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);
    await route.fulfill({
      response,
      body: source.replace("this.world?.beginIntro();", "").replace(
        needle,
        `const { radioFixtureWorld } = await import('/tests/radio-fixture.ts'); const world = radioFixtureWorld(assets);`,
      ),
    });
  });
  await page.goto("/");
  await page.locator("#rom-file").setInputFiles(romPath);
  await expect(page.locator("#status")).toContainText("verified");
  await page.locator("#play").click();
}

test("the Pokégear's radio card tunes in Oak's Pokémon Talk and plays it", async ({ page }) => {
  const errors: string[] = [];
  page.on("pageerror", (error) => errors.push(error.message));
  await start(page);
  await page.keyboard.press("Enter");
  await page.locator("#dialogue-choice").getByRole("option", { name: /^POKéGEAR/ }).click();
  await expect(page.locator("#pokegear")).toBeVisible();
  await page.keyboard.press("ArrowRight");
  const radio = page.locator(".pokegear-radio");
  await expect(radio).toBeVisible();
  await expect(radio.locator(".pokegear-frequency")).toHaveText("FM 0.5");
  for (let press = 0; press < 8; press++) await page.keyboard.press("ArrowUp");
  await expect(radio.locator(".pokegear-frequency")).toHaveText("FM 4.5");
  await expect(radio.locator("strong")).toContainText("Talk");
  await expect(radio.locator(".pokegear-radio-text")).toContainText("MARY: PROF.OAK'S");
  await expect(radio.locator(".pokegear-radio-text")).toContainText("TALK!", { timeout: 10_000 });
  await page.keyboard.press("KeyZ");
  await expect(page.locator("#pokegear")).toBeHidden();
  expect(errors).toEqual([]);
});