import { test, expect, Page, Locator, Response, APIRequestContext } from "@playwright/test";
import { WCV3Products } from "../../web/app/themes/haiku-atelier-2024/src/scripts/lib/types/api/v3/products";

test.describe.configure({ mode: "parallel", timeout: 60000 });

test("can scroll to the end of the grid", async ({ page }): Promise<void> => {
  await scrollToGridsEnd(page);
});

test("can access all Products' pages", async ({ page, request }): Promise<void> => {
  await page.goto("https://haikuatelier.gcch.local/shop/");
  const links = await getAllProductsLinks(page, request);

  for (const link of links) {
    // Vérifie que le lien de la page retourne OK.
    const req = await request.get(link as string);
    expect(req, "The Product's page is accessible").toBeOK();
  }
});

const getAllProductsLinks = async (page: Page, request: APIRequestContext): Promise<Array<string>> => {
  const nonce = await page.locator("data#nonce").textContent();
  const authString = await page.locator("data#auth-string").textContent();

  if (nonce === null || nonce === "") {
    throw new Error("Le nonce ne peut être vide.");
  }
  if (authString === null || authString === "") {
    throw new Error("L'en-tête auth-string ne peut être vide.");
  }

  const response = await request.get("/wp-json/wc/v3/products?page=1&per_page=100&status=publish", {
    headers: { Nonce: nonce, Authorization: `Basic ${authString}` },
  });
  const json = await response.json() as WCV3Products;
  const links = json.map(p => p.permalink);

  return links;
};

const scrollToGridsEnd = async (page: Page): Promise<void> => {
  await page.goto("https://haikuatelier.gcch.local/shop/");

  let hasMoreProducts = true;
  let currentPageNumber = "1";

  const productsGrid: Locator = page.locator(".grille-produits");
  await expect(productsGrid).toBeVisible();

  const showMoreButton: Locator = page.getByRole("button", { name: "Show more" });
  await expect(productsGrid).toBeVisible();

  while (hasMoreProducts) {
    expect(await (productsGrid.getAttribute("data-page"))).toBe(currentPageNumber);

    const newProductsResponse: Promise<Response> = page.waitForResponse(
      new RegExp(".*wp-json\/wc\/v3\/products.*"),
    );
    await showMoreButton.click();
    await newProductsResponse;

    const newPageNumber = String(Number(currentPageNumber) + 1);
    // Créé un nouveau Locator que l'on attend pour s'assurer que l'attribut soit bien mis à jour.
    const gridWithNewPageNumber = page.locator(`.grille-produits[data-page="${newPageNumber}"]`);
    await gridWithNewPageNumber.waitFor();

    // Redondance pour expliciter la raison de l'assertion.
    expect(await (productsGrid.getAttribute("data-page"))).toBe(newPageNumber);
    currentPageNumber = newPageNumber;

    // La fin de la grille est atteint.
    if (await showMoreButton.isHidden()) {
      hasMoreProducts = false;
    }
  }
};