finished backend upgrades to allow multiple courses

app/utils.py

@@ -19,8 +19,8 @@ def init_serializer(app: Flask):
 def get_active_banner() -> InfoBanner | None:
     return db.session.execute(db.select(InfoBanner).where(InfoBanner.is_active)).scalar_one_or_none()
 
-def get_available_decks(app: Flask):
-    slides_dir = app.config['SLIDES_DIR']
+def get_available_decks(app: Flask, course: Course):
+    slides_dir = os.path.join(app.config['SLIDES_DIR'], course.folder)
     deck_names = [name for name in os.listdir(slides_dir) if os.path.isdir(os.path.join(slides_dir, name))]
     deck_names.sort()
     return deck_names
@@ -31,6 +31,9 @@ def generate_username() -> str:
 def generate_password() -> str:
     return cast(str, xkcd_password.generate_xkcdpassword(wordlist=words, numwords=2, delimiter="-"))
 
+def get_passwords(course: Course):
+    return [password for deck in course.decks for password in deck.passwords]    
+
 def generate_token() -> Token:
     max_tries = 100
     for _ in range(max_tries):
@@ -68,12 +71,13 @@ def retrieve_token(username : str):
 def get_unlocked_decks(token: (Token|None)):
     if token is None:
         return []
-    decks = token.decks
+    decks = [deck for deck in token.decks if deck.course_id == token.active_course_id]
     decks.sort(key=lambda deck: deck.deck)
     return decks
-
+ 
 def is_deck_unlocked(deck: str):
     token = get_token() 
+    print(token)
     if token:
         return token.is_unlocked(deck)
     else: