graplix/src/language/parse/getTupleToUsersetRelations.ts

Authorization framework for implementing Relation-based Access Control (ReBAC) with the Resolver (Inspired by [GraphQL](https://graphql.org))

import type { GraplixTupleToUsersetRelationDefinition } from "../../GraplixSchema";
import type { ValidatedUserset } from "../ValidatedModel";

export function getTupleToUsersetRelations(
  userSet: ValidatedUserset,
): GraplixTupleToUsersetRelationDefinition | undefined {
  if (
    userSet.tupleToUserset?.computedUserset.relation &&
    userSet.tupleToUserset.tupleset.relation
  )
    return {
      when: userSet.tupleToUserset.computedUserset.relation,
      from: userSet.tupleToUserset.tupleset.relation,
    };

  return undefined;
}