import { expect, test, type APIRequestContext } from "@playwright/test";

async function resetDemoData(request: APIRequestContext) {
  const login = await request.post("/api/v1/demo/login", { data: { role: "operations_manager" } });
  expect(login.ok()).toBeTruthy();
  const reset = await request.post("/api/v1/demo/reset");
  expect(reset.ok()).toBeTruthy();
}

test.describe.configure({ mode: "serial" });

test("scenario overview lists all 5 scenarios, ready right after a reset", async ({ page, request }) => {
  await resetDemoData(request);
  await page.goto("/login");
  await page.getByRole("button", { name: "Verken als Operationsmanager" }).click();
  await expect(page).toHaveURL(/\/dashboard$/);
  await page.goto("/scenarios");

  await expect(page.getByRole("heading", { name: "Probeer een demonstratiescenario" })).toBeVisible();
  const cards = page.locator(".scenario-card");
  await expect(cards).toHaveCount(5);
  for (const label of ["Klaar voor demo"]) {
    await expect(page.getByText(label).first()).toBeVisible();
  }
  await expect(page.getByText("Niet beschikbaar")).toHaveCount(0);
});

test("starting a scenario navigates to its fixed record", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Verken als Operationsmanager" }).click();
  await expect(page).toHaveURL(/\/dashboard$/);
  await page.goto("/scenarios");

  const duplicateCard = page.locator(".scenario-card", { hasText: "dubbele klant" });
  await duplicateCard.getByRole("link", { name: "Scenario starten" }).click();
  await expect(page).toHaveURL(/\/data-quality\/DQ-DEMO-DUPLICATE$/);
});

// The default Playwright viewport (1280x720) falls in the "standard desktop/tablet" tier
// (see useViewportTier.ts): the guide is a floating, non-modal panel that auto-collapses
// to a persistent progress chip the moment the visitor acts on "Ga naar deze stap".
test("demo guide: navigating steps, jumping to a step collapses to a chip, and the chip reopens it", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeVisible();
  await expect(page.getByRole("heading", { name: "1. Begrijp de operationele status" })).toBeVisible();

  await page.getByRole("button", { name: "Volgende" }).click();
  await expect(page.getByRole("heading", { name: "2. Open een boeking die aandacht nodig heeft" })).toBeVisible();

  await page.getByRole("button", { name: /6\. Stel een vraag/ }).click();
  await expect(page.getByRole("heading", { name: "6. Stel een vraag aan de procedureassistent" })).toBeVisible();

  await page.getByRole("button", { name: "Ga naar deze stap" }).click();
  await expect(page).toHaveURL(/\/knowledge$/);
  // Panel auto-collapses to a persistent chip -- it must never sit over the knowledge
  // page's primary "Ask" action after navigation.
  await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeHidden();
  const chip = page.getByRole("button", { name: /Demo-gids · stap 6 van 8/ });
  await expect(chip).toBeVisible();

  await chip.click();
  await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeVisible();
  await expect(page.getByRole("heading", { name: "6. Stel een vraag aan de procedureassistent" })).toBeVisible();
});

test("the collapsed chip has its own close control, independent of reopening it", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await page.getByRole("button", { name: "Ga naar deze stap" }).click();
  const chip = page.getByRole("button", { name: /Demo-gids · stap/ });
  await expect(chip).toBeVisible();

  await page.getByRole("button", { name: "Sluiten" }).click();
  await expect(chip).toBeHidden();
  await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeHidden();
  await expect(page.locator(".demo-guide-trigger")).toBeFocused();
});

test("demo guide progress persists across navigation and the trigger shows it", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await page.getByRole("button", { name: "Volgende" }).click();
  await page.getByRole("button", { name: "Volgende" }).click();
  await page.getByRole("button", { name: "Demo-gids inklappen" }).click();

  await expect(page.getByRole("button", { name: /^Demo-gids/ }).first()).toContainText("2/8");

  await page.goto("/vehicles");
  await page.getByRole("button", { name: /^Demo-gids/ }).first().click();
  await expect(page.getByRole("heading", { name: "3. Verwerk een retour" })).toBeVisible();
});

test("demo guide is not shown to a rental employee", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Verken als Verhuurmedewerker" }).click();
  await expect(page).toHaveURL(/\/dashboard$/);
  await expect(page.getByRole("button", { name: /Demo-gids/ })).toHaveCount(0);
});

test("restarting the demo from the guide resets data and returns to login", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeVisible();

  await page.getByRole("button", { name: "Demo opnieuw voorbereiden" }).click();
  await expect(page).toHaveURL(/\/login$/, { timeout: 10000 });
});

test("sidebar reset preserves guide progress on failure and clears it only after success", async ({ page }) => {
  let resetShouldFail = true;
  await page.route("**/api/v1/demo/reset", async (route) => {
    if (resetShouldFail) {
      await route.fulfill({
        status: 503,
        contentType: "application/json",
        body: JSON.stringify({
          error: { code: "TEST_UNAVAILABLE", message: "Injected reset failure", correlation_id: "reset-test" },
        }),
      });
      return;
    }
    await route.fulfill({ status: 200, contentType: "application/json", body: JSON.stringify({ status: "reset" }) });
  });

  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await page.getByRole("button", { name: "Volgende" }).click();
  await page.locator(".demo-guide-trigger").click();
  await expect(page.locator(".demo-guide-trigger")).toContainText("1/8");

  await page.getByRole("button", { name: "Demogegevens herstellen" }).click();
  await page.getByRole("button", { name: "Ja, herstellen" }).click();
  await expect(page.getByText("Demogegevens konden niet hersteld worden.")).toBeVisible();
  await expect(page.locator(".demo-guide-trigger")).toContainText("1/8");

  resetShouldFail = false;
  await page.getByRole("button", { name: "Demogegevens herstellen" }).click();
  await page.getByRole("button", { name: "Ja, herstellen" }).click();
  await expect(page).toHaveURL(/\/login$/);
  await page.getByRole("button", { name: "Verken als Operationsmanager" }).click();
  await expect(page.locator(".demo-guide-trigger")).toContainText("0/8");
});

test("wide desktop viewport docks the guide as a rail that never collapses to a chip", async ({ page }) => {
  await page.setViewportSize({ width: 1600, height: 1000 });
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  const panel = page.locator(".demo-guide-panel.is-wide");
  await expect(panel).toBeVisible();

  await page.getByRole("button", { name: "Ga naar deze stap" }).click();
  await expect(panel).toBeVisible();
  await expect(page.locator(".demo-guide-chip")).toHaveCount(0);
});

test("mobile viewport shows a bottom sheet with collapsed/half/full states and no horizontal overflow", async ({ page }) => {
  await page.setViewportSize({ width: 390, height: 844 });
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  const panel = page.locator(".demo-guide-panel.is-mobile");
  await expect(panel).toBeVisible();
  await expect(panel).toHaveClass(/sheet-half/);

  const scrollWidth = await page.evaluate(() => document.documentElement.scrollWidth);
  const clientWidth = await page.evaluate(() => document.documentElement.clientWidth);
  expect(scrollWidth).toBeLessThanOrEqual(clientWidth + 1);

  await page.locator(".demo-guide-sheet-handle").click();
  await expect(panel).toHaveClass(/sheet-full/);
  await page.locator(".demo-guide-sheet-handle").click();
  await expect(panel).toHaveClass(/sheet-collapsed/);
});

test("Escape collapses the standard-tier panel, then closes it", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeVisible();

  await page.keyboard.press("Escape");
  await expect(page.getByRole("button", { name: /Demo-gids · stap/ })).toBeVisible();
  await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeHidden();

  await page.keyboard.press("Escape");
  await expect(page.getByRole("button", { name: /Demo-gids · stap/ })).toBeHidden();
  await expect(page.locator(".demo-guide-trigger")).toBeFocused();
});

test("closing the guide cancels a delayed target lookup and restores trigger focus", async ({ page }) => {
  await page.setViewportSize({ width: 1600, height: 1000 });
  let releaseKnowledgeChunk = () => undefined;
  const knowledgeChunkGate = new Promise<void>((resolve) => {
    releaseKnowledgeChunk = resolve;
  });
  let markKnowledgeChunkRequested = () => undefined;
  const knowledgeChunkRequested = new Promise<void>((resolve) => {
    markKnowledgeChunkRequested = resolve;
  });

  await page.route(
    /\/(?:assets\/Knowledge-[^/?]+\.js|src\/pages\/Knowledge\.tsx)(?:\?.*)?$/,
    async (route) => {
      markKnowledgeChunkRequested();
      await knowledgeChunkGate;
      await route.continue();
    },
  );

  try {
    await page.goto("/login");
    await page.getByRole("button", { name: "Start begeleide demo" }).click();
    await page.getByRole("button", { name: /6\. Stel een vraag/ }).click();
    await page.getByRole("button", { name: "Ga naar deze stap" }).click();
    await knowledgeChunkRequested;

    await page
      .locator(".demo-guide-panel.is-wide")
      .getByRole("button", { name: "Sluiten" })
      .click();
    await expect(page.getByRole("dialog", { name: "Gegidste demo" })).toBeHidden();
    await expect(page.locator(".demo-guide-trigger")).toBeFocused();

    releaseKnowledgeChunk();
    const target = page.locator("#ask-heading");
    await expect(target).toBeVisible();
    await page.waitForTimeout(150);
    await expect(target).not.toBeFocused();
    await expect(target).not.toHaveClass(/demo-guide-highlight/);
  } finally {
    releaseKnowledgeChunk();
  }
});

test("going to a step scrolls, focuses and highlights the on-page target", async ({ page }) => {
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await page.getByRole("button", { name: /6\. Stel een vraag/ }).click();

  await page.getByRole("button", { name: "Ga naar deze stap" }).click();
  await expect(page).toHaveURL(/\/knowledge$/);

  const target = page.locator("#ask-heading");
  await expect(target).toBeFocused();
  await expect(target).toHaveClass(/demo-guide-highlight/);
});

test("going to a guide target on the already-active route still focuses and highlights it", async ({ page }) => {
  await page.setViewportSize({ width: 1600, height: 1000 });
  await page.goto("/login");
  await page.getByRole("button", { name: "Start begeleide demo" }).click();
  await page.getByRole("button", { name: /8\. Bekijk wat echt is/ }).click();
  await page.goto("/about");
  await page.getByRole("button", { name: /^Demo-gids/ }).first().click();

  await page.getByRole("button", { name: "Ga naar deze stap" }).click();

  const target = page.locator(".engineering-hero");
  await expect(target).toBeFocused();
  await expect(target).toHaveClass(/demo-guide-highlight/);
});