feat: add personal ics feeds for assigned tasks

app/routes/settings.py

@@ -45,6 +45,7 @@ def _save_avatar(file_storage) -> str:
 @bp.route("", methods=["GET", "POST"])
 @login_required
 def index():
+    current_user.ensure_calendar_feed_token()
     form = SettingsProfileForm(original_email=current_user.email, obj=current_user)
     admin_form = AdminUserForm(prefix="admin")
     quick_task_config_form = QuickTaskConfigForm(prefix="quickconfig")
@@ -80,6 +81,7 @@ def index():
         quick_task_config=quick_task_config,
         users=User.query.order_by(User.is_admin.desc(), User.name.asc()).all(),
         earned_badges=earned_badges_for_user(current_user.id),
+        calendar_feed_url=url_for("main.calendar_feed", token=current_user.calendar_feed_token, _external=True),
         push_ready=push_enabled(),
         has_subscription=bool(subscriptions),
         settings_tabs=_settings_tabs(),
@@ -87,6 +89,16 @@ def index():
     )
 
 
+@bp.route("/calendar-feed/regenerate", methods=["POST"])
+@login_required
+def regenerate_calendar_feed():
+    current_user.calendar_feed_token = None
+    current_user.ensure_calendar_feed_token()
+    db.session.commit()
+    flash("Dein persönlicher Kalender-Link wurde neu erzeugt.", "success")
+    return redirect(url_for("settings.index"))
+
+
 @bp.route("/badges")
 @login_required
 def badges():