Added the option management, and moved the configuration of the default currency, the default account for the income and expenses log, and the recurring expenses and incomes to the options.

src/accounting/utils/permission.py

@@ -63,6 +63,9 @@ data."""
 __can_edit_func: t.Callable[[], bool] = lambda: True
 """The callback that returns whether the current user can edit the accounting
 data."""
+__can_admin_func: t.Callable[[], bool] = lambda: True
+"""The callback that returns whether the current user can administrate the
+accounting settings."""
 
 
 def can_view() -> bool:
@@ -87,6 +90,20 @@ def can_edit() -> bool:
     return __can_edit_func()
 
 
+def can_admin() -> bool:
+    """Returns whether the current user can administrate the accounting
+    settings.
+
+    The user has to log in.
+
+    :return: True if the current user can administrate the accounting settings,
+        or False otherwise.
+    """
+    if get_current_user() is None:
+        return False
+    return __can_admin_func()
+
+
 def init_app(bp: Blueprint, user_utils: UserUtilityInterface) -> None:
     """Initializes the application.
 
@@ -94,8 +111,10 @@ def init_app(bp: Blueprint, user_utils: UserUtilityInterface) -> None:
     :param user_utils: The user utilities.
     :return: None.
     """
-    global __can_view_func, __can_edit_func
+    global __can_view_func, __can_edit_func, __can_admin_func
     __can_view_func = user_utils.can_view
     __can_edit_func = user_utils.can_edit
+    __can_admin_func = user_utils.can_admin
     bp.add_app_template_global(user_utils.can_view, "accounting_can_view")
     bp.add_app_template_global(user_utils.can_edit, "accounting_can_edit")
+    bp.add_app_template_global(user_utils.can_admin, "accounting_can_admin")