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())
})

const collectMetrics = async () => page.evaluate(() => {
  const statusbar = document.querySelector('.statusbar')
  const statusName = document.querySelector('.status-name')
  const statusOnlineDot = document.querySelector('.status-online-dot')
  const search = document.querySelector('.global-search')
  const main = document.querySelector('.workbench-main')
  const workspacePage = document.querySelector('.workspace-page')
  const projectOverview = document.querySelector('.overview-page:not(.workspace-page)')
  const rail = document.querySelector('.project-rail')
  const railChildren = rail?.querySelector('.arco-layout-sider-children')
  const sidebar = document.querySelector('.channel-sidebar')
  const stage = document.querySelector('.stage')
  const inspector = document.querySelector('.inspector')
  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,
    statusName: rect(statusName),
    statusOnlineDot: rect(statusOnlineDot),
    searchHeight: search?.getBoundingClientRect().height,
    workbenchMain: rect(main),
    hasWorkspacePage: Boolean(workspacePage),
    hasProjectOverview: Boolean(projectOverview),
    projectRailWidth: rail?.getBoundingClientRect().width,
    projectRail: rect(rail),
    channelSidebar: rect(sidebar),
    stage: rect(stage),
    inspector: rect(inspector),
    dashboardButton: rect(dashboard),
    dashboardButtonActive: dashboard?.classList.contains('active') ?? false,
    projectButton: rect(project),
    projectButtonActive: project?.classList.contains('active') ?? false,
    createProjectButton: rect(create),
    firstProjectBadge: rect(firstBadge),
    horizontalInsets,
    verticalGaps,
    projectRailOverflow: overflowState(rail),
    projectRailChildrenOverflow: overflowState(railChildren),
    overflowX: document.documentElement.scrollWidth > document.documentElement.clientWidth,
    viewportWidth: window.innerWidth,
  }
})

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 })
const workspaceMetrics = await collectMetrics()

await page.locator('.project-button').first().click()
await page.waitForTimeout(500)
await page.screenshot({ path: 'test-results/project-react-acro-light.png', fullPage: true })
const projectMetrics = await collectMetrics()

await page.locator('.topbar-actions .arco-btn').first().click()
await page.screenshot({ path: 'test-results/project-react-acro-dark.png', fullPage: true })

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

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

const failures = []
const metrics = workspaceMetrics
if (errors.length) failures.push(`console errors: ${errors.join('; ')}`)
if (metrics.statusbarHeight !== 32) failures.push(`expected statusbar height 32, got ${metrics.statusbarHeight}`)
if (!metrics.statusOnlineDot) failures.push('expected online status to render as an icon dot')
if (metrics.statusName && metrics.statusOnlineDot && Math.abs(metrics.statusName.top - metrics.statusOnlineDot.top) > 6) {
  failures.push(`expected online dot to sit beside username, got name=${JSON.stringify(metrics.statusName)}, dot=${JSON.stringify(metrics.statusOnlineDot)}`)
}
if (metrics.searchHeight !== 42) failures.push(`expected search height 42, got ${metrics.searchHeight}`)
if (metrics.overflowX) failures.push('expected no horizontal overflow')
if (!metrics.workbenchMain) failures.push('missing workbench main')
if (!metrics.hasWorkspacePage) failures.push('expected login to land on workspace page')
if (!metrics.dashboardButtonActive) failures.push('expected dashboard button to be active after login')
if (metrics.projectButtonActive) failures.push('expected first project button not to be active on workspace landing page')
if (metrics.channelSidebar) failures.push(`expected workspace to hide channel sidebar, got ${JSON.stringify(metrics.channelSidebar)}`)
if (metrics.inspector) failures.push(`expected workspace to hide inspector, got ${JSON.stringify(metrics.inspector)}`)
if (!metrics.projectRail || !metrics.stage) {
  failures.push(`missing workspace layout regions: rail=${JSON.stringify(metrics.projectRail)}, stage=${JSON.stringify(metrics.stage)}`)
} else {
  if (Math.abs(metrics.stage.left - metrics.projectRail.right) > 1) {
    failures.push(`expected workspace stage to start after project rail, got stage.left=${metrics.stage.left}, rail.right=${metrics.projectRail.right}`)
  }
  if (Math.abs(metrics.stage.right - metrics.viewportWidth) > 1) {
    failures.push(`expected workspace stage to end at viewport right edge, got stage.right=${metrics.stage.right}, viewport=${metrics.viewportWidth}`)
  }
}
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 (!projectMetrics.hasProjectOverview) failures.push('expected first project click to show project overview page')
if (projectMetrics.hasWorkspacePage) failures.push('expected project overview mode to leave workspace page')
if (!projectMetrics.projectButtonActive) failures.push('expected first project button to be active in project mode')
if (projectMetrics.dashboardButtonActive) failures.push('expected dashboard button not to be active in project mode')
if (!projectMetrics.projectRail || !projectMetrics.channelSidebar || !projectMetrics.stage || !projectMetrics.inspector) {
  failures.push(
    `missing project layout regions: rail=${JSON.stringify(projectMetrics.projectRail)}, sidebar=${JSON.stringify(projectMetrics.channelSidebar)}, stage=${JSON.stringify(projectMetrics.stage)}, inspector=${JSON.stringify(projectMetrics.inspector)}`,
  )
} else {
  const sameTop = [projectMetrics.projectRail, projectMetrics.channelSidebar, projectMetrics.stage, projectMetrics.inspector]
    .every((region) => Math.abs(region.top - projectMetrics.projectRail.top) <= 1)
  if (!sameTop) {
    failures.push(
      `expected project rail, channel sidebar, stage, and inspector to share the same top edge, got rail=${projectMetrics.projectRail.top}, sidebar=${projectMetrics.channelSidebar.top}, stage=${projectMetrics.stage.top}, inspector=${projectMetrics.inspector.top}`,
    )
  }
  if (Math.abs(projectMetrics.channelSidebar.left - projectMetrics.projectRail.right) > 1) {
    failures.push(`expected channel sidebar to sit after project rail, got sidebar.left=${projectMetrics.channelSidebar.left}, rail.right=${projectMetrics.projectRail.right}`)
  }
  if (Math.abs(projectMetrics.stage.left - projectMetrics.channelSidebar.right) > 1) {
    failures.push(`expected stage to sit after channel sidebar, got stage.left=${projectMetrics.stage.left}, sidebar.right=${projectMetrics.channelSidebar.right}`)
  }
  if (Math.abs(projectMetrics.inspector.left - projectMetrics.stage.right) > 1) {
    failures.push(`expected inspector to sit after stage, got inspector.left=${projectMetrics.inspector.left}, stage.right=${projectMetrics.stage.right}`)
  }
  if (Math.abs(projectMetrics.inspector.right - projectMetrics.viewportWidth) > 1) {
    failures.push(`expected inspector to end at viewport right edge, got inspector.right=${projectMetrics.inspector.right}, viewport=${projectMetrics.viewportWidth}`)
  }
}

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