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{ lib, pkgs, ... }:
let
pactl = "${pkgs.pulseaudio}/bin/pactl";
jq = "${pkgs.jq}/bin/jq";
in pkgs.writeShellScriptBin "mute" ''
set -euo pipefail
IFS=$'\n\t'
target="''${1:-0}"
inputs="$(${pactl} -f json list sink-inputs)"
if [[ "''${1:-}" != "" ]]; then
index="$(${jq} '.['$target'].index' <<< "$inputs")"
muted="$(${jq} '.['$target'].mute' <<< "$inputs")"
if [[ "$muted" = "true" ]]; then
${pactl} set-sink-input-mute "$index" false
else
${pactl} set-sink-input-mute "$index" true
fi
inputs="$(${pactl} -f json list sink-inputs)"
fi
count="$(${jq} 'length' <<< "$inputs")"
for ((i = 0; i < $count; i++)); do
index="$(${jq} '.['$i'].index' <<< "$inputs")"
muted="$(${jq} '.['$i'].mute' <<< "$inputs")"
name="$(${jq} '.['$i'].properties."application.name"' <<< "$inputs")"
media="$(${jq} '.['$i'].properties."media.name"' <<< "$inputs")"
state=" "
if [[ "$muted" = "true" ]]; then
state="*"
fi
printf ' [%d] %s %d\t%s\t(%s)\n' "$i" "$state" "$index" "$name" "$media"
done
''
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