// messaging.spec.ts
import { expect, test } from '@playwright/test';
import type { Response, Page, BrowserContext } from '@playwright/test';
import { acceptTermsIfPresent } from '../utils/acceptTermsIfPresent';

const basePath = 'http://localhost:3080/c/';
const initialUrl = `${basePath}new`;
function isUUID(uuid: string) {
  const regex = /^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/;
  return regex.test(uuid);
}
const initialNewChatSelector = '[data-testid="nav-new-chat-button"]';

const endpoint = 'openAI'; // adjust as needed
const waitForServerStream = async (response: Response) => {
  const endpointCheck =
    response.url().includes(`/api/ask/${endpoint}`) ||
    response.url().includes(`/api/edit/${endpoint}`);
  return endpointCheck && response.status() === 200;
};

/**
 * Clears conversations by:
 *  1. Navigating to the initial URL and accepting the Terms modal (if needed).
 *  2. Clicking the nav-user button to open the popover.
 *  3. Waiting for and clicking the "Settings" option.
 *  4. In the Settings dialog, selecting the "Data controls" tab.
 *  5. Locating the container with the "Clear all chats" label and clicking its Delete button.
 *  6. Waiting for the confirmation dialog (with accessible name "Confirm Clear") to appear,
 *     and then clicking its Delete button.
 *  7. Finally, closing the settings dialog.
 */
async function clearConvos(page: Page) {
  // Navigate to the initial URL.
  await page.goto(initialUrl, { timeout: 5000 });

  // Accept the Terms modal if it appears.
  await acceptTermsIfPresent(page);

  // Open the nav-user popover.
  await page.getByTestId('nav-user').click();
  // Wait for the popover container to appear.
  await page.waitForSelector('[data-dialog][role="listbox"]', { state: 'visible', timeout: 5000 });

  // Wait for the "Settings" option to be visible and click it.
  const settingsOption = page.getByText('Settings');
  await settingsOption.waitFor({ state: 'visible', timeout: 5000 });
  await settingsOption.click();

  // In the Settings dialog, click on the "Data controls" tab.
  const dataControlsTab = page.getByRole('tab', { name: 'Data controls' });
  await dataControlsTab.waitFor({ state: 'visible', timeout: 5000 });
  await dataControlsTab.click();

  // Locate the "Clear all chats" label.
  const clearChatsLabel = page.getByText('Clear all chats');
  await clearChatsLabel.waitFor({ state: 'visible', timeout: 5000 });

  // Get the parent container of the label.
  const parentContainer = clearChatsLabel.locator('xpath=..');

  // Locate the Delete button within that container.
  const deleteButtonInContainer = parentContainer.locator('button', { hasText: 'Delete' });
  await deleteButtonInContainer.waitFor({ state: 'visible', timeout: 5000 });
  await deleteButtonInContainer.click();

  // Wait for the confirmation dialog with the accessible name "Confirm Clear" to appear.
  const confirmDialog = page.getByRole('dialog', { name: 'Confirm Clear' });
  await confirmDialog.waitFor({ state: 'visible', timeout: 5000 });

  // In the confirmation dialog, click the Delete button.
  const confirmDeleteButton = page.getByRole('button', { name: 'Delete' });
  await confirmDeleteButton.waitFor({ state: 'visible', timeout: 5000 });
  await confirmDeleteButton.click();

  // Close the settings dialog.
  await page.getByRole('button', { name: 'Close', exact: true }).click();
}

let beforeAfterAllContext: BrowserContext;
test.beforeAll(async ({ browser }) => {
  console.log('Clearing conversations before message tests.');
  beforeAfterAllContext = await browser.newContext();
  const page = await beforeAfterAllContext.newPage();
  await clearConvos(page);
  await page.close();
});

// TODO needs to be updated to the new layout
test.describe('Messaging suite', () => {
  test('textbox should be focused after generation, test expected navigation, & test editing messages', async ({ page }) => {
    test.setTimeout(120000);
    const message = 'hi';

    // Navigate to the page.
    await page.goto(initialUrl, { timeout: 5000 });
    // Accept the Terms modal if needed.
    await acceptTermsIfPresent(page);

    // Click the "New chat" button.
    await page.locator(initialNewChatSelector).click();

    // Assume endpoint selection is done automatically.
    const input = await page.locator('form').getByRole('textbox');
    await input.click();
    await input.fill(message);

    // Press Enter to send the message and wait for the API response.
    const [response] = (await Promise.all([
      page.waitForResponse(waitForServerStream),
      input.press('Enter'),
    ])) as [Response];
    const responseBody = await response.body();
    expect(responseBody.toString()).toContain('"final":true');

    // Check that the input remains focused.
    await page.waitForTimeout(250);
    const isTextboxFocused = await page.evaluate(() =>
      document.activeElement === document.querySelector('[data-testid="text-input"]')
    );
    expect(isTextboxFocused).toBeTruthy();

    // Click the "New chat" button to clear the conversation.
    await page.locator(initialNewChatSelector).click();
    expect(page.url()).toBe(initialUrl);

    // Open the first conversation by clicking its icon.
    // TODO needs to be chnages to otherside.
    await page.locator('[data-testid="convo-icon"]').first().click({ timeout: 5000 });
    const finalUrl = page.url();
    const conversationId = finalUrl.split(basePath).pop() ?? '';
    expect(isUUID(conversationId)).toBeTruthy();

    // Simulate editing the conversation title.
    const convoMenuButton = await page.getByRole('button', { name: /Conversation Menu Options/i });
    await convoMenuButton.click();
    const renameOption = await page.getByRole('menuitem', { name: 'Rename' });
    await renameOption.click();
    // Assume a text editor appears.
    const textEditor = page.locator('[data-testid="message-text-editor"]');
    await textEditor.click();
    const editText = 'All work and no play makes Johnny a poor boy';
    await textEditor.fill(editText);
    // Click the Save button.
    await page.getByRole('button', { name: 'Save', exact: true }).click();

    // Verify that the new title appears in the conversation list.
    const updatedTitle = await page.getByText(editText).first().textContent();
    expect(updatedTitle).toContain(editText);
  });

  // TODO needs to be updated to the new layout
  test('message should stop and continue', async ({ page }) => {
    const message = 'write me a 10 stanza poem about space';
    await page.goto(initialUrl, { timeout: 5000 });
    await acceptTermsIfPresent(page);
    await page.locator(initialNewChatSelector).click();

    // Assume the endpoint is selected automatically.
    const input = await page.locator('form').getByRole('textbox');
    await input.click();
    await input.fill(message);
    await Promise.all([
      page.waitForResponse(waitForServerStream),
      input.press('Enter'),
    ]);

    // Wait briefly then simulate stopping the generation.
    await page.waitForTimeout(250);
    await page.getByRole('button', { name: 'Stop' }).click();

    // Then continue generation.
    await Promise.all([
      page.waitForResponse(waitForServerStream),
      page.getByTestId('continue-generation-button').click(),
    ]);
    // Check that a "Regenerate" button appears.
    const regenerateButton = await page.getByRole('button', { name: 'Regenerate' });
    expect(await regenerateButton.count()).toBeGreaterThan(0);

    // Clear the conversation if needed.
    await page.locator('[data-testid="convo-item"]')
      .getByRole('button')
      .nth(1)
      .click();
  });

  // TODO needs to be updated to the new layout
  test('Page navigations', async ({ page }) => {
    await page.goto(initialUrl, { timeout: 5000 });
    await acceptTermsIfPresent(page);
    await page.locator('[data-testid="convo-icon"]').first().click({ timeout: 5000 });
    const currentUrl = page.url();
    const conversationId = currentUrl.split(basePath).pop() ?? '';
    expect(isUUID(conversationId)).toBeTruthy();
    await page.locator(initialNewChatSelector).click();
    expect(page.url()).toBe(initialUrl);
  });
});