# shows a user's saved tracks (need to be authenticated via oauth)

import sys
import spotipy
import spotipy.util as util

scope = 'user-library-read'

if len(sys.argv) > 1:
    username = sys.argv[1]
else:
    print("Usage: %s username" % (sys.argv[0],))
    sys.exit()


def show_tracks(results):
    for item in results['items']:
        track = item['track']
        print("%32.32s %s" % (track['artists'][0]['name'], track['name']))


token = util.prompt_for_user_token(username, scope)

if token:
    sp = spotipy.Spotify(auth=token)
    results = sp.current_user_saved_tracks()
    show_tracks(results)
    while results['next']:
        results = sp.next(results)
        show_tracks(results)
else:
    print("Can't get token for", username)