fix lots of stuff, migrate to new client api

lenticular_cloud/translations/__init__.py

@@ -1,4 +1,5 @@
 from flask import g, request, Flask
+from flask_babel import Babel
 from flask_login import current_user
 from typing import Optional
 from lenticular_cloud.model import db, User
@@ -8,38 +9,41 @@ LANGUAGES = {
     'de': 'Deutsch'
 }
 
+babel = Babel()
 
-def init_babel(app: Flask) -> None:
-    babel = app.babel
 
-    @babel.localeselector
-    def get_locale() -> str:
-        # if a user is logged in, use the locale from the user settings
-        user = current_user # type: Optional[User]
-        return 'de'
+@babel.localeselector
+def get_locale() -> str:
+    # if a user is logged in, use the locale from the user settings
+    user = current_user # type: Optional[User]
+    return 'de'
 
-        # prefer lang argument
-        if 'lang' in request.args:
-            lang = request.args['lang'] # type: str
-            if lang in LANGUAGES:
-                if not isinstance(user, User):
-                        return lang
-                user.locale = lang
-                db.session.commit()
+    # prefer lang argument
+    if 'lang' in request.args:
+        lang = request.args['lang'] # type: str
+        if lang in LANGUAGES:
+            if not isinstance(user, User):
+                    return lang
+            user.locale = lang
+            db.session.commit()
 
-        if isinstance(user, User):
-            return user.locale
-        # otherwise try to guess the language from the user accept
-        # header the browser transmits.  We support de/fr/en in this
-        # example.  The best match wins.
-        return request.accept_languages.best_match(['de'])
+    if isinstance(user, User):
+        return user.locale
+    # otherwise try to guess the language from the user accept
+    # header the browser transmits.  We support de/fr/en in this
+    # example.  The best match wins.
+    return request.accept_languages.best_match(['de'])
 
-    @babel.timezoneselector
-    def get_timezone() -> Optional[str]:
+@babel.timezoneselector
+def get_timezone() -> Optional[str]:
 #       user = getattr(g, 'user', None)
 #       if user is not None:
 #           return user.timezone
-        return None
+    return None
+
+def init_babel(app: Flask) -> None:
+
+    babel.init_app(app)
 
     @app.context_processor
     def get_locale_jinja() -> dict:
@@ -47,3 +51,4 @@ def init_babel(app: Flask) -> None:
             return get_locale()
 
         return dict(get_locale=get_locale_)
+    return None