import { fireEvent, render, screen } from "@testing-library/react";

import {
  MapNavigationContent,
  NavigationFeedbackProvider,
  PageNavigationContent,
  useNavigationFeedback,
} from "./NavigationFeedback";
import { mapSkeletonForPath } from "./PageLoadingSkeleton";
import { MAP_SKELETON_VARIANTS } from "./mapComponentSkeletonConfig";

let mockPathname = "/network-simulation";
jest.mock("next/navigation", () => ({ usePathname: () => mockPathname }));

function Harness() {
  const { reportPending } = useNavigationFeedback();
  return (
    <>
      <button onClick={() => reportPending("first", "/scada-data-cleaning", true)}>清洗</button>
      <button onClick={() => reportPending("second", "/audit-logs", true)}>审计</button>
      <button onClick={() => reportPending("first", "/scada-data-cleaning", false)}>取消旧导航</button>
      <button onClick={() => reportPending("second", "/audit-logs", false)}>结束导航</button>
      <PageNavigationContent>
        <div data-testid="map">原有地图</div>
        <MapNavigationContent><input aria-label="页面草稿" defaultValue="保留输入" /></MapNavigationContent>
      </PageNavigationContent>
    </>
  );
}

describe("page navigation feedback", () => {
  beforeEach(() => { mockPathname = "/network-simulation"; });

  it("shows the destination skeleton while preserving the map and a cancelled page's draft", () => {
    render(<NavigationFeedbackProvider><Harness /></NavigationFeedbackProvider>);
    const map = screen.getByTestId("map");
    const draft = screen.getByRole("textbox", { name: "页面草稿" });
    fireEvent.click(screen.getByText("清洗"));
    expect(screen.getByRole("status", { name: "正在加载数据清洗" })).toBeVisible();
    expect(screen.getByTestId("map")).toBe(map);
    expect(map).toBeVisible();
    expect(draft).not.toBeVisible();
    fireEvent.click(screen.getByText("取消旧导航"));
    expect(draft).toBeVisible();
    expect(draft).toHaveValue("保留输入");
    expect(screen.queryByRole("progressbar", { name: "正在切换页面" })).not.toBeInTheDocument();
  });

  it("does not dismiss a newer destination when the previous link settles", () => {
    render(<NavigationFeedbackProvider><Harness /></NavigationFeedbackProvider>);
    fireEvent.click(screen.getByText("清洗"));
    fireEvent.click(screen.getByText("审计"));
    fireEvent.click(screen.getByText("取消旧导航"));
    expect(screen.getByRole("status", { name: "正在加载审计日志" })).toBeVisible();
    expect(screen.getByRole("progressbar", { name: "正在切换页面" })).toBeVisible();
    fireEvent.click(screen.getByText("结束导航"));
    expect(screen.queryByRole("status", { name: "正在加载审计日志" })).not.toBeInTheDocument();
  });

  it("hands off to route/component loading boundaries as soon as history commits", () => {
    const { rerender } = render(<NavigationFeedbackProvider><Harness /></NavigationFeedbackProvider>);
    fireEvent.click(screen.getByText("清洗"));
    expect(screen.getByRole("progressbar", { name: "正在切换页面" })).toBeVisible();
    mockPathname = "/scada-data-cleaning";
    rerender(<NavigationFeedbackProvider><Harness /></NavigationFeedbackProvider>);
    expect(screen.queryByRole("progressbar", { name: "正在切换页面" })).not.toBeInTheDocument();
    expect(screen.getByRole("textbox", { name: "页面草稿" })).toBeVisible();
  });

  it("connects every existing map skeleton to its exact public route", () => {
    const paths = [
      "/network-simulation", "/scada-data-cleaning", "/health-risk-analysis", "/monitoring-place-optimization",
      ...["burst-detection", "burst-location", "burst-simulation", "contaminant-simulation", "dma-leak-detection", "flushing-analysis"].map((name) => "/hydraulic-simulation/" + name),
    ];
    expect(paths.map(mapSkeletonForPath).sort()).toEqual([...MAP_SKELETON_VARIANTS].sort());
    expect(mapSkeletonForPath("/system-admin")).toBeUndefined();
  });
});