.bash_profile snippet for listening to Digitally Imported sites' radio streams from the command line

radio.bash

# Usage:
# $ radio <network> <channel-key>
# Where network is a network key as specified in http://api.audioaddict.com/v1/networks
# and where channel-key is the name of a channel as seen in a channel page URL
# The script will ask for a listen key and save it in ~/.listen_key if you don't
# have one on file yet.
radio() {
  # Modify playCmd to launch the stream with a different player
  local playCmd="mplayer "
  local network=$1
  local channel=$2
  local domain=""
  local website=""
  local listenKey="-"
  local listenKeyFile="$HOME/.listen_key"

  if [[ -z "$network" ]]; then
    echo "Usage: $ radio <network> <channel-key>"
    return 1
  fi

  if [[ -z "$channel" ]]; then
    echo "Usage: $ radio <network> <channel-key>"
    return 1
  fi

  # Note: currently it's hardcoded to use prem1, but ideally it'd pick from
  # a random available server instead.
  case "$network" in
    "di")
      domain="prem1.di.fm"
      website="di.fm"
      ;;
    "radiotunes")
      domain="prem1.radiotunes.com"
      website="radiotunes.com"
      ;;
    "jazzradio")
      domain="prem1.jazzradio.com"
      websites="jazzradio.com"
      ;;
    "rockradio")
      domain="prem1.rockradio.com"
      website="rockradio.com"
      ;;
    "classicalradio")
      domain="prem1.classicalradio.com"
      website="classicalradio.com"
      ;;
    *)
      echo "Not a valid network specified. Got: $domain"
      echo "Available networks: di, radiotunes, jazzradio, rockradio, classicalradio"
      return 1
  esac

  if [[ ! -f $listenKeyFile ]]; then
    echo "There is no listen key on file. Please copy the listen key from"
    echo "https://www.${website}/settings"
    echo "Leave blank to cancel."
    read -p 'Listen key: ' listenKey

    if [[ -z "$listenKey" ]]; then
      echo "Aborting due to blank listen key."
      return 1
    fi

    echo "$listenKey" > "$listenKeyFile"
  fi

  listenKey=$(cat $listenKeyFile)

  local url="http://${domain}:80/${channel}?${listenKey}"
  $playCmd $url
}

# Possible future enhancements: autocomplete channel names. Will require some
# API response mangling.