/// <summary>
/// Takes in the words of a mnemonic sentence and it rebuilds the word index, having the valid index allows us to hot swap between languages/word lists :)
/// </summary>
/// <param name="wordsInMnemonicSentence"> a string array containing each word in the mnemonic sentence</param>
/// <returns>The word index that can be used to build the mnemonic sentence</returns>
private List <int> RebuildWordIndexes(string[] wordsInMnemonicSentence)
{
List <int> wordIndexList = new List <int>();
string langName = "English";
Wordlists.Wordlist wordlist = new Wordlists.English();
foreach (string s in wordsInMnemonicSentence)
{
int idx = -1;
if (!wordlist.WordExists(s, out idx))
{
throw new Exception("Word " + s + " is not in the wordlist for language " + langName + " cannot continue to rebuild entropy from wordlist");
}
wordIndexList.Add(idx);
}
return(wordIndexList);
}
/// <summary>
/// Uses the Wordlist Index to create a scentence ow words provided by the wordlist of this objects language attribute
/// </summary>
/// <returns>A scentence of words</returns>
private string GetMnemonicSentence()
{
//trap for words that were not in the word list when built. If custom words were used, we will not support the rebuild as we don't have the words
if (_wordIndexList.Contains(-1))
{
throw new Exception("the wordlist index contains -1 which means words were used in the mnemonic sentence that cannot be found in the wordlist and the index to sentence feature cannot be used. Perhaps a different language wordlist is needed?");
}
string mSentence = cEmptyString;
Wordlists.Wordlist wordlist = new Wordlists.English();
for (int i = 0; i < _wordIndexList.Count; i++)
{
mSentence += wordlist.GetWordAtIndex(_wordIndexList[i]);
if (i + 1 < _wordIndexList.Count)
{
mSentence += " ";
}
}
return(mSentence);
}