/**
 * 模拟 MenuProcessor 过滤逻辑，排查菜单被滤空原因。
 * 用法: node scripts/simulate-menu-filter.mjs
 */
import fs from 'fs'
import path from 'path'
import { fileURLToPath } from 'url'

const __dirname = path.dirname(fileURLToPath(import.meta.url))

function normalizeMenuCode(input) {
  const raw = String(input ?? '').trim()
  if (!raw) return ''
  const withUnderscore = raw
    .replace(/[\s-]+/g, '_')
    .replace(/([a-z0-9])([A-Z])/g, '$1_$2')
  return withUnderscore.toLowerCase()
}

function filterMenuByRoles(menu, roles) {
  return menu.reduce((acc, item) => {
    const itemRoles = item.meta?.roles
    const hasPermission = !itemRoles || itemRoles.some((role) => roles?.includes(role))
    if (hasPermission) {
      const filteredItem = { ...item }
      if (filteredItem.children?.length) {
        filteredItem.children = filterMenuByRoles(filteredItem.children, roles)
      }
      acc.push(filteredItem)
    }
    return acc
  }, [])
}

function filterMenuByCodes(menu, codes, level = 1) {
  return menu.reduce((acc, item) => {
    const rawCode = item.meta?.menuCode ?? item.name
    const code = normalizeMenuCode(rawCode)
    const hasSelfPermission = !!code && codes.has(code)
    const filteredChildren = item.children?.length
      ? filterMenuByCodes(item.children, codes, level + 1)
      : item.children
    const shouldKeep =
      hasSelfPermission || (Array.isArray(filteredChildren) && filteredChildren.length > 0)
    if (shouldKeep) {
      acc.push({ ...item, children: filteredChildren })
    }
    return acc
  }, [])
}

const Layout = '/index/index'

function filterEmptyMenus(menuList) {
  return menuList
    .map((item) => {
      if (item.children?.length) {
        return { ...item, children: filterEmptyMenus(item.children) }
      }
      return item
    })
    .filter((item) => {
      if ('children' in item) {
        return Array.isArray(item.children) && item.children.length > 0
      }
      if (item.meta?.isIframe === true || item.meta?.link) return true
      if (item.component && item.component !== '' && item.component !== Layout) return true
      return false
    })
}

function extractMenuCodesFromFile(content) {
  const re = /menuCode:\s*['"]([^'"]+)['"]/g
  const codes = []
  let m
  while ((m = re.exec(content))) codes.push(m[1])
  return codes
}

const menuCodesFromApi = [
  'bx:advanceApply:list', 'bx:advanceApply:submit', 'bx:advanceApprove:approve', 'bx:advanceApprove:list',
  'bx:advanceIssue:issue', 'bx:advanceIssue:list', 'bx:expenseItem:add', 'bx:expenseItem:edit',
  'bx:expenseItem:list', 'bx:expenseItem:remove', 'bx:payment:list', 'bx:payment:pay',
  'bx:reimburseApply:list', 'bx:reimburseApply:submit', 'bx:reimburseApprove:list', 'bx:viewAll:list',
  'bx:viewMine:list', 'bx:viewTodo:list', 'bx:workflowAdvance:list', 'bx:workflowReimburse:list',
  'crm:clue:add', 'crm:clue:assign', 'crm:clue:convert', 'crm:clue:edit', 'crm:clue:export',
  'crm:clue:follow', 'crm:clue:import', 'crm:clue:invalid', 'crm:clue:list', 'crm:clue:query',
  'crm:clue:remove', 'crm:contract:list', 'crm:customer:add', 'crm:customer:deal', 'crm:customer:edit',
  'crm:customer:list', 'crm:customer:query', 'crm:customer:remove', 'crm:customer:toPool',
  'crm:customer:transfer', 'crm:customerPool:assign', 'crm:customerPool:claim', 'crm:customerPool:list',
  'crm:opportunity:add', 'crm:opportunity:assign', 'crm:opportunity:edit', 'crm:opportunity:export',
  'crm:opportunity:follow', 'crm:opportunity:list', 'crm:opportunity:query', 'crm:opportunity:remove',
  'crm:product:list', 'crm:productCategory:list', 'crm:quote:list', 'db:dashboard:list', 'db:inventory:add',
  'db:inventory:edit', 'db:inventory:list', 'db:inventory:query', 'db:inventory:remove', 'db:plan:add',
  'db:plan:edit', 'db:plan:list', 'db:plan:query', 'db:plan:remove', 'db:weighing:add', 'db:weighing:edit',
  'db:weighing:list', 'db:weighing:query', 'db:weighing:remove', 'db:weighing:void', 'pl:carrier:list',
  'pl:document:list', 'pl:driver:list', 'pl:freight-approval:list', 'pl:freight-approval:query',
  'pl:freight-disburse:list', 'pl:freight-disburse:query', 'pl:freight:approve', 'pl:freight:create',
  'pl:freight:disburse', 'pl:freight:edit', 'pl:freight:list', 'pl:freight:query', 'pl:freight:submit',
  'pl:freight:withdraw', 'pl:plan-archive:archive', 'pl:plan-archive:edit', 'pl:plan-archive:list',
  'pl:plan-archive:query', 'pl:plan-cert:list', 'pl:plan:list', 'pl:self-vehicle:list',
  'pl:transport-address:list', 'pl:vehicle-maintenance-apply:add', 'pl:vehicle-maintenance-apply:cancel',
  'pl:vehicle-maintenance-apply:edit', 'pl:vehicle-maintenance-apply:list', 'pl:vehicle-maintenance-apply:query',
  'pl:vehicle-maintenance-apply:remove', 'pl:vehicle-maintenance-process:add', 'pl:vehicle-maintenance-process:edit',
  'pl:vehicle-maintenance-process:list', 'pl:vehicle-maintenance-process:query', 'pl:vehicle-maintenance-process:remove',
  'pl:vehicle-recharge-apply:add', 'pl:vehicle-recharge-apply:cancel', 'pl:vehicle-recharge-apply:edit',
  'pl:vehicle-recharge-apply:list', 'pl:vehicle-recharge-apply:query', 'pl:vehicle-recharge-apply:remove',
  'pl:vehicle-recharge-record:add', 'pl:vehicle-recharge-record:edit', 'pl:vehicle-recharge-record:list',
  'pl:vehicle-recharge-record:query', 'pl:vehicle-recharge-record:remove', 'pl:vehicle-urea-apply:add',
  'pl:vehicle-urea-apply:cancel', 'pl:vehicle-urea-apply:edit', 'pl:vehicle-urea-apply:list',
  'pl:vehicle-urea-apply:query', 'pl:vehicle-urea-apply:remove', 'pl:vehicle-urea-disburse:add',
  'pl:vehicle-urea-disburse:edit', 'pl:vehicle-urea-disburse:list', 'pl:vehicle-urea-disburse:query',
  'pl:vehicle-urea-disburse:remove', 'pl:vehicle:list'
]

const sqxp = fs.readFileSync(path.join(__dirname, '../src/router/modules/sqxp.ts'), 'utf8')
const pl = fs.readFileSync(path.join(__dirname, '../src/router/modules/pl.ts'), 'utf8')
const routeMenuCodes = [...extractMenuCodesFromFile(sqxp), ...extractMenuCodesFromFile(pl)]

const apiSet = new Set(menuCodesFromApi.map(normalizeMenuCode))
const missingInApi = routeMenuCodes.filter((c) => !apiSet.has(normalizeMenuCode(c)))
const listPermsInApi = menuCodesFromApi.filter((c) => c.endsWith(':list'))

console.log('API menuCodes count:', menuCodesFromApi.length)
console.log('Route menuCode count:', routeMenuCodes.length)
console.log('Route codes NOT in API (normalized):', missingInApi.length)
missingInApi.slice(0, 30).forEach((c) => console.log('  -', c, '->', normalizeMenuCode(c)))

// Build minimal tree from route files is hard; import compiled - skip, use dynamic import of ts not available
// Instead eval route structure counts from grep

console.log('\nList perms in API:', listPermsInApi.length)