import "@testing-library/jest-dom/vitest";
import { cleanup, fireEvent, render, screen, within } from "@testing-library/react";
import { afterEach, describe, expect, it, vi } from "vitest";
import type { UpcomingRouteEvent } from "../src/routeEvents";
import { UpcomingEventsPanel } from "../src/components/UpcomingEventsPanel";

afterEach(cleanup);

describe("UpcomingEventsPanel", () => {
  it("shows the nearest event first, preserves chronological list order and filters by kind", () => {
    render(<UpcomingEventsPanel events={events} hasRoute />);

    const hero = screen.getByText("Nächstes Ereignis").closest("article");
    expect(hero).not.toBeNull();
    expect(within(hero!).getByText("Schleuse Nah")).toBeVisible();
    expect(within(hero!).getByText("3,0 sm")).toBeVisible();
    expect(within(hero!).getByText(/ETA/)).toBeVisible();

    const list = screen.getByRole("list");
    expect(
      within(list)
        .getAllByRole("button")
        .map((button) => button.textContent)
    ).toEqual([
      expect.stringContaining("Schleuse Nah"),
      expect.stringContaining("Brücke Mitte"),
      expect.stringContaining("Hafen Weit")
    ]);
    expect(within(list).getAllByText("Infos")).toHaveLength(3);

    fireEvent.click(screen.getByRole("button", { name: /Brücken/ }));
    expect(screen.getByRole("button", { name: /Brücken/ })).toHaveAttribute(
      "aria-pressed",
      "true"
    );
    expect(screen.getAllByText("Brücke Mitte")).toHaveLength(2);
    expect(screen.queryByText("Schleuse Nah")).not.toBeInTheDocument();
    expect(screen.queryByText("Hafen Weit")).not.toBeInTheDocument();
    expect(within(screen.getByRole("list")).getAllByRole("button")).toHaveLength(1);
  });

  it("opens a lock drilldown with direct contact, VHF, hours and map actions", () => {
    const onShowOnMap = vi.fn();
    render(
      <UpcomingEventsPanel
        events={events}
        hasRoute
        onShowOnMap={onShowOnMap}
      />
    );

    const hero = screen.getByText("Nächstes Ereignis").closest("article");
    fireEvent.click(within(hero!).getByRole("button", { name: /Schleuse Nah/ }));

    const detail = screen.getByRole("region", { name: "Schleuse Nah" });
    expect(within(detail).getByText("Mo–Fr 08:00–18:00")).toBeVisible();
    expect(within(detail).getByText("Kanal 12")).toBeVisible();
    expect(within(detail).getByRole("link", { name: "Schleuse Nah anrufen" })).toHaveAttribute(
      "href",
      "tel:+4949123456"
    );
    expect(
      within(detail).getByRole("link", { name: "Website von Schleuse Nah öffnen" })
    ).toHaveAttribute("href", "https://lock.example/");

    fireEvent.click(within(detail).getByRole("button", { name: "Auf Karte zeigen" }));
    expect(onShowOnMap).toHaveBeenCalledWith(events[0]);

    fireEvent.click(within(detail).getByRole("button", { name: "Zurück zur Ereignisliste" }));
    expect(screen.getByText("Nächstes Ereignis")).toBeVisible();
  });

  it("shows bridge clearance, required height and reserve in its drilldown", () => {
    render(<UpcomingEventsPanel events={events} hasRoute />);

    fireEvent.click(screen.getByRole("button", { name: /Brücken/ }));
    const hero = screen.getByText("Nächstes Ereignis").closest("article");
    fireEvent.click(within(hero!).getByRole("button", { name: /Brücke Mitte/ }));

    const detail = screen.getByRole("region", { name: "Brücke Mitte" });
    expect(within(detail).getByText("H 4,2 m")).toBeVisible();
    expect(within(detail).getByText("3.8 m")).toBeVisible();
    const reserve = within(detail).getByText("Reserve").closest("div");
    expect(reserve).toHaveTextContent("0.4 m Reserve");
    expect(
      within(detail).getByRole("link", { name: "Brücke Mitte anrufen" })
    ).toHaveAttribute("href", "tel:+4949123457");
    expect(
      within(detail).getByRole("link", { name: "Website von Brücke Mitte öffnen" })
    ).toHaveAttribute("href", "https://bridge.example/");
    expect(within(detail).queryByRole("button", { name: "Auf Karte zeigen" })).not.toBeInTheDocument();
  });

  it.each([
    {
      props: { hasRoute: false, events: [] as UpcomingRouteEvent[] },
      text: "Noch keine Route",
      role: undefined
    },
    {
      props: { hasRoute: true, events: [] as UpcomingRouteEvent[], loading: true },
      text: "Ereignisse werden geladen",
      role: "status"
    },
    {
      props: {
        hasRoute: true,
        events: [] as UpcomingRouteEvent[],
        error: "Datenquelle antwortet nicht"
      },
      text: "Ereignisse nicht erreichbar",
      role: "alert"
    },
    {
      props: { hasRoute: true, events: [] as UpcomingRouteEvent[] },
      text: "Keine bevorstehenden Ereignisse",
      role: undefined
    }
  ])("renders the state '$text'", ({ props, text, role }) => {
    render(<UpcomingEventsPanel {...props} />);

    expect(screen.getByText(text)).toBeVisible();
    if (role) {
      expect(screen.getByRole(role)).toBeVisible();
    }
  });
});

const events: UpcomingRouteEvent[] = [
  {
    kind: "lock",
    id: "lock-near",
    name: "Schleuse Nah",
    coordinate: { lat: 53.1, lon: 7.1 },
    routeDistanceNm: 8,
    distanceFromRouteNm: 0.02,
    remainingNm: 3,
    eta: eta("2026-07-23T12:30:00.000Z", 30),
    feature: {
      id: "lock-near",
      name: "Schleuse Nah",
      coordinate: { lat: 53.1, lon: 7.1 },
      routeDistanceNm: 8,
      distanceFromRouteNm: 0.02,
      openingHours: "Mo–Fr 08:00–18:00",
      phone: "+49 49 123456",
      vhf: "Kanal 12",
      website: "lock.example"
    }
  },
  {
    kind: "harbour",
    id: "harbour-far",
    name: "Hafen Weit",
    coordinate: { lat: 53.3, lon: 7.3 },
    routeDistanceNm: 17,
    distanceFromRouteNm: 0.4,
    remainingNm: 12,
    eta: eta("2026-07-23T14:00:00.000Z", 120),
    feature: {
      id: "harbour-far",
      name: "Hafen Weit",
      coordinate: { lat: 53.3, lon: 7.3 },
      kind: "marina",
      amenities: { water: "available", electricity: true },
      phone: null,
      website: null
    }
  },
  {
    kind: "bridge",
    id: "bridge-middle",
    name: "Brücke Mitte",
    coordinate: { lat: 53.2, lon: 7.2 },
    routeDistanceNm: 11,
    distanceFromRouteNm: 0.01,
    remainingNm: 6,
    eta: eta("2026-07-23T13:00:00.000Z", 60),
    feature: {
      id: "bridge-middle",
      name: "Brücke Mitte",
      label: "Brücke Mitte H 4,2 m",
      coordinate: { lat: 53.2, lon: 7.2 },
      distanceNm: 0.01,
      clearanceM: 4.2,
      clearanceLabel: "H 4,2 m",
      requiredAirDraftM: 3.8,
      marginM: 0.4,
      status: "tight",
      source: "Test",
      phone: "+49 49 123457",
      website: "bridge.example",
      operator: "Brückenamt"
    }
  }
];

function eta(estimatedAt: string, minutesFromProgress: number) {
  return {
    estimatedAt,
    minutesFromProgress,
    speedKn: 6,
    speedSource: "vessel-cruise-speed" as const,
    referenceTime: "2026-07-23T12:00:00.000Z",
    referenceSource: "current-time" as const
  };
}