Racing.java

package racingcar;

import camp.nextstep.edu.missionutils.Console;
import java.util.List;
import java.util.ArrayList;


public class Racing
{
    private final List<Car> cars = new ArrayList<>();
    private int rounds;

    public void start()
    {
        inputCars();
        inputRounds();
        play();
        printWinner();
    }

    private void inputCars()
    {
        System.out.println("경주할 자동차 이름을 입력하세요.(이름은 쉼표(,) 기준으로 구분)");
        String[] names = Console.readLine().split(",");
        for (String name : names)
        {
            cars.add(new Car(name.trim()));
        }
    }

    private void inputRounds()
    {
        System.out.println("시도할 횟수는 몇회인가요?");
        rounds = Integer.parseInt(Console.readLine().trim());
        verificationRound(rounds);
    }

    private void verificationRound(int value)
    {
        if (value <= 0)
        {
            throw new IllegalArgumentException("시도 회수는 1 이상이어야 합니다.");
        }
    }

    private  void play()
    {
        for (int i = 0; i < rounds; i++)
        {
            raceRound();
            printRaceStatus();
        }
    }

    private void raceRound()
    {
        for (Car car : cars)
        {
            car.move();
        }
    }

    private void printRaceStatus()
    {
        for (Car car : cars)
        {
            System.out.println(car.getName() + " : " + "-".repeat(car.getPosition()));
        }
        System.out.println();
    }

    private void printWinner()
    {
        int maxPosition = findMaxPosition();
        List<String> winners = getWinners(maxPosition);
        System.out.println("최종 우승자 : " + String.join(", ", winners));
    }

    private List<String> getWinners(int maxPosition)
    {
        List<String> winners = new ArrayList<>();
        for (Car car : cars)
        {
            if (car.getPosition() == maxPosition)
            {
                winners.add(car.getName());
            }
        }
        return winners;
    }

    private int findMaxPosition()
    {
        int max = 0;
        for (Car car : cars)
        {
            if (car.getPosition() > max)
            {
                max = car.getPosition();
            }
        }
        return max;
    }
}