#!/bin/sh

div="----------"

set_output() {
  sel_sink=$(printf "$sinks\\n$div\\nback\\nexit" | rofi -dmenu -l 10 -i -p "sink")
  case "$sel_sink" in
    back) show_current ;;
    exit) exit ;;
    *)    pactl set-default-sink $(pactl list sinks | grep -B 1 "$sel_sink" | awk -F': ' '/Name:/ {print $2}') ;;
  esac
  kill -46 $(pidof dwmblocks)
  show_current
}

set_input() {
  sel_source=$(printf "$sources\\n$div\\nBluetooth profile\\n$div\\nback\\nexit" | rofi -dmenu -l 10 -i -p "source")
  case "$sel_source" in
    back) show_current ;;
    exit) exit ;;
    Bluetooth*) set_bt_profile ;;
    *)          pactl set-default-source "$(pactl list sources | grep -B 1 "$sel_source" | awk -F': ' '/Name:/ {print $2}')" ;;
  esac
  kill -46 $(pidof dwmblocks)
  show_current
}

set_bt_profile() {
  bt_sink=$(pactl list cards | awk -F'"' '/device.name.*bluez/ {print $2}')
  [ -z "${bt_sink}" ] &&
    { dunstify -u critical "🎧 no headphones connected"; exit; }
  profile_chosen=$(printf "profile mSBC\\nprofile LDAC\\n$div\\nback\\nexit" | rofi -dmenu -l 5 -i -p "profile")
  case "$profile_chosen" in
    back) show_current ;;
    exit) exit ;;
    profile*mSBC)  pactl set-card-profile $bt_sink headset-head-unit-msbc
                   pactl set-default-source $(pactl list sources short | awk '/bluez_input/ {print $2}') ;;
    profile*LDAC)  pactl set-card-profile $bt_sink a2dp-sink-ldac ;;
    *)             show_current ;;
  esac
  pactl set-default
}

show_current() {
  def_snk=$(pactl list | grep -A 1 "Name: $(pactl get-default-sink)\$" | awk -F': ' '/Description: / {print $2}')
  def_src=$(pactl list | grep -A 1 "Name: $(pactl get-default-source)\$" | awk -F': ' '/Description: / {print $2}')
  chosen=$(printf "Output: $def_snk\\nInput:  $def_src" | rofi -dmenu -l 2 -p "current settings")
  if [ "$1" = "no_switch" ]; then
    case "$chosen" in
      *) dunstify -u critical "🔊 no device to switch" ;;
    esac
  else
    case "$chosen" in
      Output*)  set_output ;;
      Input*)   set_input  ;;
    esac
  fi
}

sinks=$(pactl list sinks | awk -F': ' '/Description:/ {print $2}')
sources=$(pactl list sources | grep -v 'Monitor of ' | awk -F': ' '/Description:/ {print $2}')
[ "$(echo "$sinks" | wc -l)" -lt 2 ] &&
  { show_current no_switch; exit; }

show_current