public void Display(string fileName)
{
_screenController.IsCursorVisible = false;
_screenController.Clear();
_fileReader.Open(fileName);
var lines = _fileReader.ReadLines(_screenController.ScreenHeight - 1);
_screenController.PrintLines(lines);
_screenController.DrawStatusBar();
_screenController.Print($"Viewing: {fileName}", 0, _screenController.ScreenHeight - 1);
while (true)
{
var key = _inputController.ReadKey();
if (key.Key == ConsoleKey.Escape)
{
break;
}
if (key.Key == ConsoleKey.DownArrow)
{
string nextLine = _fileReader.ReadNextLine();
if (nextLine != null)
{
_screenController.ScrollDown(1);
_screenController.Print(nextLine, 0, _screenController.ScreenHeight - 2);
}
}
else if (key.Key == ConsoleKey.UpArrow)
{
_screenController.ScrollUp(1);
string previousLine = _fileReader.ReadPreviousLine();
_screenController.Print(previousLine, 0, 0);
}
}
_screenController.HideStatusBar();
_screenController.IsCursorVisible = true;
_screenController.CursorLeft = 0;
_screenController.CursorTop = _screenController.ScreenHeight;
}