public async Task <IActionResult> Index(AddToBookShelfViewModel input)
{
string login = this.HttpContext.User.Claims.First(c => c.Type == System.Security.Claims.ClaimTypes.NameIdentifier).Value;
Guid num = dbContext.Users.Where(user => user.Login == login).Single().Id;
if (!await this.addToBookShelfService.AddBookToBookshelf(input, this.HttpContext.User.GetId()))
{
input.Message = "Book exists on your bookshelf";
return(this.View(input));
}
else
{
input.Message = "Book added successfully!";
input.Success = true;
return(this.View(input));
}
}
public async Task <bool> AddBookToBookshelf(AddToBookShelfViewModel book, Guid?user)
{
BookShelf?userBookShelf = this.applicationDbContext.BookShelves.FirstOrDefault(b => b.UserId == user); // bookshelf from current user
if (userBookShelf == null)
{
userBookShelf = new BookShelf()
{
Id = Guid.NewGuid(),
UserId = user.Value
};
this.applicationDbContext.Add(userBookShelf);
}
book.Name = book.Name.Trim();
Book bok = this.applicationDbContext.Books.FirstOrDefault(b => b.Name == book.Name);
Guid?photo = book.Photo != null ? await attachmentService.AddAttachment(book.Photo) : (Guid?)null;
if (bok != null) //book already exists
{
if (await this.applicationDbContext.BookShelfBooks
.AnyAsync(b => b.BookShelfId == userBookShelf.Id && b.BookId == bok.Id && b.IsRemoved == false && b.IsLocked == false)) // exists in bookshelf? throw error
{
return(false);
}
if (await this.applicationDbContext.BookShelfBooks.AnyAsync(b => b.BookShelfId == userBookShelf.Id && b.BookId == bok.Id && b.IsRemoved == true && b.IsLocked == false))
{
BookShelfBook?bookToBringBack = this.applicationDbContext.BookShelfBooks.FirstOrDefault(b =>
b.BookShelfId == userBookShelf.Id && b.BookId == bok.Id);
bookToBringBack.IsRemoved = false;
bookToBringBack.Photo = photo;
await this.applicationDbContext.SaveChangesAsync();
return(true);
}
else // if no, add to wishlist
{
userBookShelf.BookShelfBooks.Add(new BookShelfBook()
{
Id = Guid.NewGuid(),
BookId = bok.Id,
Photo = photo,
});
}
}
else // book doesnt exists, add to Book and wishlist
{
Book bok2 = null;
List <Subject> subjectslist = null;
var bookAPI = await this.SearchBook(book.Name, book.Author);
if (bookAPI != null)
{
bok2 = this.applicationDbContext.Books.FirstOrDefault(b => b.Name == bookAPI.Title);
subjectslist =
this.applicationDbContext.Subjects.Where(s => bookAPI.Subjects.Contains(s.Name)).ToList();
}
if (bok2 == null) //book doesnt exists in database
{
book.Created = "01.01." + book.Created;
DateTime d = DateTime.Parse(book.Created);
bok = new Book()
{
Id = Guid.NewGuid(),
Name = bookAPI?.Title ?? book.Name,
Author = bookAPI?.Authors.FirstOrDefault().Name ?? book.Author,
Created = bookAPI?.FirstPublishDate ?? d,
CoverUrl = bookAPI?.Covers.FirstOrDefault().ToString() ?? null,
Isbn = bookAPI?.Key ?? null,
Subjects = subjectslist ?? null
};
this.applicationDbContext.Books.Add(bok);
userBookShelf.BookShelfBooks.Add(new BookShelfBook()
{
Id = Guid.NewGuid(),
BookId = bok.Id,
Photo = photo,
});
}
else //book exists in database
{
if (await this.applicationDbContext.BookShelfBooks.AnyAsync(
b => b.BookShelfId == userBookShelf.Id &&
b.BookId == bok2.Id &&
!b.IsLocked &&
!b.IsRemoved)) // exists in wishlist? throw error
{
return(false);
}
else // if no, add to wishlist
{
userBookShelf.BookShelfBooks.Add(new BookShelfBook()
{
Id = Guid.NewGuid(),
BookId = bok2.Id,
Photo = photo,
});
}
}
}
await this.applicationDbContext.SaveChangesAsync();
return(true);
}
