import { test, expect, type Page } from "@playwright/test";
import { existsSync } from "node:fs";
import { resolve } from "node:path";

const romPath = resolve(
  process.env.CRYSTAL_ROM_PATH ?? "Pokemon - Crystal Version (UE) (V1.1) [C][!].gbc",
);
test.beforeEach(() => test.skip(!existsSync(romPath), "Requires the local user ROM."));

async function start(page: Page) {
  await page.route("**/src/game/runtime.ts", async (route) => {
    const response = await route.fetch(),
      source = await response.text();
    const needle = "const world = new GameWorld(assets);";
    expect(source).toContain(needle);
    // Fixture worlds stand in for a saved session, so no introduction runs.
    expect(source).toContain("this.world?.beginIntro();");
    await route.fulfill({
      response,
      body: source.replace("this.world?.beginIntro();", "").replace(
        needle,
        `const { pokedexFixtureWorld } = await import('/tests/pokedex-fixture.ts'); const world = pokedexFixtureWorld(assets);`,
      ),
    });
  });
  await page.clock.install({ time: new Date("2026-09-22T12:00:00") });
  await page.goto("/");
  await page.locator("#rom-file").setInputFiles(romPath);
  await expect(page.locator("#status")).toContainText("verified");
  await page.clock.pauseAt(new Date("2026-09-22T12:05:00"));
  await page.locator("#play").click();
}

test("the Map tab shows the Johto atlas with the player and open areas", async ({ page }) => {
  const errors: string[] = [];
  page.on("pageerror", (error) => errors.push(error.message));
  await start(page);
  await page.locator("#tab-map").click();
  const atlas = page.locator("#atlas");
  await expect(atlas).toBeVisible();
  await expect(page.locator("#atlas-title")).toHaveText("Johto");
  await expect(page.locator("#atlas-regions button")).toHaveCount(0);
  await expect(page.locator("#atlas-here")).toHaveText("You are in NEW BARK TOWN.");
  await expect(page.locator("#atlas-map")).toHaveAttribute("aria-label", "Johto map, you are in NEW BARK TOWN");
  const open = page.locator("#atlas-open li");
  await expect(open.first()).toHaveText("NEW BARK TOWN");
  await expect(page.locator("#atlas-open")).toContainText("VIOLET CITY");
  await expect(page.locator("#atlas-open")).toContainText("AZALEA TOWN");
  await expect(page.locator("#atlas-open")).toContainText("BLACKTHORN CITY");
  // Mt. Silver's cave is on Johto's map, opened with Kanto's postgame.
  await expect(page.locator("#atlas-open")).toContainText("SILVER CAVE");
  expect(errors).toEqual([]);
});