipewire.sh down &

output

Music blasting:
<NORMAL_SPEAKER_ICON>   12%   Built-in Audio

Muted:
<MUTED_SPEAKER_ICON>   Built-in Audio

pipewire.sh

#!/bin/bash

# this file goes into ~/.config/polybar/pipewire.sh
# don't forget to run chmod +x ~/.config/polybar/pipewire.sh

function main() {
	SINK=$(wpctl inspect @DEFAULT_AUDIO_SINK@ | sed -n '/node.description/ s/.*node\.description = \"\(.*\)\"$/\1/p')
	VOLUME=$(wpctl get-volume @DEFAULT_AUDIO_SINK@ | sed -n "s!^Volume:.* \([[:digit:]]\+\.[[:digit:]]\+\).*!\1!p")
	IS_MUTED=$(wpctl get-volume @DEFAULT_AUDIO_SINK@ | sed -n "s!^Volume:.*\(\[MUTED\]\)\$!\1!p")

	action=$1
	if [ "${action}" == "up" ]; then
		wpctl set-volume @DEFAULT_AUDIO_SINK@ 4%+
	elif [ "${action}" == "down" ]; then
		wpctl set-volume @DEFAULT_AUDIO_SINK@ 4%-
	elif [ "${action}" == "mute" ]; then
		wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle
	else
		if [ "${IS_MUTED}" != "" ]; then
      # add a nice muted speaker icon here
			echo "   ${SINK}"
		else
			PERCENT_VOL=$(echo "${VOLUME} * 100" | bc)
      # add a nice blasting speaker icon here
			printf "   %.0f%% %s\n" "$PERCENT_VOL" "  $SINK"
		fi
	fi
}

main $@