import { Collection, Vertex } from "../vertex.js";
import { DeepNonNullable } from "../util.js";
import { ExpandKey } from "../common.js";
import { VertexQuery } from "../vertex-query/index.js";
import { Lookup } from "./util.js";

//#region src/core/interfaces/vertices/util/custom-vertex-export/assert-no-invalid-expand-keys.d.ts
type _AssertNoInvalidExpandKeys<Selected extends object, Available extends object> = { [K in keyof Selected]: K extends keyof Available ? Lookup<Selected[K], ExpandKey, false> extends infer a extends object ? Lookup<Available[K], ExpandKey, false> extends infer b extends object ? _AssertNoInvalidExpandKeys<a, b> : 'wtf!?' : never : `invalid expand key: ${K & string}` }[keyof Selected];
/**
 * Recursively asserts that all keys in the 'expand' section of Q are valid.
 * If any invalid keys are found, a descriptive string literal type is returned, otherwise `unknown` is returned.
 */
type AssertNoInvalidExpandKeys<V extends Vertex<Collection>, Q extends VertexQuery<V>> = ExpandKey & keyof Q extends never ? unknown : [_AssertNoInvalidExpandKeys<DeepNonNullable<Q>[ExpandKey], DeepNonNullable<VertexQuery<V>>[ExpandKey]>] extends [infer T] ? [T] extends [never] ? unknown : T : never;
//#endregion
export { AssertNoInvalidExpandKeys };
//# sourceMappingURL=assert-no-invalid-expand-keys.d.ts.map