import { content } from "@deadhead/content";
import type { Ship } from "@deadhead/schema";
import { checkRoute, gameToReal, realToGame } from "@deadhead/sim";
import { screen, within } from "@testing-library/react";
import userEvent from "@testing-library/user-event";
import { afterEach, describe, expect, it, vi } from "vitest";
import { useClock } from "../src/clock/clock";
import { fakeApi, renderApp, samplePlayerState, shipExtras } from "./render";

const MONTH = 30.44 * 24 * 3_600_000;
const gameStart = realToGame(Date.parse(content.config.epoch.realStart), content.config);
const clipper = content.shipModel("clipper")!;
const [mars, ceres] = [content.location("mars")!, content.location("ceres-station")!];

/** The first monthly date on which a Clipper at Mars can reach Ceres. */
const NOW = (() => {
  for (let i = 0; i <= 16 * 12; i++) {
    const t = gameStart + i * MONTH;
    if (checkRoute(clipper, mars, ceres, content.config).ok) return gameToReal(t, content.config);
  }
  throw new Error("no such date");
})();

const atMars: Ship = {
  id: "s1",
  modelId: "clipper",
  name: "Swift Heron",
  status: "idle",
  locationId: "mars",
  dispatchId: null,
  pilotId: null,
  lastArrivalAt: 0,
  ...shipExtras("clipper"),
};

describe("map reachability per origin (Step 10L.8)", () => {
  afterEach(() => vi.useRealTimers());

  it("lists the Clipper from Mars, where it is, and not from Earth", async () => {
    vi.useFakeTimers({ toFake: ["Date", "setInterval", "clearInterval"] });
    vi.setSystemTime(NOW);
    useClock.setState({ offsetMs: 0, synced: true, now: NOW });
    const state = samplePlayerState({
      bays: [{ id: "b-earth", locationId: "earth" }],
      ships: [atMars],
    });
    state.locations = state.locations.map((l) =>
      l.id === "mars" ? { ...l, discovered: true } : l,
    );
    renderApp(fakeApi({ getPlayerState: () => state }), "/map");

    const canvas = await screen.findByTestId("map-canvas");
    await userEvent.click(
      within(canvas).getByRole("button", { name: "Tap Ceres Station (locked)" }),
    );
    const text = screen.getByLabelText("Reachable with").textContent ?? "";
    const parts = Object.fromEntries(
      text.split(" · ").map((part) => {
        const [origin, list] = part.split(": ");
        return [origin!, list!.split(", ")];
      }),
    );
    expect(parts["From Mars"]).toContain("Clipper");
    expect(parts["From Earth"] ?? []).not.toContain("Clipper");
  });
});