import type { Page } from '@playwright/test';
import { closeElectronApp, expect, getStableWindow, test } from './fixtures/electron';

async function openSettingsFromSidebarAccountMenu(page: Page): Promise<void> {
  await page.getByTestId('sidebar-member-menu-trigger').click();
  await page.getByTestId('sidebar-nav-settings').click();
}

async function expectSidebarSettingsLabel(page: Page, label: string): Promise<void> {
  await page.getByTestId('sidebar-member-menu-trigger').click();
  await expect(page.getByTestId('sidebar-nav-settings')).toContainText(label);
  await page.keyboard.press('Escape');
}

test.describe('Russian language localization', () => {
  test('shows Russian language option in setup wizard', async ({ launchElectronApp }) => {
    const app = await launchElectronApp();

    try {
      const page = await getStableWindow(app);

      // Should see the setup wizard
      await expect(page.getByTestId('setup-page')).toBeVisible();

      // Should have Russian language button visible
      const russianButton = page.locator('button', { hasText: 'Русский' });
      await expect(russianButton).toBeVisible();
    } finally {
      await closeElectronApp(app);
    }
  });

  test('can switch to Russian language in setup wizard', async ({ launchElectronApp }) => {
    const app = await launchElectronApp();

    try {
      const page = await getStableWindow(app);

      await expect(page.getByTestId('setup-page')).toBeVisible();

      // Click Russian language button
      const russianButton = page.locator('button', { hasText: 'Русский' });
      await russianButton.click();

      // Verify UI renders in Russian by checking for Russian-only text
      // "Добро пожаловать" is unique to Russian and won't appear in English
      await expect(page.locator('h2')).toContainText('Добро пожаловать');
    } finally {
      await closeElectronApp(app);
    }
  });

  test('Russian language persists after skipping setup', async ({ launchElectronApp }) => {
    const app = await launchElectronApp();
    let relaunchedApp: Awaited<ReturnType<typeof launchElectronApp>> | null = null;
    let firstAppClosed = false;

    try {
      const page = await getStableWindow(app);

      await expect(page.getByTestId('setup-page')).toBeVisible();

      // Switch to Russian
      const russianButton = page.locator('button', { hasText: 'Русский' });
      await russianButton.click();

      // Skip setup
      await page.getByTestId('setup-skip-button').click();
      await expect(page.getByRole('button', { name: 'Continue in browser' })).toBeVisible();

      await closeElectronApp(app);
      firstAppClosed = true;

      relaunchedApp = await launchElectronApp({ skipSetup: true });
      const relaunchedPage = await getStableWindow(relaunchedApp);
      await expect(relaunchedPage.getByTestId('main-layout')).toBeVisible();

      // Bypass authentication only for the relaunch so the persisted setting
      // can be verified without weakening the production login gate.
      await openSettingsFromSidebarAccountMenu(relaunchedPage);
      await expect(relaunchedPage).toHaveURL(/\/settings$/);
      await expect(relaunchedPage.getByRole('heading', { name: 'Настройки', exact: true })).toBeVisible();

      // Verify sidebar shows Russian text (not English)
      // "Настройки" is Russian-only, English is "Settings"
      await expectSidebarSettingsLabel(relaunchedPage, 'Настройки');
    } finally {
      if (relaunchedApp) await closeElectronApp(relaunchedApp);
      if (!firstAppClosed) await closeElectronApp(app);
    }
  });

  test('can switch to Russian in Settings page', async ({ launchElectronApp }) => {
    const app = await launchElectronApp({ skipSetup: true });

    try {
      const page = await getStableWindow(app);

      await expect(page.getByTestId('main-layout')).toBeVisible();

      // Navigate to Settings (in English by default after skipSetup)
      await openSettingsFromSidebarAccountMenu(page);
      await expect(page).toHaveURL(/\/settings$/);

      // Select Russian from the current settings control.
      await page.locator('#language').selectOption('ru');
      await expect(page.getByRole('heading', { name: 'Настройки', exact: true })).toBeVisible();

      // Verify sidebar switched to Russian
      // "Настройки" is Russian-only, English is "Settings"
      await expectSidebarSettingsLabel(page, 'Настройки');
    } finally {
      await closeElectronApp(app);
    }
  });
});