const fs = require('fs')
const path = require('path')
const compiler = require('vue-template-compiler')

const roots = [
  path.join(__dirname, '../src/views'),
  path.join(__dirname, '../../saas-mgnui/src/views'),
  path.join(__dirname, '../../adminui/src/views')
]

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 rootTemplate(content) {
  const scriptIdx = content.search(/<script[\s>]/)
  const block = scriptIdx >= 0 ? content.slice(0, scriptIdx) : content
  const start = block.indexOf('<template>')
  const end = block.lastIndexOf('</template>')
  if (start < 0 || end <= start) return null
  return block.slice(start + '<template>'.length, end)
}

const errors = []
for (const root of roots) {
  for (const file of walk(root)) {
    const content = fs.readFileSync(file, 'utf8')
    const tpl = rootTemplate(content)
    if (!tpl) continue
    const result = compiler.compile(tpl, { whitespace: 'preserve' })
    if (result.errors && result.errors.length) {
      errors.push({ file, messages: result.errors })
    }
  }
}

console.log('Template compile errors:', errors.length)
for (const e of errors) {
  console.log('\n' + e.file.replace(/\\/g, '/'))
  for (const msg of e.messages.slice(0, 5)) console.log(' ', msg)
  if (e.messages.length > 5) console.log(' ', `... +${e.messages.length - 5} more`)
}