import { Errors } from '@wener/utils';
import { getEntityDef } from './defineEntity';
import type { IdentifiableEntity } from './types';

export function setCustomerRef<T extends { customerId?: string; customerType?: string }>(
	out: T = {} as T,
	entity?: IdentifiableEntity | string | null,
): T {
	if (!entity) {
		out.customerId = undefined;
		out.customerType = undefined;
		return out;
	}
	let def = getEntityDef(entity);
	Errors.InternalServerError.check(def, `Invalid customer ${entity}`);
	out.customerId = typeof entity === 'string' ? entity : entity.id;
	out.customerType = def.typeName;
	// todo check type ?
	return out;
}