modified: .env.example

modified:   Dockerfile
	modified:   app.py
	new file:   locales/de-DE.json
	modified:   templates/login.html
	modified:   templates/playlists.html
	modified:   templates/quiz.html

app.py

@@ -9,6 +9,7 @@ from spotipy.oauth2 import SpotifyOAuth
 import random
 from difflib import SequenceMatcher
 import re
+import json
 
 app = Flask(__name__)
 app.secret_key = os.getenv("SECRET_KEY")
@@ -16,6 +17,20 @@ app.secret_key = os.getenv("SECRET_KEY")
 # Erweiterte Berechtigungen für Web Playback SDK
 SCOPE = "user-library-read playlist-read-private streaming user-read-email user-read-private"
 
+def get_locale():
+    return os.getenv("LANG", "de-DE")
+
+def get_translations():
+    lang = get_locale()
+    path = os.path.join(os.path.dirname(__file__), "locales", f"{lang}.json")
+    try:
+        with open(path, encoding="utf-8") as f:
+            return json.load(f)
+    except Exception:
+        # Fallback auf Deutsch
+        with open(os.path.join(os.path.dirname(__file__), "locales", "de-DE.json"), encoding="utf-8") as f:
+            return json.load(f)
+
 def get_spotify_client():
     token_info = session.get("token_info", None)
     if not token_info:
@@ -150,7 +165,8 @@ def quiz(playlist_id):
         question_number=len(played_tracks),
         total_questions=len(tracks),
         score=score,
-        answered=answered
+        answered=answered,
+        translations=get_translations()
     )
 
 @app.route("/search_track", methods=["POST"])