import { describe, expect, it } from "vitest";

import { mapOperationPayload } from "../../src/adapters/http/resource-mapper.ts";
import {
  composeBoundaryMapperRegistry,
  mappingSuccess,
} from "../../src/contracts/boundary-mapper.ts";

describe("platform DTO mapper boundary", () => {
  it("fails closed when no feature mapper was injected", () => {
    expect(mapOperationPayload("UNKNOWN", {})).toEqual({
      ok: false,
      code: "MAPPING_INVARIANT_REJECTED",
    });
  });

  it("rejects duplicate mapper contributions before installation", () => {
    const mapper = {
      mapperId: "ResourceMapper",
      mapperVersion: 1,
      inputSchemaId: "ResourcePayload",
      outputContractId: "Resource",
      owner: "test",
      maxOutputItems: 1,
      map: (input: unknown) => mappingSuccess(input),
    };
    expect(() =>
      composeBoundaryMapperRegistry([
        { ResourceMapper: mapper },
        { ResourceMapper: mapper },
      ]),
    ).toThrow("duplicate boundary mapper");
  });
});