private void MakeIsbnLookup()
{
_lookupIsbn = new Dictionary <string, BookInfo>();
_originalBooks
.Where(b => !string.IsNullOrEmpty(b.Isbn))
.ToList()
.ForEach(b =>
{
string isbn = Isbn.Normalise(b.Isbn);
if (!_lookupIsbn.ContainsKey(isbn))
{
_lookupIsbn.Add(isbn, b);
}
});
}
async Task SaveBook(BookFilesInfo book)
{
BookInfo info = book.Book;
if (!string.IsNullOrEmpty(info.Isbn))
{
info.Isbn = Isbn.Normalise(info.Isbn);
}
await _originalDataSource.SaveBook(info);
_messages.Write("Added: {0} - {1} [{2}]", book.Book.Title, book.Book.Author, book.Book.Isbn);
foreach (var file in book.Files)
{
await SaveBookFile(file);
}
}
async Task <FindResultInfo> FindBook(BookInfo incoming)
{
if (incoming == null)
{
throw new ArgumentException("incoming not set");
}
// 1. Find by ISBN
if (!string.IsNullOrEmpty(incoming.Isbn))
{
string isbn = Isbn.Normalise(incoming.Isbn);
BookInfo book = await _originalDataSource.GetBookByIsbn(isbn);
if (book != null)
{
return new FindResultInfo {
Status = MatchStatus.UpToDate, Book = book
}
}
;
}
// 2. Title + Author
if (!string.IsNullOrEmpty(incoming.Title) && !string.IsNullOrEmpty(incoming.Author))
{
BookInfo book = await _originalDataSource.GetBookByTitleAuthor(incoming.Title, incoming.Author);
if (book != null)
{
return new FindResultInfo {
Status = MatchStatus.UpToDate, Book = book
}
}
;
}
return(new FindResultInfo {
Book = null, Status = MatchStatus.NewBook
});
}
}
}
BookInfo FindBook(BookInfo match, out MatchStatus status)
{
// Look by Isbn
if (!string.IsNullOrEmpty(match.Isbn))
{
string isbn = Isbn.Normalise(match.Isbn);
if (_lookupIsbn.ContainsKey(isbn))
{
status = MatchStatus.UpToDate;
return(_lookupIsbn[isbn]);
}
}
// Look by Title and then Author
if (!string.IsNullOrEmpty(match.Title))
{
string title = match.Title.ToLower();
if (_lookupTitle.ContainsKey(title))
{
var group = _lookupTitle[title];
var books = group.ToArray();
foreach (var book in books)
{
if (string.Equals(title, book.Title, StringComparison.CurrentCultureIgnoreCase))
{
status = MatchStatus.UpToDate;
return(book);
}
}
}
}
// Nothing matched it
status = MatchStatus.NewBook;
return(null);
}