import { existsSync, readFileSync } from 'node:fs'

const requiredFiles = [
  'src/app/App.tsx',
  'src/pages/login.tsx',
  'src/pages/workspace-body.tsx',
  'src/pages/workspace-home.tsx',
  'src/pages/workspace-explore.tsx',
  'src/pages/projects/project-overview.tsx',
  'src/pages/projects/project-channel-page.tsx',
  'src/pages/projects/project-tasks.tsx',
  'src/pages/projects/project-ai.tsx',
  'src/pages/projects/project-notes.tsx',
  'src/pages/projects/project-cron.tsx',
  'src/pages/projects/project-new-channel.tsx',
  'src/pages/projects/project-rail.tsx',
  'src/pages/projects/project-sidebar.tsx',
  'src/pages/projects/project-topbar.tsx',
  'src/pages/projects/project-statusbar.tsx',
  'src/pages/projects/project-types.ts',
  'src/api/client.ts',
  'src/api/projects.ts',
  'src/api/mappers.tsx',
  'src/api/search.ts',
  'src/api/inbox.ts',
]

const failures = requiredFiles.filter((file) => !existsSync(file)).map((file) => `missing ${file}`)

const tokenSource = existsSync('src/styles/tokens.css') ? readFileSync('src/styles/tokens.css', 'utf8') : ''
for (const token of ['--color-primary: #165dff', '--font-sans', '--space-4: 16px']) {
  if (!tokenSource.toLowerCase().includes(token)) failures.push(`missing token ${token}`)
}
for (const forbidden of ['森林Agent', 'AI智能体', '实时接口', '进度 60%']) {
  for (const file of requiredFiles.filter((name) => name.endsWith('.tsx'))) {
    if (readFileSync(file, 'utf8').includes(forbidden)) failures.push(`${file} contains forbidden copy ${forbidden}`)
  }
}

if (existsSync('src/App.tsx')) {
  failures.push('legacy src/App.tsx should be removed after page split')
}

for (const removed of ['src/pages/projects/project-data.tsx', 'src/pages/projects/project-inspector.tsx', 'src/pages/projects/project-inbox.tsx']) {
  if (existsSync(removed)) {
    failures.push(`${removed} should be removed; frontend data must come from backend APIs`)
  }
}

if (existsSync('src/app/App.tsx')) {
  const appSource = readFileSync('src/app/App.tsx', 'utf8')
  for (const forbidden of ['function LoginPage', 'function Workbench', 'function OverviewContent']) {
    if (appSource.includes(forbidden)) {
      failures.push(`src/app/App.tsx still contains ${forbidden}`)
    }
  }
}

const apiFiles = existsSync('src/api')
  ? ['client.ts', 'projects.ts', 'mappers.tsx', 'search.ts', 'inbox.ts']
      .map((name) => `src/api/${name}`)
      .filter((file) => existsSync(file))
  : []
const apiSource = apiFiles.map((file) => readFileSync(file, 'utf8')).join('\n')
for (const forbidden of [
  { pattern: /\bID\s*\?\s*:/, label: 'optional PascalCase ID compatibility field' },
  { pattern: /\bName\s*\?\s*:/, label: 'optional PascalCase Name compatibility field' },
  { pattern: /['"`]\/api\/projects/, label: 'legacy /api/projects path' },
  {
    pattern: /\b(?:project|task|inbox)Id\s*\??\s*:\s*(?:string\s*\|\s*)?number\b/i,
    label: 'numeric project/task/inbox identity',
  },
]) {
  if (forbidden.pattern.test(apiSource)) failures.push(`src/api contains ${forbidden.label}`)
}

const clientSource = existsSync('src/api/client.ts') ? readFileSync('src/api/client.ts', 'utf8') : ''
if (!clientSource.includes("'/api/v1/auth/login'")) failures.push('login must use /api/v1/auth/login')
if (!clientSource.includes('export class ApiError extends Error')) failures.push('client must export ApiError')

const projectsSource = existsSync('src/api/projects.ts') ? readFileSync('src/api/projects.ts', 'utf8') : ''
if (!projectsSource.includes("'/api/v1/projects'")) failures.push('project API must use /api/v1/projects')
if (/['"`]\/api\/(?!v1\/)/.test(apiSource)) failures.push('src/api paths must use the /api/v1 prefix')

for (const match of apiSource.matchAll(/export type (\w+DTO)\s*=\s*\{([\s\S]*?)\n\}/g)) {
  const [, name, body] = match
  if (/^\s*\w+\s*\?\s*:/m.test(body)) failures.push(`${name} fields must be required`)
  if (/^\s*[A-Z]\w*\s*:/m.test(body)) failures.push(`${name} fields must use camelCase`)
  if (/^\s*(?:id|\w+Id)\s*:\s*number\b/im.test(body)) failures.push(`${name} identities must be strings`)
}

const searchSource = existsSync('src/api/search.ts') ? readFileSync('src/api/search.ts', 'utf8') : ''
if (searchSource && !searchSource.includes("'/api/v1/search'")) failures.push('search API must use /api/v1/search')

const inboxSource = existsSync('src/api/inbox.ts') ? readFileSync('src/api/inbox.ts', 'utf8') : ''
for (const path of ['/api/v1/projects/', '/api/v1/inbox/']) {
  if (inboxSource && !inboxSource.includes(path)) failures.push(`inbox API must use ${path}`)
}

const html = readFileSync('index.html', 'utf8')
if (!html.includes('<html lang="zh-CN">')) failures.push('index language must be zh-CN')
if (!html.includes('<title>森林AI</title>')) failures.push('document title must be 森林AI')
if (!existsSync('public/senlinai-icon.svg')) failures.push('missing public/senlinai-icon.svg')
if (!html.includes('href="/senlinai-icon.svg"')) failures.push('index must use senlinai-icon.svg as the canonical favicon')
if (existsSync('public/favicon.svg')) failures.push('legacy public/favicon.svg must be removed; senlinai-icon.svg is the only brand asset')
if (existsSync('public/senlinai-icon.svg')) {
  const icon = readFileSync('public/senlinai-icon.svg', 'utf8')
  if (icon.includes('<text') || icon.includes('<title')) failures.push('brand SVG must not include text or title metadata')
  if (icon.includes('role=') || icon.includes('aria-labelledby=')) failures.push('brand SVG must not expose presentation ARIA')
}
const appStyles = readFileSync('src/App.css', 'utf8')
if (/\.theme-dark\s*\{[^}]*--color-primary\s*:/s.test(appStyles)) {
  failures.push('theme-dark must not override the #165DFF primary token')
}
if (!appStyles.includes('.brand-icon {')) failures.push('brand-icon must have an explicit base size')
if (!appStyles.includes('.brand-lockup.large .brand-icon')) failures.push('login brand icon must have an explicit size')
if (!appStyles.includes('.rail-brand {')) failures.push('rail brand button must have explicit layout')
if (appStyles.includes('.brand-symbol')) failures.push('legacy brand-symbol styles must be removed')
for (const file of ['src/pages/login.tsx', 'src/pages/projects/project-topbar.tsx', 'src/pages/projects/project-rail.tsx']) {
  const source = readFileSync(file, 'utf8')
  if (!source.includes('/senlinai-icon.svg')) failures.push(`${file} must use the brand icon`)
}

if (failures.length) {
  console.error(failures.join('\n'))
  process.exit(1)
}

console.log('structure ok')