refactor: tidy structure of source files

Fixes #79

src/things/favorite.ts

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 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 {SCSaveableThing, SCSaveableThingWithoutReferences} from './abstract/saveable-thing';
+import {SCThingMeta, SCThingType} from './abstract/thing';
+import {SCAcademicEventWithoutReferences} from './academic-event';
+import {SCArticleWithoutReferences} from './article';
+import {SCBookWithoutReferences} from './book';
+import {SCBuildingWithoutReferences} from './building';
+import {SCPersonWithoutReferences} from './person';
+import {SCPointOfInterestWithoutReferences} from './point-of-interest';
+import {SCRoomWithoutReferences} from './room';
+import {SCSportCourseWithoutReferences} from './sport-course';
+import {SCToDoWithoutReferences} from './todo';
+
+/**
+ * Types that can be made a favorite (added as a favorite)
+ */
+export type SCFavoriteDataTypes = SCAcademicEventWithoutReferences
+  | SCArticleWithoutReferences
+  | SCBookWithoutReferences
+  | SCBuildingWithoutReferences
+  | SCPersonWithoutReferences
+  | SCPointOfInterestWithoutReferences
+  | SCRoomWithoutReferences
+  | SCSportCourseWithoutReferences
+  | SCToDoWithoutReferences;
+
+/**
+ * A favorite without references
+ */
+export interface SCFavoriteWithoutReferences
+  extends SCSaveableThingWithoutReferences {
+  // noop
+}
+
+/**
+ * A favorite
+ *
+ * @validatable
+ * @indexable
+ */
+export interface SCFavorite
+  extends SCSaveableThing<SCFavoriteDataTypes>, SCFavoriteWithoutReferences {
+  /**
+   * Type of a favorite
+   */
+  type: SCThingType.Favorite;
+}
+
+/**
+ * Meta information about a favorite
+ */
+export class SCFavoriteMeta
+  extends SCThingMeta {
+}