RatulSaqibKhan/emoji-calculator-laravel

class CalculateResultAction
{
    protected $request;

    public function __construct($request)
    {
        $this->request = $request;
    }

    public function action()
    {
        $number1 = $this->request->input1;
        $number2 = $this->request->input2;
        $operand = $this->request->operand; // addition, subtraction, multiplication, division

        return $this->{$operand}($number1, $number2);
    }

    private function addition($number1, $number2) : float
    {
        return (float)($number1 + $number2);
    }

    private function subtraction($number1, $number2) : float
    {
        return (float)($number1 - $number2);
    }

    private function multiplication($number1, $number2) : float
    {
        return (float)($number1 * $number2);
    }

    private function division($number1, $number2)
    {
        return $number2 != 0 ? round($number1 / $number2, 5) : 'Division by Zero';
    }
}

use App\Http\Actions\CalculateResultAction;
use App\Http\Requests\CalculatorRequest;
use Exception;
use Illuminate\Http\JsonResponse;

class CalculatorController extends Controller
{
    //
    public function calculate(CalculatorRequest $request): JsonResponse
    {
        try {
            $result = (new CalculateResultAction($request))->action();
            $status = 200;
            $error = null;
            $message = 'Success!';
        } catch (Exception $e) {
            $result = null;
            $status = 500;
            $error = $e->getMessage;
            $message = 'Something went wrong!';
        }

        return response()->json([
            'result' => $result,
            'error' => $error,
            'message' => $message
        ], $status);
    }
}