private async ValueTask <BookImportResult> ImportBookAsync(Book book, BookContent bookContent)
{
using var reader = new StreamReader(bookContent.Content);
var content = await reader.ReadToEndAsync()
.ConfigureAwait(false);
var languageInfo = await _languageProvider.FindLanguageInformationAsync(book.Language)
.ConfigureAwait(false);
var tooShortSentences = _textProcessor.GetSentencesEnumerable(content, languageInfo)
.Where(sentence => sentence.Length < MinSentenceLengthCharacters)
.Distinct()
.ToList();
var notAllowedSentences = _textProcessor.GetSentencesEnumerable(content)
.Where(sentence => !languageInfo.IsAllLettersAllowed(sentence))
.Distinct()
.ToList();
var notAllowedCharacters = notAllowedSentences.SelectMany(
sentence => sentence.Where(character => !languageInfo.IsAllLettersAllowed(character.ToString())))
.Distinct()
.ToList();
var sentencesEnumerable = _bookContentProcessor.ProcessBookContent(
book.BookId, content, languageInfo);
await _sentenceRepository.SaveByBatchesAsync(sentencesEnumerable)
.ConfigureAwait(false);
return(new BookImportResult(
book,
tooShortSentences,
notAllowedSentences,
string.Join(string.Empty, notAllowedCharacters)));
}