import { createServer } from 'vite'
import { chromium } from 'playwright'

const port = Number(process.env.VISUAL_CHECK_PORT ?? 4175)

const server = await createServer({
  root: process.cwd(),
  server: {
    host: '127.0.0.1',
    port,
    strictPort: true,
  },
})

await server.listen()

const browser = await chromium.launch({ headless: true })
const page = await browser.newPage({ viewport: { width: 1440, height: 1024 }, deviceScaleFactor: 1 })
const errors = []
page.on('console', (message) => {
  if (message.type() === 'error') errors.push(message.text())
})

await page.goto(`http://127.0.0.1:${port}/`, { waitUntil: 'networkidle' })
await page.screenshot({ path: 'test-results/login-react-acro.png', fullPage: true })
await page.locator('.login-form-panel .arco-btn-primary').click()
await page.waitForSelector('.workbench-shell')
await page.waitForTimeout(700)
await page.screenshot({ path: 'test-results/workbench-react-acro-light.png', fullPage: true })
await page.locator('.topbar-actions .arco-btn').first().click()
await page.screenshot({ path: 'test-results/workbench-react-acro-dark.png', fullPage: true })

const metrics = await page.evaluate(() => {
  const statusbar = document.querySelector('.statusbar')
  const search = document.querySelector('.global-search')
  const rail = document.querySelector('.project-rail')
  const railChildren = rail?.querySelector('.arco-layout-sider-children')
  const dashboard = document.querySelector('.dashboard-button')
  const project = document.querySelector('.project-button')
  const create = document.querySelector('.create-project')
  const firstBadge = document.querySelector('.project-badge .arco-badge-number')
  const railItems = [...document.querySelectorAll('.dashboard-button, .project-button, .create-project')]
  const rect = (node) => {
    const box = node?.getBoundingClientRect()
    return box ? { left: box.left, right: box.right, top: box.top, width: box.width, height: box.height } : null
  }
  const railBox = rail?.getBoundingClientRect()
  const itemRects = railItems.map(rect).filter(Boolean)
  const horizontalInsets = railBox && project
    ? {
        left: project.getBoundingClientRect().left - railBox.left,
        right: railBox.right - project.getBoundingClientRect().right,
      }
    : null
  const verticalGaps = itemRects.slice(1).map((item, index) => item.top - (itemRects[index].top + itemRects[index].height))
  const overflowState = (node) => node
    ? {
        clientWidth: node.clientWidth,
        scrollWidth: node.scrollWidth,
        clientHeight: node.clientHeight,
        scrollHeight: node.scrollHeight,
        overflowX: getComputedStyle(node).overflowX,
        overflowY: getComputedStyle(node).overflowY,
      }
    : null

  return {
    statusbarHeight: statusbar?.getBoundingClientRect().height,
    searchHeight: search?.getBoundingClientRect().height,
    projectRailWidth: rail?.getBoundingClientRect().width,
    dashboardButton: rect(dashboard),
    projectButton: rect(project),
    createProjectButton: rect(create),
    firstProjectBadge: rect(firstBadge),
    horizontalInsets,
    verticalGaps,
    projectRailOverflow: overflowState(rail),
    projectRailChildrenOverflow: overflowState(railChildren),
    overflowX: document.documentElement.scrollWidth > document.documentElement.clientWidth,
  }
})

await browser.close()
await server.close()

console.log(JSON.stringify({ metrics, errors }, null, 2))

const failures = []
if (errors.length) failures.push(`console errors: ${errors.join('; ')}`)
if (metrics.statusbarHeight !== 32) failures.push(`expected statusbar height 32, got ${metrics.statusbarHeight}`)
if (metrics.searchHeight !== 42) failures.push(`expected search height 42, got ${metrics.searchHeight}`)
if (metrics.overflowX) failures.push('expected no horizontal overflow')
if (!metrics.projectRailWidth || metrics.projectRailWidth < 88) {
  failures.push(`expected project rail at least 88px wide, got ${metrics.projectRailWidth}`)
}
if (!metrics.projectButton) failures.push('missing project button')
if (!metrics.horizontalInsets || Math.abs(metrics.horizontalInsets.left - metrics.horizontalInsets.right) > 1) {
  failures.push(`expected equal rail horizontal insets, got ${JSON.stringify(metrics.horizontalInsets)}`)
}
if (metrics.verticalGaps.some((gap) => gap !== 12)) {
  failures.push(`expected all project rail vertical gaps to be 12px, got ${JSON.stringify(metrics.verticalGaps)}`)
}
for (const [name, overflow] of [
  ['project rail', metrics.projectRailOverflow],
  ['project rail children', metrics.projectRailChildrenOverflow],
]) {
  if (
    !overflow ||
    overflow.overflowX !== 'hidden' ||
    overflow.overflowY !== 'hidden'
  ) {
    failures.push(`expected ${name} scrollbars to be hidden with no overflow, got ${JSON.stringify(overflow)}`)
  }
}
if (
  !metrics.firstProjectBadge ||
  metrics.firstProjectBadge.right > metrics.projectRailWidth ||
  metrics.firstProjectBadge.left < 0
) {
  failures.push(`expected first project badge to stay inside the project rail, got ${JSON.stringify(metrics.firstProjectBadge)}`)
}
if (
  !metrics.dashboardButton ||
  metrics.dashboardButton.width !== metrics.projectButton?.width ||
  metrics.dashboardButton.height !== metrics.projectButton?.height
) {
  failures.push(
    `dashboard button size ${JSON.stringify(metrics.dashboardButton)} does not match project button ${JSON.stringify(metrics.projectButton)}`,
  )
}
if (
  !metrics.createProjectButton ||
  metrics.createProjectButton.width !== metrics.projectButton?.width ||
  metrics.createProjectButton.height !== metrics.projectButton?.height
) {
  failures.push(
    `create project button size ${JSON.stringify(metrics.createProjectButton)} does not match project button ${JSON.stringify(metrics.projectButton)}`,
  )
}

if (failures.length) {
  throw new Error(failures.join('\n'))
}