FZF Radio-browser search with MPD enqueue

radios

#!/bin/bash
API="https://de1.api.radio-browser.info/json"

MODE=1 # 1 = by name, 2 = country list
PREVIEW_MODE=1 # 1 = hints, 2 = item info

MODE_FILE=/tmp/RADIOS_MODE_$RANDOM
PREVIEW_MODE_FILE=/tmp/RADIOS_PREVIEW_MODE_$RANDOM
LAST_STATIONS_FILE=/tmp/RADIOS_STATIONS_$RANDOM

PORT=$((RANDOM % 16384 + 49152))

echo $MODE > "$MODE_FILE"
echo $PREVIEW_MODE > "$PREVIEW_MODE_FILE"

function setMode() {
  echo "$1" > "$MODE_FILE"
}

function togglePreviewMode() {
  PREVIEW_MODE=$(cat "$PREVIEW_MODE_FILE")
  PREVIEW_MODE=$((PREVIEW_MODE % 2 + 1))
  echo $PREVIEW_MODE > "$PREVIEW_MODE_FILE"
}

function getModeInfo() {
  MODE=$(cat "$MODE_FILE")
  if [ "$MODE" -eq 1 ]; then
    echo "Search by name"
  elif [ "$MODE" -eq 2 ]; then
    echo "List of countries"
  else
    echo "I am broken 🥺"
  fi
}

function printModeInfo() {
  echo "mode = $(getModeInfo)"
}

function fetchStations() {
    local limit=100
    local query="$1"
    local qparams=""

    [ "${#query}" -lt 1 ] && query=""

    MODE=$(cat "$MODE_FILE")

    if [ "$MODE" -eq 1 ]; then
      qparams="name=$query"
    else
      echo "I am broken 🥺"
      exit 1
    fi

    if [ "${#query}" -lt 1 ]; then
      echo "top $limit" \
        | tee "$LAST_STATIONS_FILE"
    else
      echo "query = ${query}" \
        | tee "$LAST_STATIONS_FILE"
    fi

    printModeInfo \
      | tee -a "$LAST_STATIONS_FILE"

    curl \
      -s \
      --data-urlencode "$qparams" \
      --data-urlencode "order=votes" \
      --data-urlencode "reverse=true" \
      --data-urlencode "limit=$limit" \
      --data-urlencode "hidebroken=true" \
      "$API/stations/search" \
      | jq -r '
        .[] |
        [
          (.name | gsub("\t";" ")),
          (((.bitrate // 0) | tostring) + "kbps"),
          (.url_resolved),
          (.bitrate // "n/a"),
          (.codec // "n/a"),
          (.country // ""),
          (.votes // "n/a")
        ]
        | @tsv
      ' \
      | tee -a "$LAST_STATIONS_FILE"

}

function fetchCountries() {
  echo ""
  printModeInfo

  curl \
    -s \
    --data-urlencode "order=stationcount" \
    --data-urlencode "reverse=true" \
    "$API/countries" \
    | jq -r '.[] |
      [
        (.stationcount // "n/a"),
        (.name | gsub("\t";" "))
      ]
      | @tsv'

}

function fetchSationsForCountry() {
  country="$1"
  echo "List of stations for $country" \
   | tee "$LAST_STATIONS_FILE"

  printModeInfo \
  | tee -a "$LAST_STATIONS_FILE"

  curl \
    -s \
    --data-urlencode "country=$country" \
    --data-urlencode "order=votes" \
    --data-urlencode "reverse=true" \
    --data-urlencode "hidebroken=true" \
    "$API/stations/search" \
    | jq -r '
      .[] |
      [
        (.name | gsub("\t";" ")),
        (((.bitrate // 0) | tostring) + "kbps"),
        (.url_resolved),
        (.bitrate // "n/a"),
        (.codec // "n/a"),
        (.country // "n/a"),
        (.votes // "n/a")
      ]
      | @tsv
    ' \
    | tee -a "$LAST_STATIONS_FILE"

}

function fetch() {
  MODE=$(cat "$MODE_FILE")
  if [ "$MODE" -eq 1 ]; then
    fetchStations "$1"
  elif [ "$MODE" -eq 2 ]; then
    fetchCountries
  else
    echo "I am broken 🥺"
    exit 1
  fi
}

function handle() {
  MODE=$(cat "$MODE_FILE")
  if [ "$MODE" -eq 1 ]; then
    url=$(echo "$1" | cut -f3)
    mpdAddStation "$url"
    cat "$LAST_STATIONS_FILE"
  elif [ "$MODE" -eq 2 ]; then
    country=$(echo "$1" | cut -f2)
    fetchSationsForCountry "$country"
    # use TCP to send "clear-query" command
    curl -s -X POST --data 'clear-query' "http://127.0.0.1:$PORT"
    setMode 1
  else
    echo "I am broken 🥺"
    exit 1
  fi
}

function handleAddAndPlay() {
  MODE=$(cat "$MODE_FILE")
  if [ "$MODE" -eq 1 ]; then
    cat "$LAST_STATIONS_FILE"
    url=$(echo "$1" | cut -f3)
    mpdAddStation "$url" 1
  fi
}

function mpdAddStation() {
  url="$1"
  play="$2"
  mpc add "$url" &>/dev/null
  if [ "$play" -eq 1 ]; then
    mpc play $(mpc playlist | wc -l) &>/dev/null
  fi
}

function preview() {
  PREVIEW_MODE=$(cat "$PREVIEW_MODE_FILE")

  if [ "$PREVIEW_MODE" -eq 1 ]; then
    echo 'ctrl+c for Country list mode'
    echo 'ctrl+s for Search mode'
    echo 'ctrl+x to excute query in search mode'
    echo 'alt+enter add station and play it'
  else
    MODE=$(cat "$MODE_FILE")
    if [ "$MODE" -eq 1 ]; then
      name=$(echo "$1" | cut -f1)
      country=$(echo "$1" | cut -f6)
      votes=$(echo "$1" | cut -f7)
      codec=$(echo "$1" | cut -f5)
      bitrate=$(echo "$1" | cut -f4)
      url=$(echo "$1" | cut -f3)
      echo "$country"
      echo "$name"
      echo "codec $codec | bitrate $bitrate | votes $votes"
      echo "$url"
    else
      name=$(echo "$1" | cut -f2)
      count=$(echo "$1" | cut -f1)
      echo "$name"
      echo "station count: $count"
    fi
  fi

}

export API
export DELAY
export MODE_FILE
export PREVIEW_MODE_FILE
export LAST_STATIONS_FILE
export PORT
export MODE
export -f handle
export -f handleAddAndPlay
export -f fetch
export -f fetchCountries
export -f fetchStations
export -f fetchSationsForCountry
export -f setMode
export -f getModeInfo
export -f printModeInfo
export -f preview
export -f togglePreviewMode
export -f mpdAddStation


cleanup() {
  rm $MODE_FILE &>/dev/null || true
  rm $PREVIEW_MODE_FILE &>/dev/null || true
  rm $LAST_STATIONS_FILE &>/dev/null || true
}

trap cleanup EXIT

fzf \
  --ansi \
  --listen "127.0.0.1:$PORT" \
  --delimiter="\t" \
  --with-nth="1,2" \
  --layout=reverse \
  --border=none \
  --highlight-line \
  --cycle \
  --list-border=rounded \
  --info=right \
  --header-lines=2 \
  --preview="preview {}" \
  --preview-window=bottom:4:wrap \
  --preview-border=line \
  --preview-label="ctrl+d to toggle preview mode" \
  --prompt="> " \
  --bind "start:reload:bash -c 'fetch'" \
  --bind 'ctrl-s:execute-silent(bash -c "setMode 1")+reload(bash -c "fetch \"\$1\"" _ {q})' \
  --bind 'ctrl-c:execute-silent(bash -c "setMode 2")+reload(bash -c "fetch \"\$1\"" _ {q})' \
  --bind 'ctrl-x:reload(bash -c "fetch \"\$1\"" _ {q})+clear-query' \
  --bind 'ctrl-d:execute-silent(bash -c "togglePreviewMode")+refresh-preview' \
  --bind 'enter:reload(bash -c "handle {}")' \
  --bind 'alt-enter:execute-silent(bash -c "handleAddAndPlay {}")'