import assert from 'node:assert/strict'
import fs from 'node:fs'
import path from 'node:path'
import { chromium, expect } from '@playwright/test'
import { localCredentials } from './review-api.mjs'

// Real UI navigation with existing fixtures; all business mutations are blocked.
// Only the failure response for "save and leave" is simulated, never sent upstream.
const reportDir = path.resolve('reports/training-return-tabs-20260906')
fs.mkdirSync(path.join(reportDir, 'screenshots'), { recursive: true })
const listPath = '/content/training-projects'
const editPath = id => `${listPath}/${id}/legacy`
const evidence = {
  title: '训练编排返回列表与页面标签聚焦回归', status: 'RUNNING', startedAt: new Date().toISOString(),
  environment: { browser: 'Microsoft Edge / Playwright', role: '真实管理员登录后切换教员', origins: ['http://127.0.0.1:6180', 'http://192.168.31.168:6180'] },
  checks: [], blockedWrites: [], pageErrors: [], projects: [],
  preparationNotes: [],
  scope: ['仅验证顶部返回列表及现有离开确认。打开已有训练 161/162，业务写请求全部由浏览器拦截。', '“保存并离开”的失败由浏览器模拟 HTTP 503；不代表真实服务端故障。没有真实保存、发布、上传或修改这两条项目。', '本轮未测试成功保存或成功发布；其业务路径未被本次代码修改。'],
  commands: [{ command: 'pnpm run build', status: 'PASS', details: '根代理执行，含 vue-tsc、Vite 与 iframe 校验；既有构建警告不影响退出码 0。' }, { command: 'git diff --check', status: 'PASS', details: '根代理执行，退出码 0。' }],
}
const credentials = localCredentials()
const browser = await chromium.launch({ channel: 'msedge', headless: true })
let currentPage, currentTitle = '准备'
const save = () => fs.writeFileSync(path.join(reportDir, 'evidence.json'), `${JSON.stringify(evidence, null, 2)}\n`)
function safeError(error) {
  let result = error instanceof Error ? error.message : String(error)
  for (const value of [credentials.username, credentials.password]) if (value) result = result.split(value).join('[已隐藏]')
  return result.replace(/Bearer\s+\S+/gi, 'Bearer [已隐藏]').replace(/eyJ[\w-]+\.[\w-]+\.[\w-]+/g, '[已隐藏]')
}
async function screenshot(page, name) {
  const relative = `screenshots/${name}.png`
  await page.screenshot({ path: path.join(reportDir, relative), fullPage: true })
  return relative
}
function passed(title, details, screenshots) { evidence.checks.push({ title, status: 'PASS', details, screenshots }); save() }
async function tabs(page) {
  return page.evaluate(() => {
    const data = JSON.parse(localStorage.getItem('unreal-tran:web:tabs:v1') || '{}')
    const entries = Object.values(data).flatMap(bucket => bucket.tabs || [])
    return { path: location.pathname, entries: entries.map(tab => ({ key: tab.key, fullPath: tab.fullPath, title: tab.title, locked: tab.locked })), labels: [...document.querySelectorAll('.page-tab-link')].map(tab => ({ title: tab.textContent.trim(), active: tab.getAttribute('aria-selected') === 'true' })) }
  })
}
function has(snapshot, target) { return snapshot.entries.some(tab => tab.key === target) }
async function editorReady(page, id) {
  await expect(page.locator('.te-shell')).toBeVisible({ timeout: 90_000 })
  await page.waitForFunction(id => String(globalThis.__training?.project?.id) === String(id) && globalThis.__training?.sceneEditor?.container?.dataset?.state === 'ready', id, { timeout: 90_000 })
}
async function openEditor(page, base, id) { await page.goto(`${base}${editPath(id)}`); await editorReady(page, id) }
async function openList(page, base) { await page.goto(`${base}${listPath}`); await expect(page.locator('.platform-shell')).toBeVisible() }
async function activate(page, target) {
  const before = await tabs(page)
  const index = before.entries.findIndex(tab => tab.key === target)
  assert.ok(index >= 0, `Expected tab ${target}`)
  await page.locator('.page-tab-link').nth(index).click()
  await expect(page).toHaveURL(new RegExp(`${target.replaceAll('/', '\\/')}(?:\\?.*)?$`))
}
async function returnToList(page) { await page.locator('[data-action=return-to-list]').click() }
async function expectReturned(page, closedId, retainedId) {
  await expect(page).toHaveURL(new RegExp(`${listPath.replaceAll('/', '\\/')}(?:\\?.*)?$`))
  await expect.poll(async () => has(await tabs(page), editPath(closedId))).toBe(false)
  const snapshot = await tabs(page)
  assert.ok(has(snapshot, listPath))
  if (retainedId) assert.ok(has(snapshot, editPath(retainedId)))
  await expect(page.locator('.training-project-card').first()).toBeVisible({ timeout: 30_000 })
  await expect(page.locator('.training-project-grid > .el-loading-mask')).toBeHidden({ timeout: 30_000 })
  await page.waitForFunction(() => [...document.querySelectorAll('.training-card-cover img')].every(image => image.complete), null, { timeout: 20_000 })
  return snapshot
}
async function makeContext(base) {
  const context = await browser.newContext({ viewport: { width: 1920, height: 1080 }, locale: 'zh-CN' })
  let token = ''
  const authResponses = []
  await context.route('**/*', async route => {
    const request = route.request(), pathname = new URL(request.url()).pathname
    if (!['GET', 'HEAD', 'OPTIONS'].includes(request.method()) && (pathname.startsWith('/api/tran/') || pathname.startsWith('/fileapi/'))) {
      evidence.blockedWrites.push({ origin: base, path: pathname, method: request.method(), response: 503, forwarded: false })
      return route.fulfill({ status: 503, contentType: 'application/json', body: JSON.stringify({ code: 'E2E_SIMULATED_FAILURE', message: '浏览器模拟保存失败：测试禁止写入现有项目', data: null }) })
    }
    return route.continue()
  })
  const page = await context.newPage()
  currentPage = page
  page.setDefaultTimeout(25_000)
  page.on('pageerror', error => evidence.pageErrors.push(safeError(error)))
  page.on('response', async response => {
    if (new URL(response.url()).pathname.startsWith('/api/auth/')) authResponses.push({ path: new URL(response.url()).pathname, status: response.status() })
    if (new URL(response.url()).pathname.startsWith('/api/auth/v1/auth/')) {
      const payload = await response.json().catch(() => null)
      if (payload?.data?.accessToken) token = payload.data.accessToken
    }
  })
  await page.route('**/src/features/guide-legacy/demo-src/training-editor.js*', async route => {
    const response = await route.fetch(), source = await response.text(), marker = 'const editor = new TrainingProjectEditor(root, options);'
    assert.ok(source.includes(marker))
    await route.fulfill({ response, body: source.replace(marker, `${marker} globalThis.__training = editor;`) })
  })
  async function login() {
    await page.goto(`${base}/login`)
    await page.locator('[data-role-code=admin]').click()
    await page.locator('input[name=username]').fill(credentials.username)
    await page.locator('input[name=password]').fill(credentials.password)
    for (let attempt = 0; attempt < 3; attempt++) {
      await page.getByRole('button', { name: '登录系统', exact: true }).click()
      try { await expect(page.locator('.platform-shell')).toBeVisible({ timeout: 20_000 }); return }
      catch { if (attempt === 2) throw new Error('真实登录三次未完成') }
    }
  }
  await login()
  for (let attempt = 0; attempt < 3; attempt++) {
    try {
      await page.goto(`${base}/profile`)
      const teacher = page.locator('.profile-role-switcher button').filter({ hasText: '教员' })
      await expect(teacher).toBeVisible({ timeout: 20_000 })
      if (!(await teacher.getAttribute('class')).includes('active')) await teacher.click()
      await expect(teacher).toHaveClass(/active/, { timeout: 20_000 })
      break
    } catch (error) {
      evidence.preparationNotes.push({ origin: base, attempt: attempt + 1, path: new URL(page.url()).pathname, authResponses: authResponses.slice(-12), error: safeError(error) })
      if (await page.locator('.platform-shell').isVisible()) await screenshot(page, `profile-retry-${attempt + 1}`)
      save()
      if (attempt === 2) throw error
      if (new URL(page.url()).pathname === '/login') await login()
    }
  }
  const readProject = async id => {
    let response
    for (let attempt = 0; attempt < 3; attempt++) {
      response = await fetch(`${base}/api/tran/v1/content/projects/${id}`, { headers: { Authorization: `Bearer ${token}` }, signal: AbortSignal.timeout(20_000) })
      if (response.status === 200) break
      evidence.preparationNotes.push({ origin: base, stage: 'readProject', path: `/api/tran/v1/content/projects/${id}`, attempt: attempt + 1, status: response.status })
      save()
      if (response.status !== 503 || attempt === 2) break
      await new Promise(resolve => setTimeout(resolve, 1200))
    }
    assert.equal(response.status, 200)
    const detail = (await response.json()).data, project = detail.project
    assert.ok(typeof detail.currentVersion?.checksum === 'string' && detail.currentVersion.checksum.length > 0, 'Actual content checksum is required for unchanged-project verification')
    return { id: String(project.id), version: project.version, currentVersionId: project.currentVersionId, publishedVersionId: project.publishedVersionId, coverUri: project.coverUri, checksum: detail.currentVersion.checksum }
  }
  return { context, page, readProject }
}

save()
try {
  const base = evidence.environment.origins[0]
  const { context, page, readProject } = await makeContext(base)
  try {
    const beforeProjects = await Promise.all(['161', '162'].map(readProject))
    currentTitle = '手动切换标签保留原编辑页'
    await openList(page, base)
    await openEditor(page, base, '161')
    await openEditor(page, base, '162')
    const before = await tabs(page)
    assert.ok(has(before, listPath) && has(before, editPath('161')) && has(before, editPath('162')))
    await activate(page, editPath('161'))
    await editorReady(page, '161')
    const switched = await tabs(page)
    assert.ok(has(switched, editPath('161')) && has(switched, editPath('162')))
    passed(currentTitle, { before, after: switched, method: '真实页面标签点击' }, [await screenshot(page, '01-manual-switch-keeps-editors')])

    currentTitle = '顶部返回只关闭当前编辑标签，保留列表及另一编辑标签'
    await returnToList(page)
    const returned = await expectReturned(page, '161', '162')
    passed(currentTitle, returned, [await screenshot(page, '02-return-closes-current')])

    currentTitle = '刷新后已关闭标签不复活'
    await page.reload()
    await expect(page.locator('.platform-shell')).toBeVisible()
    const refreshed = await expectReturned(page, '161', '162')
    passed(currentTitle, refreshed, [await screenshot(page, '03-refresh-no-resurrection')])

    currentTitle = '未保存时 Escape 取消返回，原页与修改保留'
    await openEditor(page, base, '161')
    const input = page.locator('input[data-field=title]').filter({ visible: true }).first()
    const originalTitle = await input.inputValue()
    await input.fill(`${originalTitle}（标签返回临时测试）`)
    await input.press('Tab')
    await returnToList(page)
    await expect(page.locator('.el-message-box')).toContainText('离开训练编排？')
    const confirmation = await screenshot(page, '04-unsaved-return-confirmation')
    await page.keyboard.press('Escape')
    await expect(page.locator('.el-message-box')).toBeHidden()
    assert.equal(new URL(page.url()).pathname, editPath('161'))
    assert.ok(has(await tabs(page), editPath('161')))
    await expect(page.locator('input[data-field=title]').filter({ visible: true }).first()).toHaveValue(`${originalTitle}（标签返回临时测试）`)
    passed(currentTitle, await tabs(page), [confirmation, await screenshot(page, '05-escape-keeps-editor')])

    currentTitle = '保存并离开失败时不导航、不删除编辑标签（浏览器模拟 503）'
    await returnToList(page)
    await page.getByRole('button', { name: '保存并离开', exact: true }).click()
    const saveFailureMessage = page.locator('.el-message--error').filter({ hasText: '浏览器模拟保存失败' })
    await expect(saveFailureMessage).toBeVisible({ timeout: 45_000 })
    assert.equal(new URL(page.url()).pathname, editPath('161'))
    assert.ok(has(await tabs(page), editPath('161')))
    assert.ok(evidence.blockedWrites.some(write => write.method === 'PUT' && write.path.endsWith('/projects/161')))
    passed(currentTitle, { tabs: await tabs(page), writes: evidence.blockedWrites, simulated: true }, [await screenshot(page, '06-save-failure-keeps-editor')])
    await saveFailureMessage.locator('.el-message__closeBtn').click()

    currentTitle = '明确放弃修改后返回并关闭当前编辑标签'
    await returnToList(page)
    await page.getByRole('button', { name: '放弃修改', exact: true }).click()
    const discarded = await expectReturned(page, '161', '162')
    passed(currentTitle, discarded, [await screenshot(page, '07-discard-closes-current')])

    const afterProjects = await Promise.all(['161', '162'].map(readProject))
    assert.deepEqual(afterProjects, beforeProjects)
    evidence.projects = beforeProjects.map((before, index) => ({ ...before, unchanged: true, after: afterProjects[index] }))
    passed('服务端两项目版本、封面与内容校验值未变', { projects: evidence.projects, forwardedBusinessWrites: 0 }, [])
  } catch (error) {
    if (await page.locator('.platform-shell').isVisible()) evidence.failureScreenshot = await screenshot(page, 'failure-localhost')
    throw error
  } finally { await context.close() }

  currentTitle = '局域网地址返回列表也关闭当前编辑标签'
  const lan = evidence.environment.origins[1]
  const { context: lanContext, page: lanPage } = await makeContext(lan)
  try {
    await openList(lanPage, lan)
    await openEditor(lanPage, lan, '161')
    await returnToList(lanPage)
    passed(currentTitle, { origin: lan, tabs: await expectReturned(lanPage, '161') }, [await screenshot(lanPage, '08-lan-return-closes-current')])
  } catch (error) {
    if (await lanPage.locator('.platform-shell').isVisible()) evidence.failureScreenshot = await screenshot(lanPage, 'failure-lan')
    throw error
  } finally { await lanContext.close() }
  assert.deepEqual(evidence.pageErrors, [])
  evidence.status = 'PASS'
} catch (error) {
  const screenshots = evidence.failureScreenshot ? [evidence.failureScreenshot] : []
  if (currentPage && !currentPage.isClosed() && await currentPage.locator('.platform-shell').isVisible().catch(() => false)) screenshots.push(await screenshot(currentPage, 'failure').catch(() => ''))
  evidence.checks.push({ title: currentTitle, status: 'FAIL', details: safeError(error), screenshots: screenshots.filter(Boolean) })
  evidence.status = 'FAIL'
} finally {
  evidence.finishedAt = new Date().toISOString()
  save()
  await browser.close()
}

const escape = value => String(value ?? '').replace(/[&<>"']/g, char => ({ '&': '&amp;', '<': '&lt;', '>': '&gt;', '"': '&quot;', "'": '&#39;' })[char])
const checks = evidence.checks.map(check => `<article><h3>${escape(check.title)} <span class="${check.status.toLowerCase()}">${check.status}</span></h3><details><summary>查看真实观察记录</summary><pre>${escape(JSON.stringify(check.details, null, 2))}</pre></details>${(check.screenshots || []).map(image => `<figure><a href="${image}" target="_blank"><img src="${image}" alt="${escape(check.title)}" loading="lazy"></a><figcaption>${escape(check.title)} · ${image}</figcaption></figure>`).join('')}</article>`).join('')
const report = `<!doctype html><html lang="zh-CN"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>${escape(evidence.title)}</title><style>*{box-sizing:border-box}body{margin:0;background:#f2f6f8;color:#203b46;font:15px/1.75 system-ui,"Microsoft YaHei",sans-serif}main{max-width:1180px;margin:auto;padding:28px 22px}header{background:#103c45;color:white;padding:26px 30px;border-radius:12px}h1{font-size:26px;margin:0 0 12px}h2{font-size:21px}h3{font-size:17px;overflow-wrap:anywhere}section,article{background:white;border:1px solid #dce6ec;border-radius:10px;padding:22px 26px;margin:20px 0}.pass{color:#14744f}.fail{color:#b5373e}header .pass{color:#a9f0d2}pre{white-space:pre-wrap;overflow-wrap:anywhere;background:#f6f8fa;padding:15px;max-height:440px;overflow:auto;font-size:12px}summary{color:#137d6e;cursor:pointer}figure{margin:18px 0 0}img{display:block;width:100%;height:auto;border:1px solid #dce6ec}figcaption,footer{font-size:13px;color:#637f8c;overflow-wrap:anywhere}li,p{overflow-wrap:anywhere}@media(max-width:700px){main{padding:14px 10px}header,section,article{padding:18px}h1{font-size:23px}}</style></head><body><main><header><h1>${escape(evidence.title)} <span class="${evidence.status.toLowerCase()}">${evidence.status}</span></h1><p>真实教员身份 · 已有狐狸 161 / 牛奶卡车 162 · localhost 与局域网</p><p>通过 ${evidence.checks.filter(check => check.status === 'PASS').length} / ${evidence.checks.length} 项 · 业务真实写入 0 次</p></header><section><h2>资料 → 原型 → 设计 → 开发</h2><p>依据用户要求及现有标签约定：点击顶部“返回列表”完成导航后关闭当前编辑标签；导航取消或保存失败时保留。手动切换标签不关闭工程。</p><p>本次仅修改 LegacyTrainingPageView.vue 的返回回调，先等待路由与离开确认完成，再关闭捕获的原标签。保存、发布、标签 store 与 PageTabs 的路径保持现状。</p><ul>${evidence.scope.map(item => `<li>${escape(item)}</li>`).join('')}</ul></section><section><h2>测试与构建</h2>${evidence.commands.map(command => `<p><b>${escape(command.command)}：${command.status}</b> · ${escape(command.details)}</p>`).join('')}<p>JSON 证据：<a href="evidence.json">evidence.json</a>。所有截图来自实际浏览器，测试凭据没有写入报告。</p></section>${checks}<footer>开始 ${evidence.startedAt} · 完成 ${evidence.finishedAt} · 新增业务数据 0；浏览器内临时修改已放弃。</footer></main></body></html>`
fs.writeFileSync(path.join(reportDir, 'index.html'), report)
console.log(JSON.stringify({ status: evidence.status, passed: evidence.checks.filter(check => check.status === 'PASS').length, checks: evidence.checks.length, screenshots: evidence.checks.flatMap(check => check.screenshots || []).length, blockedWrites: evidence.blockedWrites.length, report: 'reports/training-return-tabs-20260906/index.html' }))
if (evidence.status !== 'PASS') process.exitCode = 1