feat: add different origin types: remote and user

Related to #12

src/core/Thing.ts

@@ -75,7 +75,7 @@ export interface SCThing {
   /**
    * Origin of the thing
    */
-  origin: SCThingOrigin;
+  origin: SCThingRemoteOrigin | SCThingUserOrigin;
   /**
    * Translations of specific values of the object
    *
@@ -96,15 +96,12 @@ export interface SCThing {
   url?: string;
 }
 
+export type SCThingOriginType = 'remote' | 'user';
+
 /**
  * Origin of a thing
  */
 export interface SCThingOrigin {
-  /**
-   * When the thing was indexed last from the origin
-   */
-  indexed: SCISO8601Date;
-
   /**
    * Maintainer of the origin
    *
@@ -117,6 +114,21 @@ export interface SCThingOrigin {
    */
   modified?: SCISO8601Date;
 
+  /**
+   * Type of the origin
+   */
+  type: SCThingOriginType;
+}
+
+/**
+ * Remote origin of a thing
+ */
+export interface SCThingRemoteOrigin extends SCThingOrigin {
+  /**
+   * When the thing was indexed last from the origin
+   */
+  indexed: SCISO8601Date;
+
   /**
    * Name of the origin
    */
@@ -134,12 +146,42 @@ export interface SCThingOrigin {
    */
   responsibleEntity?: SCPerson | SCOrganization;
 
+  /**
+   * Type of the origin
+   */
+  type: 'remote';
+
   /**
    * Main URL of the origin
    */
   url?: string;
 }
 
+/**
+ * User origin of a thing (data created through user interaction)
+ */
+export interface SCThingUserOrigin extends SCThingOrigin {
+  /**
+   * When the thing was created
+   */
+  created: SCISO8601Date;
+
+  /**
+   * If it is deleted or not, defaults to false
+   */
+  deleted?: boolean;
+
+  /**
+   * Type of the origin
+   */
+  type: 'user';
+
+  /**
+   * When the saved thing was last updated with the latest state (e.g. from the backend)
+   */
+  updated?: SCISO8601Date;
+}
+
 /**
  * Meta information about things
  */