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

function bottomTab(page: Page, name: string) {
  return page.getByRole('navigation', { name: '主要导航' }).getByRole('button', { name, exact: true })
}

async function openTaskComposer(page: Page) {
  await page.getByRole('button', { name: '添加任务' }).click()
  return page.getByRole('dialog', { name: /添加(?:今天)?任务/ })
}

test('settings are continuous, fit viewport, and controls are touch sized', async ({ page }) => {
  await page.goto('/')
  await bottomTab(page, '设置').click()
  await expect(bottomTab(page, '设置')).toHaveAttribute('aria-current', 'page')
  const groups = page.locator('.settings-group')
  await expect(groups).toHaveCount(5)
  const layout = await page.locator('.settings-sections').evaluate(element => {
    const groups = [...element.querySelectorAll<HTMLElement>(':scope > .settings-group')]
    return {
      bodyOverflow: document.documentElement.scrollWidth - document.documentElement.clientWidth,
      gaps: groups.slice(1).map((group, index) => group.getBoundingClientRect().top - groups[index].getBoundingClientRect().bottom),
    }
  })
  expect(layout.bodyOverflow).toBe(0)
  expect(layout.gaps.every(gap => gap >= 0 && gap <= 20)).toBeTruthy()
  const sessionButtons = page.getByRole('button', { name: /撤销会话|撤销其他会话/ })
  for (const target of await page.locator('.settings-row button, .settings-row .file-button, .settings-row select').all()) {
    const box = await target.boundingBox()
    expect(box).not.toBeNull()
    expect(box!.width).toBeGreaterThanOrEqual(44)
    expect(box!.height).toBeGreaterThanOrEqual(44)
  }
  for (const target of await sessionButtons.all()) {
    const box = await target.boundingBox()
    expect(box).not.toBeNull()
    expect(box!.width).toBeGreaterThanOrEqual(44)
    expect(box!.height).toBeGreaterThanOrEqual(44)
  }
})

test('task, habit, countdown, memo, action and confirmation overlays share the modal contract', async ({ page }, testInfo) => {
  await page.goto('/')
  const assertModal = async (dialog: ReturnType<Page['getByRole']>) => {
    await expect(dialog).toBeVisible()
    await expect(page.locator('#app')).toHaveAttribute('inert', '')
    const metrics = await dialog.evaluate(element => {
      const panel = element as HTMLElement
      const header = panel.querySelector<HTMLElement>('.app-sheet__header, header')
      const footer = panel.querySelector<HTMLElement>('.app-sheet__footer, footer')
      return {
        horizontalOverflow: panel.scrollWidth - panel.clientWidth,
        headerVisible: !header || header.getBoundingClientRect().top >= 0,
        footerVisible: !footer || footer.getBoundingClientRect().bottom <= innerHeight + 1,
      }
    })
    expect(metrics).toEqual({ horizontalOverflow: 0, headerVisible: true, footerVisible: true })
  }

  await openTaskComposer(page)
  await assertModal(page.getByRole('dialog', { name: /添加(?:今天)?任务/ }))
  await page.keyboard.press('Escape')
  await bottomTab(page, '习惯').click()
  await page.getByRole('button', { name: '添加习惯' }).click()
  await assertModal(page.getByRole('dialog', { name: '添加习惯' }))
  await page.keyboard.press('Escape')
  await bottomTab(page, '倒数日').click()
  await page.getByRole('button', { name: '添加倒数日' }).click()
  await assertModal(page.getByRole('dialog', { name: '新建倒数日' }))
  await page.keyboard.press('Escape')

  await page.getByRole('button', { name: /展开菜单|收起菜单/ }).click()
  await page.locator('.sidebar').getByRole('button', { name: '备忘录', exact: true }).click()
  await page.getByRole('button', { name: '添加备忘录' }).click()
  await assertModal(page.getByRole('dialog', { name: '备忘录详情' }))
  await page.getByLabel('备忘录标题').fill(`未保存 ${testInfo.project.name}`)
  await page.getByRole('button', { name: '关闭备忘录' }).click()
  const confirmation = page.getByRole('dialog', { name: '放弃未保存的更改？' })
  await assertModal(confirmation)
  await confirmation.getByRole('button', { name: '取消' }).click()
  await expect(page.getByRole('dialog', { name: '备忘录详情' })).toBeVisible()
  await expect(page.getByLabel('备忘录标题')).toBeFocused()
})

test('AppSheet traps focus, Escape closes, and scrim owns outside hit testing', async ({ page }) => {
  await page.goto('/')
  const opener = page.getByRole('button', { name: '添加任务' })
  await opener.focus()
  const dialog = await openTaskComposer(page)
  await expect(dialog).toBeVisible()
  await expect(page.getByLabel('任务名称')).toBeFocused()
  const background = page.locator('#app')
  await expect(background).toHaveAttribute('aria-hidden', 'true')
  await expect(background).toHaveAttribute('inert', '')
  const geometry = await page.locator('.app-overlay').evaluate(element => {
    const rect = element.getBoundingClientRect()
    const hit = document.elementFromPoint(2, 2)
    return { x: rect.x, y: rect.y, width: rect.width, height: rect.height, hitIsScrim: hit === element }
  })
  expect(geometry).toEqual({ x: 0, y: 0, width: page.viewportSize()!.width, height: page.viewportSize()!.height, hitIsScrim: true })

  const focusable = dialog.locator('button:not([disabled]), input:not([disabled]), select:not([disabled]), textarea:not([disabled]), [href], [tabindex]:not([tabindex="-1"])').filter({ visible: true })
  const first = focusable.first()
  const last = focusable.last()
  await first.focus()
  await page.keyboard.press('Shift+Tab')
  await expect(last).toBeFocused()
  await page.keyboard.press('Tab')
  await expect(first).toBeFocused()
  await page.keyboard.press('Escape')
  await expect(dialog).toBeHidden()
  await expect(opener).toBeFocused()

  await openTaskComposer(page)
  await page.mouse.click(2, 2)
  await expect(page.getByRole('dialog', { name: /添加(?:今天)?任务/ })).toBeHidden()
})