/**
 * 将 queryForm 内带 list-search-actions 的块移到 </el-form> 前，使搜索按钮靠右对齐。
 * Usage: node scripts/move-list-search-actions-to-end.js [viewsDir]
 */
const fs = require('fs')
const path = require('path')

const viewsDir = process.argv[2]
  ? path.resolve(process.argv[2])
  : path.join(__dirname, '../src/views')

function walk(dir, 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 normalizeActionsBlock(block) {
  // el-col 改为 template，避免嵌套 el-row 时破坏 el-form-item 布局
  return block
    .replace(/<el-col\b([^>]*)>/g, '<template$1>')
    .replace(/<\/el-col>/g, '</template>')
}

function moveSearchActionsToEnd(content) {
  const queryIdx = content.indexOf('ref="queryForm"')
  if (queryIdx < 0 || !content.includes('list-search-actions')) return content

  const formOpenStart = content.lastIndexOf('<el-form', queryIdx)
  const formCloseStart = content.indexOf('</el-form>', queryIdx)
  if (formOpenStart < 0 || formCloseStart < 0) return content

  const before = content.slice(0, formOpenStart)
  const formTagEnd = content.indexOf('>', formOpenStart) + 1
  const formOpenTag = content.slice(formOpenStart, formTagEnd)
  let formBody = content.slice(formTagEnd, formCloseStart)
  const after = content.slice(formCloseStart)

  const actionsRe = /<el-form-item\b[^>]*\blist-search-actions\b[^>]*>[\s\S]*?<\/el-form-item>\s*/g
  const actions = []
  formBody = formBody.replace(actionsRe, (m) => {
    actions.push(normalizeActionsBlock(m.replace(/\s+$/, '')))
    return ''
  })

  if (actions.length === 0) return content

  formBody = formBody.replace(/\n{3,}/g, '\n\n').replace(/\s+$/, '')
  const actionsBlock = '\n' + actions.join('\n') + '\n'
  return before + formOpenTag + formBody + actionsBlock + after
}

let changed = 0
for (const file of walk(viewsDir)) {
  const original = fs.readFileSync(file, 'utf8')
  const next = moveSearchActionsToEnd(original)
  if (next !== original) {
    fs.writeFileSync(file, next, 'utf8')
    changed++
    console.log(path.relative(viewsDir, file))
  }
}

console.log('\nMoved list-search-actions in ' + changed + ' files')