import { expect, test, type APIRequestContext } from "@playwright/test";
import type {
  AuditEvent,
  AutomationRun,
  DataQualityIssueDetail,
  RegisterReturnResult,
} from "../src/api/types";

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("five-minute demo script end to end", async ({ page, request }) => {
  const proof: { returned?: RegisterReturnResult } = {};

  // Reset via a throwaway API session so the UI test starts from the deterministic seed
  // regardless of what earlier test runs mutated (S1 return, S2 merge, etc.).
  await resetDemoData(request);

  await test.step("1. login as Operations Manager", async () => {
    await page.goto("/login");
    await expect(page.getByText(/Synthetische demo · geen echte klant-/)).toBeVisible();
    await page.getByRole("button", { name: "Verken als Operationsmanager" }).click();
    await expect(page).toHaveURL(/\/dashboard$/);
  });

  await test.step("2. verify dashboard metrics are loaded", async () => {
    await expect(page.getByRole("heading", { name: "Wagenparkstatus" })).toBeVisible();
    const metricValues = page.locator(".metric-cell dd");
    await expect(metricValues.first()).toBeVisible();
    const values = await metricValues.allTextContents();
    expect(values.length).toBeGreaterThan(0);
    expect(values.some((v) => Number(v) > 0)).toBeTruthy();
  });

  await test.step("3. open active demo booking", async () => {
    await page.goto("/bookings/BK-DEMO-RETURN");
    await expect(page.getByRole("heading", { name: "BK-DEMO-RETURN" })).toBeVisible();
    await expect(page.getByText("actief", { exact: true })).toBeVisible();
  });

  await test.step("4. register an odometer-regression return (S1)", async () => {
    const vehicleOdometerText = await page
      .locator(".detail-grid div", { hasText: "Startkilometerstand" })
      .locator("dd")
      .textContent();
    const startOdometer = parseInt((vehicleOdometerText ?? "0").replace(/\D/g, ""), 10);
    const lowReading = Math.max(0, startOdometer - 500);

    await page.getByLabel("Eindkilometerstand (km)").fill(String(lowReading));
    await page.getByLabel("Brandstofniveau (%)").fill("55");
    await page.getByRole("button", { name: "Retour nakijken" }).click();
    await expect(page.getByRole("heading", { name: "Retourimpact nakijken" })).toBeVisible();

    const returnResponsePromise = page.waitForResponse(
      (response) =>
        response.request().method() === "POST" &&
        response.url().endsWith("/api/v1/bookings/BK-DEMO-RETURN/return"),
    );
    await page.getByRole("button", { name: "Retour bevestigen" }).click();
    const returnResponse = await returnResponsePromise;
    expect(returnResponse.status()).toBe(201);
    proof.returned = (await returnResponse.json()) as RegisterReturnResult;

    await expect(page.getByRole("heading", { name: "Retour geregistreerd" })).toBeVisible();
  });

  await test.step("5. verify the persisted quality issue, outbox event and audit trace", async () => {
    const returned = proof.returned;
    if (!returned) throw new Error("The return API response was not captured");

    expect(returned.odometer_regression).toBe(true);
    expect(returned.quality_issue_ref).toMatch(/^DQ-RET-/);
    const qualityIssueRef = returned.quality_issue_ref;
    if (!qualityIssueRef) throw new Error("The regression return did not create a quality issue");

    await expect(page.getByRole("link", { name: qualityIssueRef })).toBeVisible();
    await expect(page.getByText(/Klaargezet voor verwerking \(/)).toBeVisible();

    // Use the page-bound request context: the throwaway reset session above is
    // deliberately invalidated by reset, while this context shares the manager login
    // cookie established in step 1.
    const issueResponse = await page.request.get(`/api/v1/data-quality/issues/${qualityIssueRef}`);
    expect(issueResponse.ok()).toBeTruthy();
    const issue = (await issueResponse.json()) as DataQualityIssueDetail;
    expect(issue.public_ref).toBe(qualityIssueRef);
    expect(issue.rule_type).toBe("odometer_regression");
    expect(issue.status).toBe("open");
    expect(issue.entity_ref).toBe(returned.vehicle_ref);

    const workflowsResponse = await page.request.get("/api/v1/workflows");
    expect(workflowsResponse.ok()).toBeTruthy();
    const workflows = (await workflowsResponse.json()) as AutomationRun[];
    const workflow = workflows.find((run) => run.event_id === returned.workflow_event_id);
    expect(workflow).toBeDefined();
    expect(workflow).toMatchObject({
      event_type: "vehicle.returned.v1",
      aggregate_ref: returned.booking_ref,
    });

    const auditResponse = await page.request.get(
      `/api/v1/audit?correlation_id=${encodeURIComponent(returned.correlation_id)}`,
    );
    expect(auditResponse.ok()).toBeTruthy();
    const trace = (await auditResponse.json()) as AuditEvent[];
    expect(trace.map((event) => event.action)).toEqual(
      expect.arrayContaining([
        "data_quality_issue_created",
        "return_registered",
        "vehicle_status_changed",
      ]),
    );
    expect(trace.every((event) => event.correlation_id === returned.correlation_id)).toBe(true);
  });

  await test.step("6. resolve the duplicate customer scenario (S2)", async () => {
    await page.goto("/data-quality/DQ-DEMO-DUPLICATE");
    await expect(page.getByRole("heading", { name: "Vergelijken en samenvoegen" })).toBeVisible();
    await page.getByRole("button", { name: /Samenvoegen met CUS-0012/ }).click();
    await page.getByRole("button", { name: "Ja, samenvoegen" }).click();
    await expect(page.locator(".badge.status-resolved")).toBeVisible();
  });

  await test.step("7. ask the damage question and inspect citations (S6)", async () => {
    await page.goto("/knowledge");
    await page
      .getByPlaceholder(/Wat moet ik doen wanneer een voertuig beschadigd terugkomt/)
      .fill("Wat moet ik doen wanneer een voertuig terugkomt met schade?");
    await page.getByRole("button", { name: "Vraag stellen" }).click();
    await expect(page.getByText("Onderbouwd met geciteerde procedures")).toBeVisible({ timeout: 15_000 });
    const damageSource = page.locator(".source-card", { hasText: /zichtbare of gemelde schade/i }).first();
    await expect(damageSource).toBeVisible();
    await expect(damageSource).toContainText(/zichtbare of gemelde schade/i);
  });

  await test.step("8. inspect audit entries", async () => {
    await page.goto("/audit");
    await page.getByLabel("Actie").fill("return_registered");
    await expect(page.locator(".audit-group-list li").first()).toBeVisible();
    await expect(page.getByText("Voertuigretour geregistreerd").first()).toBeVisible();
  });

  await test.step("9. verify responsive navigation at mobile width", async () => {
    await page.setViewportSize({ width: 360, height: 800 });
    await page.goto("/dashboard");
    await expect(page.getByRole("button", { name: /Synthetische demo/ })).toBeVisible();
    await expect(page.getByRole("link", { name: "Overzicht" }).first()).toBeVisible();
    const scrollWidth = await page.evaluate(() => document.documentElement.scrollWidth);
    const clientWidth = await page.evaluate(() => document.documentElement.clientWidth);
    expect(scrollWidth).toBeLessThanOrEqual(clientWidth + 1);
  });
});