/**
 * Normalize lobster page date displays to use lobsterTimeFormatter / lobsterTime filter.
 * Run from repo root: node saas-companyui/scripts/normalize-lobster-dates.js
 */
const fs = require('fs')
const path = require('path')

const ROOT = path.resolve(__dirname, '../..')
const UI_DIRS = [
  path.join(ROOT, 'saas-companyui/src/views/lobster'),
  path.join(ROOT, 'saas-mgnui/src/views/lobster'),
  path.join(ROOT, 'adminui/src/views/lobster')
]

const DATE_PROPS = [
  'createTime', 'create_time', 'updateTime', 'update_time',
  'sendTime', 'startTime', 'endTime', 'triggerTime', 'executeTime',
  'lastConversationTime', 'lastEvolutionTime', 'lastMsgTime', 'last_msg_time'
]
const DATE_PROP_PATTERN = DATE_PROPS.join('|')

function walk(dir, files = []) {
  if (!fs.existsSync(dir)) return files
  for (const name of fs.readdirSync(dir)) {
    const full = path.join(dir, name)
    if (fs.statSync(full).isDirectory()) walk(full, files)
    else if (name.endsWith('.vue')) files.push(full)
  }
  return files
}

function addTableFormatters(content) {
  const re = new RegExp(
    `<el-table-column\\b((?![^>]*:formatter)(?![^>]*slot-scope)[^>]*\\bprop="(${DATE_PROP_PATTERN})"[^>]*?)(\\s*\\/?>)`,
    'g'
  )
  return content.replace(re, (m, attrs, prop, end) => {
    if (attrs.includes('lobsterTimeFormatter')) return m
    const trimmedEnd = end.trim() === '/' ? ' />' : '>'
    return `<el-table-column${attrs} :formatter="lobsterTimeFormatter"${trimmedEnd}`
  })
}

function patchMustache(content) {
  let out = content
  const exprs = [
    'detail.createTime', 'detail.updateTime', 'detail.create_time', 'detail.update_time',
    'detail.triggerTime', 'logDetail.createTime', 'customer.createTime',
    'gepaDetail.triggerTime'
  ]
  for (const expr of exprs) {
    const fallback = new RegExp(`\\{\\{\\s*${expr.replace(/\./g, '\\.')}\\s*\\|\\|\\s*'-'\\s*\\}\\}`, 'g')
    out = out.replace(fallback, `{{ ${expr} | lobsterTime }}`)
    const bare = new RegExp(`\\{\\{\\s*${expr.replace(/\./g, '\\.')}\\s*\\}\\}`, 'g')
    out = out.replace(bare, `{{ ${expr} | lobsterTime }}`)
  }
  out = out.replace(/\{\{\s*scope\.row\.createTime\s*\|\|\s*scope\.row\.create_time\s*\}\}/g,
    '{{ (scope.row.createTime || scope.row.create_time) | lobsterTime }}')
  return out.replace(/\{\{\s*([^|{}]+)\s*\|\s*lobsterTime\s*\|\s*lobsterTime\s*\}\}/g, '{{ $1 | lobsterTime }}')
}

function patchTimestamps(content) {
  return content.replace(/:timestamp="([a-zA-Z0-9_.]+)"/g, (m, expr) => {
    if (expr.includes('formatLobsterDateTime') || expr.includes('lobsterTime')) return m
    return `:timestamp="formatLobsterDateTime(${expr})"`
  })
}

function patchFmtTimeFilter(content) {
  if (!content.includes('fmtTime(v)')) return content
  return content.replace(
    /fmtTime\(v\)\s*\{\s*return v \? v\.replace\('T', ' '\)\.substring\(0, 19\) : '-'\s*\}/,
    'fmtTime(v) { return this.formatLobsterDateTime(v) }'
  )
}

function patchChatTestFormatTime(content) {
  if (!content.includes('formatTime(date)')) return content
  return content.replace(
    /formatTime\(date\)\s*\{[\s\S]*?\n\s*\}/,
    `formatTime(date) {
      return this.formatLobsterDateTime(date)
    }`
  )
}

function patchWorkflowExecution(content) {
  if (!content.includes('formatDateTime(val)')) return content
  let out = content.replace(
    /formatDateTime\(val\)\s*\{\s*\n\s*return parseTime\(val\) \|\| '??'\s*\n\s*\}/,
    `formatDateTime(val) {
      return this.formatLobsterDateTime(val)
    }`
  )
  if (out.includes("import { parseTime } from '@/utils/common'") && !out.includes('parseTime(')) {
    out = out.replace(/import \{ parseTime \} from '@\/utils\/common'\n/, '')
  }
  return out
}

function processFile(file) {
  let content = fs.readFileSync(file, 'utf8')
  const original = content
  content = addTableFormatters(content)
  content = patchMustache(content)
  content = patchTimestamps(content)
  content = patchFmtTimeFilter(content)
  content = patchChatTestFormatTime(content)
  content = patchWorkflowExecution(content)
  if (content !== original) {
    fs.writeFileSync(file, content, 'utf8')
    return true
  }
  return false
}

let changed = 0
for (const dir of UI_DIRS) {
  for (const file of walk(dir)) {
    if (processFile(file)) {
      changed++
      console.log('updated', path.relative(ROOT, file))
    }
  }
}
console.log('done, files changed:', changed)