public async Task <IActionResult> Index(AddToWishListViewModel 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.addToWishListService.AddBook(input, this.HttpContext.User.GetId()))
{
input.Message = "Book exists on your wish list";
return(this.View(input));
}
else
{
input.Message = "Book added successfully!";
input.Success = true;
return(this.View(input));
}
}
public async Task <bool> AddBook(AddToWishListViewModel book, Guid?user)
{
WishList userWishList = this.applicationDbContext.WishLists.FirstOrDefault(b => b.UserId == user); // whishlist from current user
if (userWishList == null)
{
userWishList = new WishList()
{
Id = Guid.NewGuid(),
UserId = user.Value
};
this.applicationDbContext.Add(userWishList);
}
book.Name = book.Name.Trim();
Book bok = this.applicationDbContext.Books.FirstOrDefault(b => b.Name == book.Name);
if (bok != null) //book already exists
{
if (await this.applicationDbContext.WishListBooks.AnyAsync(b => b.WishListId == userWishList.Id && b.BookId == bok.Id)) // exists in wishlist? throw error
{
return(false);
}
else // if no, add to wishlist
{
userWishList.WishListBooks.Add(new WishListBook()
{
Id = Guid.NewGuid(),
BookId = bok.Id
});
}
}
else // book doesnt exists, add to Book and wishlist
{
Book bok2 = null;
List <Subject> subjectslist = null;
var bookAPI = await 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);
userWishList.WishListBooks.Add(new WishListBook()
{
Id = Guid.NewGuid(),
BookId = bok.Id
});
}
else //book exists in database
{
if (await this.applicationDbContext.WishListBooks.AnyAsync(b => b.WishListId == userWishList.Id && b.BookId == bok2.Id)) // exists in wishlist? throw error
{
return(false);
}
else // if no, add to wishlist
{
userWishList.WishListBooks.Add(new WishListBook()
{
Id = Guid.NewGuid(),
BookId = bok2.Id
});
}
}
}
await this.applicationDbContext.SaveChangesAsync();
return(true);
}
