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

test.describe("YouTube Web App E2E Tests", () => {
  test.beforeEach(async ({ page }) => {
    // Go to home page for tests that need it
    await page.goto("http://localhost:5173");
  });

  test("should visit the home page", async ({ page }) => {
    await expect(page).toHaveTitle(/YouTube/);
    const searchInput = page.locator(
      'input[placeholder="Enter YouTube URL or search query..."]',
    );
    await expect(searchInput).toBeVisible();
  });

  test("should search for a video", async ({ page }) => {
    const searchInput = page.locator(
      'input[placeholder="Enter YouTube URL or search query..."]',
    );
    await searchInput.fill("test video");
    await page.keyboard.press("Enter");
    await page.waitForTimeout(2000);
    const searchForm = page.locator(
      'form:has(input[placeholder="Enter YouTube URL or search query..."])',
    );
    await expect(searchForm).toBeVisible();
  });

  test("should display search results", async ({ page }) => {
    const searchInput = page.locator(
      'input[placeholder="Enter YouTube URL or search query..."]',
    );
    await searchInput.fill("test");
    await page.keyboard.press("Enter");

    // Wait for search button to be disabled (search in progress)
    await page.waitForSelector('button[disabled]:has-text("Searching...")', {
      timeout: 10000,
    });

    // Wait for search to complete (button reappears enabled)
    await page.waitForSelector('button:has-text("Search")', {
      timeout: 30000,
    });

    // Wait for search results to appear
    await page.waitForSelector("h2:has-text('Search Results')", {
      state: "visible",
      timeout: 10000,
    });
    await expect(page.locator("h2:has-text('Search Results')")).toBeVisible();
  });

  test("should navigate to queue page", async ({ page }) => {
    // Mock queue API call
    await page.route("**/api/queue", (route) => {
      route.fulfill({
        status: 200,
        contentType: "application/json",
        body: JSON.stringify({ queue: [], total: 0 }),
      });
    });
    await page.goto("http://localhost:5173/queue");
    await expect(page).toHaveURL("http://localhost:5173/queue");
    await expect(page.locator("text=Download Queue")).toBeVisible();
  });

  test("should navigate to archive page", async ({ page }) => {
    // Go to archive page - the API is mocked by the running Flask server
    await page.goto("http://localhost:5173/archive");
    await expect(page).toHaveURL("http://localhost:5173/archive");

    // Wait for the main container to appear
    await page.waitForSelector(".max-w-7xl", { timeout: 15000 });

    // Verify the page has the archive heading
    await expect(page.locator("h1:has-text('Video Archive')")).toBeVisible({
      timeout: 10000,
    });
  });

  test("should click on a search result card and display video information", async ({
    page,
  }) => {
    // Search for "test video"
    const searchInput = page.locator(
      'input[placeholder="Enter YouTube URL or search query..."]',
    );
    await searchInput.fill("test video");
    await page.keyboard.press("Enter");

    // Wait for search button to be disabled (search in progress)
    await page.waitForSelector('button[disabled]:has-text("Searching...")', {
      timeout: 10000,
    });

    // Wait for search to complete (button reappears enabled)
    await page.waitForSelector('button:has-text("Search")', {
      timeout: 30000,
    });

    // Wait for search results to appear
    await page.waitForSelector("h2:has-text('Search Results')", {
      state: "visible",
      timeout: 10000,
    });

    // Wait for search result cards to appear
    await page.waitForSelector(".bg-slate-800.rounded-xl", {
      timeout: 10000,
    });

    // Get the first search result card and click it
    // Use a more specific selector that targets search result cards by their structure
    // Cards contain thumbnail (aspect-video), title, channel, and views
    await page.waitForSelector(".aspect-video img", { timeout: 10000 });

    // Count only the result cards (not other elements with similar classes)
    const resultCards = page.locator(".grid.grid-cols-1 .bg-slate-800");
    const cardCount = await resultCards.count();

    if (cardCount > 0) {
      await resultCards.first().click();

      // Wait for navigation to complete by checking URL change
      await page.waitForFunction(
        () => {
          const url = window.location.href;
          return url.includes("/results");
        },
        { timeout: 10000 },
      );

      // Wait for video information to be displayed
      await page.waitForSelector("h1.text-2xl", { timeout: 10000 });

      // Verify video information elements are visible
      await expect(page.locator("h1.text-2xl")).toBeVisible({
        timeout: 10000,
      });
      await expect(page.locator("text=Channel")).toBeVisible({
        timeout: 10000,
      });
      await expect(page.locator("text=Download Options")).toBeVisible({
        timeout: 10000,
      });
    } else {
      console.log("No search results found - test skipped clicking");
    }
  });
});