get spotify token per interval on different thread

.gitignore

@@ -9,4 +9,5 @@ config/
 .venv/
 logs/
 devscripts/
+test.py
 

bot/library/Spotify.py

@@ -1,5 +1,7 @@
 import requests
 import random
+import time
+import threading
 
 class Spotify:
     def __init__(self, client_id, client_secret) -> None:
@@ -10,63 +12,100 @@ def __init__(self, client_id, client_secret) -> None:
         self.client_id = client_id
         self.client_secret = client_secret
         self.s = requests.Session()
+
         self.token = self.get_access_token(
             self.s,
-            client_id=client_id,
-            client_secret=client_secret
+            client_id=self.client_id,
+            client_secret=self.client_secret
         )
-
+        self._thread = None
+        self.start_token_thread()
+
     @staticmethod
     def get_access_token(session, client_id, client_secret):
 
-        # requesting new token...
         r = session.post(
             url='https://accounts.spotify.com/api/token',
             data={"grant_type": "client_credentials"},
             auth=(client_id, client_secret),
         )
         r.raise_for_status()
-        return r.json().get('access_token', '')
+        res = r.json()
+        return res.get('access_token', '')
+
+    def start_token_thread(self):
+
+        if self._thread is None or not self._thread.is_alive():
+            self._thread = threading.Thread(target=self.update_token)
+            self._thread.start()
 
+    def update_token(self):
+
+        while True:
+            try:
+                self.token = self.get_access_token(
+                    self.s,
+                    client_id=self.client_id,
+                    client_secret=self.client_secret
+                )
+            except requests.HTTPError as error:
+                raise TimeoutError('Failed to verify credentials') from error
+            time.sleep(3500)  # ~ one hour interval
+
     def get_playlist_tracks(self, playlist_id):
         """Get 10 songs in random order from spotify playlist"""
-
-        for i in range(5):
 
-            r = self.s.get(
-                url=f'https://api.spotify.com/v1/playlists/{playlist_id}',
-                headers = {'Authorization': f"Bearer {self.token}"}
-            )
-            data = r.json()
-            if 'error' in data:
-                if data['error'].get('status', None) == 401:  # invalid access / expired token
-                    self.token = self.get_access_token(
-                        session=self.s,
-                        client_id=self.client_id,
-                        client_secret=self.client_secret,
-                    )
-                else:
-                    r.raise_for_status()
-            else:
-                queries = []
-                data = r.json()
-                tracks = data['tracks']['items']
-                random.shuffle(tracks)  # shuffle playlist
+        r = self.s.get(
+            url=f'https://api.spotify.com/v1/playlists/{playlist_id}',
+            headers = {'Authorization': f"Bearer {self.token}"}
+        )
+        data = r.json()
+        # handle errors
+        tracks = data['tracks']['items']
+        random.shuffle(tracks)  # shuffle playlist
+        queries = []
+        for j, track in enumerate(tracks):
+            if j == 10:
+                break
 
-                for j, track in enumerate(tracks):
-                    if j == 10:
-                        break
+            search_query = track['track']['name']
+            for artist in track['track']['artists']:
+                search_query += ' ' + artist['name']
+            queries.append(search_query)
+
+        return {
+            'name': data['name'],
+            'tracks': queries
+        }
+
+    def search(self, query: str, qtype='track'):
+
+        r = self.s.get(
+            url=f'https://api.spotify.com/v1/search?q={query}&type={qtype}',
+            headers = {'Authorization': f"Bearer {self.token}"}
+        )
+        data = r.json()
+        # handle errors
+        if not ('tracks' in data and 'items' in data['tracks']):
+            return None 
+
+        track = data['tracks']['items'][0]
+        # if track['type'] != 'track': # make sure search result is a track
+        #     return None
+        return track
 
-                    search_query = track['track']['name']
-                    for artist in track['track']['artists']:
-                        search_query += ' ' + artist['name']
-                    queries.append(search_query)
-
-                return {
-                    'name': data['name'],
-                    'tracks': queries
-                }
-        raise TimeoutError('Failed to verify credentials')
 
-    def search(self, query: str):
-        pass
+    def get_related(self, spotify_id: str):
+
+        if not spotify_id:
+            return None
+
+        r = self.s.get(
+            url=f'https://api.spotify.com/v1/recommendations?seed_tracks={spotify_id}',
+            headers = {'Authorization': f"Bearer {self.token}"}
+        )
+
+        data = r.json()
+        track = data['tracks'][0]
+        return track
+