radio

#!/usr/local/bin/bash


# README: this script required bash 4+ (it uses associative arrays, which are supported since bash 4)

declare -A radios
radios['jungle']='http://stream5.jungletrain.net:8000/'
radios['soundart']='http://icecast.commedia.org.uk:8000/soundart.mp3'
radios['resonance']='http://stream.resonance.fm/resonance'
radios['reboot']='http://87.118.122.220:8002/stream?type=.mp3'
radios['corax']='https://streaming.fueralle.org/corax_192.mp3'
radios['panik']='https://streaming.domainepublic.net/radiopanik.ogg.m3u'
radios['ARA']='https://s1.voscast.com:11187/RadioARA.mp3'
# to add a radio, duplicate the line and change the name and URL, like radios['name']='URL'

declare -A players
players['VLC']='/Applications/VLC.app/Contents/MacOS/VLC -I curses'
players['mocp']='mocp'
players['mplayer']='mplayer'
# to add a player, duplicate the line and change the name and command line invocation, like players['name']='command'

# defaults
verbose="False"

list_radios()
{
echo "Available radios:"
iter=1
for key in "${!radios[@]}"; do
    echo "$iter. $key at (${radios[$key]})"
    ((iter = iter+1))
done
}

list_players()
{
echo "Available command line players:"
iter=1
for key in "${!players[@]}"; do
    echo "$iter. $key at (${players[$key]})"
    ((iter = iter+1))
done
}



help()
{
   echo "radio is a bash/shell script for Unix (incl. Mac) that opens a web radiio and starts playing it with a particular command line music player. "
   echo
   echo "Usage:\n> radio [-h|p|l]"
   echo "options:"
   echo "-h --help                    	Display this help."
   echo "-r --radio <name>            	Play radio of <name> (see --list for list of available radios)."
   echo "-R --ramdom             	Play a radio at RANDOM (see --list for list of available radios)."
   echo "-p --player <name>           	Play radio using the <name> player (see --list-players for list of available players)."
   echo "-pa --player-args <\"args\">	Pass additional arguments (use quotes around them) to your selected player."
   echo "-l --list                    	Display available radios (add more by editing the script)."
   echo "-lr --list-radios            	Display available radios (add more by editing the script)."
   echo "-lp --list-players           	Display available radios (add more by editing the script)."
   echo
}

function parse_params() {
    local param
    while [[ $# -gt 0 ]]; do
        param="$1"
        shift
        case $param in
            -h | --help)
                help;
                exit 0
                ;;
            -l | --list)
                list_radios;
                exit 0
                ;;
            -lr | --list-radios)
                list_radios;
                exit 0
                ;;
            -lp | --list-players)
                list_players;
                exit 0
                ;;
            -p | --player) #player by name
                player=$param
		last_arg="player"
                ;;
            -r | --radio) #radio by name
                radio=$param
		last_arg="radio"
                ;;
            -R | --random) #radio chosen randomly
		range=${#radios[@]}
		((range=range-1))
		random=`jot -r 1 0 $range}`
		counter=0
		for i in "${!radios[@]}"
		do
		    if [ $counter -eq $random ]
		    then
                        radio=$i
		    fi
		    ((counter=counter+1))
		done
		;;
            -pa | --player-args) #additional args for player
                player_args=$param
		last_arg="player_args"
                ;;
            -u | --url) #radio by url
                url=$params
		last_arg="url"
		;;
            -V | --verbose) 
                verbose="True"
		;;
            *)
		case $last_arg in
            	  player)
			player=$param
			;;
            	  radio)
			radio=$param
			;;
            	  player_args)
			player_args=$param
			;;
            	  url)
			url=$param
			;;
		  *) 
			echo "Invalid parameter was provided: $param"
			;;
		esac
		;;
        esac
    done
}

parse_params "$@"
if [ $verbose == "True" ]
then
    echo "-------"
    echo "player: $player (with args $player_args)"
    echo "radio: $radio (or at forced url: $url)"
    echo "-------"
fi
if [$url -ne ""]; then
    ${players[$player]} $player_args ${radios[$radio]}
else 
    ${players[$player]} $player_args $url
fi