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

// 壳层可访问性对齐现状（task-276 已移除侧边栏收起按钮/is-collapsed 机制）：
// 断言主题改为「跳转链接、地标唯一性、标题层级、键盘可达」。

async function openUsers(page: Page) {
  await page.goto('/admin-vue/')
  await expect(page.locator('.admin-topbar h1')).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 skip = page.locator('.skip-link')
  await expect(skip).toBeVisible()
  await expect(skip).toHaveAttribute('href', '#admin-content')
})

test('test_task_018_shell_accessibility_normal_repeated_operation_is_idempotent', async ({ page }) => {
  await openUsers(page)
  await page.reload()
  await expect(page.locator('.admin-topbar h1')).toHaveText('用户管理')
  await expect(page.getByRole('navigation', { name: '侧边栏菜单' })).toBeVisible()
})

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)
  // 键盘可达：Tab 到跳转链接，回车跳到主内容（hash 定位）。
  await page.locator('.skip-link').focus()
  await expect(page.locator('.skip-link')).toBeFocused()
  await page.keyboard.press('Enter')
  await expect(page).toHaveURL(/#admin-content/)
  await expect(page.locator('#admin-content')).toBeVisible()
})

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)
  // 导航后无可见错误遮罩/弹层残留。
  await expect(page.locator('.el-overlay:visible')).toHaveCount(0)
  await expect(page.locator('.el-alert--error')).toHaveCount(0)
})

test('test_task_018_shell_accessibility_dependency_failure_returns_actionable_message', async ({ page }) => {
  await openUsers(page)
  // 标题层级：顶栏唯一 h1(页面标题)；页面面板标题用 h3 递进。
  await expect(page.locator('.admin-topbar h1')).toHaveText('用户管理')
  await expect(page.locator('h1')).toHaveCount(1)
  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.length > 0
  })
  expect(hasFocusStyle).toBe(true)
})