/**
 * Core regression: library, study feed, homework entry, review card, and the
 * desktop shell + settings panel.
 */
import { BASE, DECK, launchBrowser, makeChecker, makePage, seed } from "./lib.mjs";

const { check, finish } = makeChecker();
const browser = await launchBrowser();

/* 1. desktop shell --------------------------------------------------- */
{
  const { context, page } = await makePage(browser, { width: 1280, height: 900, deviceScaleFactor: 1 });
  await seed(page, { decks: [DECK], folders: [{ id: "fold_1", name: "Biology", createdAt: 1 }] });
  await page.goto(BASE, { waitUntil: "networkidle" });
  await page.waitForTimeout(900);

  check("library title", await page.getByRole("heading", { name: "Your icebox" }).isVisible());
  const sidebar = page.getByRole("complementary", { name: "Sidebar" });
  for (const row of ["New deck", "New homework", "All decks", "Unorganized", "Biology", "Progress", "Exam mode", "Settings"]) {
    check(`sidebar row: ${row}`, (await sidebar.getByText(row, { exact: true }).count()) >= 1);
  }
  check("desktop hides the tab bar", !(await page.locator("nav.tabbar").isVisible()));
  check("desktop keeps the import button", await page.getByRole("button", { name: "Import JSON" }).isVisible());

  await page.getByRole("button", { name: "Collapse sidebar" }).click();
  await page.waitForTimeout(400);
  check("sidebar collapses", await page.getByRole("button", { name: "Expand sidebar" }).isVisible());
  await page.getByRole("button", { name: "Expand sidebar" }).click();
  await page.waitForTimeout(400);
  check("sidebar expands again", await page.getByRole("button", { name: "Collapse sidebar" }).isVisible());

  // Settings from the sidebar footer.
  await sidebar.getByRole("button", { name: "Settings" }).click();
  const dialog = page.getByRole("dialog");
  await dialog.waitFor({ timeout: 6000 });
  await page.waitForTimeout(700);
  check("settings: connection card", await dialog.getByText("Connection").isVisible());
  check("settings: key field", await dialog.locator("#ollama-api-key").count() === 1);
  check("settings: learning section", await dialog.getByText("Learning").isVisible());
  check("settings: data section", await dialog.getByText("Data & backup").isVisible());
  check("settings: sync section", await dialog.getByText("Sync").first().isVisible());

  // Health panel: it can take a while while the Ollama probe answers.
  const visionRow = dialog.getByText("Vision model");
  await visionRow.waitFor({ timeout: 25_000 }).catch(() => {});
  check("health panel present (vision row)", (await visionRow.count()) >= 1);
  check("text model row", (await dialog.getByText("Text model").count()) >= 1);
  await page.keyboard.press("Escape");
  await page.waitForTimeout(500);
  await context.close();
}

/* 2. library: tabs, deck card, menu, folders ------------------------- */
{
  const { context, page } = await makePage(browser);
  await seed(page, { decks: [DECK], folders: [{ id: "fold_1", name: "Biology", createdAt: 1 }] });
  await page.goto(BASE, { waitUntil: "networkidle" });
  await page.waitForTimeout(900);

  check("library tabs present", await page.getByRole("link", { name: "Study Decks", exact: true }).isVisible());
  check("deck card title", await page.getByText("Sky deck").first().isVisible());
  check("deck meta line", (await page.getByText(/2 activities/).count()) >= 1);
  check("folder pills visible with folders", (await page.locator(".folder-pill").count()) >= 1);
  check("review card has no exam link", (await page.getByRole("link", { name: /Exam mode/ }).count()) === 0);
  check("review card keeps due + mistakes", (await page.getByText(/Review due ·/).count()) >= 1 && (await page.getByText(/Mistakes ·/).count()) >= 1);

  await page.getByRole("button", { name: "Deck actions" }).click();
  await page.waitForTimeout(300);
  for (const item of ["Rename", "Export JSON", "Share", "Regenerate deck", "Delete deck"]) {
    check(`deck menu: ${item}`, (await page.getByRole("button", { name: item, exact: true }).count()) >= 1);
  }
  await page.keyboard.press("Escape");
  await page.waitForTimeout(400);

  await page.getByRole("link", { name: "Homework", exact: true }).click();
  await page.waitForTimeout(600);
  check("homework tab empty state", await page.getByRole("link", { name: "New homework", exact: true }).isVisible());
  await context.close();
}

/* 3. study feed ------------------------------------------------------ */
{
  const { context, page } = await makePage(browser);
  await seed(page, { decks: [DECK] });
  await page.goto(`${BASE}/deck/seed_deck`, { waitUntil: "networkidle" });
  await page.waitForTimeout(900);
  const firstSlide = page.getByRole("region", { name: /Activity 1 of/ });
  check("feed: first activity", await firstSlide.getByText("What colour is a clear daytime sky?").isVisible());
  await page.getByRole("button", { name: "Green" }).click();
  await page.waitForTimeout(500);
  check("feed: wrong answer shows the correct one", await page.getByText(/Correct answer/i).first().isVisible());
  await page.getByRole("button", { name: "Next" }).click();
  await page.waitForTimeout(800);
  await page.getByRole("button", { name: "Scattering" }).click();
  await page.waitForTimeout(500);
  await page.getByRole("button", { name: "Next" }).click();
  await page.waitForTimeout(900);
  check("feed: results appear", await page.getByText(/50%/).first().isVisible());
  check("feed: results summary", (await page.getByText(/You got 1 of 2 right/).count()) >= 1);
  await context.close();
}

/* 4. homework entry -------------------------------------------------- */
{
  const { context, page } = await makePage(browser);
  await seed(page, { decks: [] });
  await page.goto(`${BASE}/homework`, { waitUntil: "networkidle" });
  await page.waitForTimeout(800);
  check("homework: step headline", await page.getByRole("heading", { name: "The assignment" }).isVisible());
  check("homework: empty placeholder", await page.getByText("Nothing added yet").isVisible());
  await context.close();
}

/* 5. legal pages + the cookie notice --------------------------------- */
{
  const { context, page } = await makePage(browser);
  // consent: false — this block is the one place the notice must be visible.
  await seed(page, { decks: [], consent: false });
  for (const [path, heading] of [
    ["/privacy", "Privacy policy"],
    ["/terms", "Terms of service"],
    ["/cookies", "Cookie policy"],
  ]) {
    await page.goto(`${BASE}${path}`, { waitUntil: "networkidle" });
    await page.waitForTimeout(600);
    check(`legal: ${path} renders`, await page.getByRole("heading", { name: heading, level: 1 }).isVisible());
  }
  check("legal: the pages carry real sections", (await page.locator("article section").count()) >= 3);

  await page.goto(BASE, { waitUntil: "networkidle" });
  await page.waitForTimeout(700);
  const notice = page.getByRole("region", { name: "About cookies" });
  check("consent: the notice shows once", (await notice.count()) === 1);
  await page.getByRole("button", { name: "Got it" }).click();
  await page.waitForTimeout(400);
  await page.reload({ waitUntil: "networkidle" });
  await page.waitForTimeout(800);
  check("consent: dismissing is remembered", (await notice.count()) === 0);
  await context.close();
}

await browser.close();
finish();