import { describe, expect, it } from "vitest";
import type { OpenClawConfig } from "../config/config.js";
import { applyAgentDefaultPrimaryModel } from "./model-default.js";

describe("applyAgentDefaultPrimaryModel", () => {
  it("does not mutate when already set", () => {
    const cfg = { agents: { defaults: { model: { primary: "a/b" } } } } as OpenClawConfig;
    const result = applyAgentDefaultPrimaryModel({ cfg, model: "a/b" });
    expect(result.changed).toBe(false);
    expect(result.next).toBe(cfg);
  });

  it("normalizes legacy models", () => {
    const cfg = { agents: { defaults: { model: { primary: "legacy" } } } } as OpenClawConfig;
    const result = applyAgentDefaultPrimaryModel({
      cfg,
      model: "a/b",
      legacyModels: new Set(["legacy"]),
    });
    expect(result.changed).toBe(false);
    expect(result.next).toBe(cfg);
  });
});