root-subject.ts
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root-subject.ts
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	import * as Errors from "../../response/errors";
	import Subject from "../subject";

	import CollectionsSubjectFn from "./collections-subject";
	import SessionsSubjectFn from "./sessions-subject";
	import UsersSubjectFn from "./users-subject";
	import UploadedFilesSubjectFn from "./uploaded-files";
	import SpecificationsSubjectFn from "./specifications";
	import FormattedImagesSubjectFn from "./formatted-images";
	import App from "../../app/app";

	const child_subjects_generators = [
	CollectionsSubjectFn,
	SessionsSubjectFn,
	UsersSubjectFn,
	UploadedFilesSubjectFn,
	SpecificationsSubjectFn,
	FormattedImagesSubjectFn,
	];

	export default class RootSubject extends Subject {
	child_subjects: { [subject_name: string]: Subject };
	constructor(app: App) {
	super(app);
	this.child_subjects = {};

	child_subjects_generators.forEach((subjectFn) => {
	const subject = new subjectFn(app);
	this.child_subjects[subject.getName()] = subject;
	});
	}
	getName = () => "root";
	async getChildSubject(path_element: string) {
	const ret = this.child_subjects[path_element];
	if (ret === undefined) {
	throw new Errors.BadSubjectPath(
	`No child subject with key '${path_element}' in RootSubject`
	);
	} else {
	return ret;
	}
	}

	async performAction() {
	return null;
	}
	}