package HW26Lesson16;

import java.io.IOException;
import java.util.Scanner;

import static Lesson11HWCAlc.Calc.getNum;

public class Logic {
    static Scanner scanner = new Scanner(System.in);

    static void main(String[] args) {
        try {
            int num1 = getNum();
            int num2 = getNum();
            Methods operation = getOperation();
            int result = result(num1, num2, operation);
            System.out.println("Результат операции: " + result);
        } catch (ArithmeticException e) {
            System.err.println("На ноль делить нельзя!");
        }
    }

    static int getNum() {
        System.out.println("Введите число:");
        int num;
        if (scanner.hasNextInt()) {
            num = scanner.nextInt();
        } else {
            System.out.println("Вы допустили ошибку при вводе числа. Попробуйте еще раз.");
            scanner.next();
            num = getNum();
        }
        return num;
    }

    static Methods getOperation() {
        Scanner sc = new Scanner(System.in);
        Methods operation;
        System.out.println("Введите операцию:");

        String tmp = sc.nextLine();
        switch (tmp) {
            case "+":
                operation = Methods.PLUS;
                break;

            case "-":
                operation = Methods.MINUS;
                break;

            case "*":
                operation = Methods.MULTIPLY;
                break;

            case "/":
                operation = Methods.DIVIDE;
                break;
            default:
                System.out.println("Вы допустили ошибку при вводе операции.");
                operation = Methods.WTF;

        }
        return operation;
    }


    static int result(int num1, int num2, Methods operation) {
        int result;


        switch (operation) {
            case PLUS:
                result = num1 + num2;
                break;
            case MINUS:
                result = num1 - num2;
                break;
            case MULTIPLY:
                result = num1 * num2;
                break;
            case DIVIDE:
                result = num1 / num2;
                break;
            default:
                System.out.println("Операция не распознана.");
                result = result(num1, num2, getOperation());
        }
        return result;
    }
}