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

import { resolveToolcraftAppIdentity } from "./app-identity";

describe("resolveToolcraftAppIdentity", () => {
  it("normalizes an explicit app identity", () => {
    const identity = resolveToolcraftAppIdentity({
      controlsTitle: "Controls",
      identity: {
        id: "  My Visual Tool  ",
        title: "My Visual Tool",
      },
      legacyAppId: "legacy-settings-id",
    });

    expect(identity).toEqual({
      id: "my-visual-tool",
      title: "My Visual Tool",
    });
    expect(Object.isFrozen(identity)).toBe(true);
  });

  it("uses the legacy settings transfer app id only as a compatibility seed", () => {
    expect(
      resolveToolcraftAppIdentity({
        controlsTitle: "Current Controls Title",
        legacyAppId: " Legacy Settings ID ",
      }),
    ).toEqual({
      id: "legacy-settings-id",
      title: "Current Controls Title",
    });
  });

  it.each(["", "!!!"])(
    "does not fall through from an explicit normalization-empty id %j",
    (id) => {
      expect(
        resolveToolcraftAppIdentity({
          controlsTitle: "Controls Fallback",
          identity: {
            id,
            title: "Explicit Title",
          },
          legacyAppId: "legacy-fallback",
        }),
      ).toEqual({
        id: "toolcraft-app",
        title: "Explicit Title",
      });
    },
  );

  it("falls back to the controls title and stable defaults", () => {
    expect(
      resolveToolcraftAppIdentity({
        controlsTitle: "Fallback Tool",
      }),
    ).toEqual({
      id: "fallback-tool",
      title: "Fallback Tool",
    });
    expect(resolveToolcraftAppIdentity({})).toEqual({
      id: "toolcraft-app",
      title: "Toolcraft App",
    });
  });
});