public void TestCaseAllRemoved()
{
Point[] oldPoints = new Point[] {
new Point(1, 4),
new Point(2, 5),
new Point(2, 3)
};
Point[] newPoints = Array.Empty <Point>();
var differences = DataTools.FindDifferences <Point, Point>(oldPoints, newPoints, (o, n) => o == n);
Assert.IsTrue(
differences.InsertedItems.Count == 0 &&
differences.RemovedItems.Count == 3 &&
differences.StayedItems.Count == 0
);
}
public void TestCaseInserted()
{
Point[] oldPoints = new Point[] {
new Point(1, 4),
new Point(2, 5),
new Point(2, 3)
};
Point[] newPoints = new Point[] {
new Point(1, 4),
new Point(2, 5),
new Point(4, 3)
};
var differences = DataTools.FindDifferences <Point, Point>(oldPoints, newPoints, (o, n) => o == n);
Assert.IsTrue(
differences.InsertedItems.First() == new Point(4, 3) &&
differences.RemovedItems.First() == new Point(2, 3) &&
differences.StayedItems.Count == 2
);
}
public void TestPointsWithSize()
{
Point[] oldPoints = new Point[] {
new Point(1, 4),
new Point(2, 5),
new Point(2, 3)
};
Size[] newPoints = new Size[] {
new Size(1, 4),
new Size(2, 5),
new Size(4, 3)
};
var differences = DataTools.FindDifferences <Point, Size>(oldPoints, newPoints, (o, n) => o.Equals(new Point(n)));
Assert.IsTrue(
differences.InsertedItems.First() == new Size(4, 3) &&
differences.RemovedItems.First() == new Point(2, 3) &&
differences.StayedItems.Count == 2
);
}
public async Task <IActionResult> Create([ModelBinder(typeof(BookModelBinder))] BookUpsertDTO book)
{
_Logger.LogTrace("Attempt to create the book");
try {
if (book == null)
{
return(BookBadRequest("Attempt to insert empty book"));
}
if (!ModelState.IsValid)
{
return(BookBadRequest("Attempt to insert the invalid book", ModelState));
}
Task <ImageData> imageUpload = null;
CancellationTokenSource cts = null;
if (book.ImageWasChanged)
{
cts = new CancellationTokenSource();
imageUpload = _ImageService.SetImage(book.Image, cts.Token, String.Empty);
book.Image = String.Empty;
}
var user = await _SignInManager.UserManager.FindByEmailAsync(this.GetCurrentUserEmail());
Book bookRecord = _Mapper.Map <Book>(book);
bookRecord.OwnerId = user.Id;
var differences = DataTools.FindDifferences <BookAuthor, AuthorUpsertDTO>(
bookRecord.BookAuthors, book.Authors, (old, nw) => old.AuthorId == nw.Id);
foreach (var inserted in differences.InsertedItems)
{
Author author = await _BookStore.Authors.FindAsync(x => x.Id == inserted.Id);
if (author != null)
{
bookRecord.BookAuthors.Add(new BookAuthor()
{
AuthorId = inserted.Id, Author = author, Book = bookRecord
});
}
else
{
cts?.Cancel();
return(StatusCode(StatusCodes.Status422UnprocessableEntity, "One of the book authors not exists in database, operation cancelled"));
}
}
foreach (var removed in differences.RemovedItems)
{
bookRecord.BookAuthors.Remove(removed);
}
if (imageUpload != null)
{
ImageData imageData = await imageUpload;
bookRecord.Image = imageData.Name;
bookRecord.Thumbnail = imageData.Base64ThumbNail;
}
bool result = await _BookStore.Books.CreateAsync(bookRecord);
result &= await _BookStore.SaveData();
if (result)
{
_Logger.LogInformation($"Book succesfully created, assigned id {bookRecord.Id}");
return(StatusCode(StatusCodes.Status201Created, bookRecord));
}
else
{
return(InternalError("Failed to create book"));
}
}
catch (AggregateException e) {
_Logger.LogError(e.Flatten(), e.Flatten().Message, e.Flatten().InnerExceptions?.Select(ie => $"{ie.Message}/n{new string('-', 20)}/n{ie.StackTrace}"));
return(InternalError("Failed to create the book", e));
}
catch (Exception e) {
_Logger.LogError(e, e.Message);
return(InternalError("Failed to create bool", e));
}
}
public async Task <IActionResult> Update(int bookId, [ModelBinder(typeof(BookModelBinder))] BookUpsertDTO book)
{
_Logger.LogInformation("Attempting to update book");
try {
if (book == null)
{
return(BookBadRequest("Book object must be not empty"));
}
if (bookId <= 0)
{
return(BookBadRequest($"Book id you provided ({bookId}) is inferior of 0 and not exists in database"));
}
if (!ModelState.IsValid)
{
return(BookBadRequest("Book data not passed the validation", ModelState));
}
var user = await _SignInManager.UserManager.FindByEmailAsync(this.GetCurrentUserEmail());
var isUserAdministrator = await _SignInManager.UserManager.IsInRoleAsync(user, AppDataSeeder.Administrator);
var srcBook = await _BookStore.Books.FindAsync(idPredicate : (x) => x.Id == bookId,
includes : new Expression <Func <Book, object> >[] { x => x.BookAuthors });
if (srcBook == null)
{
return(BookNotFound($"Book id you provided ({bookId}) not found and can not be updated"));
}
if (!(srcBook.OwnerId == user.Id || isUserAdministrator))
{
_Logger.LogWarning($"{user.Email} tried edit others book");
return(StatusCode(StatusCodes.Status403Forbidden, "Cant edit other's record"));
}
Task <ImageData> imageTask = null;
CancellationTokenSource cancellationTokenSource = null;
string originalImageName = srcBook.Image;
if (book.ImageWasChanged)
{
cancellationTokenSource = new CancellationTokenSource();
imageTask = _ImageService.SetImage(book.Image, cancellationTokenSource.Token, srcBook.Image);
book.Image = srcBook.Image;
}
else
{
book.Image = srcBook.Image;
}
#region Updating authors list
var differences = DataTools.FindDifferences <BookAuthor, AuthorUpsertDTO>(
srcBook.BookAuthors, book.Authors, (old, nw) => old.AuthorId == nw.Id);
foreach (var inserted in differences.InsertedItems)
{
Author author = await _BookStore.Authors.FindAsync(x => x.Id == inserted.Id);
if (author != null)
{
srcBook.BookAuthors.Add(new BookAuthor()
{
AuthorId = inserted.Id, Author = author, Book = srcBook, BookId = srcBook.Id
});
}
else
{
cancellationTokenSource?.Cancel();
return(StatusCode(StatusCodes.Status422UnprocessableEntity, "One of the book authors not exists in database, operation cancelled"));
}
}
foreach (var removed in differences.RemovedItems)
{
srcBook.BookAuthors.Remove(removed);
}
srcBook = _Mapper.Map <BookUpsertDTO, Book>(book, srcBook);
#endregion
if (imageTask != null)
{
var imageData = await imageTask;
srcBook.Image = imageData.Name;
srcBook.Thumbnail = imageData.Base64ThumbNail;
}
bool result = await _BookStore.Books.UpdateAsync(srcBook);
result &= await _BookStore.SaveData();
if (result)
{
_Logger.LogTrace("Book id {bookId} was updated in the database");
return(StatusCode(StatusCodes.Status200OK, srcBook));
}
else
{
return(InternalError($"Failed to update book {bookId}"));
}
}
catch (Exception e) {
return(InternalError("Failed to update the book", e));
}
}
public async Task <IActionResult> Update(int authorId, [ModelBinder(typeof(AuthorModelBinder))] AuthorUpsertDTO author)
{
try {
_Logger.LogTrace($"Author {authorId} attempt");
if (author == null)
{
_Logger.LogTrace($"Author {authorId} attempt");
return(StatusCode(StatusCodes.Status400BadRequest, "Empty objecy is not allowed"));
}
if (!ModelState.IsValid)
{
return(StatusCode(StatusCodes.Status400BadRequest, ModelState));
}
var authorToUpdate = await _BookStore.Authors.FindAsync(
idPredicate : (x) => x.Id == authorId,
includes : new Expression <Func <Author, object> >[] { x => x.Books });
if (authorToUpdate == null)
{
return(NotFound($"Unable to find author to update"));
}
var user = await _SignInManager.UserManager.FindByEmailAsync(this.GetCurrentUserEmail());
var isUserAdmin = await _SignInManager.UserManager.IsInRoleAsync(user, AppDataSeeder.Administrator);
if (!(authorToUpdate.OwnerId == user.Id || isUserAdmin))
{
_Logger.LogWarning($"{user.Email} tried edit others author");
return(StatusCode(StatusCodes.Status403Forbidden, "Cant edit other's record"));
}
var differences = DataTools.FindDifferences <Book, BookUpsertDTO>(
authorToUpdate.Books, author.Books, (o, n) => o.Id == n.Id);
if (differences.InsertedItems?.Count > 0)
{
foreach (var newAuthorBook in differences.InsertedItems)
{
var authorBook = await _BookStore.Books.FindAsync(b => b.Id == newAuthorBook.Id);
if (authorBook != null)
{
authorToUpdate.AuthorBooks.Add(new BookAuthor()
{
Author = authorToUpdate, AuthorId = authorToUpdate.Id, BookId = authorBook.Id, Book = authorBook
});
}
else
{
string message = $"Failed to find book with id {newAuthorBook.Id}";
_Logger.LogWarning(message);
return(StatusCode(StatusCodes.Status422UnprocessableEntity, message));
}
}
foreach (var removedAuthorBook in differences.RemovedItems)
{
authorToUpdate.Books.Remove(removedAuthorBook);
}
}
authorToUpdate = _Mapper.Map <AuthorUpsertDTO, Author>(author, authorToUpdate);
bool succeed = await _BookStore.Authors.UpdateAsync(authorToUpdate);
succeed &= await _BookStore.SaveData();
if (succeed)
{
return(StatusCode(StatusCodes.Status200OK, _Mapper.Map <AuthorUpsertDTO>(authorToUpdate)));
}
else
{
return(StatusCode(StatusCodes.Status500InternalServerError, "Unexpected error while updating the author"));
}
}
catch (Exception e) {
return(InternalError(e, "Unexpected error while updating the author"));
}
}
public async Task <IActionResult> Create([ModelBinder(typeof(AuthorModelBinder))] AuthorUpsertDTO author)
{
_Logger.LogInformation($"Author submition");
try {
if (author == null)
{
_Logger.LogWarning($"Empty request was submited");
return(StatusCode(StatusCodes.Status400BadRequest));
}
if (!ModelState.IsValid)
{
_Logger.LogWarning(
$"Attempting to submit invalid data: {ModelState.Values.SelectMany(x => x.Errors).Select(e => e.ErrorMessage).Aggregate((fm, lm) => fm + '\n' + lm)}");
return(BadRequest(ModelState));
}
var user = await _SignInManager.UserManager.FindByEmailAsync(this.GetCurrentUserEmail());
var similarAuthors = await _BookStore.Authors.WhereAsync(filter : x =>
x.Firstname.ToLower().Equals(author.Firstname.ToLower()) &&
x.Lastname.ToLower().Equals(author.Firstname.ToLower()) &&
x.OwnerId == user.Id
);
if (similarAuthors.Count > 0)
{
_Logger.LogWarning($"Possible duplicate for author {author.Firstname} {author.Lastname.ToUpper()}");
}
Author writer = _Mapper.Map <Author>(author);
writer.OwnerId = user.Id;
var differences = DataTools.FindDifferences <Book, BookUpsertDTO>(
writer.Books, author.Books, (o, n) => o.Id == n.Id);
if (differences.InsertedItems?.Count > 0)
{
foreach (var newAuthorBook in differences.InsertedItems)
{
var authorBook = await _BookStore.Books.FindAsync(b => b.Id == newAuthorBook.Id);
if (authorBook != null)
{
writer.AuthorBooks.Add(new BookAuthor()
{
Author = writer, BookId = authorBook.Id, Book = authorBook
});
}
else
{
string message = $"Failed to find book with id {newAuthorBook.Id}";
_Logger.LogWarning(message);
return(StatusCode(StatusCodes.Status422UnprocessableEntity, message));
}
}
}
var isSucceed = await _BookStore.Authors.CreateAsync(writer);
isSucceed &= await _BookStore.SaveData();
if (!isSucceed)
{
_Logger.LogError("No records was inserted to database when creating the author");
return(StatusCode(StatusCodes.Status500InternalServerError, "Failed to save author"));
}
else
{
_Logger.LogInformation("Author creates successfully");
return(Created("Create", _Mapper.Map <AuthorUpsertDTO>(writer)));
}
}
catch (Exception e) {
return(InternalError(e, $"Unable to create author {author.Firstname} {author.Lastname}"));
}
}
