spotify

#!/usr/bin/env bash

# Copyright (c) 2012--2015 Harish Narayanan <mail@harishnarayanan.org>
#
# Contains numerous helpful contributions from Jorge Colindres, Thomas
# Pritchard and iLan Epstein.

# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:

# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.

# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
# BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
# ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

showHelp () {
    echo "Usage:";
    echo "  `basename $0` <command>";
    echo;
    echo "Commands:";
    echo;
    echo "  play                            # Resume playback where Spotify last left off.";
    echo "  play [song name]                # Finds a song by name and plays it.";
    echo "  play album [album name]         # Finds an album by name and plays it.";
    echo "  play artist [artist name]       # Finds an artist by name and plays it.";
    echo "  play list [playlist name]       # Finds a playlist by name and plays it.";
    echo;
    echo "  next                            # Skips to the next song in a playlist.";
    echo "  prev                            # Returns to the previous song in a playlist.";
    echo "  pos [time]                      # Jump to a specific time (in seconds) in the current song.";
    echo "  pause                           # Pauses Spotify playback.";
    echo "  quit                            # Stops playback and quits Spotify.";
    echo;
    echo "  vol up                          # Increases the volume by 10%.";
    echo "  vol down                        # Decreases the volume by 10%.";
    echo "  vol [amount]                    # Sets the volume to an amount between 0 and 100.";
    echo;
    echo "  status                          # Shows the play status, including the current song details.";
    echo "  share                           # Shows and copies the current song URL to the clipboard for sharing."
    echo;
    echo "  toggle shuffle                  # Toggle shuffle playback mode.";
    echo "  toggle repeat                   # Toggle repeat playback mode.";
}

if [ $# = 0 ]; then
    showHelp;
fi

while [ $# -gt 0 ]; do
    arg=$1;
    bold=$(tput bold);
    green=$(tput setaf 2);
    reset=$(tput sgr0);

    case $arg in
        "play"    )
            if [ $# != 1 ]; then
                # There are additional parameters
                #get the length of arguments
                array=( $@ );
                len=${#array[@]};
                SPTFY_URI="";

                if [ $2 = "album" ]; then
                    _args=${array[@]:2:$len};
                    Q=$_args;

                    echo $bold$green"Searching albums for: $Q";

                    SPTFY_URI=$( \
                        curl -s -G "https://api.spotify.com/v1/search" --data-urlencode "q=$Q" -d "type=album&limit=1&offset=0" -H "Accept: application/json" \
                        | grep -E -o "spotify:album:[a-zA-Z0-9]+" -m 1 \
                    )

                elif [ $2 = "artist" ]; then
                    _args=${array[@]:2:$len};
                    Q=$_args;

                    echo $bold$green"Searching artists for: $Q";

                    SPTFY_URI=$( \
                        curl -s -G "https://api.spotify.com/v1/search" --data-urlencode "q=$Q" -d "type=artist&limit=1&offset=0" -H "Accept: application/json" \
                        | grep -E -o "spotify:artist:[a-zA-Z0-9]+" -m 1 \
                    )

                elif [ $2 = "list" ]; then
                    _args=${array[@]:2:$len};
                    Q=$_args;

                    echo $bold$green"Searching playlists for: $Q";

                    results=$( \
                        curl -s -G "https://api.spotify.com/v1/search" --data-urlencode "q=$Q" -d "type=playlist&limit=10&offset=0" -H "Accept: application/json" \
                        | grep -E -o "spotify:user:[a-zA-Z0-9]+:playlist:[a-zA-Z0-9]+" -m 10 \
                    )

                    count=$( \
                        echo "$results" | grep -c "spotify:user" \
                    )

                    if [ "$count" -gt 0 ]; then
                        random=$(( $RANDOM % $count));

                        SPTFY_URI=$( \
                            echo "$results" | awk -v random="$random" '/spotify:user:[a-zA-Z0-9]+:playlist:[a-zA-Z0-9]+/{i++}i==random{print; exit}' \
                        )
                    fi

                else
                    if [ $2 = "track" ]; then
                        _args=${array[@]:2:$len};
                    else
                        _args=${array[@]:1:$len};
                    fi
                    Q=$_args;

                    echo $bold$green"Searching tracks for: $Q";

                    SPTFY_URI=$( \
                        curl -s -G "https://api.spotify.com/v1/search" --data-urlencode "q=$Q" -d "type=track&limit=1&offset=0" -H "Accept: application/json" \
                        | grep -E -o "spotify:track:[a-zA-Z0-9]+" -m 1 \
                    )
                fi

                if [ "$SPTFY_URI" != "" ]; then
                    echo $bold$green"Playing ($Q Search) -> Spotify URL: $SPTFY_URI";

                    osascript -e "tell application \"Spotify\" to play track \"$SPTFY_URI\"";

                else
                    echo $bold$green"No results when searching for $Q";

                fi

            else

                # play is the only param
                echo $bold$green"Playing Spotify.";
                osascript -e 'tell application "Spotify" to play';
            fi
            break ;;

        "pause"    ) echo $bold$green"Pausing Spotify.";
            osascript -e 'tell application "Spotify" to pause';
            break ;;

        "quit"    ) echo $bold$green"Quitting Spotify.";
            osascript -e 'tell application "Spotify" to quit';
            exit 1 ;;

        "next"    ) echo $bold$green"Going to next track." ;
            osascript -e 'tell application "Spotify" to next track';
            break ;;

        "prev"    ) echo $bold$green"Going to previous track.";
            osascript -e 'tell application "Spotify" to previous track';
            break ;;

        "vol"    )
            vol=`osascript -e 'tell application "Spotify" to sound volume as integer'`;
            text=$2;
            if [ $2 = "up" ]; then
                newvol=$(( vol+10 ));
            elif [ $2 = "down" ]; then
                newvol=$(( vol-10 ));
            elif [ $2 -gt 0 ]; then
              newvol=$2;
              text="to $2";
            fi

            echo $bold$green"Changing Spotify volume level $text.";
            osascript -e "tell application \"Spotify\" to set sound volume to $newvol";
            break ;;

        "toggle"  )
            if [ $2 = "shuffle" ]; then
                osascript -e "tell application \"Spotify\" to set shuffling to not shuffling";
                curr=`osascript -e 'tell application "Spotify" to shuffling'`;
                echo $bold$green"Spotify shuffling set to $curr";
            elif [ $2 = "repeat" ]; then
                osascript -e "tell application \"Spotify\" to set repeating to not repeating";
                curr=`osascript -e 'tell application "Spotify" to repeating'`;
                echo $bold$green"Spotify repeating set to $curr";
            fi
            break ;;

        "status" )
            state=`osascript -e 'tell application "Spotify" to player state as string'`;
            echo $bold$green"Spotify is currently $state.";
            if [ $state = "playing" ]; then
                artist=`osascript -e 'tell application "Spotify" to artist of current track as string'`;
                album=`osascript -e 'tell application "Spotify" to album of current track as string'`;
                track=`osascript -e 'tell application "Spotify" to name of current track as string'`;

                echo -e $reset"Artist: $artist\nAlbum: $album\nTrack: $track";
            fi
            break ;;

        "share"     )
            url=`osascript -e 'tell application "Spotify" to spotify url of current track'`;
            remove='spotify:track:'
            url=${url#$remove}
            url="http://open.spotify.com/track/$url"
            echo $bold$green"Share URL: $url";
            echo "$url" | pbcopy
            break;;

        "pos"   )
            echo $bold$green"Adjusting Spotify play position."
            osascript -e "tell application \"Spotify\" to set player position to $2";
            break;;

        "help" | * )
            showHelp;
            break ;;
    esac
done