Rocket.Chat/client/lib/createRouteGroup.ts

import { FlowRouter } from 'meteor/kadira:flow-router';
import type { ElementType } from 'react';

import { renderRouteComponent } from '../reactAdapters';

type RouteRegister = {
	(path: string, params: {
		name: string;
		lazyRouteComponent: () => Promise<ElementType>;
		props: Record<string, unknown>;
		action: (params?: Record<string, string>, queryParams?: Record<string, string>) => void;
	}): void;
};

export const createRouteGroup = (name: string, prefix: string, importRouter: () => Promise<ElementType>): RouteRegister => {
	const routeGroup = FlowRouter.group({
		name,
		prefix,
	});

	const registerRoute: RouteRegister = (path, { lazyRouteComponent, props, action, ...options }) => {
		routeGroup.route(path, {
			...options,
			action: (params, queryParams) => {
				if (action) {
					action(params, queryParams);
					return;
				}

				renderRouteComponent(importRouter, {
					template: 'main',
					region: 'center',
					propsFn: () => ({ lazyRouteComponent, ...options, params, queryParams, ...props }),
				});
			},
		});
	};

	return registerRoute;
};