0.67.0

CHANGELOG.md

@@ -1,3 +1,149 @@
+## [0.66.1](https://gitlab.com/openstapps/core/compare/v0.66.0...v0.66.1) (2022-05-27)
+
+
+
+# [0.66.0](https://gitlab.com/openstapps/core/compare/v0.65.1...v0.66.0) (2022-05-11)
+
+
+### Features
+
+* add geo filter envelope support ([484be6a](https://gitlab.com/openstapps/core/commit/484be6a890d743601efa5d40d33ea2c619f3126d))
+
+
+
+## [0.65.1](https://gitlab.com/openstapps/core/compare/v0.65.0...v0.65.1) (2022-04-04)
+
+
+
+# [0.65.0](https://gitlab.com/openstapps/core/compare/v0.64.0...v0.65.0) (2022-04-04)
+
+
+
+# [0.64.0](https://gitlab.com/openstapps/core/compare/v0.63.0...v0.64.0) (2022-03-21)
+
+
+
+# [0.63.0](https://gitlab.com/openstapps/core/compare/v0.62.0...v0.63.0) (2022-01-24)
+
+
+### Bug Fixes
+
+* add auth object to index route ([e149931](https://gitlab.com/openstapps/core/commit/e14993114f0ec370775010eee4ad0d302a0beebb))
+
+
+
+# [0.62.0](https://gitlab.com/openstapps/core/compare/v0.61.0...v0.62.0) (2022-01-21)
+
+
+### Bug Fixes
+
+* add missing lastPublished to SCCreativeWork ([e0adb23](https://gitlab.com/openstapps/core/commit/e0adb2332ec24ce388c4c008b51b7aa941948532))
+
+
+
+# [0.61.0](https://gitlab.com/openstapps/core/compare/v0.60.0...v0.61.0) (2022-01-21)
+
+
+
+# [0.60.0](https://gitlab.com/openstapps/core/compare/v0.59.0...v0.60.0) (2022-01-21)
+
+
+
+# [0.59.0](https://gitlab.com/openstapps/core/compare/v0.58.0...v0.59.0) (2022-01-20)
+
+
+
+# [0.58.0](https://gitlab.com/openstapps/core/compare/v0.57.0...v0.58.0) (2022-01-18)
+
+
+
+# [0.57.0](https://gitlab.com/openstapps/core/compare/v0.56.0...v0.57.0) (2022-01-18)
+
+
+### Features
+
+* extend config to describe auth providers ([7553620](https://gitlab.com/openstapps/core/commit/7553620a5d330ebfb66461afeab700e36bd37165))
+
+
+
+# [0.56.0](https://gitlab.com/openstapps/core/compare/v0.55.0...v0.56.0) (2021-12-17)
+
+
+
+# [0.55.0](https://gitlab.com/openstapps/core/compare/v0.54.0...v0.55.0) (2021-12-15)
+
+
+
+# [0.54.0](https://gitlab.com/openstapps/core/compare/v0.53.0...v0.54.0) (2021-11-17)
+
+
+### Features
+
+* add SCAssessment ([7a2e0f2](https://gitlab.com/openstapps/core/commit/7a2e0f20d1c64ab1deb7ab30bfb4bab4daaabd6d))
+
+
+
+# [0.53.0](https://gitlab.com/openstapps/core/compare/v0.52.0...v0.53.0) (2021-10-19)
+
+
+
+# [0.52.0](https://gitlab.com/openstapps/core/compare/v0.51.0...v0.52.0) (2021-09-28)
+
+
+### Features
+
+* add about config ([aa294c4](https://gitlab.com/openstapps/core/commit/aa294c4e29e9191bef6d79487b0b321fbc34f6fb))
+
+
+
+# [0.51.0](https://gitlab.com/openstapps/core/compare/v0.50.0...v0.51.0) (2021-09-10)
+
+
+### Bug Fixes
+
+* add physicalobject to book categories ([ded8e7d](https://gitlab.com/openstapps/core/commit/ded8e7dfd51094c02a86e1383a4e94c069c10e64))
+
+
+
+# [0.50.0](https://gitlab.com/openstapps/core/compare/v0.49.5...v0.50.0) (2021-09-01)
+
+
+
+## [0.49.5](https://gitlab.com/openstapps/core/compare/v0.49.3...v0.49.5) (2021-08-27)
+
+
+### Bug Fixes
+
+* test resources from hds2 ([dfe35d7](https://gitlab.com/openstapps/core/commit/dfe35d71a38c35064726365f99714abff3b30ba6))
+
+
+
+## [0.49.3](https://gitlab.com/openstapps/core/compare/v0.49.2...v0.49.3) (2021-08-18)
+
+
+
+## [0.49.2](https://gitlab.com/openstapps/core/compare/v0.49.1...v0.49.2) (2021-08-17)
+
+
+
+## [0.49.1](https://gitlab.com/openstapps/core/compare/v0.49.0...v0.49.1) (2021-08-13)
+
+
+### Bug Fixes
+
+* documentation generation ([8a28d6f](https://gitlab.com/openstapps/core/commit/8a28d6fa8657d778d6ae0d38cda7da3531d6478c))
+
+
+
+# [0.49.0](https://gitlab.com/openstapps/core/compare/v0.48.0...v0.49.0) (2021-08-12)
+
+
+### Features
+
+* add elasticsearch mappings to build ([21eeecd](https://gitlab.com/openstapps/core/commit/21eeecd5ee0d68a4faa93bb70d2187ce35807b01))
+
+
+
 # [0.48.0](https://gitlab.com/openstapps/core/compare/v0.47.0...v0.48.0) (2021-07-14)
 
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@openstapps/core",
-  "version": "0.49.0",
+  "version": "0.67.0",
   "description": "StAppsCore - Generalized model of data",
   "keywords": [
     "Model",
@@ -18,7 +18,7 @@
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s -r 0 && git add CHANGELOG.md && git commit -m 'docs: update changelog'",
     "check-configuration": "openstapps-configuration",
     "compile": "rimraf lib && tsc",
-    "documentation": "typedoc --name \"@openstapps/core\" --includeDeclarations --mode modules --out docs --readme README.md --listInvalidSymbolLinks lib",
+    "documentation": "typedoc --name \"@openstapps/core\" --includeVersion --out docs --readme README.md --listInvalidSymbolLinks --entryPointStrategy expand src",
     "pack": "openstapps-core-tools pack",
     "postversion": "npm run changelog",
     "prepublishOnly": "npm ci && npm run build",
@@ -45,36 +45,39 @@
     "Wieland Schöbl"
   ],
   "dependencies": {
-    "@openstapps/core-tools": "0.23.2",
+    "@openstapps/core-tools": "0.30.1",
     "@types/geojson": "1.0.6",
     "@types/json-patch": "0.0.30",
-    "@types/json-schema": "7.0.9",
-    "@types/node": "14.17.9",
-    "fast-clone": "1.5.13",
+    "@types/json-schema": "7.0.11",
+    "@types/node": "14.18.18",
     "fast-deep-equal": "3.1.3",
-    "http-status-codes": "2.1.4",
+    "http-status-codes": "2.2.0",
     "json-patch": "0.7.0",
-    "json-schema": "0.3.0",
+    "json-schema": "0.4.0",
+    "rfdc": "1.3.0",
     "ts-optchain": "0.1.8"
   },
   "devDependencies": {
-    "@openstapps/configuration": "0.27.0",
-    "@openstapps/es-mapping-generator": "0.0.3",
-    "@openstapps/logger": "0.7.0",
-    "@testdeck/mocha": "0.1.2",
-    "@types/chai": "4.2.21",
-    "@types/rimraf": "3.0.1",
-    "chai": "4.3.4",
+    "@openstapps/configuration": "0.29.1",
+    "@openstapps/es-mapping-generator": "0.1.0",
+    "@openstapps/logger": "0.8.1",
+    "@testdeck/mocha": "0.2.0",
+    "@types/chai": "4.3.1",
+    "@types/lodash": "4.14.182",
+    "@types/mocha": "9.1.1",
+    "@types/rimraf": "3.0.2",
+    "chai": "4.3.6",
     "conditional-type-checks": "1.0.5",
-    "conventional-changelog-cli": "2.1.1",
-    "mocha": "8.4.0",
+    "conventional-changelog-cli": "2.2.2",
+    "lodash": "4.17.21",
+    "mocha": "10.0.0",
     "nyc": "15.1.0",
     "rimraf": "3.0.2",
-    "source-map-support": "0.5.19",
-    "surge": "0.23.0",
-    "ts-node": "9.1.1",
+    "source-map-support": "0.5.21",
+    "surge": "0.23.1",
+    "ts-node": "10.8.0",
     "tslint": "6.1.3",
-    "typedoc": "0.21.5",
+    "typedoc": "0.22.15",
     "typescript": "4.3.5"
   },
   "nyc": {

src/config/app.ts

@@ -15,7 +15,9 @@
 // tslint:disable-next-line:no-implicit-dependencies
 import {Polygon} from 'geojson';
 import {SCTranslations} from '../general/i18n';
+import {SCMap} from '../general/map';
 import {SCLanguageSetting, SCSetting, SCUserGroupSetting} from '../things/setting';
+import {SCFeatureConfiguration} from './feature';
 
 /**
  * An app configuration menu item
@@ -80,15 +82,22 @@ export interface SCAppConfigurationMenuCategory {
  * An app configuration
  */
 export interface SCAppConfiguration {
+  /**
+   * The about page
+   *
+   * Mapping route -> page config
+   */
+  aboutPages: SCMap<SCAboutPage>;
+
   /**
    * Polygon that encapsulates the main campus
    */
   campusPolygon: Polygon;
 
   /**
-   * A list of features to en- or disable
+   * Maps of enabled features (plugins and external services)
    */
-  features: SCAppConfigurationFeature;
+  features: SCFeatureConfiguration;
 
   /**
    * A URL where images are available
@@ -127,16 +136,6 @@ export interface SCAppConfiguration {
   url?: string;
 }
 
-/**
- * Map of features
- */
-export interface SCAppConfigurationFeature {
-  /**
-   * Whether or not widgets are enabled
-   */
-  widgets: boolean;
-}
-
 /**
  * URLs of published apps
  */
@@ -174,3 +173,147 @@ export interface SCAppConfigurationMenuCategoryTranslationName {
    */
   name: string;
 }
+
+export enum SCAboutPageContentType {
+  SECTION = 'section',
+  ROUTER_LINK = 'router link',
+  TABLE = 'table',
+  MARKDOWN = 'markdown',
+}
+
+export interface SCAboutPageTranslationTitle {
+  /**
+   * Translation of the title
+   */
+  title: string;
+}
+
+export interface SCAboutPageTranslationValue {
+  /**
+   * Translation of the value
+   */
+  value: string;
+}
+
+/**
+ * A (mostly) self-contained section, akin to markdown `# Title`
+ */
+export interface SCAboutPageSection {
+  /**
+   * If the section should be contained in a card
+   */
+  card?: true;
+
+  /**
+   * The content of the section
+   */
+  content: SCAboutPageContent;
+
+  /**
+   * The title of the section
+   */
+  title: string;
+
+  /**
+   * Translations
+   */
+  translations: SCTranslations<SCAboutPageTranslationTitle>;
+
+  /**
+   * Type
+   */
+  type: SCAboutPageContentType.SECTION;
+}
+
+/**
+ * A router link that can lead to a new page
+ *
+ * For external links, prefer markdown `[destination](link)`
+ */
+export interface SCAboutPageRouterLink {
+  /**
+   * Icon of the destination
+   */
+  icon?: string;
+
+  /**
+   * Router link
+   */
+  link: string;
+
+  /**
+   * Title of the destination
+   */
+  title: string;
+
+  /**
+   * Translations
+   */
+  translations: SCTranslations<SCAboutPageTranslationTitle>;
+
+  /**
+   * Type
+   */
+  type: SCAboutPageContentType.ROUTER_LINK;
+}
+
+/**
+ * A simple table element
+ */
+export interface SCAboutPageTable {
+  /**
+   * Rows of the table
+   */
+  rows: SCAboutPageContent[][];
+
+  /**
+   * Type
+   */
+  type: SCAboutPageContentType.TABLE;
+}
+
+/**
+ * A markdown element
+ */
+export interface SCAboutPageMarkdown {
+  /**
+   * Translations
+   */
+  translations: SCTranslations<SCAboutPageTranslationValue>;
+
+  /**
+   * Type
+   */
+  type: SCAboutPageContentType.MARKDOWN;
+
+  /**
+   * Value (Markdown)
+   */
+  value: string;
+}
+
+export type SCAboutPageContent =
+  | SCAboutPageMarkdown
+  | SCAboutPageTable
+  | SCAboutPageSection
+  | SCAboutPageRouterLink;
+
+/**
+ * Root of the about page
+ */
+export interface SCAboutPage {
+  /**
+   * Content of the page
+   */
+  content: SCAboutPageContent[];
+
+  /**
+   * Header (title) of the page
+   */
+  title: string;
+
+  /**
+   * Translations
+   */
+  translations: SCTranslations<SCAboutPageTranslationTitle>;
+}

src/config/authorization.ts

@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2021 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 {SCUserConfigurationMap} from './user';
+
+/**
+ * Supported authorization provider types
+ *
+ * @see https://datatracker.ietf.org/doc/html/rfc6749#section-1.3.1
+ * @see https://github.com/gbv/paia
+ */
+export type SCAuthorizationProviderType = 'default' | 'paia' ;
+
+/**
+ * An authorization provider complete configuration
+ */
+export interface SCAuthorizationProvider {
+  /**
+   * An authorization provider client configuration
+   */
+  client: SCAuthorizationProviderClient;
+
+  /**
+   * An authorization provider endpoints configuration
+   */
+  endpoints: SCAuthorizationProviderEndpoints;
+}
+
+/**
+ * An authorization provider client configuration
+ */
+export interface SCAuthorizationProviderClient {
+  /**
+   * Client ID
+   */
+  clientId: string;
+
+  /**
+   * Scopes to request
+   */
+  scopes: string;
+
+  /**
+   * Main url to reach authorization provider
+   */
+  url: string;
+}
+
+/**
+ * An authorization provider endpoints configuration
+ */
+export interface SCAuthorizationProviderEndpoints {
+  /**
+   * URL to start authentication flow
+   */
+  authorization: string;
+
+  /**
+   * URL to end current session
+   */
+  endSession?: string;
+
+  /**
+   * Mapping of how to create SCUser from userinfo endpoint response (using JSONPath syntax)
+   *
+   * @see https://www.npmjs.com/package/jsonpath
+   */
+  mapping: SCUserConfigurationMap;
+
+  /**
+   * URL to revoke a token
+   */
+  revoke?: string;
+
+  /**
+   * URL to get access Token
+   */
+  token: string;
+
+  /**
+   * URL to general user info endpoint
+   */
+  userinfo: string;
+}

src/config/feature.ts

@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2021 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 {SCMap} from '../general/map';
+import {SCAuthorizationProviderType} from './authorization';
+
+export interface SCFeatureConfiguration {
+  /**
+   * Map of extern services mapped by their name (statically)
+   */
+  extern?: SCMap<SCFeatureConfigurationExtern>;
+
+  /**
+   * Map of plugins registered with the backend mapped by their name.
+   */
+  plugins?: SCMap<SCFeatureConfigurationPlugin>;
+}
+
+
+export interface SCFeatureConfigurationPlugin {
+  /**
+   * URL path registered with the backend
+   */
+  urlPath: string;
+}
+
+export interface SCFeatureConfigurationExtern {
+  /**
+   * Key of authorization provider available in SCConfigFile
+   */
+  authProvider?: SCAuthorizationProviderType;
+
+  /**
+   * URL of extern service
+   */
+  url: string;
+}

src/config/file.ts

@@ -14,6 +14,7 @@
  */
 import {SCLicensePlate} from '../general/namespaces';
 import {SCAppConfiguration} from './app';
+import {SCAuthorizationProvider, SCAuthorizationProviderType} from './authorization';
 import {SCBackendConfiguration, SCBackendInternalConfiguration} from './backend';
 
 /**
@@ -27,6 +28,11 @@ export interface SCConfigFile {
    */
   app: SCAppConfiguration;
 
+  /**
+   * Configuration for the supported authorization providers
+   */
+  auth: { [key in SCAuthorizationProviderType]?: SCAuthorizationProvider; };
+
   /**
    * Configuration for the backend that is visible to clients
    */

src/config/user.ts

@@ -0,0 +1,64 @@
+/*
+ * Copyright (C) 2021 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/>.
+ */
+
+/**
+ * User configuration keys mapped to string type while including their requiredness
+ */
+export type SCUserConfigurationMap = { [K in keyof  SCUserConfigurationOptional]?: string } & { [K in keyof SCUserConfigurationRequired]: string };
+
+/**
+ * A user configuration
+ */
+export type SCUserConfiguration = SCUserConfigurationRequired & SCUserConfigurationOptional;
+
+/**
+ * A user configurations required properties
+ */
+interface SCUserConfigurationRequired {
+  /**
+   * ID given to the user
+   */
+  id: string;
+  /**
+   * The complete name of the user combining all the parts of the name into one
+   */
+  name: string;
+}
+
+/**
+ * A user configurations optional properties
+ */
+ interface SCUserConfigurationOptional {
+  /**
+   * User's e-mail
+   */
+  email?: string;
+  /**
+   * User's family name
+   */
+  familyName?: string;
+  /**
+   * User's given name
+   */
+  givenName?: string;
+  /**
+   * Role assigned to the user
+   */
+  role?: string;
+  /**
+   * Student ID given to the user
+   */
+  studentId?: string;
+}

src/general/time.ts

@@ -16,7 +16,7 @@
 /**
  * An ISO8601 date
  *
- * @pattern ^([\+-]?\d{4}(?!\d{2}\b))((-?)((0[1-9]|1[0-2])(\3([12]\d|0[1-9]|3[01]))?|W([0-4]\d|5[0-2])(-?[1-7])?|(00[1-9]|0[1-9]\d|[12]\d{2}|3([0-5]\d|6[1-6])))([T\s]((([01]\d|2[0-3])((:?)[0-5]\d)?|24\:?00)([\.,]\d+(?!:))?)?(\17[0-5]\d([\.,]\d+)?)?([zZ]|([\+-])([01]\d|2[0-3]):?([0-5]\d)?)?)?)?$
+ * @pattern ^(-?(?:[1-9][0-9]*)?[0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])(T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])([\.,][0-9]{0,7})?(Z|[+-](?:2[0-3]|[01][0-9])(:?[0-5][0-9])?)?)?$
  * @see https://gist.github.com/philipashlock/8830168
  *
  * @date
@@ -37,6 +37,6 @@ export type SCISO8601Duration = string;
 /**
  * An ISO8601 time
  *
- * @pattern \d{2}:\d{2}(:\d{2})?
+ * @pattern ^(2[0-3]|[01][0-9]):?([0-5][0-9]):?([0-5][0-9])$
  */
 export type SCISO8601Time = string;

src/meta.ts

@@ -15,11 +15,12 @@
 import {SCThingType} from './things/abstract/thing';
 import {SCAcademicEvent, SCAcademicEventMeta, SCAcademicEventWithoutReferences} from './things/academic-event';
 import {SCArticle, SCArticleMeta, SCArticleWithoutReferences} from './things/article';
+import {SCAssessment, SCAssessmentMeta, SCAssessmentWithoutReferences} from './things/assessment';
 import {SCBook, SCBookMeta, SCBookWithoutReferences} from './things/book';
 import {SCBuilding, SCBuildingMeta, SCBuildingWithoutReferences} from './things/building';
 import {SCCatalog, SCCatalogMeta, SCCatalogWithoutReferences} from './things/catalog';
 import {SCContactPoint, SCContactPointMeta, SCContactPointWithoutReferences} from './things/contact-point';
-import {SCCourseOfStudies, SCCourseOfStudiesMeta, SCCourseOfStudiesWithoutReferences} from './things/course-of-studies';
+import {SCCourseOfStudy, SCCourseOfStudyMeta, SCCourseOfStudyWithoutReferences} from './things/course-of-study';
 import {SCDateSeries, SCDateSeriesMeta, SCDateSeriesWithoutReferences} from './things/date-series';
 import {SCDiff, SCDiffMeta, SCDiffWithoutReferences} from './things/diff';
 import {SCDish, SCDishMeta, SCDishWithoutReferences} from './things/dish';
@@ -51,13 +52,14 @@ import {SCVideo, SCVideoMeta, SCVideoWithoutReferences} from './things/video';
  */
 export const SCClasses: { [K in SCThingType]: object } = {
   /* tslint:enable */
+  'assessment': SCAssessmentMeta,
   'academic event': SCAcademicEventMeta,
   'article': SCArticleMeta,
   'book': SCBookMeta,
   'building': SCBuildingMeta,
   'catalog': SCCatalogMeta,
   'contact point': SCContactPointMeta,
-  'course of studies': SCCourseOfStudiesMeta,
+  'course of study': SCCourseOfStudyMeta,
   'date series': SCDateSeriesMeta,
   'diff': SCDiffMeta,
   'dish': SCDishMeta,
@@ -81,13 +83,14 @@ export const SCClasses: { [K in SCThingType]: object } = {
 };
 
 export type SCIndexableThings =
-  SCAcademicEvent
+  SCAssessment
+  | SCAcademicEvent
   | SCArticle
   | SCBook
   | SCBuilding
   | SCCatalog
   | SCContactPoint
-  | SCCourseOfStudies
+  | SCCourseOfStudy
   | SCDateSeries
   | SCDish
   | SCFloor
@@ -122,64 +125,66 @@ export type SCThingsField = keyof SCThings | string;
  * Thing without references for a thing
  */
 export type SCAssociatedThingWithoutReferences<THING extends SCThings> =
-  THING extends SCAcademicEvent ? SCAcademicEventWithoutReferences :
-    THING extends SCArticle ? SCArticleWithoutReferences :
-      THING extends SCBook ? SCBookWithoutReferences :
-        THING extends SCBuilding ? SCBuildingWithoutReferences :
-          THING extends SCCatalog ? SCCatalogWithoutReferences :
-            THING extends SCContactPoint ? SCContactPointWithoutReferences :
-              THING extends SCCourseOfStudies ? SCCourseOfStudiesWithoutReferences :
-                THING extends SCDateSeries ? SCDateSeriesWithoutReferences :
-                  THING extends SCDiff ? SCDiffWithoutReferences :
-                    THING extends SCDish ? SCDishWithoutReferences :
-                      THING extends SCFavorite ? SCFavoriteWithoutReferences :
-                        THING extends SCFloor ? SCFloorWithoutReferences :
-                          THING extends SCMessage ? SCMessageWithoutReferences :
-                            THING extends SCOrganization ? SCOrganizationWithoutReferences :
-                              THING extends SCPeriodical ? SCPeriodicalWithoutReferences :
-                                THING extends SCPerson ? SCPersonWithoutReferences :
-                                  THING extends SCPointOfInterest ? SCPointOfInterestWithoutReferences :
-                                    THING extends SCPublicationEvent ? SCPublicationEventWithoutReferences :
-                                      THING extends SCRoom ? SCRoomWithoutReferences :
-                                        THING extends SCSemester ? SCSemesterWithoutReferences :
-                                          THING extends SCSetting ? SCSettingWithoutReferences :
-                                            THING extends SCSportCourse ? SCSportCourseWithoutReferences :
-                                              THING extends SCStudyModule ? SCStudyModuleWithoutReferences :
-                                                THING extends SCTicket ? SCTicketWithoutReferences :
-                                                  THING extends SCToDo ? SCToDoWithoutReferences :
-                                                    THING extends SCTour ? SCTourWithoutReferences :
-                                                      THING extends SCVideo ? SCVideoWithoutReferences :
-                                                        never;
+  THING extends SCAssessment ? SCAssessmentWithoutReferences :
+    THING extends SCAcademicEvent ? SCAcademicEventWithoutReferences :
+      THING extends SCArticle ? SCArticleWithoutReferences :
+        THING extends SCBook ? SCBookWithoutReferences :
+          THING extends SCBuilding ? SCBuildingWithoutReferences :
+            THING extends SCCatalog ? SCCatalogWithoutReferences :
+              THING extends SCContactPoint ? SCContactPointWithoutReferences :
+                THING extends SCCourseOfStudy ? SCCourseOfStudyWithoutReferences :
+                  THING extends SCDateSeries ? SCDateSeriesWithoutReferences :
+                    THING extends SCDiff ? SCDiffWithoutReferences :
+                      THING extends SCDish ? SCDishWithoutReferences :
+                        THING extends SCFavorite ? SCFavoriteWithoutReferences :
+                          THING extends SCFloor ? SCFloorWithoutReferences :
+                            THING extends SCMessage ? SCMessageWithoutReferences :
+                              THING extends SCOrganization ? SCOrganizationWithoutReferences :
+                                THING extends SCPeriodical ? SCPeriodicalWithoutReferences :
+                                  THING extends SCPerson ? SCPersonWithoutReferences :
+                                    THING extends SCPointOfInterest ? SCPointOfInterestWithoutReferences :
+                                      THING extends SCPublicationEvent ? SCPublicationEventWithoutReferences :
+                                        THING extends SCRoom ? SCRoomWithoutReferences :
+                                          THING extends SCSemester ? SCSemesterWithoutReferences :
+                                            THING extends SCSetting ? SCSettingWithoutReferences :
+                                              THING extends SCSportCourse ? SCSportCourseWithoutReferences :
+                                                THING extends SCStudyModule ? SCStudyModuleWithoutReferences :
+                                                  THING extends SCTicket ? SCTicketWithoutReferences :
+                                                    THING extends SCToDo ? SCToDoWithoutReferences :
+                                                      THING extends SCTour ? SCTourWithoutReferences :
+                                                        THING extends SCVideo ? SCVideoWithoutReferences :
+                                                          never;
 
 /**
  * Thing for a thing without references
  */
 export type SCAssociatedThing<THING extends SCThings> =
-  THING extends SCAcademicEventWithoutReferences ? SCAcademicEvent :
-    THING extends SCArticleWithoutReferences ? SCArticle :
-      THING extends SCBookWithoutReferences ? SCBook :
-        THING extends SCBuildingWithoutReferences ? SCBuilding :
-          THING extends SCCatalogWithoutReferences ? SCCatalog :
-            THING extends SCContactPointWithoutReferences ? SCContactPoint :
-              THING extends SCCourseOfStudiesWithoutReferences ? SCCourseOfStudies :
-                THING extends SCDateSeriesWithoutReferences ? SCDateSeries :
-                  THING extends SCDiffWithoutReferences ? SCDiff :
-                    THING extends SCDishWithoutReferences ? SCDish :
-                      THING extends SCFavoriteWithoutReferences ? SCFavorite :
-                        THING extends SCFloorWithoutReferences ? SCFloor :
-                          THING extends SCMessageWithoutReferences ? SCMessage :
-                            THING extends SCOrganizationWithoutReferences ? SCOrganization :
-                              THING extends SCPeriodicalWithoutReferences ? SCPeriodical :
-                                THING extends SCPersonWithoutReferences ? SCPerson :
-                                  THING extends SCPointOfInterestWithoutReferences ? SCPointOfInterest :
-                                    THING extends SCPublicationEventWithoutReferences ? SCPublicationEvent :
-                                      THING extends SCRoomWithoutReferences ? SCRoom :
-                                        THING extends SCSemesterWithoutReferences ? SCSemester :
-                                          THING extends SCSettingWithoutReferences ? SCSetting :
-                                            THING extends SCSportCourseWithoutReferences ? SCSportCourse :
-                                              THING extends SCStudyModuleWithoutReferences ? SCStudyModule :
-                                                THING extends SCTicketWithoutReferences ? SCTicket :
-                                                  THING extends SCToDoWithoutReferences ? SCToDo :
-                                                    THING extends SCTourWithoutReferences ? SCTour :
-                                                      THING extends SCVideoWithoutReferences ? SCVideo :
-                                                        never;
+  THING extends SCAssessmentWithoutReferences ? SCAssessment :
+    THING extends SCAcademicEventWithoutReferences ? SCAcademicEvent :
+      THING extends SCArticleWithoutReferences ? SCArticle :
+        THING extends SCBookWithoutReferences ? SCBook :
+          THING extends SCBuildingWithoutReferences ? SCBuilding :
+            THING extends SCCatalogWithoutReferences ? SCCatalog :
+              THING extends SCContactPointWithoutReferences ? SCContactPoint :
+                THING extends SCCourseOfStudyWithoutReferences ? SCCourseOfStudy :
+                  THING extends SCDateSeriesWithoutReferences ? SCDateSeries :
+                    THING extends SCDiffWithoutReferences ? SCDiff :
+                      THING extends SCDishWithoutReferences ? SCDish :
+                        THING extends SCFavoriteWithoutReferences ? SCFavorite :
+                          THING extends SCFloorWithoutReferences ? SCFloor :
+                            THING extends SCMessageWithoutReferences ? SCMessage :
+                              THING extends SCOrganizationWithoutReferences ? SCOrganization :
+                                THING extends SCPeriodicalWithoutReferences ? SCPeriodical :
+                                  THING extends SCPersonWithoutReferences ? SCPerson :
+                                    THING extends SCPointOfInterestWithoutReferences ? SCPointOfInterest :
+                                      THING extends SCPublicationEventWithoutReferences ? SCPublicationEvent :
+                                        THING extends SCRoomWithoutReferences ? SCRoom :
+                                          THING extends SCSemesterWithoutReferences ? SCSemester :
+                                            THING extends SCSettingWithoutReferences ? SCSetting :
+                                              THING extends SCSportCourseWithoutReferences ? SCSportCourse :
+                                                THING extends SCStudyModuleWithoutReferences ? SCStudyModule :
+                                                  THING extends SCTicketWithoutReferences ? SCTicket :
+                                                    THING extends SCToDoWithoutReferences ? SCToDo :
+                                                      THING extends SCTourWithoutReferences ? SCTour :
+                                                        THING extends SCVideoWithoutReferences ? SCVideo :
+                                                          never;

src/protocol/errors/internal-server-error.ts

@@ -12,7 +12,7 @@
  * 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 {BAD_GATEWAY} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -34,7 +34,7 @@ export class SCInternalServerErrorResponse extends SCError {
    * and the internal server error should be displayed to the client
    */
   constructor(err?: Error, stack = false) {
-    super('InternalServerError', 'Internal server error', BAD_GATEWAY, stack);
+    super('InternalServerError', 'Internal server error', StatusCodes.BAD_GATEWAY, stack);
 
     if (stack) {
       this.additionalData = err;

src/protocol/errors/method-not-allowed.ts

@@ -12,7 +12,7 @@
  * 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 {METHOD_NOT_ALLOWED} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -27,6 +27,6 @@ export class SCMethodNotAllowedErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
-    super('MethodNotAllowedError', 'HTTP method is not allowed on this route', METHOD_NOT_ALLOWED, stack);
+    super('MethodNotAllowedError', 'HTTP method is not allowed on this route', StatusCodes.METHOD_NOT_ALLOWED, stack);
   }
 }

src/protocol/errors/not-found.ts

@@ -12,7 +12,7 @@
  * 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 {NOT_FOUND} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -27,6 +27,6 @@ export class SCNotFoundErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
-    super('NotFoundError', 'Resource not found', NOT_FOUND, stack);
+    super('NotFoundError', 'Resource not found', StatusCodes.NOT_FOUND, stack);
   }
 }

src/protocol/errors/parameters-not-acceptable.ts

@@ -12,7 +12,7 @@
  * 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 {NOT_ACCEPTABLE} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -29,6 +29,6 @@ export class SCParametersNotAcceptable extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(message: string, stack?: boolean) {
-    super('ParametersNotAcceptable', message, NOT_ACCEPTABLE, stack);
+    super('ParametersNotAcceptable', message, StatusCodes.NOT_ACCEPTABLE, stack);
   }
 }

src/protocol/errors/plugin-already-registered.ts

@@ -12,7 +12,7 @@
  * 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 {CONFLICT} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 import {SCPluginMetaData} from '../routes/plugin-register';
 
@@ -38,7 +38,7 @@ export class SCPluginAlreadyRegisteredErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(message: string, plugin: SCPluginMetaData, stack = false) {
-    super('SCPluginAlreadyRegisteredError', message, CONFLICT, stack);
+    super('SCPluginAlreadyRegisteredError', message, StatusCodes.CONFLICT, stack);
     if (stack) {
       this.additionalData = plugin;
     }

src/protocol/errors/plugin-registering-failed.ts

@@ -12,7 +12,7 @@
  * 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 {INTERNAL_SERVER_ERROR} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -28,6 +28,6 @@ export class SCPluginRegisteringFailedErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(message: string, stack?: boolean) {
-    super('PluginRegisteringFailedError', message, INTERNAL_SERVER_ERROR, stack);
+    super('PluginRegisteringFailedError', message, StatusCodes.INTERNAL_SERVER_ERROR, stack);
   }
 }

src/protocol/errors/request-body-too-large.ts

@@ -12,7 +12,7 @@
  * 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 {REQUEST_TOO_LONG} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -27,6 +27,6 @@ export class SCRequestBodyTooLargeErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
-    super('RequestBodyTooLargeError', 'The request body is too large.', REQUEST_TOO_LONG, stack);
+    super('RequestBodyTooLargeError', 'The request body is too large.', StatusCodes.REQUEST_TOO_LONG, stack);
   }
 }

src/protocol/errors/syntax-error.ts

@@ -12,12 +12,12 @@
  * 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 {BAD_REQUEST} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
  * An error that is returned whenever there is a syntax error
- * 
+ *
  * @validatable
  */
 export class SCSyntaxErrorResponse extends SCError {
@@ -28,6 +28,6 @@ export class SCSyntaxErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(message: string, stack?: boolean) {
-    super('SyntaxError', message, BAD_REQUEST, stack);
+    super('SyntaxError', message, StatusCodes.BAD_REQUEST, stack);
   }
 }

src/protocol/errors/too-many-requests.ts

@@ -12,12 +12,12 @@
  * 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 {TOO_MANY_REQUESTS} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
  * An error that is returned, when to many request are submitted at once
- * 
+ *
  * @validatable
  */
 export class SCTooManyRequestsErrorResponse extends SCError {
@@ -30,7 +30,7 @@ export class SCTooManyRequestsErrorResponse extends SCError {
     super(
       'TooManyRequestsError',
       'Too many requests. You can not submit more than 5 queries an once',
-      TOO_MANY_REQUESTS,
+      StatusCodes.TOO_MANY_REQUESTS,
       stack,
     );
   }

src/protocol/errors/unsupported-media-type.ts

@@ -12,7 +12,7 @@
  * 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 {UNSUPPORTED_MEDIA_TYPE} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -27,6 +27,6 @@ export class SCUnsupportedMediaTypeErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(stack?: boolean) {
-    super('UnsupportedMediaTypeError', 'Unsupported media type', UNSUPPORTED_MEDIA_TYPE, stack);
+    super('UnsupportedMediaTypeError', 'Unsupported media type', StatusCodes.UNSUPPORTED_MEDIA_TYPE, stack);
   }
 }

src/protocol/errors/validation.ts

@@ -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 {ValidationError} from '@openstapps/core-tools/lib/common';
-import {BAD_REQUEST} from 'http-status-codes';
+import {ValidationError} from '@openstapps/core-tools/lib/types/validator';
+import {StatusCodes} from 'http-status-codes';
 import {SCError} from '../error';
 
 /**
@@ -34,7 +34,7 @@ export class SCValidationErrorResponse extends SCError {
    * @param stack Set to true if a stack trace should be created
    */
   constructor(errors: ValidationError[], stack?: boolean) {
-    super('ValidationError', 'Validation of request failed', BAD_REQUEST, stack);
+    super('ValidationError', 'Validation of request failed', StatusCodes.BAD_REQUEST, stack);
     this.additionalData = errors;
   }
 }

src/protocol/route.ts

@@ -78,9 +78,9 @@ export interface SCRoute {
   statusCodeSuccess: number;
 
   /**
-   * URL fragment of the route
+   * URL path of the route
    */
-  urlFragment: string;
+  urlPath: string;
 }
 
 /**
@@ -112,16 +112,16 @@ export abstract class SCAbstractRoute implements SCRoute {
    */
   statusCodeSuccess = 200;
   /**
-   * @see SCRoute.urlFragment
+   * @see SCRoute.urlPath
    */
-  urlFragment = '/';
+  urlPath = '/';
 
   /**
-   * Get "compiled" URL fragment
+   * Get "compiled" URL path
    *
-   * @param parameters Parameters to compile URL fragment with
+   * @param parameters Parameters to compile URL path with
    */
-  public getUrlFragment(parameters: SCMap<string> = {}): string {
+  public getUrlPath(parameters: SCMap<string> = {}): string {
     let obligatoryParameters: string[] = [];
 
     if (typeof this.obligatoryParameters === 'object') {
@@ -132,7 +132,7 @@ export abstract class SCAbstractRoute implements SCRoute {
       throw new Error('Extraneous parameters provided.');
     }
 
-    return this.urlFragment
+    return this.urlPath
       .split('/')
       .map((part) => {
         if (part.indexOf(':') !== 0) {

src/protocol/routes/book-availability.ts

@@ -12,7 +12,7 @@
  * 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 {OK} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCUuid} from '../../general/uuid';
 import {SCAcademicPriceGroup, SCThingThatCanBeOfferedOffer} from '../../things/abstract/thing-that-can-be-offered';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
@@ -88,7 +88,7 @@ export class SCBookAvailabilityRoute extends SCAbstractRoute {
     this.method = SCRouteHttpVerbs.POST;
     this.requestBodyName = 'SCBookAvailabilityRequest';
     this.responseBodyName = 'SCBookAvailabilityResponse';
-    this.statusCodeSuccess = OK;
-    this.urlFragment = '/bookAvailability';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/bookAvailability';
   }
 }

src/protocol/routes/bulk-add.ts

@@ -12,7 +12,7 @@
  * 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 {CREATED} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCThings} from '../../meta';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
@@ -59,7 +59,7 @@ export class SCBulkAddRoute extends SCAbstractRoute {
     };
     this.requestBodyName = 'SCBulkAddRequest';
     this.responseBodyName = 'SCBulkAddResponse';
-    this.statusCodeSuccess = CREATED;
-    this.urlFragment = '/bulk/:UID';
+    this.statusCodeSuccess = StatusCodes.CREATED;
+    this.urlPath = '/bulk/:UID';
   }
 }

src/protocol/routes/bulk-done.ts

@@ -12,7 +12,7 @@
  * 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 {NO_CONTENT} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
 import {SCNotFoundErrorResponse} from '../errors/not-found';
@@ -59,7 +59,7 @@ export class SCBulkDoneRoute extends SCAbstractRoute {
     };
     this.requestBodyName = 'SCBulkDoneRequest';
     this.responseBodyName = 'SCBulkDoneResponse';
-    this.statusCodeSuccess = NO_CONTENT;
-    this.urlFragment = '/bulk/:UID/done';
+    this.statusCodeSuccess = StatusCodes.NO_CONTENT;
+    this.urlPath = '/bulk/:UID/done';
   }
 }

src/protocol/routes/bulk-request.ts

@@ -12,7 +12,7 @@
  * 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 {OK} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCISO8601Date} from '../../general/time';
 import {SCUuid} from '../../general/uuid';
 import {SCThingType} from '../../things/abstract/thing';
@@ -98,7 +98,7 @@ export class SCBulkRoute extends SCAbstractRoute {
     this.method = SCRouteHttpVerbs.POST;
     this.requestBodyName = 'SCBulkRequest';
     this.responseBodyName = 'SCBulkResponse';
-    this.statusCodeSuccess = OK;
-    this.urlFragment = '/bulk';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/bulk';
   }
 }

src/protocol/routes/feedback.ts

@@ -12,7 +12,7 @@
  * 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 {NO_CONTENT} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCMessage} from '../../things/message';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
@@ -59,8 +59,8 @@ export class SCFeedbackRoute extends SCAbstractRoute {
     this.method = SCRouteHttpVerbs.POST;
     this.requestBodyName = 'SCFeedbackRequest';
     this.responseBodyName = 'SCFeedbackResponse';
-    this.statusCodeSuccess = NO_CONTENT;
-    this.urlFragment = '/feedback';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/feedback';
   }
 }
 

src/protocol/routes/index.ts

@@ -12,8 +12,9 @@
  * 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 {OK} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCAppConfiguration} from '../../config/app';
+import {SCAuthorizationProvider, SCAuthorizationProviderType} from '../../config/authorization';
 import {SCBackendConfiguration} from '../../config/backend';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
@@ -42,6 +43,11 @@ export interface SCIndexResponse {
    */
   app: SCAppConfiguration;
 
+  /**
+   * @see SCAuthorizationProvider
+   */
+  auth: { [key in SCAuthorizationProviderType]?: SCAuthorizationProvider; };
+
   /**
    * @see SCBackendConfiguration
    */
@@ -65,7 +71,7 @@ export class SCIndexRoute extends SCAbstractRoute {
     this.method = SCRouteHttpVerbs.POST;
     this.requestBodyName = 'SCIndexRequest';
     this.responseBodyName = 'SCIndexResponse';
-    this.statusCodeSuccess = OK;
-    this.urlFragment = '/';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/';
   }
 }

src/protocol/routes/plugin-register.ts

@@ -12,7 +12,7 @@
  * 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 {OK} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {JSONSchema7} from 'json-schema';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
@@ -122,7 +122,7 @@ export class SCPluginRegisterRoute extends SCAbstractRoute {
     this.method = SCRouteHttpVerbs.POST;
     this.requestBodyName = 'SCPluginRegisterRequest';
     this.responseBodyName = 'SCPluginRegisterResponse';
-    this.statusCodeSuccess = OK;
-    this.urlFragment = '/plugin/register';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/plugin/register';
   }
 }

src/protocol/routes/search-multi.ts

@@ -12,7 +12,7 @@
  * 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 {OK} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCMap} from '../../general/map';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
@@ -63,7 +63,7 @@ export class SCMultiSearchRoute extends SCAbstractRoute {
     this.method = SCRouteHttpVerbs.POST;
     this.requestBodyName = 'SCMultiSearchRequest';
     this.responseBodyName = 'SCMultiSearchResponse';
-    this.statusCodeSuccess = OK;
-    this.urlFragment = '/search/multi';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/search/multi';
   }
 }

src/protocol/routes/search.ts

@@ -12,7 +12,7 @@
  * 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 {OK} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
 import {SCRequestBodyTooLargeErrorResponse} from '../errors/request-body-too-large';
@@ -56,7 +56,7 @@ export class SCSearchRoute extends SCAbstractRoute {
     this.method = SCRouteHttpVerbs.POST;
     this.requestBodyName = 'SCSearchRequest';
     this.responseBodyName = 'SCSearchResponse';
-    this.statusCodeSuccess = OK;
-    this.urlFragment = '/search';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/search';
   }
 }

src/protocol/routes/thing-update.ts

@@ -12,7 +12,7 @@
  * 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 {OK} from 'http-status-codes';
+import {StatusCodes} from 'http-status-codes';
 import {SCThings} from '../../meta';
 import {SCInternalServerErrorResponse} from '../errors/internal-server-error';
 import {SCMethodNotAllowedErrorResponse} from '../errors/method-not-allowed';
@@ -60,7 +60,7 @@ export class SCThingUpdateRoute extends SCAbstractRoute {
     };
     this.requestBodyName = 'SCThingUpdateRequest';
     this.responseBodyName = 'SCThingUpdateResponse';
-    this.statusCodeSuccess = OK;
-    this.urlFragment = '/:TYPE/:UID';
+    this.statusCodeSuccess = StatusCodes.OK;
+    this.urlPath = '/:TYPE/:UID';
   }
 }

src/protocol/search/filters/geo.ts

@@ -13,7 +13,7 @@
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
 // tslint:disable-next-line:no-implicit-dependencies
-import {Polygon} from 'geojson';
+import {Polygon, Position} from 'geojson';
 import {SCThingsField} from '../../../meta';
 import {SCSearchAbstractFilter, SCSearchAbstractFilterArguments} from '../filter';
 
@@ -29,6 +29,24 @@ export interface SCGeoFilter extends SCSearchAbstractFilter<SCGeoFilterArguments
   type: 'geo';
 }
 
+/**
+ * A rectangular geo shape, representing the top-left and bottom-right corners
+ *
+ * This is an extension of the Geojson type
+ * http://geojson.org/geojson-spec.html
+ */
+export interface Envelope {
+  /**
+   * The top-left and bottom-right corners of the bounding box
+   */
+  coordinates: [Position, Position];
+
+  /**
+   * The type of the geometry
+   */
+  type: 'envelope';
+}
+
 /**
  * Arguments for filter instruction by geo data
  */
@@ -41,7 +59,7 @@ export interface SCGeoFilterArguments extends SCSearchAbstractFilterArguments {
   /**
    * Geo data to check up on
    */
-  shape: Polygon;
+  shape: Polygon | Envelope;
 
   /**
    * Spatial relation between the provided shape and the shape of the field.

src/things/abstract/academic-degree.ts

@@ -22,26 +22,25 @@ export interface SCAcademicDegreeWithoutReferences
   extends SCThingWithoutReferences {
   /**
    * The achievable academic degree
+   *
+   * @filterable
+   * @sortable ducet
    */
-  academicDegree: SCGermanAcademicDegree;
+  academicDegree: string;
 
   /**
    * The achievable academic degree with academic field specification
    * (eg. Master of Science)
    *
-   * @filterable
-   * @keyword
    */
-  academicDegreewithField: string;
+  academicDegreewithField?: string;
 
   /**
    * The achievable academic degree with academic field specification
    * shorted (eg. M.Sc.).
    *
-   * @filterable
-   * @keyword
    */
-  academicDegreewithFieldShort: string;
+  academicDegreewithFieldShort?: string;
 }
 
 /**
@@ -62,13 +61,13 @@ export class SCAcademicDegreeMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
-      academicDegree: 'Hochschulgrad',
-      academicDegreewithField: 'Abschlussbezeichnungen',
-      academicDegreewithFieldShort: 'Abschlussbezeichnungen (kurz)',
+      ...new SCThingMeta().fieldTranslations.de,
+      academicDegree: 'Abschlussgrad',
+      academicDegreewithField: 'Abschlussbezeichnung',
+      academicDegreewithFieldShort: 'Abschlussbezeichnung (kurz)',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       academicDegree: 'academic degree',
       academicDegreewithField: 'acedemic degree and discipline',
       academicDegreewithFieldShort: 'acedemic degree and discipline (short)',
@@ -80,33 +79,10 @@ export class SCAcademicDegreeMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
-      academicDegree: {
-        'bachelor': 'Bachelor',
-        'diploma': 'Diplom',
-        'doctor': 'Doktor',
-        'licentiate': 'Lizenziat',
-        'magister': 'Magister',
-        'master': 'Master',
-        'masterstudent': 'Meisterschüler',
-        'state examination': 'Staatsexamen',
-      },
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
 }
-
-/**
- * Types of (german) academic degrees
- */
-export type SCGermanAcademicDegree =
-  'bachelor'
-  | 'diploma'
-  | 'doctor'
-  | 'licentiate'
-  | 'magister'
-  | 'master'
-  | 'master pupil'
-  | 'state examination' ;

src/things/abstract/academic-term.ts

@@ -77,7 +77,7 @@ export class SCAcademicTermWithoutReferencesMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       acronym: 'Akronym',
       endDate: 'Enddatum',
       eventsEndDate: 'Enddatum der Veranstaltungen',
@@ -85,7 +85,7 @@ export class SCAcademicTermWithoutReferencesMeta
       startDate: 'Startdatum',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       acronym: 'acronym',
       endDate: 'end date',
       eventsEndDate: 'end date of events',
@@ -99,10 +99,10 @@ export class SCAcademicTermWithoutReferencesMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
 }

src/things/abstract/creative-work.ts

@@ -17,19 +17,13 @@ import {SCISO8601Date} from '../../general/time';
 import {SCOrganizationWithoutReferences} from '../organization';
 import {SCPersonWithoutReferences} from '../person';
 import {SCPublicationEventWithoutReferences} from '../publication-event';
-import {SCThingMeta, SCThingTranslatableProperties, SCThingWithoutReferences} from './thing';
-import {
-  SCAcademicPriceGroup,
-  SCThingThatCanBeOffered, SCThingThatCanBeOfferedMeta,
-  SCThingThatCanBeOfferedTranslatableProperties,
-  SCThingThatCanBeOfferedWithoutReferences,
-} from './thing-that-can-be-offered';
+import {SCThing, SCThingMeta, SCThingTranslatableProperties, SCThingWithoutReferences} from './thing';
 
 /**
  * A creative work without references
  */
 export interface SCCreativeWorkWithoutReferences
-  extends SCThingWithoutReferences, SCThingThatCanBeOfferedWithoutReferences {
+  extends SCThingWithoutReferences {
 
   /**
    * Languages this creative work is available in
@@ -71,6 +65,13 @@ export interface SCCreativeWorkWithoutReferences
    */
   keywords?: string[];
 
+  /**
+   * Date (in text form) the creative work was most recently
+   *
+   * @keyword
+   */
+  lastPublished?: string;
+
   /**
    * Translated fields of the creative work
    */
@@ -81,7 +82,7 @@ export interface SCCreativeWorkWithoutReferences
  * A creative work
  */
 export interface SCCreativeWork
-  extends SCCreativeWorkWithoutReferences, SCThingThatCanBeOffered<SCAcademicPriceGroup> {
+  extends SCCreativeWorkWithoutReferences, SCThing {
   /**
    * Authors of the creative work
    */
@@ -117,7 +118,7 @@ export interface SCCreativeWork
  * Translatable properties of creative works
  */
 export interface SCCreativeWorkTranslatableProperties
-  extends SCThingTranslatableProperties, SCThingThatCanBeOfferedTranslatableProperties {
+  extends SCThingTranslatableProperties {
   /**
    * Translation of the keywords of the creative work
    *
@@ -136,8 +137,7 @@ export class SCCreativeWorkMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       name: 'Titel',
       authors: 'beteiligte Personen',
       availableLanguages: 'verfügbare Übersetzungen',
@@ -153,8 +153,7 @@ export class SCCreativeWorkMeta
       sourceOrganization: 'Körperschaft',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       name: 'title',
       authors: 'involved persons',
       availableLanguages: 'available languages',
@@ -176,12 +175,10 @@ export class SCCreativeWorkMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
 }

src/things/abstract/event.ts

@@ -86,7 +86,7 @@ export class SCEventMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       academicTerms: 'Semester',
       catalogs: 'Verzeichnis',
       creativeWorks: 'begleitende Werke',
@@ -96,7 +96,7 @@ export class SCEventMeta
       remainingAttendeeCapacity: 'verfügbare Anzahl an Teilnehmern',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       academicTerms: 'academic terms',
       catalogs: 'catalogs',
       creativeWorks: 'related material',
@@ -112,10 +112,10 @@ export class SCEventMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
 }

src/things/abstract/place.ts

@@ -145,13 +145,13 @@ export class SCPlaceWithoutReferencesMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       address: 'Adresse',
       geo: 'Geoinformation',
       openingHours: 'Öffnungszeiten',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       address: 'address',
       geo: 'geographic information',
       openingHours: 'opening hours',
@@ -163,10 +163,10 @@ export class SCPlaceWithoutReferencesMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
 }

src/things/abstract/thing-in-place.ts

@@ -34,11 +34,11 @@ export class SCThingInPlaceMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       inPlace: 'Ort',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       inPlace: 'location',
     },
   };
@@ -48,10 +48,10 @@ export class SCThingInPlaceMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
 }

src/things/abstract/thing-that-accepts-payments.ts

@@ -54,11 +54,11 @@ export class SCThingThatAcceptsPaymentsWithoutReferencesMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       paymentsAccepted: 'Bezahlmethoden',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       paymentsAccepted: 'accepted payment methods',
     },
   };
@@ -68,7 +68,7 @@ export class SCThingThatAcceptsPaymentsWithoutReferencesMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
       paymentsAccepted: {
         'cafeteria card': 'Mensakarte',
         'cash': 'Bar',
@@ -76,7 +76,7 @@ export class SCThingThatAcceptsPaymentsWithoutReferencesMeta
       },
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
 }

src/things/abstract/thing-that-can-be-offered.ts

@@ -107,7 +107,7 @@ export interface SCThingThatCanBeOfferedOffer<T extends SCPriceGroup>
   /**
    * List of prices that are distinct for specific groups
    */
-  prices: T;
+  prices?: T;
 
   /**
    * Provider of an offer
@@ -150,21 +150,16 @@ export type SCThingThatCanBeOfferedAvailability =
 export class SCThingThatCanBeOfferedMeta<T extends SCPriceGroup>
   implements SCMetaTranslations<SCThingThatCanBeOffered<T>> {
 
-  /**
-   * Instance
-   */
-  protected static _instance = new Map<string, unknown>();
-
   /**
    * Translations of fields
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       offers: 'Angebote',
     },
     en: {
-      ...SCThingMeta.getInstance().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       offers: 'offers',
     },
   };
@@ -174,26 +169,10 @@ export class SCThingThatCanBeOfferedMeta<T extends SCPriceGroup>
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
-
-  // tslint:disable:static-this
-  /**
-   * Function to retrieve typed singleton instance (including generics)
-   */
-  public static getInstance<T extends SCPriceGroup>(): SCThingThatCanBeOfferedMeta<T> {
-    if (!SCThingThatCanBeOfferedMeta._instance.has(this.name)) {
-      SCThingThatCanBeOfferedMeta._instance.set(this.name, new SCThingThatCanBeOfferedMeta<T>());
-    }
-
-    return SCThingThatCanBeOfferedMeta._instance
-      .get(this.name) as SCThingThatCanBeOfferedMeta<T>;
-  }
-
-  protected constructor() {
-  }
 }

src/things/abstract/thing-with-categories.ts

@@ -120,22 +120,17 @@ export interface SCThingWithCategoriesSpecificValues {
 export class SCThingWithCategoriesWithoutReferencesMeta<T, U>
   implements SCMetaTranslations<SCThingWithCategoriesWithoutReferences<T, U>> {
 
-  /**
-   * Instance
-   */
-  protected static _instance = new Map<string, unknown>();
-
   /**
    * Translations of fields
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       categories: 'Kategorien',
       categorySpecificValues: 'besondere Kategorien',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       categories: 'categories',
       categorySpecificValues: 'category with specific values',
     },
@@ -146,27 +141,10 @@ export class SCThingWithCategoriesWithoutReferencesMeta<T, U>
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
     },
   };
-
-  // tslint:disable:static-this
-  /**
-   * Function to retrieve typed singleton instance (including generics)
-   */
-  public static getInstance<T, U>(): SCThingWithCategoriesWithoutReferencesMeta<T, U> {
-    if (!SCThingWithCategoriesWithoutReferencesMeta._instance.has(this.name)) {
-      SCThingWithCategoriesWithoutReferencesMeta._instance
-        .set(this.name, new SCThingWithCategoriesWithoutReferencesMeta<T, U>());
-    }
-
-    return SCThingWithCategoriesWithoutReferencesMeta._instance
-      .get(this.name) as SCThingWithCategoriesWithoutReferencesMeta<T, U>;
-  }
-
-  protected constructor() {
-  }
 }

src/things/abstract/thing.ts

@@ -23,6 +23,7 @@ import {SCPersonWithoutReferences} from '../person';
  * Types a thing can be
  */
 export enum SCThingType {
+  Assessment = 'assessment',
   AcademicEvent = 'academic event',
   Article = 'article',
   Book = 'book',
@@ -30,7 +31,7 @@ export enum SCThingType {
   Building = 'building',
   Catalog = 'catalog',
   ContactPoint = 'contact point',
-  CourseOfStudies = 'course of studies',
+  CourseOfStudy = 'course of study',
   DateSeries = 'date series',
   Diff = 'diff',
   Dish = 'dish',
@@ -268,11 +269,6 @@ export interface SCThingTranslatablePropertyOrigin {
  * Meta information about things
  */
 export class SCThingMeta implements SCMetaTranslations<SCThing> {
-  /**
-   * Set type definition for singleton instance
-   */
-  protected static _instance = new Map<string, unknown>();
-
   /**
    * Translations of fields
    */
@@ -314,19 +310,4 @@ export class SCThingMeta implements SCMetaTranslations<SCThing> {
       type: 'Thing',
     },
   };
-
-  // tslint:disable:static-this
-  /**
-   * Function to retrieve typed singleton instance
-   */
-  public static getInstance<T extends SCThingMeta>(): T {
-    if (!SCThingMeta._instance.has(this.name)) {
-      SCThingMeta._instance.set(this.name, new this());
-    }
-
-    return SCThingMeta._instance.get(this.name) as T;
-  }
-
-  protected constructor() {
-  }
 }

src/things/academic-event.ts

@@ -128,15 +128,15 @@ export class SCAcademicEventMeta
    */
   fieldTranslations = {
     de: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldTranslations.de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCAcademicEventCategories,
+      ...new SCEventMeta().fieldTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCAcademicEventCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
       majors: 'Hauptfächer',
       originalCategory: 'ursprüngliche Kategorie',
     },
     en: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldTranslations.en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCAcademicEventCategories,
+      ...new SCEventMeta().fieldTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCAcademicEventCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
       majors: 'majors',
       originalCategory: 'original category',
@@ -148,8 +148,8 @@ export class SCAcademicEventMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldValueTranslations.de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCAcademicEventCategories,
+      ...new SCEventMeta().fieldValueTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCAcademicEventCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
       categories: {
         'colloquium': 'Kolloquium',
@@ -171,8 +171,8 @@ export class SCAcademicEventMeta
       type: 'akademische Veranstaltung',
     },
     en: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldValueTranslations.en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCAcademicEventCategories,
+      ...new SCEventMeta().fieldValueTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCAcademicEventCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
       type: SCThingType.AcademicEvent,
     },

src/things/article.ts

@@ -20,6 +20,7 @@ import {
   SCCreativeWorkWithoutReferences,
 } from './abstract/creative-work';
 import {SCThingMeta, SCThingType} from './abstract/thing';
+import {SCAcademicPriceGroup, SCThingThatCanBeOffered, SCThingThatCanBeOfferedMeta, SCThingThatCanBeOfferedTranslatableProperties, SCThingThatCanBeOfferedWithoutReferences} from './abstract/thing-that-can-be-offered';
 import {
   SCThingWithCategoriesSpecificValues,
   SCThingWithCategoriesTranslatableProperties,
@@ -40,6 +41,7 @@ export type SCArticleCategories = 'unipedia'
  */
 export interface SCArticleWithoutReferences
   extends SCCreativeWorkWithoutReferences,
+  SCThingThatCanBeOfferedWithoutReferences,
   SCThingWithCategoriesWithoutReferences<SCArticleCategories, SCThingWithCategoriesSpecificValues> {
   /**
    * Article itself as markdown
@@ -71,7 +73,9 @@ export interface SCArticleWithoutReferences
  * @indexable
  */
 export interface SCArticle
-  extends SCCreativeWork, SCArticleWithoutReferences {
+  extends SCCreativeWork,
+  SCThingThatCanBeOffered<SCAcademicPriceGroup>,
+  SCArticleWithoutReferences {
   /**
    * A periodical to which this article belongs
    */
@@ -96,7 +100,9 @@ export interface SCArticle
  * Translatable properties of an article
  */
 export interface SCArticleTranslatableProperties
-  extends SCThingWithCategoriesTranslatableProperties, SCCreativeWorkTranslatableProperties {
+  extends SCThingWithCategoriesTranslatableProperties,
+  SCThingThatCanBeOfferedTranslatableProperties,
+  SCCreativeWorkTranslatableProperties {
   /**
    * Translation of the article itself as markdown
    *
@@ -115,19 +121,21 @@ export class SCArticleMeta
    */
   fieldTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations
+      ...new SCCreativeWorkMeta().fieldTranslations
         .de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCArticleCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCArticleCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.de,
       categories: 'Format',
       reference: 'Referenz',
       articleBody: 'Artikelinhalt',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations
+      ...new SCCreativeWorkMeta().fieldTranslations
         .en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCArticleCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCArticleCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.en,
       categories: 'format',
       reference: 'reference',
       articleBody: 'article body',
@@ -139,8 +147,11 @@ export class SCArticleMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
+      ...new SCCreativeWorkMeta().fieldValueTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCArticleCategories,
+        SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
       categories: {
         article: 'Artikel',
         eArticle: 'E-Aufsatz',
@@ -149,8 +160,11 @@ export class SCArticleMeta
       type: 'Artikel',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
+      ...new SCCreativeWorkMeta().fieldValueTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCArticleCategories,
+        SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
       type: SCThingType.Article,
       categories: {
         article: 'article',

src/things/assessment.ts

@@ -0,0 +1,162 @@
+/*
+ * Copyright (C) 2019-2021 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 {SCMetaTranslations, SCTranslations} from '../general/i18n';
+import {SCISO8601Date} from '../general/time';
+import {SCThing, SCThingMeta, SCThingType} from './abstract/thing';
+import {SCThingWithCategories, SCThingWithCategoriesSpecificValues, SCThingWithCategoriesTranslatableProperties, SCThingWithCategoriesWithoutReferences, SCThingWithCategoriesWithoutReferencesMeta} from './abstract/thing-with-categories';
+import {SCCourseOfStudyWithoutReferences} from './course-of-study';
+
+
+/**
+ * Categories of assessments
+ */
+ export type SCAssessmentCategories = 'university assessment';
+
+/**
+ * An assessment without references
+ *
+ */
+export interface SCAssessmentWithoutReferences
+  extends SCThingWithCategoriesWithoutReferences<SCAssessmentCategories, SCThingWithCategoriesSpecificValues> {
+    /**
+     * Number of attempts
+     *
+     * @integer
+     */
+    attempt?: number;
+
+    /**
+     * Date assessment was taken or graded
+     */
+    date?: SCISO8601Date;
+
+    /**
+     * ECTS (credit-points)
+     *
+     * @float
+     */
+    ects?: number;
+
+    /**
+     * Grade
+     */
+    grade: string;
+
+    /**
+     * Current status
+     */
+    status?: string;
+
+    /**
+     * Translated fields of an assessment
+     */
+    translations?: SCTranslations<SCAssessmentTranslatableProperties>;
+
+    /**
+     * Type of an assessment
+     */
+    type: SCThingType.Assessment;
+}
+
+/**
+ * An assessment
+ *
+ * @validatable
+ */
+export interface SCAssessment
+  extends SCAssessmentWithoutReferences, SCThing,
+    SCThingWithCategories<SCAssessmentCategories, SCThingWithCategoriesSpecificValues> {
+
+  /**
+   * Course of study the assessment was taken for
+   */
+  courseOfStudy?: SCCourseOfStudyWithoutReferences;
+
+  /**
+   * An array of assessments from the 'level 0' (root) assessment to the direct parent
+   */
+  superAssessments?: SCAssessmentWithoutReferences[];
+
+  /**
+   * Translated fields of an assessment
+   */
+  translations?: SCTranslations<SCAssessmentTranslatableProperties>;
+
+  /**
+   * Type of an assessment
+   */
+  type: SCThingType.Assessment;
+
+}
+
+export interface SCAssessmentTranslatableProperties
+  extends SCThingWithCategoriesTranslatableProperties {
+  /**
+   * @see SCAssessmentWithoutReferences.status
+   */
+   status?: string;
+}
+
+/**
+ * Study module meta data
+ */
+ export class SCAssessmentMeta
+ extends SCThingMeta
+ implements SCMetaTranslations<SCAssessment> {
+  /**
+   * Translations of fields
+   */
+  fieldTranslations = {
+    de: {
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCAssessmentCategories,
+         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
+      attempt: 'Versuch',
+      courseOfStudy: 'Studiengang',
+      date: 'Datum',
+      ects: 'ECTS-Punkte',
+      grade: 'Note',
+      status: 'Status',
+      superAssessments: 'übergeordnete Prüfungen',
+    },
+    en: {
+     ...new SCThingWithCategoriesWithoutReferencesMeta<SCAssessmentCategories,
+        SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
+      attempt: 'attempt',
+      courseOfStudy: 'course of study',
+      date: 'date',
+      ects: 'ECTS points',
+      grade: 'grade',
+      status: 'status',
+      superAssessments: 'parent assessments',
+    },
+  };
+
+  /**
+   * Translations of values of fields
+   */
+  fieldValueTranslations = {
+    de: {
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCAssessmentCategories,
+      SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
+      type: 'Prüfung',
+    },
+    en: {
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCAssessmentCategories,
+      SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
+      type: SCThingType.Assessment,
+    },
+  };
+}

src/things/book.ts

@@ -20,6 +20,7 @@ import {
   SCCreativeWorkWithoutReferences,
 } from './abstract/creative-work';
 import {SCThingMeta, SCThingType} from './abstract/thing';
+import {SCAcademicPriceGroup, SCThingThatCanBeOffered, SCThingThatCanBeOfferedMeta, SCThingThatCanBeOfferedTranslatableProperties, SCThingThatCanBeOfferedWithoutReferences} from './abstract/thing-that-can-be-offered';
 import {
   SCThingWithCategoriesSpecificValues,
   SCThingWithCategoriesTranslatableProperties,
@@ -43,6 +44,7 @@ export type SCBookCategories = 'audio'
   | 'microfilm'
   | 'musicalscore'
   | 'photo'
+  | 'physicalobject'
   | 'retro'
   | 'sensorimage'
   | 'unknown'
@@ -53,6 +55,7 @@ export type SCBookCategories = 'audio'
  */
 export interface SCBookWithoutReferences
   extends SCCreativeWorkWithoutReferences,
+  SCThingThatCanBeOfferedWithoutReferences,
   SCThingWithCategoriesWithoutReferences<SCBookCategories, SCThingWithCategoriesSpecificValues> {
   /**
    * Categories of a book
@@ -92,7 +95,9 @@ export interface SCBookWithoutReferences
  * @indexable
  */
 export interface SCBook
-  extends SCCreativeWork, SCBookWithoutReferences {
+  extends SCCreativeWork,
+  SCThingThatCanBeOffered<SCAcademicPriceGroup>,
+  SCBookWithoutReferences {
   /**
    * Translated properties of a book
    */
@@ -108,7 +113,9 @@ export interface SCBook
  * Translatable properties of a book
  */
 export interface SCBookTranslatableFields
-  extends SCThingWithCategoriesTranslatableProperties, SCCreativeWorkTranslatableProperties {
+  extends SCThingWithCategoriesTranslatableProperties,
+  SCThingThatCanBeOfferedTranslatableProperties,
+  SCCreativeWorkTranslatableProperties {
 }
 
 /**
@@ -120,17 +127,19 @@ export class SCBookMeta extends SCThingMeta implements SCMetaTranslations<SCBook
    */
   fieldTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations.de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBookCategories,
+      ...new SCCreativeWorkMeta().fieldTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBookCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.de,
       categories: 'Format',
       ISBNs: 'ISBN',
       numberOfPages: 'Seitenanzahl',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations.en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBookCategories,
+      ...new SCCreativeWorkMeta().fieldTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBookCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.en,
       categories: 'format',
       ISBNs: 'ISBN',
       numberOfPages: 'number of pages',
@@ -142,10 +151,12 @@ export class SCBookMeta extends SCThingMeta implements SCMetaTranslations<SCBook
    */
   fieldValueTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
+      ...new SCCreativeWorkMeta()
         .fieldValueTranslations.de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBookCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBookCategories,
       SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
+        .fieldValueTranslations.de,
       categories: {
         audio: 'Tonträger',
         book: 'Buch',
@@ -169,10 +180,12 @@ export class SCBookMeta extends SCThingMeta implements SCMetaTranslations<SCBook
       type: 'Buch',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
+      ...new SCCreativeWorkMeta()
         .fieldValueTranslations.en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBookCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBookCategories,
       SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
+        .fieldValueTranslations.en,
       type: SCThingType.Book,
       categories: {
         audio: 'audio material',

src/things/building.ts

@@ -99,15 +99,15 @@ export class SCBuildingMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBuildingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBuildingCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldTranslations.de,
+      ...new SCPlaceWithoutReferencesMeta().fieldTranslations.de,
       floors: 'Etagen',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBuildingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBuildingCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldTranslations.en,
+      ...new SCPlaceWithoutReferencesMeta().fieldTranslations.en,
       floors: 'floors',
     },
   };
@@ -117,9 +117,9 @@ export class SCBuildingMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBuildingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBuildingCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldValueTranslations.de,
+      ...new SCPlaceWithoutReferencesMeta().fieldValueTranslations.de,
       categories: {
         'cafe': 'Café',
         'canteen': 'Kantine',
@@ -133,9 +133,9 @@ export class SCBuildingMeta
       type: 'Gebäude',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCBuildingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCBuildingCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldValueTranslations.en,
+      ...new SCPlaceWithoutReferencesMeta().fieldValueTranslations.en,
       type: SCThingType.Building,
     },
   };

src/things/catalog.ts

@@ -89,7 +89,7 @@ export class SCCatalogMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCCatalogCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCCatalogCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
       academicTerm: 'Semester',
       level: 'Ebene',
@@ -97,7 +97,7 @@ export class SCCatalogMeta
       superCatalogs: 'übergeordnete Verzeichnisse',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCCatalogCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCCatalogCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
       academicTerm: 'academic term',
       level: 'level',
@@ -111,7 +111,7 @@ export class SCCatalogMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCCatalogCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCCatalogCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
       categories: {
         'university events': 'Universitätsveranstaltung',
@@ -119,7 +119,7 @@ export class SCCatalogMeta
       type: 'Verzeichnis',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCCatalogCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCCatalogCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
       type: SCThingType.Catalog,
     },

src/things/contact-point.ts

@@ -73,7 +73,7 @@ export interface SCContactPointWithoutReferences
  * A contact point
  *
  * @see http://schema.org/ContactPoint
- * 
+ *
  * @validatable
  * @indexable
  */
@@ -101,7 +101,7 @@ export class SCContactPointMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       areaServed: 'Arbeitsraum',
       email: 'E-Mail-Addresse',
       faxNumber: 'Faxnummer',
@@ -110,7 +110,7 @@ export class SCContactPointMeta
       url: 'Link',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       areaServed: 'location',
       email: 'email address',
       faxNumber: 'fax number',
@@ -125,11 +125,11 @@ export class SCContactPointMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
       type: 'Kontaktinformation',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
       type: SCThingType.ContactPoint,
     },
   };

src/things/course-of-study.ts

@@ -26,119 +26,113 @@ import {SCDateSeriesWithoutReferences} from './date-series';
 import {SCOrganizationWithoutReferences} from './organization';
 
 /**
- * A course of studies without references
+ * A course of study without references
  */
-export interface SCCourseOfStudiesWithoutReferences
+export interface SCCourseOfStudyWithoutReferences
   extends SCAcademicDegreeWithoutReferences, SCThingThatCanBeOfferedWithoutReferences {
   /**
-   * The main language in which the course of studies
+   * The main language in which the course of study
    * is beeing offered
    */
-  mainLanguage: SCLanguage;
+  mainLanguage?: SCLanguage;
 
   /**
-   * Actual major of the course of studies (eg. physics)
+   * The modes the course of study is offered in
    *
    * @filterable
-   * @keyword
    */
-  major: string;
+  mode?: SCCourseOfStudyMode;
 
   /**
-   * The modes the course of studies is offered in
+   * The time modes the course of study is offered in
+   *
+   * @filterable
    */
-  mode: SCCourseOfStudiesMode;
-
-  /**
-   * The time modes the course of studies is offered in
-   */
-  timeMode: SCCourseOfStudiesTimeMode;
+  timeMode?: SCCourseOfStudyTimeMode;
 
   /**
    * Translated fields of a dish
    */
-  translations?: SCTranslations<SCCourseOfStudiesTranslatableProperties>;
+  translations?: SCTranslations<SCCourseOfStudyTranslatableProperties>;
 
   /**
-   * Type of the course of studies
+   * Type of the course of study
    */
-  type: SCThingType.CourseOfStudies;
+  type: SCThingType.CourseOfStudy;
 }
 
 /**
- * A course of studies
+ * A course of study
  *
  * @validatable
  * @indexable
  */
-export interface SCCourseOfStudies
-  extends SCCourseOfStudiesWithoutReferences, SCThingThatCanBeOffered<SCAcademicPriceGroup>, SCAcademicDegree {
+export interface SCCourseOfStudy
+  extends SCCourseOfStudyWithoutReferences, SCThingThatCanBeOffered<SCAcademicPriceGroup>, SCAcademicDegree {
   /**
-   * The department that manages the course of studies
+   * The department that manages the course of study
    */
-  department: SCOrganizationWithoutReferences;
+  department?: SCOrganizationWithoutReferences;
 
   /**
    * The secretary that administers requests and
-   * questions concerning the course of studies
+   * questions concerning the course of study
    */
-  secretary: SCOrganizationWithoutReferences;
+  secretary?: SCOrganizationWithoutReferences;
 
   /**
-   * Dates at which the course of studies is planned to start
+   * Dates at which the course of study is planned to start
    */
   startDates?: SCDateSeriesWithoutReferences[];
 
   /**
-   * Translated fields of a course of studies
+   * Translated fields of a course of study
    */
-  translations?: SCTranslations<SCCourseOfStudiesTranslatableProperties>;
+  translations?: SCTranslations<SCCourseOfStudyTranslatableProperties>;
 
   /**
-   * Type of the course of studies
+   * Type of the course of study
    */
-  type: SCThingType.CourseOfStudies;
+  type: SCThingType.CourseOfStudy;
 }
 
 /**
- * Translatable properties of a course of studies
+ * Translatable properties of a course of study
  */
-export interface SCCourseOfStudiesTranslatableProperties
+export interface SCCourseOfStudyTranslatableProperties
   extends SCThingThatCanBeOfferedTranslatableProperties {
-  // noop
+    // noop
 }
 
 /**
- * Meta information about a course of studies
+ * Meta information about a course of study
  */
-export class SCCourseOfStudiesMeta
+export class SCCourseOfStudyMeta
   extends SCThingMeta
-  implements SCMetaTranslations<SCCourseOfStudies> {
+  implements SCMetaTranslations<SCCourseOfStudy> {
   /**
    * Translations of fields
    */
   fieldTranslations = {
     de: {
-      ...SCAcademicDegreeMeta.getInstance<SCAcademicDegreeMeta>()
+      ...new SCAcademicDegreeMeta()
         .fieldTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldTranslations.de,
       department: 'Fachbereich',
       mainLanguage: 'Unterrichtssprache',
-      major: 'Studienfach',
       mode: 'Studiengangsart',
       secretary: 'Sekretariat',
       startDates: 'Startdatum',
       timeMode: 'Zeitmodell',
     },
     en: {
-      ...SCAcademicDegreeMeta.getInstance<SCAcademicDegreeMeta>()
+      ...new SCAcademicDegreeMeta()
         .fieldTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldTranslations.de,
       department: 'department',
       mainLanguage: 'main language',
-      major: 'major',
       mode: 'mode',
       secretary: 'secretary',
       startDates: 'start dates',
@@ -151,7 +145,7 @@ export class SCCourseOfStudiesMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCAcademicDegreeMeta.getInstance().fieldValueTranslations.de,
+      ...new SCAcademicDegreeMeta().fieldValueTranslations.de,
       modes: {
         combination: 'Kombinationsstudiengang',
         'double-degree': 'Doppelstudium',
@@ -165,32 +159,32 @@ export class SCCourseOfStudiesMeta
       type: 'Studiengang',
     },
     en: {
-      ...SCAcademicDegreeMeta.getInstance().fieldValueTranslations.en,
+      ...new SCAcademicDegreeMeta().fieldValueTranslations.en,
       modes: {
-        combination: 'combination course of studies',
-        'double-degree': 'double degree course of studies',
-        dual: 'dual course of studies',
-        standard: 'course of studies',
+        combination: 'combination course of study',
+        'double-degree': 'double degree course of study',
+        dual: 'dual course of study',
+        standard: 'course of study',
       },
       timeMode: {
         fulltime: 'full-time',
         parttime: 'part-time',
       },
-      type: SCThingType.CourseOfStudies,
+      type: SCThingType.CourseOfStudy,
     },
   };
 }
 
 /**
- * Types of (german) course of studies modes
+ * Types of (german) course of study modes
  */
-export type SCCourseOfStudiesMode = 'combination'
+export type SCCourseOfStudyMode = 'combination'
   | 'dual'
   | 'double-degree'
   | 'standard' ;
 
 /**
- * Types of (german) course of studies time modes
+ * Types of (german) course of study time modes
  */
-export type SCCourseOfStudiesTimeMode = 'fulltime'
+export type SCCourseOfStudyTimeMode = 'fulltime'
   | 'parttime' ;

src/things/date-series.ts

@@ -123,9 +123,9 @@ export class SCDateSeriesMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .de,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCSportCoursePriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCSportCoursePriceGroup>()
         .fieldTranslations.de,
       dates: 'Einzeltermine',
       duration: 'Dauer',
@@ -135,9 +135,9 @@ export class SCDateSeriesMeta
       performers: 'Vortragende',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .en,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCSportCoursePriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCSportCoursePriceGroup>()
         .fieldTranslations.en,
       dates: 'dates',
       duration: 'duration',
@@ -153,16 +153,16 @@ export class SCDateSeriesMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCSportCoursePriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCSportCoursePriceGroup>()
         .fieldValueTranslations.de,
       type: 'Terminserie',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCSportCoursePriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCSportCoursePriceGroup>()
         .fieldValueTranslations.en,
       type: SCThingType.DateSeries,
     },

src/things/diff.ts

@@ -73,14 +73,14 @@ export class SCDiffMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       action: 'Aktion',
       changes: 'Änderungen',
       dateCreated: 'Erstellungsdatum',
       object: 'Objekt',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       action: 'action',
       changes: 'changes',
       dateCreated: 'date created',
@@ -93,7 +93,7 @@ export class SCDiffMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
       action: {
         'changed': 'geändert',
         'removed': 'gelöscht',
@@ -101,7 +101,7 @@ export class SCDiffMeta
       type: 'Unterschied',
     },
     en: {
-      ...SCThingMeta.getInstance().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
       type: SCThingType.Diff,
     },
   };

src/things/dish.ts

@@ -202,9 +202,9 @@ export class SCDishMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCDishCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldTranslations.de,
       additives: 'Zusatzstoffe',
       characteristics: 'Merkmale',
@@ -212,9 +212,9 @@ export class SCDishMeta
       nutrition: 'Nährwertangaben',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCDishCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldTranslations.en,
       additives: 'additives',
       characteristics: 'characteristics',
@@ -228,9 +228,9 @@ export class SCDishMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCDishCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.de,
       categories: {
         appetizer: 'Vorspeise',
@@ -243,9 +243,9 @@ export class SCDishMeta
       type: 'Essen',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCDishCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCDishCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.en,
       type: SCThingType.Dish,
     },

src/things/floor.ts

@@ -114,13 +114,13 @@ export class SCFloorMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .de,
       floorName: 'Etagenbezeichnung',
       plan: 'Grundriss',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .en,
       floorName: 'floor name',
       plan: 'plan',
@@ -132,12 +132,12 @@ export class SCFloorMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.de,
       type: 'Etage',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.en,
       type: SCThingType.Floor,
     },

src/things/message.ts

@@ -130,9 +130,8 @@ export class SCMessageMeta
    */
   fieldTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations
-        .de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCMessageCategories,
+      ...new SCCreativeWorkMeta().fieldTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCMessageCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
       audienceOrganizations: 'Zielgruppenorganisationen',
       audiences: 'Zielgruppen',
@@ -141,9 +140,8 @@ export class SCMessageMeta
       sequenceIndex: 'Sequenzindex',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations
-        .en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCMessageCategories,
+      ...new SCCreativeWorkMeta().fieldTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCMessageCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
       audienceOrganizations: 'audience organizations',
       audiences: 'audiences',
@@ -158,8 +156,9 @@ export class SCMessageMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
-        .fieldValueTranslations.de,
+      ...new SCCreativeWorkMeta().fieldValueTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCMessageCategories,
+      SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
       audiences: {
         employees: 'Angestellte',
         guests: 'Gäste',
@@ -171,8 +170,9 @@ export class SCMessageMeta
       type: 'Nachricht',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
-        .fieldValueTranslations.en,
+      ...new SCCreativeWorkMeta().fieldValueTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCMessageCategories,
+      SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
       type: SCThingType.Message,
     },
   };

src/things/organization.ts

@@ -57,11 +57,11 @@ export class SCOrganizationMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations.de,
+      ...new SCThingInPlaceMeta().fieldTranslations.de,
       contactPoints: 'Kontaktinformationen',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations.en,
+      ...new SCThingInPlaceMeta().fieldTranslations.en,
       contactPoints: 'contact details',
     },
   };
@@ -71,11 +71,11 @@ export class SCOrganizationMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldValueTranslations.de,
+      ...new SCThingInPlaceMeta().fieldValueTranslations.de,
       type: 'Einrichtung',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldValueTranslations.en,
+      ...new SCThingInPlaceMeta().fieldValueTranslations.en,
       type: SCThingType.Organization,
     },
   };

src/things/periodical.ts

@@ -20,6 +20,7 @@ import {
   SCCreativeWorkWithoutReferences,
 } from './abstract/creative-work';
 import {SCThingMeta, SCThingType} from './abstract/thing';
+import {SCAcademicPriceGroup, SCThingThatCanBeOffered, SCThingThatCanBeOfferedMeta, SCThingThatCanBeOfferedTranslatableProperties, SCThingThatCanBeOfferedWithoutReferences} from './abstract/thing-that-can-be-offered';
 import {
   SCThingWithCategoriesSpecificValues,
   SCThingWithCategoriesTranslatableProperties,
@@ -37,6 +38,7 @@ export type SCPeriodicalCategories = 'journal' | 'electronic';
  */
 export interface SCPeriodicalWithoutReferences
   extends SCCreativeWorkWithoutReferences,
+  SCThingThatCanBeOfferedWithoutReferences,
   SCThingWithCategoriesWithoutReferences<SCPeriodicalCategories, SCThingWithCategoriesSpecificValues> {
   /**
    * Categories of a periodical
@@ -68,7 +70,9 @@ export interface SCPeriodicalWithoutReferences
  * @indexable
  */
 export interface SCPeriodical
-  extends SCCreativeWork, SCPeriodicalWithoutReferences {
+  extends SCCreativeWork,
+  SCThingThatCanBeOffered<SCAcademicPriceGroup>,
+  SCPeriodicalWithoutReferences {
   /**
    * Translated properties of a periodical
    */
@@ -84,7 +88,9 @@ export interface SCPeriodical
  * Translatable properties of a periodical
  */
 export interface SCPeriodicalTranslatableFields
-  extends SCThingWithCategoriesTranslatableProperties, SCCreativeWorkTranslatableProperties {
+  extends SCThingWithCategoriesTranslatableProperties,
+  SCThingThatCanBeOfferedTranslatableProperties,
+  SCCreativeWorkTranslatableProperties {
 }
 
 /**
@@ -96,16 +102,18 @@ export class SCPeriodicalMeta extends SCThingMeta implements SCMetaTranslations<
    */
   fieldTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations.de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCPeriodicalCategories,
+      ...new SCCreativeWorkMeta().fieldTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPeriodicalCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.de,
       categories: 'Format',
       ISSNs: 'ISSN',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations.en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCPeriodicalCategories,
+      ...new SCCreativeWorkMeta().fieldTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPeriodicalCategories,
       SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.en,
       categories: 'format',
       ISSNs: 'ISSN',
     },
@@ -116,8 +124,10 @@ export class SCPeriodicalMeta extends SCThingMeta implements SCMetaTranslations<
    */
   fieldValueTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
-        .fieldValueTranslations.de,
+      ...new SCCreativeWorkMeta().fieldValueTranslations.de,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPeriodicalCategories,
+      SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldValueTranslations.de,
       type: 'Periodikum',
       categories: {
         electronic: 'E-Journal',
@@ -125,8 +135,10 @@ export class SCPeriodicalMeta extends SCThingMeta implements SCMetaTranslations<
       },
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
-        .fieldValueTranslations.en,
+      ...new SCCreativeWorkMeta().fieldValueTranslations.en,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPeriodicalCategories,
+      SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldValueTranslations.en,
       type: 'periodical',
       categories: {
         electronic: 'E-Journal',

src/things/person.ts

@@ -174,7 +174,7 @@ export class SCPersonMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       additionalName: 'Zusatzname',
       affiliations: 'Zugehörigkeiten',
       birthDate: 'Geburtsdatum',
@@ -192,7 +192,7 @@ export class SCPersonMeta
       workLocations: 'Arbeitsstandorte',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       additionalName: 'additional name',
       affiliations: 'affiliations',
       birthDate: 'birth date',
@@ -217,7 +217,7 @@ export class SCPersonMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
       gender: {
         'female': 'weiblich',
         'inter': 'divers',
@@ -227,7 +227,7 @@ export class SCPersonMeta
       type: 'Person',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
       type: SCThingType.Person,
     },
   };

src/things/point-of-interest.ts

@@ -82,17 +82,17 @@ export class SCPointOfInterestMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCPointOfInterestCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPointOfInterestCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldTranslations.de,
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCPlaceWithoutReferencesMeta().fieldTranslations.de,
+      ...new SCThingInPlaceMeta().fieldTranslations
         .de,
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCPointOfInterestCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPointOfInterestCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldTranslations.en,
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCPlaceWithoutReferencesMeta().fieldTranslations.en,
+      ...new SCThingInPlaceMeta().fieldTranslations
         .en,
     },
   };
@@ -102,9 +102,9 @@ export class SCPointOfInterestMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCPointOfInterestCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPointOfInterestCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldValueTranslations.de,
+      ...new SCPlaceWithoutReferencesMeta().fieldValueTranslations.de,
       categories: {
         'card charger': 'Kartenaufwerter',
         'computer': 'Computer',
@@ -115,9 +115,9 @@ export class SCPointOfInterestMeta
       type: 'Sonderziel',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCPointOfInterestCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCPointOfInterestCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldValueTranslations.en,
+      ...new SCPlaceWithoutReferencesMeta().fieldValueTranslations.en,
       type: SCThingType.PointOfInterest,
     },
   };

src/things/publication-event.ts

@@ -78,12 +78,12 @@ export class SCPublicationEventMeta
    */
   fieldTranslations = {
     de: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldTranslations.de,
+      ...new SCEventMeta().fieldTranslations.de,
       locations: 'Erscheinungsorte',
       publisher: 'Verlag',
     },
     en: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldTranslations.en,
+      ...new SCEventMeta().fieldTranslations.en,
       locations: 'places of publication',
       publisher: 'publisher',
     },
@@ -94,11 +94,11 @@ export class SCPublicationEventMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldValueTranslations.de,
+      ...new SCEventMeta().fieldValueTranslations.de,
       type: 'Veröffentlichung',
     },
     en: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldValueTranslations.en,
+      ...new SCEventMeta().fieldValueTranslations.en,
       type: 'publication event',
     },
   };

src/things/room.ts

@@ -127,23 +127,23 @@ export class SCRoomMeta
    */
   fieldTranslations = {
     de: {
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldTranslations.de,
-      ...SCThingThatAcceptsPaymentsWithoutReferencesMeta.getInstance<SCThingThatAcceptsPaymentsWithoutReferencesMeta>()
+      ...new SCPlaceWithoutReferencesMeta().fieldTranslations.de,
+      ...new SCThingThatAcceptsPaymentsWithoutReferencesMeta()
         .fieldTranslations.de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCRoomCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCRoomCategories,
         SCRoomSpecificValues>().fieldTranslations.de,
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .de,
       floorName: 'Etagenbezeichnung',
       inventory: 'Bestand',
     },
     en: {
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldTranslations.en,
-      ...SCThingThatAcceptsPaymentsWithoutReferencesMeta.getInstance<SCThingThatAcceptsPaymentsWithoutReferencesMeta>()
+      ...new SCPlaceWithoutReferencesMeta().fieldTranslations.en,
+      ...new SCThingThatAcceptsPaymentsWithoutReferencesMeta()
         .fieldTranslations.en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCRoomCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCRoomCategories,
         SCRoomSpecificValues>().fieldTranslations.en,
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .en,
       floorName: 'floor name',
       inventory: 'inventory',
@@ -155,12 +155,12 @@ export class SCRoomMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldValueTranslations.de,
-      ...SCThingThatAcceptsPaymentsWithoutReferencesMeta.getInstance<SCThingThatAcceptsPaymentsWithoutReferencesMeta>()
+      ...new SCPlaceWithoutReferencesMeta().fieldValueTranslations.de,
+      ...new SCThingThatAcceptsPaymentsWithoutReferencesMeta()
         .fieldValueTranslations.de,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCRoomCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCRoomCategories,
         SCRoomSpecificValues>().fieldValueTranslations.de,
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.de,
       categories: {
         'cafe': 'Café',
@@ -180,12 +180,12 @@ export class SCRoomMeta
       type: 'Raum',
     },
     en: {
-      ...SCPlaceWithoutReferencesMeta.getInstance<SCPlaceWithoutReferencesMeta>().fieldValueTranslations.en,
-      ...SCThingThatAcceptsPaymentsWithoutReferencesMeta.getInstance<SCThingThatAcceptsPaymentsWithoutReferencesMeta>()
+      ...new SCPlaceWithoutReferencesMeta().fieldValueTranslations.en,
+      ...new SCThingThatAcceptsPaymentsWithoutReferencesMeta()
         .fieldValueTranslations.en,
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCRoomCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCRoomCategories,
         SCRoomSpecificValues>().fieldValueTranslations.en,
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.en,
       type: SCThingType.Room,
     },

src/things/semester.ts

@@ -65,7 +65,7 @@ export class SCSemesterMeta
    */
   fieldTranslations = {
     de: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance<SCAcademicTermWithoutReferencesMeta>().fieldTranslations.de,
+      ...new SCAcademicTermWithoutReferencesMeta().fieldTranslations.de,
       acronym: 'Abkürzung',
       endDate: 'Ende',
       eventsEndDate: 'Vorlesungsschluss',
@@ -73,7 +73,7 @@ export class SCSemesterMeta
       startDate: 'Beginn',
     },
     en: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance<SCAcademicTermWithoutReferencesMeta>().fieldTranslations.en,
+      ...new SCAcademicTermWithoutReferencesMeta().fieldTranslations.en,
       acronym: 'acronym',
       endDate: 'end date',
       eventsEndDate: 'semester ending',
@@ -87,12 +87,12 @@ export class SCSemesterMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance<SCAcademicTermWithoutReferencesMeta>()
+      ...new SCAcademicTermWithoutReferencesMeta()
         .fieldValueTranslations.de,
       type: 'Semester',
     },
     en: {
-      ...SCAcademicTermWithoutReferencesMeta.getInstance<SCAcademicTermWithoutReferencesMeta>()
+      ...new SCAcademicTermWithoutReferencesMeta()
         .fieldValueTranslations.en,
       type: SCThingType.Semester,
     },

src/things/setting.ts

@@ -129,7 +129,7 @@ export class SCSettingMeta extends SCThingMeta implements SCMetaTranslations<SCS
    */
   fieldTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCSettingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCSettingCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
       defaultValue: 'Standard Wert',
       inputType: 'Eingabetyp',
@@ -138,7 +138,7 @@ export class SCSettingMeta extends SCThingMeta implements SCMetaTranslations<SCS
       values: 'Werte',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCSettingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCSettingCategories,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
       defaultValue: 'default value',
       inputType: 'input type',
@@ -153,7 +153,7 @@ export class SCSettingMeta extends SCThingMeta implements SCMetaTranslations<SCS
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCSettingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCSettingCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
       categories: {
         credentials: 'Anmeldedaten',
@@ -171,7 +171,7 @@ export class SCSettingMeta extends SCThingMeta implements SCMetaTranslations<SCS
       type: 'Einstellung',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<SCSettingCategories,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<SCSettingCategories,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
       type: SCThingType.Setting,
     },

src/things/sport-course.ts

@@ -52,10 +52,10 @@ export class SCSportCourseMeta
    */
   fieldTranslations = {
     de: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldTranslations.de,
+      ...new SCEventMeta().fieldTranslations.de,
     },
     en: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldTranslations.en,
+      ...new SCEventMeta().fieldTranslations.en,
     },
   };
 
@@ -64,11 +64,11 @@ export class SCSportCourseMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldValueTranslations.de,
+      ...new SCEventMeta().fieldValueTranslations.de,
       type: 'Sportkurs',
     },
     en: {
-      ...SCEventMeta.getInstance<SCEventMeta>().fieldValueTranslations.en,
+      ...new SCEventMeta().fieldValueTranslations.en,
       type: SCThingType.SportCourse,
     },
   };

src/things/study-module.ts

@@ -150,8 +150,8 @@ export class SCStudyModuleMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance().fieldTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingMeta().fieldTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldTranslations.de,
       academicEvents: 'Veranstaltungen',
       ects: 'ECTS-Punkte',
@@ -164,8 +164,8 @@ export class SCStudyModuleMeta
       secretary: 'Sekretariat',
     },
     en: {
-      ...SCThingMeta.getInstance().fieldTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingMeta().fieldTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldTranslations.en,
       academicEvents: 'academic events',
       ects: 'ECTS points',
@@ -184,8 +184,8 @@ export class SCStudyModuleMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingMeta().fieldValueTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.de,
       necessity: {
         'elective': 'Wahlfach',
@@ -195,8 +195,8 @@ export class SCStudyModuleMeta
       type: 'Studiengangmodul',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
-      ...SCThingThatCanBeOfferedMeta.getInstance<SCAcademicPriceGroup>()
+      ...new SCThingMeta().fieldValueTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.en,
       type: SCThingType.StudyModule,
     },

src/things/ticket.ts

@@ -70,14 +70,14 @@ export class SCTicketMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .de,
       approxWaitingTime: 'ungefähre Wartezeit',
       currentTicketNumber: 'aktuelle Ticketnummer',
       serviceType: 'Service Kategorie',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>().fieldTranslations
+      ...new SCThingInPlaceMeta().fieldTranslations
         .en,
       approxWaitingTime: 'approximate waiting time',
       currentTicketNumber: 'current ticket number',
@@ -90,12 +90,12 @@ export class SCTicketMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.de,
       type: 'Ticket',
     },
     en: {
-      ...SCThingInPlaceMeta.getInstance<SCThingInPlaceMeta>()
+      ...new SCThingInPlaceMeta()
         .fieldValueTranslations.en,
       type: SCThingType.Ticket,
     },

src/things/todo.ts

@@ -88,14 +88,14 @@ export class SCToDoMeta extends SCThingMeta implements SCMetaTranslations<SCToDo
    */
   fieldTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<string,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<string,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.de,
       done: 'Erledigt',
       dueDate: 'Fälligkeitsdatum',
       priority: 'Priorität',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<string,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<string,
         SCThingWithCategoriesSpecificValues>().fieldTranslations.en,
       done: 'done',
       dueDate: 'due date',
@@ -108,12 +108,12 @@ export class SCToDoMeta extends SCThingMeta implements SCMetaTranslations<SCToDo
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<string,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<string,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.de,
       type: 'ToDo',
     },
     en: {
-      ...SCThingWithCategoriesWithoutReferencesMeta.getInstance<string,
+      ...new SCThingWithCategoriesWithoutReferencesMeta<string,
         SCThingWithCategoriesSpecificValues>().fieldValueTranslations.en,
       type: SCThingType.ToDo,
     },

src/things/tour.ts

@@ -65,12 +65,12 @@ export class SCTourMeta
    */
   fieldTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.de,
+      ...new SCThingMeta().fieldTranslations.de,
       init: 'Initiales Skript',
       steps: 'Schritte',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldTranslations.en,
+      ...new SCThingMeta().fieldTranslations.en,
       init: 'initial script',
       steps: 'steps',
     },
@@ -81,11 +81,11 @@ export class SCTourMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.de,
+      ...new SCThingMeta().fieldValueTranslations.de,
       type: 'Tour',
     },
     en: {
-      ...SCThingMeta.getInstance<SCThingMeta>().fieldValueTranslations.en,
+      ...new SCThingMeta().fieldValueTranslations.en,
       type: SCThingType.Tour,
     },
   };

src/things/video.ts

@@ -12,17 +12,19 @@
  * 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 {SCLanguage, SCMetaTranslations} from '../general/i18n';
+import {SCLanguage, SCMetaTranslations, SCTranslations} from '../general/i18n';
 import {SCISO8601Duration} from '../general/time';
-import {SCCreativeWork, SCCreativeWorkMeta, SCCreativeWorkWithoutReferences} from './abstract/creative-work';
+import {SCCreativeWork, SCCreativeWorkMeta, SCCreativeWorkTranslatableProperties, SCCreativeWorkWithoutReferences} from './abstract/creative-work';
 import {SCThingMeta, SCThingType} from './abstract/thing';
+import {SCAcademicPriceGroup, SCThingThatCanBeOffered, SCThingThatCanBeOfferedMeta, SCThingThatCanBeOfferedTranslatableProperties, SCThingThatCanBeOfferedWithoutReferences} from './abstract/thing-that-can-be-offered';
 import {SCPersonWithoutReferences} from './person';
 
 /**
  * A video without references
  */
 export interface SCVideoWithoutReferences
-  extends SCCreativeWorkWithoutReferences {
+  extends SCCreativeWorkWithoutReferences,
+  SCThingThatCanBeOfferedWithoutReferences {
   /**
    * The Duration of the Video
    */
@@ -52,6 +54,11 @@ export interface SCVideoWithoutReferences
    */
   transcript?: string;
 
+  /**
+   * Translated fields of a video
+   */
+  translations?: SCTranslations<SCVideoTranslatableFields>;
+
   /**
    * Type of an Video
    */
@@ -123,18 +130,34 @@ export interface SCVideoTrack {
  * @indexable
  */
 export interface SCVideo
-  extends SCCreativeWork, SCVideoWithoutReferences {
+  extends SCCreativeWork,
+  SCThingThatCanBeOffered<SCAcademicPriceGroup>,
+  SCVideoWithoutReferences {
   /**
    * Persons acting in the Video
    */
   actors?: SCPersonWithoutReferences[];
 
+  /**
+   * Translated fields of a video
+   */
+  translations?: SCTranslations<SCVideoTranslatableFields>;
+
   /**
    * Type of a video
    */
   type: SCThingType.Video;
 }
 
+/**
+ * Translatable properties of a video
+ */
+export interface SCVideoTranslatableFields
+extends SCCreativeWorkTranslatableProperties,
+  SCThingThatCanBeOfferedTranslatableProperties {
+}
+
+
 /**
  * Meta information about a video
  */
@@ -146,8 +169,9 @@ export class SCVideoMeta
    */
   fieldTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations
+      ...new SCCreativeWorkMeta().fieldTranslations
         .de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.de,
       actors: 'Darsteller',
       duration: 'Dauer',
       sources: 'Quellen',
@@ -156,8 +180,9 @@ export class SCVideoMeta
       transcript: 'Transkript',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>().fieldTranslations
+      ...new SCCreativeWorkMeta().fieldTranslations
         .en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>().fieldTranslations.en,
       actors: 'actors',
       duration: 'duration',
       sources: 'sources',
@@ -172,12 +197,16 @@ export class SCVideoMeta
    */
   fieldValueTranslations = {
     de: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
+      ...new SCCreativeWorkMeta()
+        .fieldValueTranslations.de,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.de,
       type: 'Video',
     },
     en: {
-      ...SCCreativeWorkMeta.getInstance<SCCreativeWorkMeta>()
+      ...new SCCreativeWorkMeta()
+        .fieldValueTranslations.en,
+      ...new SCThingThatCanBeOfferedMeta<SCAcademicPriceGroup>()
         .fieldValueTranslations.en,
       type: SCThingType.Video,
     },

src/translator.ts

@@ -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 clone = require('fast-clone');
 import equal = require('fast-deep-equal/es6');
+import clone = require('rfdc');
 import {Defined, TSOCType} from 'ts-optchain';
 import {SCLanguageCode} from './general/i18n';
 import {isThing} from './guards';
@@ -77,6 +77,13 @@ export class SCThingTranslator {
     this.sourceCache = new LRUCache(cacheCapacity);
     this._language = language;
     this.metaClasses = SCClasses;
+
+    // Initalize all meta classes once
+    if (typeof (this.metaClasses as any)[Object.keys(this.metaClasses)[0]] === 'function') {
+      for (const metaClass of Object.keys(this.metaClasses)) {
+        (this.metaClasses as any)[metaClass] = new (SCClasses as any)[metaClass]();
+      }
+    }
   }
 
   /**
@@ -143,7 +150,7 @@ export class SCThingTranslator {
    */
   private getMetaClassInstance(thingType: SCThingType): any {
     if (thingType in this.metaClasses) {
-      return new (this.metaClasses as any)[thingType]();
+      return this.metaClasses[thingType];
     }
 
     return undefined;
@@ -234,7 +241,7 @@ export class SCThingTranslator {
         return cachedInstance as T;
       }
     }
-    const translatedInstance = this.translateThingInPlaceDestructively(clone(thing));
+    const translatedInstance = this.translateThingInPlaceDestructively(clone()(thing));
     delete translatedInstance.translations;
     this.cache.putObject(translatedInstance);
     this.sourceCache.putObject(thing);
@@ -267,7 +274,7 @@ export class SCThingTranslator {
               return this.deeptranslate((objTranslatedFromCache as any)[key]);
             }
           }
-          const objTranslated = this.translateThingInPlaceDestructively(clone(obj));
+          const objTranslated = this.translateThingInPlaceDestructively(clone()(obj));
           this.cache.putObject(objTranslated);
           this.sourceCache.putObject(thing);
 
@@ -281,7 +288,7 @@ export class SCThingTranslator {
    * Given a SCThingType this function returns an object with the same basic structure as the corresponding SCThing
    * All the values will be set to the known translations of the property/key name
    * @example
-   * const translatedMetaDish = translator.translatedPropertyNames<SCCourseOfStudies>(SCThingType.CourseOfStudies);
+   * const translatedMetaDish = translator.translatedPropertyNames<SCCourseOfStudy>(SCThingType.CourseOfStudy);
    * @param type The type whose property names will be translated
    * @returns An object with the properties of the SCThingType where the values are the known property tranlations
    */

test/compat.spec.ts

@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2021 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 {lightweightProjectFromPath} from '@openstapps/core-tools/lib/easy-ast/easy-ast';
+import {LightweightProject} from '@openstapps/core-tools/lib/easy-ast/types/lightweight-project';
+import {expect} from 'chai';
+import {reduce} from 'lodash';
+
+process.on('unhandledRejection', (err) => {
+  throw err;
+});
+
+describe('Mapping Compatibility', () => {
+  let project: LightweightProject;
+
+  before(function () {
+    this.timeout(15000);
+    this.slow(10000);
+
+    project = lightweightProjectFromPath('src');
+  });
+
+  it('non-exported definitions should not have duplicate names across files', () => {
+    reduce(project, (result, file) => reduce(file, (result2, _, key) => {
+      expect(result2[key]).to.be.undefined;
+      return {
+        [key]: true,
+        ...result2,
+      };
+    }, result), {} as Record<string, boolean>);
+  });
+});

test/features.spec.ts

@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2018 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 {isLightweightClass, isLightweightEnum, isUnionType} from '@openstapps/core-tools/lib/easy-ast/ast-util';
+import {LightweightAliasDefinition} from '@openstapps/core-tools/lib/easy-ast/types/lightweight-alias-definition';
+import {LightweightProjectWithIndex} from '@openstapps/core-tools/lib/easy-ast/types/lightweight-project';
+import {LightweightType} from '@openstapps/core-tools/lib/easy-ast/types/lightweight-type';
+import {LightweightClassDefinition} from '@openstapps/core-tools/src/easy-ast/types/lightweight-class-definition';
+import {LightweightDefinition} from '@openstapps/core-tools/src/easy-ast/types/lightweight-definition';
+import {LightweightProperty} from '@openstapps/core-tools/src/easy-ast/types/lightweight-property';
+import {expect} from 'chai';
+import {assign, chain, clone, flatMap, isNil, reduce, reject, some} from 'lodash';
+
+process.on('unhandledRejection', (err) => {
+  throw err;
+});
+
+describe('Features', () => {
+  let project: LightweightProjectWithIndex;
+  let thingNames: string[];
+  let things: LightweightClassDefinition[];
+  let thingsWithoutReferences: LightweightClassDefinition[];
+
+  before(function () {
+    this.timeout(15000);
+    this.slow(10000);
+
+    project = new LightweightProjectWithIndex('src');
+
+    const thingsReflection = project.definitions['SCIndexableThings'] as LightweightAliasDefinition;
+    expect(isLightweightEnum(thingsReflection)).to.be.true;
+    expect(isUnionType(thingsReflection.type!)).to.be.true;
+
+    thingsReflection.type!.specificationTypes!.push({
+      flags: 524_288,
+      referenceName: 'SCDiff',
+    });
+
+    // tslint:disable-next-line:no-unused-expression
+    expect(thingsReflection.type?.specificationTypes?.every(it => typeof it.referenceName !== 'undefined')).to.be.true;
+    thingNames = thingsReflection.type?.specificationTypes?.map(type => type.referenceName!) ?? [];
+    things = thingNames
+      .map(it => project.definitions[it])
+      .filter(isLightweightClass);
+    thingsWithoutReferences = thingNames
+      .map(it => project.definitions[`${it}WithoutReferences`])
+      .filter(isLightweightClass);
+  });
+
+  const inheritedProperties = function (classLike: LightweightClassDefinition):
+    Record<string, LightweightProperty> | undefined {
+    return reduce(
+      [...(classLike.implementedDefinitions ?? []), ...(classLike.extendedDefinitions ?? [])],
+      (obj, extension) => {
+        const object = project.definitions[extension.referenceName ?? ''];
+
+        return assign(obj, isLightweightClass(object)
+          ? inheritedProperties(object)
+          : obj);
+      },
+      clone(classLike.properties)
+    );
+  };
+
+  it('should have an origin', () => {
+    for (const thing of things) {
+      expect(inheritedProperties(thing)?.['origin']).not.to.be.undefined;
+    }
+  });
+
+  it('should not have duplicate names', () => {
+    reduce(project.files, (fileResult, file) =>
+      reduce(file, (definitionResult, definition: LightweightDefinition) => {
+        expect(definitionResult[definition.name]).to.be.undefined;
+        definitionResult[definition.name] = true; // something that's not undefined
+
+        return definitionResult;
+      }, fileResult), {} as Record<string, true>);
+  });
+
+  it('should not have properties referencing SCThing', () => {
+    const allPropertyReferenceNames: (property: LightweightProperty) => string[] = property => reject([
+      property.type.referenceName!,
+      ...flatMap(property.properties, allPropertyReferenceNames),
+    ], isNil);
+
+    const typeHasSCThingReferences: (type?: LightweightType) => boolean = type => type?.referenceName
+      ? hasSCThingReferences(project.definitions[type.referenceName])
+      : some(type?.specificationTypes, typeHasSCThingReferences);
+
+    const hasSCThingReferences: (definition?: LightweightDefinition) => boolean = definition =>
+      isLightweightClass(definition)
+        ? chain(inheritedProperties(definition))
+          .flatMap(it => flatMap(it.properties, allPropertyReferenceNames))
+          .map(it => project.definitions[it] as LightweightDefinition)
+          .some(it => it.name === 'SCThing' || hasSCThingReferences(it))
+          .value()
+        : definition ? typeHasSCThingReferences(definition.type) : false;
+
+    for (const thing of things) {
+      expect(hasSCThingReferences(thing)).to.be.false;
+    }
+  });
+
+  function extendsSCThing(definition?: LightweightDefinition): boolean {
+    return isLightweightClass(definition)
+      ? chain([
+        ...(definition as LightweightClassDefinition).extendedDefinitions ?? [],
+        ...(definition as LightweightClassDefinition).implementedDefinitions ?? [],
+      ])
+        .map(it => it.referenceName)
+        .reject(isNil)
+        .some(it => it === 'SCThing' || extendsSCThing(project.definitions[it!]))
+        .value()
+      : false;
+  }
+
+  it('should extend SCThing if it is an SCThing', () => {
+    for (const thing of things) {
+      expect(extendsSCThing(thing)).to.be.true;
+    }
+  });
+
+  it('should not extend SCThing if it is an SCThingWithoutReferences', () => {
+    for (const thingWithoutReferences of thingsWithoutReferences) {
+      expect(extendsSCThing(thingWithoutReferences)).to.be.false;
+    }
+  });
+});

test/resources/Assessment.1.json

@@ -0,0 +1,36 @@
+{
+  "errorNames": [],
+  "instance": {
+    "attempt": 1,
+    "date": "2020-04-01",
+    "ects": 20,
+    "grade": "N/A",
+    "status": "ongoing",
+    "uid": "681a59a1-23c2-5d78-861a-8c86a3abf404",
+    "name": "Introductory courses extreme math",
+    "categories": [
+      "university assessment"
+    ],
+    "courseOfStudy": {
+      "academicDegree": "bachelor",
+      "academicDegreewithField": "Bachelor of Arts",
+      "academicDegreewithFieldShort": "B.A.",
+      "mainLanguage": {
+        "code": "de",
+        "name": "german"
+      },
+      "mode": "dual",
+      "name": "Astroturfing",
+      "timeMode": "parttime",
+      "type": "course of study",
+      "uid": "4c6f0a18-343d-5175-9fb1-62d28545c2aa"
+    },
+    "origin": {
+      "indexed": "2020-04-11T12:30:00Z",
+      "name": "Dummy",
+      "type": "remote"
+    },
+    "type": "assessment"
+  },
+  "schema": "SCAssessment"
+}

test/resources/Assessment.2.json

@@ -0,0 +1,51 @@
+{
+  "errorNames": [],
+  "instance": {
+    "attempt": 1,
+    "date": "2020-04-01",
+    "ects": 6,
+    "grade": "very much 1.0",
+    "status": "passed",
+    "uid": "681a59a1-23c2-5d78-861a-8c86a3abf303",
+    "name": "Mathe 9001",
+    "categories": [
+      "university assessment"
+    ],
+    "superAssessments": [
+      {
+        "attempt": 1,
+        "date": "2020-04-01",
+        "ects": 20,
+        "grade": "N/A",
+        "status": "ongoing",
+        "uid": "681a59a1-23c2-5d78-861a-8c86a3abf404",
+        "name": "Introductory courses extreme math",
+        "categories": [
+          "university assessment"
+        ],
+        "type": "assessment"
+      }
+    ],
+    "courseOfStudy": {
+      "academicDegree": "bachelor",
+      "academicDegreewithField": "Bachelor of Arts",
+      "academicDegreewithFieldShort": "B.A.",
+      "mainLanguage": {
+        "code": "de",
+        "name": "german"
+      },
+      "mode": "dual",
+      "name": "Astroturfing",
+      "timeMode": "parttime",
+      "type": "course of study",
+      "uid": "4c6f0a18-343d-5175-9fb1-62d28545c2aa"
+    },
+    "origin": {
+      "indexed": "2020-04-11T12:30:00Z",
+      "name": "Dummy",
+      "type": "remote"
+    },
+    "type": "assessment"
+  },
+  "schema": "SCAssessment"
+}

test/resources/indexable/Article.3.json

@@ -16,13 +16,13 @@
       }
     ],
     "firstPublished": "2008",
-    "sameAs": "https://hds2test.hebis.de/ubffm/Record/HEB198305427",
+    "sameAs": "https://ubffm.hds.hebis.de/Record/HEB198305427",
     "origin": {
       "indexed": "2018-09-11T12:30:00Z",
       "name": "HeBIS HDS",
       "originalId": "HEB198305427",
       "type": "remote",
-      "url": "https://hds2test.hebis.de/ubffm/"
+      "url": "https://ubffm.hds.hebis.de"
     },
     "isPartOf": {
       "uid": "bc5e5399-a24c-5c01-9c1b-0c8b83272087",

test/resources/indexable/Article.4.json

@@ -16,13 +16,13 @@
       }
     ],
     "firstPublished": "2002",
-    "sameAs": "https://hds2test.hebis.de/ubffm/Record/HEB107025590",
+    "sameAs": "https://ubffm.hds.hebis.de/Record/HEB107025590",
     "origin": {
       "indexed": "2018-09-11T12:30:00Z",
       "name": "HeBIS HDS",
       "originalId": "HEB107025590",
       "type": "remote",
-      "url": "https://hds2test.hebis.de/ubffm/"
+      "url": "https://ubffm.hds.hebis.de"
     },
     "isPartOf": {
       "uid": "f84c1851-042e-542f-ba7a-158b32dfb82f",

test/resources/indexable/Book.3.json

@@ -16,6 +16,7 @@
       }
     ],
     "firstPublished": "[ca. 1991]",
+    "lastPublished": "2000 Q1",
     "publications": [
       {
         "uid": "603a6574-8910-588a-9e83-cd26e6988c74",
@@ -27,13 +28,13 @@
         "name": "VDI"
       }
     ],
-    "sameAs": "https://hds2test.hebis.de/ubffm/Record/HEB022992618",
+    "sameAs": "https://ubffm.hds.hebis.de/Record/HEB022992618",
     "origin": {
       "indexed": "2018-09-11T12:30:00Z",
       "name": "HeBIS HDS",
       "originalId": "HEB022992618",
       "type": "remote",
-      "url": "https://hds2test.hebis.de/ubffm/"
+      "url": "https://ubffm.hds.hebis.de"
     }
   },
   "schema": "SCBook"

test/resources/indexable/Book.4.json

@@ -18,7 +18,7 @@
     "firstPublished": "2001",
     "publications": [
       {
-        "uid": "603a6574-8910-588a-9e83-cd26e6988c74",
+        "uid": "6333427c-0725-5398-9a04-11604680dae3",
         "type": "publication event",
         "locations": [
           "Paris"
@@ -27,7 +27,7 @@
         "name": "Belles Lettres"
       }
     ],
-    "sameAs": "https://hds2test.hebis.de/ubffm/Record/HEB102248788",
+    "sameAs": "https://ubffm.hds.hebis.de/Record/HEB102248788",
     "ISBNs": [
       "2251760385"
     ],
@@ -36,7 +36,7 @@
       "name": "HeBIS HDS",
       "originalId": "HEB102248788",
       "type": "remote",
-      "url": "https://hds2test.hebis.de/ubffm/"
+      "url": "https://ubffm.hds.hebis.de"
     }
   },
   "schema": "SCBook"

test/resources/indexable/CourseOfStudy.1.json

@@ -13,9 +13,8 @@
       "code": "de",
       "name": "german"
     },
-    "major": "Astroturfing",
     "mode": "dual",
-    "name": "Astroturfing Bachelor",
+    "name": "Astroturfing",
     "origin": {
       "indexed": "2018-09-11T12:30:00Z",
       "name": "Dummy",
@@ -27,8 +26,8 @@
       "uid": "b0f878fd-8fda-53b8-b065-a8d854c3d0d2"
     },
     "timeMode": "parttime",
-    "type": "course of studies",
+    "type": "course of study",
     "uid": "4c6f0a18-343d-5175-9fb1-62d28545c2aa"
   },
-  "schema": "SCCourseOfStudies"
+  "schema": "SCCourseOfStudy"
 }