#!/usr/bin/env bash
# Minimal Niri hardware-key feedback; the notifier replaces each control's popup.
set -euo pipefail
export LC_ALL=C

target="@DEFAULT_AUDIO_SINK@"
label="Volume"
tag="volume"
case "${1:-}" in
    up) wpctl set-volume --limit 1.0 "$target" 5%+ ;;
    down) wpctl set-volume "$target" 5%- ;;
    mute) wpctl set-mute "$target" toggle ;;
    mic-mute|mic-show)
        target="@DEFAULT_AUDIO_SOURCE@"
        label="Microphone"
        tag="microphone"
        if [[ $1 == mic-mute ]]; then
            wpctl set-mute "$target" toggle
        fi
        ;;
    show) ;;
    *) echo "Usage: notify-volume {up|down|mute|mic-mute|show|mic-show}" >&2; exit 2 ;;
esac

line=$(wpctl get-volume "$target")
if [[ ! $line =~ ^Volume:[[:space:]]+([0-9]+([.][0-9]+)?) ]]; then
    echo "notify-volume: cannot read $target volume" >&2
    exit 1
fi
percent=$(awk -v level="${BASH_REMATCH[1]}" 'BEGIN { printf "%.0f", level * 100 }')
value=$percent
(( value > 100 )) && value=100
summary="$label: $percent%"
icon_prefix=audio-volume
[[ $tag == microphone ]] && icon_prefix=microphone-sensitivity
if (( percent <= 33 )); then
    icon="$icon_prefix-low-symbolic"
elif (( percent <= 66 )); then
    icon="$icon_prefix-medium-symbolic"
else
    icon="$icon_prefix-high-symbolic"
fi
if [[ $line == *MUTED* ]]; then
    summary="$label: Muted ($percent%)"
    value=0
    icon="$icon_prefix-muted-symbolic"
elif [[ $tag == microphone ]]; then
    summary="$label: On ($percent%)"
fi

notify-send --app-name=desktop-feedback --urgency=low --expire-time=1500 \
    --icon="$icon" \
    --hint="string:x-canonical-private-synchronous:$tag" \
    --hint="int:value:$value" --hint=boolean:transient:true \
    --hint=boolean:suppress-sound:true "$summary"