nixos/pkgs/eww-hyprland/scripts/volume

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#!/usr/bin/env bash
# shellcheck source=/dev/null
source "$(dirname "$0")"/utils
volicons=("" "" "")
date="$XDG_CACHE_HOME/eww/osd_vol.date"
vol() {
wpctl get-volume @DEFAULT_AUDIO_"$1"@ | awk '{print int($2*100)}'
}
ismuted() {
wpctl get-volume @DEFAULT_AUDIO_"$1"@ | rg -qi muted
echo -n $?
}
setvol() {
wpctl set-volume @DEFAULT_AUDIO_"$1"@ "$(awk -v n="$2" 'BEGIN{print (n / 100)}')"
}
setmute() {
wpctl set-mute @DEFAULT_AUDIO_"$1"@ toggle
}
gen_output() {
percent="$(vol "SINK")"
if [[ "$event" == *source* ]]; then
pactl list sources | rg -q RUNNING
[ $? -eq 1 ] && in_use=0 || in_use=1
else
lvl=$(awk -v n="$percent" 'BEGIN{print int(n/34)}')
ismuted=$(ismuted "SINK")
if [ "$ismuted" = 1 ]; then
icon="${volicons[$lvl]}"
else
icon=""
fi
fi
echo '{"icon": "'"$icon"'", "percent": "'"$percent"'", "microphone": "'"$(vol "SOURCE")"'", "in_use": "'"$in_use"'"}'
}
case "$1" in
"mute")
if [ "$2" != "SOURCE" ] && [ "$2" != "SINK" ]; then
echo "Can only mute SINK or SOURCE"
exit 1
fi
setmute "$2"
;;
"setvol")
if [ "$2" != "SOURCE" ] && [ "$2" != "SINK" ]; then
echo "Can only set volume for SINK or SOURCE"
exit 1
elif [ "$3" -lt 0 ] || [ "$3" -gt 100 ]; then
echo "Volume must be between 0 and 100"
exit 1
fi
setvol "$2" "$3"
;;
"osd")
osd "$date"
;;
"")
# initial values
in_use=0
last_time=$(get_time_ms)
gen_output
osd_handler "osd-volume" &
# event loop
pactl subscribe | rg --line-buffered ".*(source|sink).*" | while read -r event; do
current_time=$(get_time_ms)
delta=$((current_time - last_time))
# 50ms debounce
if [[ $delta -gt 50 ]]; then
gen_output
# reset debounce timer
last_time=$(get_time_ms)
fi
done
;;
*) echo "wrong usage" ;;
esac