#!/bin/sh
set -eu

ACTION="${1:-}"
PROG="$(basename "${0}")"
SOCKET_PATH="/tmp/mpv-${USER}.sock"

send_cmd() {
  echo "{ \"command\": ${1} }" | socat - "${SOCKET_PATH}"
}


play_playlist() {
    playlist="${1:-}"

    if [ -z "${playlist}" ]; then
        playlist="${HOME}/Music"
    fi

    exec mpv --input-ipc-server="${SOCKET_PATH}" --shuffle --no-video --ytdl-format=worstaudio "${@}" -- "${playlist}"
}

tune_radio() {
    channel="${1:-}"

    if [ "${channel}" = lofi ]; then
      url='https://radiorecord.hostingradio.ru/lofi96.aacp'
    elif [ "${channel}" = fallout ]; then
      url='http://fallout.fm:8000/falloutfm1.ogg'
    elif [ "${channel}" = wasteland ]; then
      url='http://wasteland.su:8080/radio'
    elif [ "${channel}" = retrofm ]; then
      url='http://hls-01-retro.emgsound.ru/12/128/playlist.m3u8'
    elif [ "${channel}" = rusradio ]; then
      url='https://rusradio.hostingradio.ru/rusradio128.mp3'
    elif [ "${channel}" = rock ]; then
      url='https://radiorecord.hostingradio.ru/rock96.aacp'
    elif [ "${channel}" = phonk ]; then
      url='https://radiorecord.hostingradio.ru/phonk96.aacp'
    elif [ "${channel}" = dorognoe ]; then
      url='https://dorognoe.hostingradio.ru:8000/dorognoe'
    else
      echo "${PROG} radio: don't know \"${channel}\": lofi/fallout/wasteland/retrofm/rusradio/rock/phonk/dorognoe" 1>&2
      exit 1
    fi

    send_cmd "[\"loadfile\", \"${url}\", \"replace\"]"
}

play_radio() {
    channel="${1:-}"

    if [ "${channel}" = lofi ]; then
      url='https://radiorecord.hostingradio.ru/lofi96.aacp'
    elif [ "${channel}" = fallout ]; then
      url='http://fallout.fm:8000/falloutfm1.ogg'
    elif [ "${channel}" = wasteland ]; then
      url='http://wasteland.su:8080/radio'
    elif [ "${channel}" = retrofm ]; then
      url='http://hls-01-retro.emgsound.ru/12/128/playlist.m3u8'
    elif [ "${channel}" = rusradio ]; then
      url='https://rusradio.hostingradio.ru/rusradio128.mp3'
    elif [ "${channel}" = rock ]; then
      url='https://radiorecord.hostingradio.ru/rock96.aacp'
    elif [ "${channel}" = phonk ]; then
      url='https://radiorecord.hostingradio.ru/phonk96.aacp'
    elif [ "${channel}" = dorognoe ]; then
      url='https://dorognoe.hostingradio.ru:8000/dorognoe'
    else
      echo "${PROG} run radio: don't know \"${channel}\": lofi/fallout/wasteland/retrofm/rusradio/rock/phonk/dorognoe" 1>&2
      exit 1
    fi

    exec mpv --really-quiet "${url}"
}

cmd_run() {
    case "${1:-}" in
      music) shift;
        play_playlist "${@}"
        ;;
      radio) shift;
        play_radio "${@}"
        ;;
      help|"")
        echo "Usage: ${PROG} run {music PLAYLIST|radio CHANNEL}"
        echo "Example: ${PROG} run music"
        ;;
    esac
}


case "${ACTION}" in
  next|n) shift;
    send_cmd '["playlist-next"]'
    echo "➡️ Next"
    ;;
  prev|p) shift;
    send_cmd '["playlist-prev"]'
    echo "⬅️ Prev"
    ;;
  pause|space) shift;
    send_cmd '["cycle", "pause"]'
    echo "⏯️ Pause"
    ;;
  run) shift;
    cmd_run "${@}"
    ;;
  radio) shift;
    tune_radio "${@}"
    ;;
  help|"")
    echo "Usage: ${PROG} {next|prev|pause|run|radio CHANNEL}"
    echo "Example: ${PROG} next"
    ;;
esac