//konstruktor
public CalculatorViewModel()
{
plusCommand = new PlusCommand(this);
minusCommand = new MinusCommand(this);
multiplicationCommand = new MultiplicationCommand(this);
divisionCommand = new DivisionCommand(this);
}
/// <summary>
/// Creates selected command instance
/// </summary>
/// <param name="operation">Operation type</param>
/// <param name="mathUnit">Math unit</param>
/// <returns>Command instance</returns>
public static Command Create(string operation, MathUnit mathUnit)
{
Command command = null;
switch (operation)
{
case "+":
command = new AdditionCommand(mathUnit);
break;
case "-":
command = new SubtractCommand(mathUnit);
break;
case "*":
command = new MultiplicationCommand(mathUnit);
break;
case "/":
command = new DivisionCommand(mathUnit);
break;
case "pow":
command = new PowCommand(mathUnit);
break;
case "extract":
command = new ExtractCommand(mathUnit);
break;
case "round":
command = new RoundCommand(mathUnit);
break;
case "exp":
command = new ExpCommand(mathUnit);
break;
case "log":
command = new LogCommand(mathUnit);
break;
}
return(command);
}
public async Task <IActionResult> Multiplication(MultiplicationCommand multiplicationCommand)
{
return(Ok(await mediator.Send(multiplicationCommand)));
}
