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

test.describe("Todo lifecycle E2E", () => {
  test.describe.configure({ mode: "serial" });

  const title = `E2E Todo ${Date.now()}`;
  const description = "E2E Desc";

  // Hitta create-formen
  const getCreateForm = (page: Page) =>
    page.locator("form", { has: page.locator('input[name="title"]') });

  // Hitta tabellraden för en titel
  const getRowByTitle = (page: Page, t: string) =>
    page.locator("tr", { has: page.locator(".fw-semibold", { hasText: t }) });

  test("user can create a todo and see it on dashboard", async ({ page }) => {
    await page.goto("/dashboard");

    const createForm = getCreateForm(page);

    // Fyll i formuläret
    await createForm.locator('input[name="title"]').fill(title);
    await createForm.locator('textarea[name="description"]').fill(description);
    await createForm.locator('select[name="status"]').selectOption("not-started");

    // Skicka
    await createForm.locator('button[type="submit"]').click();

    // Syns i listan
    await expect(page.locator(".fw-semibold", { hasText: title })).toBeVisible();
  });

  test("user can update status to done", async ({ page }) => {
    await page.goto("/dashboard");

    const row = getRowByTitle(page, title);
    await expect(row).toBeVisible();

    // Ändra status
    const statusSelect = row.locator('select[name="status"]');
    await Promise.all([
      page.waitForLoadState("networkidle"),
      statusSelect.selectOption("done"),
    ]);

    // Kontrollera att status är done
    const rowAfter = getRowByTitle(page, title);
    await expect(rowAfter.locator('select[name="status"]')).toHaveValue("done");
  });

  test("user can change status multiple times", async ({ page }) => {
    await page.goto("/dashboard");

    const row = getRowByTitle(page, title);
    await expect(row).toBeVisible();

    const statusSelect = row.locator('select[name="status"]');

    // not-started -> in-progress
    await Promise.all([
      page.waitForLoadState("networkidle"),
      statusSelect.selectOption("in-progress"),
    ]);
    await expect(getRowByTitle(page, title).locator('select[name="status"]')).toHaveValue(
      "in-progress"
    );

    // in-progress -> done
    await Promise.all([
      page.waitForLoadState("networkidle"),
      statusSelect.selectOption("done"),
    ]);
    await expect(getRowByTitle(page, title).locator('select[name="status"]')).toHaveValue("done");
  });

  test("cannot create todo without required fields", async ({ page }) => {
    await page.goto("/dashboard");

    const createForm = getCreateForm(page);

    // Tomma fält (bara mellanslag)
    await createForm.locator('input[name="title"]').fill(" ");
    await createForm.locator('textarea[name="description"]').fill(" ");
    await createForm.locator('button[type="submit"]').click();

    // Felmeddelande visas
    await expect(page.getByText("Title och description krävs.")).toBeVisible();
  });

  test("cannot create todo when description is missing", async ({ page }) => {
    const badTitle = `E2E Missing Desc ${Date.now()}`;
    await page.goto("/dashboard");

    const createForm = getCreateForm(page);

    await createForm.locator('input[name="title"]').fill(badTitle);
    await createForm.locator('textarea[name="description"]').fill(" ");
    await createForm.locator('button[type="submit"]').click();

    // Felmeddelande + ingen rad skapas
    await expect(page.getByText("Title och description krävs.")).toBeVisible();
    await expect(page.locator(".fw-semibold", { hasText: badTitle })).toHaveCount(0);
  });

  test("invalid status is normalized to not-started on create", async ({ page }) => {
    const t = `E2E Weird Status ${Date.now()}`;
    await page.goto("/dashboard");

    const createForm = getCreateForm(page);

    await createForm.locator('input[name="title"]').fill(t);
    await createForm.locator('textarea[name="description"]').fill("desc");

    // Sätt ett ogiltigt status-värde
    await createForm.locator('select[name="status"]').evaluate((sel: HTMLSelectElement) => {
      sel.value = "hax-status";
    });

    await createForm.locator('button[type="submit"]').click();

    // Ska defaulta till not-started
    const row = getRowByTitle(page, t);
    await expect(row).toBeVisible();
    await expect(row.locator('select[name="status"]')).toHaveValue("not-started");

    // Städa
    await row.locator('button[title="Delete"]').click();
    await expect(page.locator(".fw-semibold", { hasText: t })).toHaveCount(0);
  });

  test("user can delete todo", async ({ page }) => {
    await page.goto("/dashboard");

    const row = getRowByTitle(page, title);
    await expect(row).toBeVisible();

    // Ta bort
    await row.locator('button[title="Delete"]').click();

    // Ska vara borta
    await expect(page.locator(".fw-semibold", { hasText: title })).toHaveCount(0);
  });
});