feat: add range filter, date sorting support

src/protocol/search/sorts/generic.ts

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C) 2020 StApps
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation, version 3.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+import {SCSearchAbstractSort, SCSearchAbstractSortArguments} from '../sort';
+
+/**
+ * Sort instruction for generic sort such as date
+ */
+export interface SCGenericSort extends SCSearchAbstractSort<SCSearchAbstractSortArguments> {
+  /**
+   * @see SCSearchAbstractSort.type
+   */
+  type: 'generic';
+}