import sys
import spotipy

''' shows the albums and tracks for a given artist.
'''

def get_artist(name):
    results = sp.search(q='artist:' + name, type='artist')
    items = results['artists']['items']
    if len(items) > 0:
        return items[0]
    else:
        return None

def show_artist_albums(artist):
    albums = []
    results = sp.artist_albums(artist['id'], album_type='album')
    albums.extend(results['items'])
    while results['next']:
        results = sp.next(results)
        albums.extend(results['items'])
    seen = set() # to avoid dups
    albums.sort(key=lambda album:album['name'].lower())
    for album in albums:
        name = album['name']
        if name not in seen:
            print((' ' + name))
            seen.add(name)

if __name__ == '__main__':
    sp = spotipy.Spotify()

    if len(sys.argv) < 2:
        print(('Usage: {0} artist name'.format(sys.argv[0])))
    else:
        name = ' '.join(sys.argv[1:])
        artist = get_artist(name)
        if artist:
            show_artist_albums(artist)
        else:
            print("Can't find that artist")