bool AscendingSort(OldBook a, OldBook b) => a > b;
bool DescendingSort(OldBook a, OldBook b) => a < b;
public void Run()
{
// Try loading data
PrintLoadMain();
int choice;
FileStream fs;
do
{
choice = GetChoice();
string filePath;
switch (choice)
{
case 1:
filePath = $"{_currentDir}\\{_fileName}.json";
if (!File.Exists(filePath))
{
Console.WriteLine($"File {filePath} does not exist.");
break;
}
var jsonUtf8Reader = new Utf8JsonReader(File.ReadAllBytes(filePath));
_books = JsonSerializer.Deserialize <SuperList <OldBook> >(ref jsonUtf8Reader, _serializerOptions);
break;
case 2:
filePath = $"{_currentDir}\\{_fileName}.xml";
if (!File.Exists(filePath))
{
Console.WriteLine($"File {filePath} does not exist.");
break;
}
fs = File.OpenRead(filePath);
if (_xmlSerializer.Deserialize(fs) is SuperList <OldBook> booksFromXml)
{
_books = booksFromXml;
}
fs.Close();
break;
case 3:
filePath = $"{_currentDir}\\{_fileName}.bin";
if (!File.Exists(filePath))
{
Console.WriteLine($"File {filePath} does not exist.");
break;
}
fs = File.OpenRead(filePath);
if (_binaryFormatter.Deserialize(fs) is OldBook[] booksFromBinary)
{
_books = new SuperList <OldBook>(booksFromBinary);
}
fs.Close();
break;
case 4:
// Skip load savings phase
break;
}
} while (choice < 1 || choice > 4);
if (choice != 4)
{
Console.Write("Finish loading savings data. Press any key to continue.");
Console.ReadLine();
}
// Assigning events handlers
_books.OnAdd += Book_OnAdd;
_books.OnMutate += Book_OnMutate;
// Run core program
while (true)
{
Console.Clear();
PrintState();
Console.WriteLine("---------");
PrintMainMenu();
choice = GetChoice();
switch (choice)
{
case 1:
Console.WriteLine(_books);
Console.WriteLine("----------------");
Console.Write("Press any key to continue.");
Console.ReadLine();
break;
case 2:
bool isContinue;
var newBooks = new SuperList <OldBook>();
do
{
Console.WriteLine("------------------------");
Console.WriteLine("Please enter book info.");
newBooks.Add(OldBook.Create());
Console.WriteLine("----------");
Console.Write("New book added successfully.");
Console.WriteLine("Do you want to continue adding new book? (Y): Yes; (N): No;");
Console.Write("Your choice: ");
isContinue = Console.ReadLine()?.Trim().ToUpper() == "Y";
} while (isContinue);
_books += newBooks;
Console.Write("Press any key to continue.");
Console.ReadLine();
break;
case 3:
Console.WriteLine("----------");
if (_books.Count == 0)
{
Console.Write("Cannot copy since books list is empty. Press any key to continue.");
}
else
{
_books++;
Console.Write("New book added successfully. Press any key to continue.");
}
Console.ReadLine();
break;
case 4:
_books.BubbleSort(AscendingSort);
Console.WriteLine("Books are ascending sorted by Price. Press any key to continue.");
Console.ReadLine();
break;
case 5:
_books.BubbleSort(DescendingSort);
Console.WriteLine("Books are ascending sorted by Price. Press any key to continue.");
Console.ReadLine();
break;
case 6:
byte[] serialized = JsonSerializer.SerializeToUtf8Bytes(_books, _serializerOptions);
File.WriteAllBytes($"{_currentDir}\\{_fileName}.json", serialized);
Console.WriteLine($"Books are saved in `{_fileName}.json`. Press any key to continue.");
Console.ReadLine();
break;
case 7:
fs = File.Open($"{_currentDir}\\{_fileName}.xml", FileMode.Create);
_xmlSerializer.Serialize(fs, _books);
Console.WriteLine($"Books are saved in `{_fileName}.xml`. Press any key to continue.");
Console.ReadLine();
break;
case 8:
fs = File.Open($"{_currentDir}\\{_fileName}.bin", FileMode.Create);
_binaryFormatter.Serialize(fs, _books.ToArray());
Console.WriteLine($"Books are saved in `{_fileName}.bin`. Press any key to continue.");
Console.ReadLine();
break;
case 9:
Console.WriteLine("Are you sure? (Y): Yes; (N): No;");
Console.Write("Enter: ");
if (Console.ReadLine()?.Trim().ToUpper() == "Y")
{
break;
}
continue;
default:
Console.WriteLine("Unknown option, please try again.");
Console.ReadLine();
break;
}
if (choice == 9)
{
break;
}
}
}
