public static ConsoleAnswer UserChoice(ConsoleAnswerType type)
{
switch (type)
{
case ConsoleAnswerType.YesNo:
string result = ReadFromConsole("(YES / NO): ").ToString().ToLower();
if (result.ToLower() == "y" || result.ToLower() == "yes")
{
return(ConsoleAnswer.Yes);
}
else if (result.ToLower() == "n" || result.ToLower() == "no")
{
return(ConsoleAnswer.No);
}
else
{
return(UserChoice(type)); // Re ask
}
case ConsoleAnswerType.YesNoCancel:
string result1 = ReadFromConsole("(YES / NO / CANCEL): ").ToString().ToLower();
if (result1.ToLower() == "y" || result1.ToLower() == "yes")
{
return(ConsoleAnswer.Yes);
}
else if (result1.ToLower() == "n" || result1.ToLower() == "no")
{
return(ConsoleAnswer.No);
}
else if (result1.ToLower() == "c" || result1.ToLower() == "cancel")
{
return(ConsoleAnswer.Cancel);
}
else
{
return(UserChoice(type)); // Re ask
}
case ConsoleAnswerType.TrueFalse:
string result2 = ReadFromConsole("(TRUE / FALSE): ").ToString().ToLower();
if (result2.ToLower() == "t" || result2.ToLower() == "true")
{
return(ConsoleAnswer.Yes);
}
else if (result2.ToLower() == "f" || result2.ToLower() == "false")
{
return(ConsoleAnswer.No);
}
else
{
return(UserChoice(type)); // Re ask
}
default:
CFormat.WriteLine("Could not get user choice, specifed answer type does not exist.", ConsoleColor.Red);
return(ConsoleAnswer.Undefined);
}
}
/// <summary>
/// User must make a pick a number between 0 and maxNumber.
/// </summary>
/// <param name="maxNumber"></param>
/// <returns></returns>
public static int UserPickInt(int maxNumber)
{
var pickNumber = ReadFromConsole("Enter a number between 0 and " + maxNumber + ": ", ConsoleInputType.Int, true, ConsoleColor.White, maxNumber.ToString().Length);
if (pickNumber == null)
{
CFormat.WriteLine("Canceled.");
return(-1);
}
if ((int)pickNumber >= 0 && (int)pickNumber <= maxNumber)
{
return((int)pickNumber);
}
else
{
UserPickInt(maxNumber); // re ask
return(-1); // in case of error. Should never reach this point.
}
}
public Task Log(LogMessage arg)
{
CFormat.WriteLine(arg.ToString());
return(Task.CompletedTask);
}
public static object ReadFromConsole(string promptMessage = "", ConsoleInputType inputType = ConsoleInputType.String, bool canEscape = false, ConsoleColor color = ConsoleColor.White, int maxChars = -1, char charMask = Char.MinValue)
{
// set vars
ConsoleColor initialColor = Console.ForegroundColor;
bool maskChars = (charMask != Char.MinValue);
bool pressedEnter = false;
string prompt = (promptMessage == "" ? _readPrompt : promptMessage);
cursorPos = 0;
historyIndex = 0;
_readBuffer = "";
// Show a prompt
Console.ForegroundColor = color;
Console.Write(prompt);
// Get input
while (!pressedEnter)
{
ConsoleKeyInfo key = Console.ReadKey(true);
// ENTER KEY
if (key.Key == ConsoleKey.Enter)
{
ValidateHistory();
AddToHistory(_readBuffer);
Console.ForegroundColor = initialColor;
CFormat.WriteLine("");
if (inputType == ConsoleInputType.String)
{
return(_readBuffer);
}
else if (inputType == ConsoleInputType.Int)
{
return(int.Parse(_readBuffer)); // we can parse safely because input keys were filtered
}
else if (inputType == ConsoleInputType.Double)
{
return(Double.Parse(_readBuffer.Replace(".", ","))); // we can parse safely because input keys were filtered
}
else if (inputType == ConsoleInputType.Ulong)
{
return(ulong.Parse(_readBuffer)); // we can parse safely because input keys were filtered
}
}
// BACKSPACE KEY
else if (key.Key == ConsoleKey.Backspace)
{
ValidateHistory();
if (cursorPos <= 0)
{
continue;
}
if (cursorPos != _readBuffer.Length)
{
string beforeChar = _readBuffer.Substring(0, cursorPos - 1);
string afterChar = _readBuffer.Substring(cursorPos, _readBuffer.Length - cursorPos);
_readBuffer = beforeChar + afterChar;
MoveCursorBack();
UserWrite(afterChar + " ");
for (int i = 0; i < (afterChar.Length + 1); i++)
{
MoveCursorBack();
}
}
else
{
_readBuffer = _readBuffer.Substring(0, _readBuffer.Length - 1);
MoveCursorBack();
UserWrite(" ");
MoveCursorBack();
}
}
// DELETE KEY
else if (key.Key == ConsoleKey.Delete)
{
ValidateHistory();
if (cursorPos >= _readBuffer.Length)
{
continue;
}
string beforeChar = _readBuffer.Substring(0, cursorPos);
string afterChar = _readBuffer.Substring(cursorPos + 1, _readBuffer.Length - cursorPos - 1);
_readBuffer = beforeChar + afterChar;
UserWrite(afterChar + " ");
for (int i = 0; i < (afterChar.Length + 1); i++)
{
MoveCursorBack();
}
}
// DEBUT KEY
else if (key.Key == ConsoleKey.Home)
{
for (int i = cursorPos; i > 0; i--)
{
MoveCursorBack();
}
}
// END KEY
else if (key.Key == ConsoleKey.End)
{
for (int i = cursorPos; i < _readBuffer.Length; i++)
{
MoveCursorAhead();
}
}
// ESCAPE KEY
else if (key.Key == ConsoleKey.Escape)
{
if (canEscape)
{
return(null);
}
}
// INSERT KEY
else if (key.Key == ConsoleKey.Insert)
{
insertMode = !insertMode;
if (insertMode)
{
Console.CursorSize = 100;
}
else
{
Console.CursorSize = 1;
}
}
// Do not seek for specific kees after this line: ---
// ARROW KEYS and WHITE SPACE KEYS
else if (key.Key != ConsoleKey.Spacebar && key.KeyChar == Char.MinValue)
{
if (key.Key == ConsoleKey.RightArrow && cursorPos < _readBuffer.Length)
{
MoveCursorAhead();
}
else if (key.Key == ConsoleKey.LeftArrow && cursorPos > 0)
{
MoveCursorBack();
}
else if (key.Key == ConsoleKey.UpArrow)
{
OlderHistory();
}
else if (key.Key == ConsoleKey.DownArrow)
{
NewerHistory();
}
}
// ANY OTHER KEY
else
{
ValidateHistory();
// MAX CHARS CHECK
if (maxChars > 0 && _readBuffer.Length >= maxChars)
{
continue;
}
// INPUT TYPE CHECK
if (inputType == ConsoleInputType.Int)
{
if (!int.TryParse(key.KeyChar.ToString(), out int temp) &&
(key.KeyChar.ToString() != "-" || (key.KeyChar.ToString() == "-" && _readBuffer.Length != 0)))
// If input is not a number in int mode, continue
{
continue;
}
}
else if (inputType == ConsoleInputType.Double)
{
if (!int.TryParse(key.KeyChar.ToString(), out int temp) &&
(key.KeyChar.ToString() != "." || (key.KeyChar.ToString() == "." && _readBuffer.Contains("."))) &&
(key.KeyChar.ToString() != "-" || (key.KeyChar.ToString() == "-" && (_readBuffer.Length != 0 || _readBuffer.Contains(".")))))
// good luck
{
continue;
}
}
else if (inputType == ConsoleInputType.Ulong)
{
if (!int.TryParse(key.KeyChar.ToString(), out int temp) &&
(key.KeyChar.ToString() != "." || (key.KeyChar.ToString() == "." && _readBuffer.Contains("."))))
// good luck
{
continue;
}
}
if (cursorPos != _readBuffer.Length && !insertMode)
{
_readBuffer = _readBuffer.Substring(0, cursorPos) + key.KeyChar + _readBuffer.Substring(cursorPos, _readBuffer.Length - cursorPos);
}
else if (cursorPos != _readBuffer.Length && insertMode)
{
_readBuffer = _readBuffer.Substring(0, cursorPos) + key.KeyChar + _readBuffer.Substring(cursorPos + 1, _readBuffer.Length - cursorPos - 1);
}
else
{
_readBuffer += key.KeyChar;
}
if (maskChars)
{
UserWrite(charMask.ToString());
}
else
{
UserWrite(key.KeyChar.ToString());
if (cursorPos != _readBuffer.Length && !insertMode)
{
string aheadCursor = _readBuffer.Substring(cursorPos, _readBuffer.Length - cursorPos);
UserWrite(aheadCursor); // Re write text that was ahead cursor
for (int i = 0; i < (aheadCursor.Length); i++)
{
MoveCursorBack();
}
}
}
}
//System.Diagnostics.Debug.WriteLine(_readBuffer);
}
return(null);
}