[WIP] Add Spotify playlist

.env.template

@@ -1,6 +1,8 @@
 SPOTIPY_CLIENT_ID="xxxx"
 SPOTIPY_CLIENT_SECRET="xxxx"
 SPOTIFY_REDIRECT_URI="xxxx"
+SPOTIFY_USERNAME="xxxx"
+SPOTIFY_PLAYLIST_ID="xxxx"
 GOOGLE_APPLICATION_CREDENTIALS="xxxx"
 WHOAMI="xxxx"
 POSTGRES_URI="xxxx"

c3po/playlist/spotify/core.py

@@ -0,0 +1,48 @@
+import os
+import re
+from dotenv import load_dotenv, find_dotenv
+from music_metadata_extractor import SongData
+from spotipy import Spotify
+from spotipy.oauth2 import SpotifyOAuth
+
+# env variables: SPOTIPY_CLIENT_ID, SPOTIPY_CLIENT_SECRET, SPOTIFY_USERNAME, SPOTIFY_PLAYLIST_ID
+load_dotenv(find_dotenv())
+USERNAME = os.getenv('SPOTIPY_USERNAME')
+PLAYLIST_ID = os,getenv('SPOTIFY_PLAYLIST_ID')
+SCOPE='playlist-modify-public'
+
+
+def _get_spotify_client():
+    return Spotify(auth_manager=SpotifyOAuth(username=USERNAME, scope=SCOPE))
+
+def add_song_to_playlist(spotify_track_id):
+    spotify_client = _get_spotify_client()
+    user_id = spotify_client.current_user()['id']
+    spotify_client.user_playlist_add_tracks(user=user_id, playlist_id=PLAYLIST_ID, tracks=[spotify_track_id])
+
+def get_spotify_id(url):
+    spotify_pattern = re.compile(
+        r"""
+        https?:\/\/open\.spotify\.com\/track\/(?P<id>[a-zA-Z0-9]+)
+        """,
+        re.VERBOSE
+    )
+    spotify_match = spotify_pattern.match(url)
+    if spotify_match:
+        return spotify_match.group("id")
+    else:
+        yt_pattern = re.compile(
+            r"""
+            (https?://)?(www\.)?(youtube|youtu|youtube-nocookie)\.
+            (com|be)/(watch\?v=|embed/|v/|.+\?v=)?
+            (?P<id>[A-Za-z0-9\-=_]{11})""",
+            re.VERBOSE,
+        )
+        yt_match = yt_pattern.match(url)
+        if(yt_match):
+            data = SongData(url)
+            if data.track:
+                return data.track.provider_id
+
+
+