mirall-cli / node_modules / bip39-mnemonic / wordlist / index.js

// note all JSON files in this folder are generated with npm run generate-wordlist
const lookup = require('./lookup.json')

module.exports = {
  loadWordlist,
  detectLanguage
}

function loadWordlist (language) {
  switch (language) {
    case 'chinese_simplified': return require('./chinese_simplified.json')
    case 'chinese_traditional': return require('./chinese_traditional.json')
    case 'czech': return require('./czech.json')
    case 'english': return require('./english.json')
    case 'french': return require('./french.json')
    case 'italian': return require('./italian.json')
    case 'japanese': return require('./japanese.json')
    case 'korean': return require('./korean.json')
    case 'portuguese': return require('./portuguese.json')
    case 'russian': return require('./russian.json')
    case 'spanish': return require('./spanish.json')
    case 'turkish': return require('./turkish.json')
  }

  throw new Error('Unknown language: ' + language)
}

function detectLanguage (words) {
  let candidate = null

  for (const word of words) {
    const languages = lookup[word]
    if (!languages) return null

    if (languages.length === 1) return languages[0]

    if (!candidate) {
      candidate = languages
      continue
    }

    const intersect = candidate.filter(l => languages.includes(l))
    if (intersect.length === 1) return intersect[0]
  }

  return candidate[0]
}