feat: add saveable thing for saving user/client data

Closes #12

src/core/base/SaveableThing.ts

@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2018, 2019 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 {SCThing, SCThingUserOrigin} from '../Thing';
+
+/**
+ * An encapsulation of the data (e.g. a thing) that is saved, which provides additional information.
+ */
+export interface SCSaveableThing<T extends SCThing> extends SCThing {
+  /**
+   * The contained data
+   */
+  data: T;
+
+  /**
+   * Type of the origin
+   */
+  origin: SCThingUserOrigin;
+}

src/core/things/Favorite.ts

@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2018 StApps
+ * Copyright (C) 2018, 2019 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.
@@ -12,8 +12,8 @@
  * 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 {SCThing, SCThingMeta, SCThingType} from '../Thing';
+import {SCSaveableThing} from '../base/SaveableThing';
-import {SCISO8601Date} from '../types/Time';
+import {SCThingMeta, SCThingType} from '../Thing';
 import {SCAcademicEventWithoutReferences} from './AcademicEvent';
 import {SCArticleWithoutReferences} from './Article';
 import {SCBookWithoutReferences} from './Book';
@@ -24,41 +24,9 @@ import {SCRoomWithoutReferences} from './Room';
 import {SCSportCourseWithoutReferences} from './SportCourse';
 
 /**
- * A favorite without references
+ * Types that can be made a favorite (added as a favorite)
  */
-export interface SCFavoriteWithoutReferences extends SCThing {
+export type SCFavoriteDataTypes = SCAcademicEventWithoutReferences
-  /**
-   * When the favorite was last changed.
-   */
-  changed: SCISO8601Date;
-
-  /**
-   * When the favorite was created.
-   */
-  created: SCISO8601Date;
-
-  /**
-   * If it is deleted or not, defaults to false.
-   */
-  deleted?: boolean;
-
-  /**
-   * Type of a favorite
-   */
-  type: SCThingType.Favorite;
-}
-
-/**
- * A favorite
- *
- * @validatable
- */
-export interface SCFavorite extends SCFavoriteWithoutReferences {
-  /**
-   * The contained thing.
-   */
-  data:
-    SCAcademicEventWithoutReferences
   | SCArticleWithoutReferences
   | SCBookWithoutReferences
   | SCBuildingWithoutReferences
@@ -67,9 +35,12 @@ export interface SCFavorite extends SCFavoriteWithoutReferences {
   | SCRoomWithoutReferences
   | SCSportCourseWithoutReferences;
 
-  /**
+/**
-   * Type of a favorite
+ * A favorite
+ *
+ * @validatable
  */
+export interface SCFavorite extends SCSaveableThing<SCFavoriteDataTypes> {
   type: SCThingType.Favorite;
 }