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

async function openUsers(page: Page) {
  await page.goto('/admin-vue/')
  await expect(page.locator('h2')).toHaveText('用户管理')
}

test('test_task_018_shell_accessibility_normal_primary_path', async ({ page }) => {
  await openUsers(page)
  await expect(page.getByRole('navigation', { name: '侧边栏菜单' })).toBeVisible()
})

test('test_task_018_shell_accessibility_normal_variant_input', async ({ page }) => {
  await openUsers(page)
  const toggle = page.locator('.sidebar-collapse')
  await expect(toggle).toHaveAttribute('aria-label', '切换侧边栏')
  await expect(toggle).toHaveAttribute('aria-expanded', 'true')
  await expect(toggle).toHaveAttribute('type', 'button')
})

test('test_task_018_shell_accessibility_normal_repeated_operation_is_idempotent', async ({ page }) => {
  await openUsers(page)
  const toggle = page.locator('.sidebar-collapse')
  await toggle.click()
  await expect(toggle).toHaveAttribute('aria-expanded', 'false')
  await toggle.click()
  await expect(toggle).toHaveAttribute('aria-expanded', 'true')
})

test('test_task_018_shell_accessibility_boundary_empty_input', async ({ page }) => {
  await openUsers(page)
  await expect(page.locator('.skip-link')).toHaveAttribute('href', '#admin-content')
  await expect(page.locator('#admin-content')).toHaveCount(1)
})

test('test_task_018_shell_accessibility_boundary_single_item', async ({ page }) => {
  await openUsers(page)
  // 键盘可聚焦并可回车触发折叠切换。
  await page.locator('.sidebar-collapse').focus()
  await expect(page.locator('.sidebar-collapse')).toBeFocused()
  await page.keyboard.press('Enter')
  await expect(page.locator('.admin-shell')).toHaveClass(/is-collapsed/)
})

test('test_task_018_shell_accessibility_boundary_limit_or_missing_field', async ({ page }) => {
  await openUsers(page)
  await expect(page.locator('main#admin-content')).toBeVisible()
  await expect(page.getByRole('main')).toHaveCount(1)
})

test('test_task_018_shell_accessibility_invalid_input_rejected', async ({ page }) => {
  await openUsers(page)
  // 折叠后品牌文案不应留在可感知/可聚焦树中。
  await page.locator('.sidebar-collapse').click()
  await expect(page.locator('.admin-brand-copy')).toHaveCount(0)
})

test('test_task_018_shell_accessibility_dependency_failure_returns_actionable_message', async ({ page }) => {
  await openUsers(page)
  // 标题层级：顶栏 h1(页面标题) + 页面 h2；键盘焦点样式已定义。
  await expect(page.locator('.admin-topbar h1')).toHaveText('用户管理')
  await expect(page.locator('main h2')).toHaveText('用户管理')
  const hasFocusStyle = await page.evaluate(() => {
    const rules: string[] = []
    for (const sheet of document.styleSheets) {
      try {
        for (const rule of sheet.cssRules) {
          if (rule.cssText.includes(':focus-visible')) rules.push(rule.cssText)
        }
      } catch {
        // 跨域样式表忽略
      }
    }
    return rules.some((t) => t.includes('sidebar-collapse'))
  })
  expect(hasFocusStyle).toBe(true)
})