import { describe, expect, it } from "vitest";
import {
  ADMIN_GROUP,
  BOTTOM_NAV_HREFS,
  NAV_GROUPS,
  visibleNavGroups,
} from "./nav-config";

const ALL_ITEMS = [...NAV_GROUPS, ADMIN_GROUP].flatMap((group) => group.items);
const ALL_PERMISSIONS = ALL_ITEMS.flatMap((item) =>
  item.permission === undefined ? [] : [item.permission].flat(),
);

function hrefs(permissions: string[]): string[] {
  return visibleNavGroups({ permissions })
    .flatMap((group) => group.items)
    .map((item) => item.href);
}

describe("nav-config", () => {
  it('every sidebar area is reachable on a phone via bottom nav or „Mehr"', () => {
    const sidebar = hrefs(ALL_PERMISSIONS);
    // „Mehr" lists every visible group, the bottom nav the four favourites.
    const phone = new Set([...BOTTOM_NAV_HREFS, ...sidebar]);

    expect(sidebar.length).toBe(ALL_ITEMS.length);
    expect(sidebar.every((href) => phone.has(href))).toBe(true);
    expect(sidebar).toContain("/honey-batches");
  });

  it("keeps every bottom nav entry in the nav config", () => {
    const known = ALL_ITEMS.map((item) => item.href);
    expect(BOTTOM_NAV_HREFS.every((href) => known.includes(href))).toBe(true);
  });

  it("admin entries need their permission", () => {
    expect(hrefs([])).not.toContain("/settings/audit-log");
    expect(hrefs([])).not.toContain("/settings/backup");
    expect(visibleNavGroups({ permissions: [] }).map((g) => g.label)).not.toContain(
      "Verwaltung",
    );

    const admin = visibleNavGroups({ permissions: ["audit:read"] }).find(
      (group) => group.label === "Verwaltung",
    );
    expect(admin?.items.map((item) => item.href)).toEqual(["/settings/audit-log"]);
  });

  it("hides items the user may not see", () => {
    expect(hrefs([])).not.toContain("/winter");
    expect(hrefs(["winter-checks:read"])).toContain("/winter");
  });
});