From fb6f312cc3641e0da61b17a8aa8008bab5c209c8 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:06:17 +0900
Subject: [PATCH 01/21] =?UTF-8?q?docs:=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84=20=EB=AA=A9=EB=A1=9D=20=EC=9E=91=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/docs/README.md b/docs/README.md
index e69de29bb2..aae6ad3ee0 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -0,0 +1,37 @@
+# 💪 프로젝트 개요
+
+컴퓨터가 생성한 숫자를 맞추기 위해 플레이어가 숫자를 입력한다.
+컴퓨터는 플레이어의 숫자에 대해 스트라이크, 볼, 낫싱으로 힌트를 제공한다.
+
+# 📝 구현 기능 목록
+
+### 컴퓨터가 숫자를 생성하는 기능
+
+- [ ] `숫자 야구 게임을 시작합니다.`를 출력한다.
+- [ ] 1부터 9까지의 숫자 세 개를 생성한다.
+
+### 플레이어가 숫자를 입력하는 기능
+
+- [ ] `숫자를 입력해주세요 : `를 출력한다.
+- [ ] 숫자를 입력받는다.
+    - [ ] 빈 문자열이 아님을 검증한다.
+    - [ ] 길이가 3인 문자열임을 검증한다.
+    - [ ] 숫자로 이루어진 문자열임을 검증한다.
+    - [ ] 숫자가 1 이상, 9 이하임을 검증한다.
+    - [ ] 서로 다른 숫자임을 검증한다.
+
+### 힌트를 생성하는 기능
+
+- [ ] 컴퓨터에 저장한 숫자와 입력된 숫자를 비교한다.
+- [ ] 스트라이크와 볼 개수를 계산하여 반환한다.
+
+### 힌트를 출력하는 기능
+
+- [ ] `1볼 1스트라이크`와 같이 볼 개수와 스트라이크 개수를 출력한다.
+
+### 게임을 새로 시작하거나 종료하는 기능
+
+- [ ] 스트라이크가 3인 경우 게임을 종료한다.
+    - [ ] `3개의 숫자를 모두 맞히셨습니다! 게임 종료 \n 게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.`를 출력한다.
+    - [ ] 1 혹은 2의 입력을 받는다.
+- [ ] 입력에 따라 게임을 새로 시작하거나 종료한다.

From c4397fbb293631cf00fe23a80a9b4cf0791ce23c Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:06:42 +0900
Subject: [PATCH 02/21] =?UTF-8?q?feat:=20=EC=BD=98=EC=86=94=EC=97=90=20?=
 =?UTF-8?q?=EC=B6=9C=EB=A0=A5=ED=95=98=EA=B8=B0=20=EC=9C=84=ED=95=9C=20?=
 =?UTF-8?q?=ED=81=B4=EB=9E=98=EC=8A=A4=20=EC=83=9D=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../baseball/view/console/ConsoleReader.java  | 24 +++++++++++++++++++
 .../baseball/view/console/ConsoleWriter.java  | 15 ++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 src/main/java/baseball/view/console/ConsoleReader.java
 create mode 100644 src/main/java/baseball/view/console/ConsoleWriter.java

diff --git a/src/main/java/baseball/view/console/ConsoleReader.java b/src/main/java/baseball/view/console/ConsoleReader.java
new file mode 100644
index 0000000000..eecad34e25
--- /dev/null
+++ b/src/main/java/baseball/view/console/ConsoleReader.java
@@ -0,0 +1,24 @@
+package baseball.view.console;
+
+import baseball.global.exception.CustomException;
+import baseball.global.exception.ErrorMessage;
+import camp.nextstep.edu.missionutils.Console;
+
+public final class ConsoleReader {
+    public static String enterMessage() {
+        return Validator.validate(Console.readLine());
+    }
+
+    private static class Validator {
+        public static String validate(String message) {
+            validateBlankInput(message);
+            return message;
+        }
+
+        private static void validateBlankInput(String message) {
+            if (message.isBlank()) {
+                throw CustomException.from(ErrorMessage.BLANK_INPUT_ERROR);
+            }
+        }
+    }
+}
diff --git a/src/main/java/baseball/view/console/ConsoleWriter.java b/src/main/java/baseball/view/console/ConsoleWriter.java
new file mode 100644
index 0000000000..4e695bd82b
--- /dev/null
+++ b/src/main/java/baseball/view/console/ConsoleWriter.java
@@ -0,0 +1,15 @@
+package baseball.view.console;
+
+public final class ConsoleWriter {
+    public static void printMessage(String message) {
+        System.out.print(message);
+    }
+
+    public static void printlnMessage(String message) {
+        System.out.println(message);
+    }
+
+    public static void printlnFormat(String message, Object... args) {
+        printlnMessage(String.format(message, args));
+    }
+}

From d504a069b46fca8d313b47b7de4bc76b0527292c Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:07:02 +0900
Subject: [PATCH 03/21] =?UTF-8?q?feat:=20=EC=BB=A4=EC=8A=A4=ED=85=80=20?=
 =?UTF-8?q?=EC=98=88=EC=99=B8=20=EC=B2=98=EB=A6=AC=20=ED=81=B4=EB=9E=98?=
 =?UTF-8?q?=EC=8A=A4=20=EC=83=9D=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../global/exception/CustomException.java         | 13 +++++++++++++
 .../baseball/global/exception/ErrorMessage.java   | 15 +++++++++++++++
 2 files changed, 28 insertions(+)
 create mode 100644 src/main/java/baseball/global/exception/CustomException.java
 create mode 100644 src/main/java/baseball/global/exception/ErrorMessage.java

diff --git a/src/main/java/baseball/global/exception/CustomException.java b/src/main/java/baseball/global/exception/CustomException.java
new file mode 100644
index 0000000000..138a9b9ee2
--- /dev/null
+++ b/src/main/java/baseball/global/exception/CustomException.java
@@ -0,0 +1,13 @@
+package baseball.global.exception;
+
+public class CustomException extends IllegalArgumentException {
+    private static final String PREFIX = "[ERROR] ";
+
+    private CustomException(ErrorMessage errorMessage) {
+        super(PREFIX + errorMessage.getMessage());
+    }
+
+    public static CustomException from(ErrorMessage errorMessage) {
+        return new CustomException(errorMessage);
+    }
+}
diff --git a/src/main/java/baseball/global/exception/ErrorMessage.java b/src/main/java/baseball/global/exception/ErrorMessage.java
new file mode 100644
index 0000000000..d1bff88deb
--- /dev/null
+++ b/src/main/java/baseball/global/exception/ErrorMessage.java
@@ -0,0 +1,15 @@
+package baseball.global.exception;
+
+public enum ErrorMessage {
+    BLANK_INPUT_ERROR("빈 문자열이 입력되었습니다."),
+
+    private final String message;
+
+    ErrorMessage(String message) {
+        this.message = message;
+    }
+
+    public String getMessage() {
+        return this.message;
+    }
+}

From b8c8715abe99a826ffd67bbdebf14c02adda4838 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:08:10 +0900
Subject: [PATCH 04/21] =?UTF-8?q?feat:=20=EA=B2=8C=EC=9E=84=EC=9D=84=20?=
 =?UTF-8?q?=EC=8B=9C=EC=9E=91=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                |  2 +-
 .../java/baseball/controller/GameManager.java | 19 +++++++++++++++++++
 src/main/java/baseball/view/OutputView.java   | 15 +++++++++++++++
 3 files changed, 35 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/baseball/controller/GameManager.java
 create mode 100644 src/main/java/baseball/view/OutputView.java

diff --git a/docs/README.md b/docs/README.md
index aae6ad3ee0..b7b7718785 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -7,7 +7,7 @@
 
 ### 컴퓨터가 숫자를 생성하는 기능
 
-- [ ] `숫자 야구 게임을 시작합니다.`를 출력한다.
+- [x] `숫자 야구 게임을 시작합니다.`를 출력한다.
 - [ ] 1부터 9까지의 숫자 세 개를 생성한다.
 
 ### 플레이어가 숫자를 입력하는 기능
diff --git a/src/main/java/baseball/controller/GameManager.java b/src/main/java/baseball/controller/GameManager.java
new file mode 100644
index 0000000000..57d57ac7d5
--- /dev/null
+++ b/src/main/java/baseball/controller/GameManager.java
@@ -0,0 +1,19 @@
+package baseball.controller;
+
+import baseball.domain.Computer;
+import baseball.view.InputView;
+import baseball.view.OutputView;
+
+public class GameManager {
+    private final InputView inputView;
+    private final OutputView outputView;
+    private final Computer computer;
+
+    public GameManager() {
+        this.inputView = new InputView();
+        this.outputView = new OutputView();
+        this.outputView.start();
+        this.computer = new Computer();
+    }
+
+}
diff --git a/src/main/java/baseball/view/OutputView.java b/src/main/java/baseball/view/OutputView.java
new file mode 100644
index 0000000000..2c3ae9ba9d
--- /dev/null
+++ b/src/main/java/baseball/view/OutputView.java
@@ -0,0 +1,15 @@
+package baseball.view;
+
+import baseball.view.console.ConsoleWriter;
+
+public class OutputView {
+    private static final String BALL = "%d볼";
+    private static final String STRIKE = "%d스트라이크";
+    private static final String BOTH = "%s %s";
+    private static final String NOTHING = "낫싱";
+
+    public void start() {
+        ConsoleWriter.printlnMessage("숫자 야구 게임을 시작합니다.");
+    }
+
+}

From 6cf7c04b7cd4b8e1d0d2bfd47568290daf854991 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:09:09 +0900
Subject: [PATCH 05/21] =?UTF-8?q?feat:=20=EC=88=AB=EC=9E=90=EB=A5=BC=20?=
 =?UTF-8?q?=EC=84=B8=20=EA=B0=9C=20=EC=83=9D=EC=84=B1=ED=95=98=EC=97=AC=20?=
 =?UTF-8?q?=EC=BB=B4=ED=93=A8=ED=84=B0=EC=97=90=20=EC=A0=80=EC=9E=A5?=
 =?UTF-8?q?=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                                 |  2 +-
 src/main/java/baseball/domain/Computer.java    | 13 +++++++++++++
 .../global/util/RandomNumberGenerator.java     | 18 ++++++++++++++++++
 3 files changed, 32 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/baseball/domain/Computer.java
 create mode 100644 src/main/java/baseball/global/util/RandomNumberGenerator.java

diff --git a/docs/README.md b/docs/README.md
index b7b7718785..70bb920690 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -8,7 +8,7 @@
 ### 컴퓨터가 숫자를 생성하는 기능
 
 - [x] `숫자 야구 게임을 시작합니다.`를 출력한다.
-- [ ] 1부터 9까지의 숫자 세 개를 생성한다.
+- [x] 1부터 9까지의 숫자 세 개를 생성한다.
 
 ### 플레이어가 숫자를 입력하는 기능
 
diff --git a/src/main/java/baseball/domain/Computer.java b/src/main/java/baseball/domain/Computer.java
new file mode 100644
index 0000000000..565dcd5756
--- /dev/null
+++ b/src/main/java/baseball/domain/Computer.java
@@ -0,0 +1,13 @@
+package baseball.domain;
+
+import baseball.global.util.RandomNumberGenerator;
+import java.util.List;
+
+public class Computer {
+    private final List<Integer> numbers;
+
+    public Computer() {
+        this.numbers = RandomNumberGenerator.generateRandomNumber();
+    }
+
+}
diff --git a/src/main/java/baseball/global/util/RandomNumberGenerator.java b/src/main/java/baseball/global/util/RandomNumberGenerator.java
new file mode 100644
index 0000000000..8b9c48956e
--- /dev/null
+++ b/src/main/java/baseball/global/util/RandomNumberGenerator.java
@@ -0,0 +1,18 @@
+package baseball.global.util;
+
+import camp.nextstep.edu.missionutils.Randoms;
+import java.util.ArrayList;
+import java.util.List;
+
+public class RandomNumberGenerator {
+    public static List<Integer> generateRandomNumber() {
+        List<Integer> computer = new ArrayList<>();
+        while (computer.size() < 3) {
+            int randomNumber = Randoms.pickNumberInRange(1, 9);
+            if (!computer.contains(randomNumber)) {
+                computer.add(randomNumber);
+            }
+        }
+        return computer;
+    }
+}

From 376503a86e80f29a2e647c656819753239724ddd Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:09:57 +0900
Subject: [PATCH 06/21] =?UTF-8?q?feat:=20=ED=94=8C=EB=A0=88=EC=9D=B4?=
 =?UTF-8?q?=EC=96=B4=EA=B0=80=20=EC=88=AB=EC=9E=90=EB=A5=BC=20=EC=9E=85?=
 =?UTF-8?q?=EB=A0=A5=ED=95=98=EA=B3=A0=20=EA=B2=80=EC=A6=9D=ED=95=98?=
 =?UTF-8?q?=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                             | 14 ++---
 src/main/java/baseball/view/InputView.java | 66 ++++++++++++++++++++++
 2 files changed, 73 insertions(+), 7 deletions(-)
 create mode 100644 src/main/java/baseball/view/InputView.java

diff --git a/docs/README.md b/docs/README.md
index 70bb920690..354eda4eae 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -12,13 +12,13 @@
 
 ### 플레이어가 숫자를 입력하는 기능
 
-- [ ] `숫자를 입력해주세요 : `를 출력한다.
-- [ ] 숫자를 입력받는다.
-    - [ ] 빈 문자열이 아님을 검증한다.
-    - [ ] 길이가 3인 문자열임을 검증한다.
-    - [ ] 숫자로 이루어진 문자열임을 검증한다.
-    - [ ] 숫자가 1 이상, 9 이하임을 검증한다.
-    - [ ] 서로 다른 숫자임을 검증한다.
+- [x] `숫자를 입력해주세요 : `를 출력한다.
+- [x] 숫자를 입력받는다.
+    - [x] 빈 문자열이 아님을 검증한다.
+    - [x] 길이가 3인 문자열임을 검증한다.
+    - [x] 숫자로 이루어진 문자열임을 검증한다.
+    - [x] 숫자가 1 이상, 9 이하임을 검증한다.
+    - [x] 서로 다른 숫자임을 검증한다.
 
 ### 힌트를 생성하는 기능
 
diff --git a/src/main/java/baseball/view/InputView.java b/src/main/java/baseball/view/InputView.java
new file mode 100644
index 0000000000..1c5cde3903
--- /dev/null
+++ b/src/main/java/baseball/view/InputView.java
@@ -0,0 +1,66 @@
+package baseball.view;
+
+import baseball.domain.GameCommand;
+import baseball.global.exception.CustomException;
+import baseball.global.exception.ErrorMessage;
+import baseball.global.validator.Validator;
+import baseball.view.console.ConsoleReader;
+import baseball.view.console.ConsoleWriter;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+public class InputView {
+    public List<Integer> enterNumbers() {
+        ConsoleWriter.printMessage("숫자를 입력해주세요 : ");
+        return validateNumbers(ConsoleReader.enterMessage());
+    }
+
+    private List<Integer> validateNumbers(String message) {
+        validateLength(message);
+        List<String> numbers = parseStringToList(message, "");
+        validateDuplicated(numbers);
+        List<Integer> result = new ArrayList<>();
+        for (String number : numbers) {
+            int value = Validator.validateNumber(message);
+            Validator.validateRange(value, 1, 9);
+            result.add(value);
+        }
+        return result;
+    }
+
+    private void validateLength(String message) {
+        if (message.length() != 3) {
+            throw CustomException.from(ErrorMessage.INVALID_NUMBER_ERROR);
+        }
+    }
+
+    private static List<String> parseStringToList(String message, String separator) {
+        return Arrays.stream(split(message, separator)).toList();
+    }
+
+    private static String[] split(String message, String separator) {
+        return message.split(separator, -1);
+    }
+
+    private static void validateDuplicated(List<String> items) {
+        if (hasDuplicatedItem(items)) {
+            throw CustomException.from(ErrorMessage.INVALID_NUMBER_ERROR);
+        }
+    }
+
+    private static boolean hasDuplicatedItem(List<String> items) {
+        return items.size() != calculateUniqueItemsCount(items);
+    }
+
+    private static int calculateUniqueItemsCount(List<String> items) {
+        return (int) items.stream()
+                .distinct()
+                .count();
+    }
+
+    public GameCommand enterRestartOrQuit() {
+        ConsoleWriter.printlnMessage("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
+        return GameCommand.from(ConsoleReader.enterMessage());
+    }
+}

From bbb317b94a4edc4c1f188e6464152ed9a110fc36 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:10:16 +0900
Subject: [PATCH 07/21] =?UTF-8?q?feat:=20=ED=9E=8C=ED=8A=B8=EB=A5=BC=20?=
 =?UTF-8?q?=EC=83=9D=EC=84=B1=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                              |  4 ++--
 src/main/java/baseball/domain/Computer.java | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/docs/README.md b/docs/README.md
index 354eda4eae..de7e7656ca 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -22,8 +22,8 @@
 
 ### 힌트를 생성하는 기능
 
-- [ ] 컴퓨터에 저장한 숫자와 입력된 숫자를 비교한다.
-- [ ] 스트라이크와 볼 개수를 계산하여 반환한다.
+- [x] 컴퓨터에 저장한 숫자와 입력된 숫자를 비교한다.
+- [x] 스트라이크와 볼 개수를 계산하여 반환한다.
 
 ### 힌트를 출력하는 기능
 
diff --git a/src/main/java/baseball/domain/Computer.java b/src/main/java/baseball/domain/Computer.java
index 565dcd5756..409666d211 100644
--- a/src/main/java/baseball/domain/Computer.java
+++ b/src/main/java/baseball/domain/Computer.java
@@ -10,4 +10,24 @@ public Computer() {
         this.numbers = RandomNumberGenerator.generateRandomNumber();
     }
 
+    public HintResult generateHintResult(List<Integer> givenNumbers) {
+        int strike = 0;
+        int ball = 0;
+        for (int i = 0; i < numbers.size(); i++) {
+            if (numbers.get(i) == givenNumbers.get(i)) {
+                strike++;
+            }
+            ball += isBallIndex(i, givenNumbers);
+        }
+        return new HintResult(strike, ball);
+    }
+
+    private int isBallIndex(int i, List<Integer> givenNumbers) {
+        for (int j = 0; j < givenNumbers.size(); j++) {
+            if (i != j && numbers.get(i) == givenNumbers.get(j)) {
+                return 1;
+            }
+        }
+        return 0;
+    }
 }

From df056dd1e95ad308b6abe24fd103be1c8eb09f1c Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:10:40 +0900
Subject: [PATCH 08/21] =?UTF-8?q?feat:=20=ED=9E=8C=ED=8A=B8=EB=A5=BC=20?=
 =?UTF-8?q?=EC=B6=9C=EB=A0=A5=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20?=
 =?UTF-8?q?=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md                              |  2 +-
 src/main/java/baseball/view/OutputView.java | 28 +++++++++++++++++++++
 2 files changed, 29 insertions(+), 1 deletion(-)

diff --git a/docs/README.md b/docs/README.md
index de7e7656ca..241d3d4b16 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -27,7 +27,7 @@
 
 ### 힌트를 출력하는 기능
 
-- [ ] `1볼 1스트라이크`와 같이 볼 개수와 스트라이크 개수를 출력한다.
+- [x] `1볼 1스트라이크`와 같이 볼 개수와 스트라이크 개수를 출력한다.
 
 ### 게임을 새로 시작하거나 종료하는 기능
 
diff --git a/src/main/java/baseball/view/OutputView.java b/src/main/java/baseball/view/OutputView.java
index 2c3ae9ba9d..8d132e9cec 100644
--- a/src/main/java/baseball/view/OutputView.java
+++ b/src/main/java/baseball/view/OutputView.java
@@ -1,5 +1,6 @@
 package baseball.view;
 
+import baseball.domain.HintResult;
 import baseball.view.console.ConsoleWriter;
 
 public class OutputView {
@@ -12,4 +13,31 @@ public void start() {
         ConsoleWriter.printlnMessage("숫자 야구 게임을 시작합니다.");
     }
 
+    public void printHintResult(HintResult hintResult) {
+        int strike = hintResult.strike();
+        int ball = hintResult.ball();
+
+        ConsoleWriter.printlnMessage(generateResultMessage(strike, ball));
+    }
+
+    public String generateResultMessage(int strike, int ball) {
+        if (strike != 0 && ball != 0) {
+            return String.format(
+                    BOTH,
+                    String.format(BALL, ball),
+                    String.format(STRIKE, strike)
+            );
+        }
+        if (ball != 0) {
+            return String.format(BALL, ball);
+        }
+        if (strike != 0) {
+            return String.format(STRIKE, strike);
+        }
+        return NOTHING;
+    }
+
+    public void printGameOver() {
+        ConsoleWriter.printlnMessage("3개의 숫자를 모두 맞히셨습니다! 게임 종료");
+    }
 }

From 233a282591bac576dfa2402eefb855ea088d5aab Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:11:09 +0900
Subject: [PATCH 09/21] =?UTF-8?q?feat:=20=EA=B2=8C=EC=9E=84=EC=9D=84=20?=
 =?UTF-8?q?=EA=B3=84=EC=86=8D=20=EC=A7=84=ED=96=89=ED=95=98=EA=B8=B0=20?=
 =?UTF-8?q?=EC=9C=84=ED=95=9C=20=EB=B0=98=EB=B3=B5=EB=AC=B8=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/baseball/controller/GameManager.java  | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/src/main/java/baseball/controller/GameManager.java b/src/main/java/baseball/controller/GameManager.java
index 57d57ac7d5..17df6b8a84 100644
--- a/src/main/java/baseball/controller/GameManager.java
+++ b/src/main/java/baseball/controller/GameManager.java
@@ -1,8 +1,10 @@
 package baseball.controller;
 
 import baseball.domain.Computer;
+import baseball.domain.HintResult;
 import baseball.view.InputView;
 import baseball.view.OutputView;
+import java.util.List;
 
 public class GameManager {
     private final InputView inputView;
@@ -16,4 +18,20 @@ public GameManager() {
         this.computer = new Computer();
     }
 
+    public void run() {
+        boolean isRunning = true;
+        while (isRunning) {
+            List<Integer> numbers = inputView.enterNumbers();
+            HintResult hintResult = computer.generateHintResult(numbers);
+            outputView.printHintResult(hintResult);
+            if (isSuccess(hintResult)) {
+                outputView.printGameOver();
+                isRunning = inputView.enterRestartOrQuit().isRunning();
+            }
+        }
+    }
+
+    private boolean isSuccess(HintResult hintResult) {
+        return hintResult.strike() == 3;
+    }
 }

From f0ac6e92bc74353fe38b0af0b290d59f25876ffe Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:11:30 +0900
Subject: [PATCH 10/21] =?UTF-8?q?feat:=20=EA=B2=8C=EC=9E=84=EC=9D=98=20?=
 =?UTF-8?q?=EC=9E=AC=EC=8B=9C=EC=9E=91=20=ED=98=B9=EC=9D=80=20=EC=A2=85?=
 =?UTF-8?q?=EB=A3=8C=20=EC=97=AC=EB=B6=80=EB=A5=BC=20=EC=9E=85=EB=A0=A5?=
 =?UTF-8?q?=ED=95=A0=20Enum=20=ED=81=B4=EB=9E=98=EC=8A=A4=20=EC=83=9D?=
 =?UTF-8?q?=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/baseball/domain/GameCommand.java     | 29 +++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 src/main/java/baseball/domain/GameCommand.java

diff --git a/src/main/java/baseball/domain/GameCommand.java b/src/main/java/baseball/domain/GameCommand.java
new file mode 100644
index 0000000000..dbf9e1c678
--- /dev/null
+++ b/src/main/java/baseball/domain/GameCommand.java
@@ -0,0 +1,29 @@
+package baseball.domain;
+
+import baseball.global.exception.CustomException;
+import baseball.global.exception.ErrorMessage;
+import java.util.Arrays;
+
+public enum GameCommand {
+    RESTART("1", true),
+    QUIT("2", false);
+
+    private final String command;
+    private final boolean isRunning;
+
+    GameCommand(String command, boolean isRunning) {
+        this.command = command;
+        this.isRunning = isRunning;
+    }
+
+    public static GameCommand from(String command) {
+        return Arrays.stream(GameCommand.values())
+                .filter(element -> element.command.equals(command))
+                .findFirst()
+                .orElseThrow(() -> CustomException.from(ErrorMessage.INVALID_NUMBER_ERROR));
+    }
+
+    public boolean isRunning() {
+        return isRunning;
+    }
+}

From 0308d4f5237a4ebe838a8eac6b2444964ea789de Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:11:57 +0900
Subject: [PATCH 11/21] =?UTF-8?q?feat:=20=EC=9E=85=EB=A0=A5=EC=9D=98=20?=
 =?UTF-8?q?=EC=88=AB=EC=9E=90=EC=99=80=20=EB=B2=94=EC=9C=84=EB=A5=BC=20?=
 =?UTF-8?q?=EA=B2=80=EC=A6=9D=ED=95=98=EB=8A=94=20Validator=20=EC=83=9D?=
 =?UTF-8?q?=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../baseball/global/validator/Validator.java  | 27 +++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 src/main/java/baseball/global/validator/Validator.java

diff --git a/src/main/java/baseball/global/validator/Validator.java b/src/main/java/baseball/global/validator/Validator.java
new file mode 100644
index 0000000000..529e236c6e
--- /dev/null
+++ b/src/main/java/baseball/global/validator/Validator.java
@@ -0,0 +1,27 @@
+package baseball.global.validator;
+
+import baseball.global.exception.CustomException;
+import baseball.global.exception.ErrorMessage;
+
+public class Validator {
+    public static int validateNumber(String message) {
+        if (isNotNumber(message)) {
+            throw CustomException.from(ErrorMessage.NOT_NUMBER_ERROR);
+        }
+        return Integer.parseInt(message);
+    }
+
+    private static boolean isNotNumber(String str) {
+        return !str.matches("-?\\d+");
+    }
+
+    public static void validateRange(int number, int start, int end) {
+        if (isInvalidRange(number, start, end)) {
+            throw CustomException.from(ErrorMessage.INVALID_RANGE_ERROR);
+        }
+    }
+
+    private static boolean isInvalidRange(int number, int start, int end) {
+        return number < start || number > end;
+    }
+}

From 2ef10d1bcddc57b4ccb9a10d88ab651f95643725 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:12:12 +0900
Subject: [PATCH 12/21] =?UTF-8?q?feat:=20=EC=97=90=EB=9F=AC=20=EB=A9=94?=
 =?UTF-8?q?=EC=8B=9C=EC=A7=80=EB=A5=BC=20=EC=A0=80=EC=9E=A5=ED=95=98?=
 =?UTF-8?q?=EB=8A=94=20Enum=20=ED=81=B4=EB=9E=98=EC=8A=A4=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/global/exception/ErrorMessage.java | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/main/java/baseball/global/exception/ErrorMessage.java b/src/main/java/baseball/global/exception/ErrorMessage.java
index d1bff88deb..c683d8af32 100644
--- a/src/main/java/baseball/global/exception/ErrorMessage.java
+++ b/src/main/java/baseball/global/exception/ErrorMessage.java
@@ -2,6 +2,9 @@
 
 public enum ErrorMessage {
     BLANK_INPUT_ERROR("빈 문자열이 입력되었습니다."),
+    NOT_NUMBER_ERROR("숫자만을 입력해주세요."),
+    INVALID_NUMBER_ERROR("숫자를 다시 입력해주세요."),
+    INVALID_RANGE_ERROR("올바른 범위의 숫자를 입력해주세요.");
 
     private final String message;
 

From f3a1f4373ee86c558fe0715feb0cf1616d212f16 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:12:25 +0900
Subject: [PATCH 13/21] =?UTF-8?q?feat:=20=EC=96=B4=ED=94=8C=EB=A6=AC?=
 =?UTF-8?q?=EC=BC=80=EC=9D=B4=EC=85=98=20=EC=8B=A4=ED=96=89?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/Application.java       | 7 ++++++-
 src/main/java/baseball/domain/HintResult.java | 7 +++++++
 2 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 src/main/java/baseball/domain/HintResult.java

diff --git a/src/main/java/baseball/Application.java b/src/main/java/baseball/Application.java
index dd95a34214..bc41af4f62 100644
--- a/src/main/java/baseball/Application.java
+++ b/src/main/java/baseball/Application.java
@@ -1,7 +1,12 @@
 package baseball;
 
+import baseball.controller.GameManager;
+import camp.nextstep.edu.missionutils.Console;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        GameManager gameManager = new GameManager();
+        gameManager.run();
+        Console.close();
     }
 }
diff --git a/src/main/java/baseball/domain/HintResult.java b/src/main/java/baseball/domain/HintResult.java
new file mode 100644
index 0000000000..f7ace8a492
--- /dev/null
+++ b/src/main/java/baseball/domain/HintResult.java
@@ -0,0 +1,7 @@
+package baseball.domain;
+
+public record HintResult(
+        int strike,
+        int ball
+) {
+}

From 7cf4bece5d4b888dc072ea3ac8d7a8ccd6d52297 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:12:42 +0900
Subject: [PATCH 14/21] =?UTF-8?q?docs:=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84=20=EB=AA=A9=EB=A1=9D=20=EC=B2=B4=ED=81=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 docs/README.md | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/docs/README.md b/docs/README.md
index 241d3d4b16..9e5fed66b2 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -31,7 +31,7 @@
 
 ### 게임을 새로 시작하거나 종료하는 기능
 
-- [ ] 스트라이크가 3인 경우 게임을 종료한다.
-    - [ ] `3개의 숫자를 모두 맞히셨습니다! 게임 종료 \n 게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.`를 출력한다.
-    - [ ] 1 혹은 2의 입력을 받는다.
-- [ ] 입력에 따라 게임을 새로 시작하거나 종료한다.
+- [x] 스트라이크가 3인 경우 게임을 종료한다.
+    - [x] `3개의 숫자를 모두 맞히셨습니다! 게임 종료 \n 게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.`를 출력한다.
+    - [x] 1 혹은 2의 입력을 받는다.
+- [x] 입력에 따라 게임을 새로 시작하거나 종료한다.

From ccd28543c392cb2cba797cd134852e6583a0baa3 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:22:20 +0900
Subject: [PATCH 15/21] =?UTF-8?q?refactor:=20=EA=B2=8C=EC=9E=84=EC=9D=84?=
 =?UTF-8?q?=20=EB=8B=A4=EC=8B=9C=20=EC=8B=9C=EC=9E=91=ED=95=A0=20=EB=95=8C?=
 =?UTF-8?q?=20=EB=9E=9C=EB=8D=A4=20=EC=88=AB=EC=9E=90=EB=A5=BC=20=EC=B4=88?=
 =?UTF-8?q?=EA=B8=B0=ED=99=94?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/controller/GameManager.java | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/main/java/baseball/controller/GameManager.java b/src/main/java/baseball/controller/GameManager.java
index 17df6b8a84..54ebfa14b9 100644
--- a/src/main/java/baseball/controller/GameManager.java
+++ b/src/main/java/baseball/controller/GameManager.java
@@ -21,14 +21,22 @@ public GameManager() {
     public void run() {
         boolean isRunning = true;
         while (isRunning) {
+            computer.generate();
+            isRunning = play();
+        }
+    }
+
+    private boolean play() {
+        while (true) {
             List<Integer> numbers = inputView.enterNumbers();
             HintResult hintResult = computer.generateHintResult(numbers);
             outputView.printHintResult(hintResult);
             if (isSuccess(hintResult)) {
-                outputView.printGameOver();
-                isRunning = inputView.enterRestartOrQuit().isRunning();
+                break;
             }
         }
+        outputView.printGameOver();
+        return inputView.enterRestartOrQuit().isRunning();
     }
 
     private boolean isSuccess(HintResult hintResult) {

From 88c62a8b955c44064ebd48866fecbec33dfeb687 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:22:39 +0900
Subject: [PATCH 16/21] =?UTF-8?q?refactor:=20=EB=A7=88=EC=A7=80=EB=A7=89?=
 =?UTF-8?q?=20=EA=B3=B5=EB=B0=B1=EA=B9=8C=EC=A7=80=20=EC=9D=B8=EC=8B=9D?=
 =?UTF-8?q?=EB=90=98=EB=8A=94=20=ED=98=84=EC=83=81=20=EC=A0=9C=EA=B1=B0?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/view/InputView.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/baseball/view/InputView.java b/src/main/java/baseball/view/InputView.java
index 1c5cde3903..836c0c9fcd 100644
--- a/src/main/java/baseball/view/InputView.java
+++ b/src/main/java/baseball/view/InputView.java
@@ -22,7 +22,7 @@ private List<Integer> validateNumbers(String message) {
         validateDuplicated(numbers);
         List<Integer> result = new ArrayList<>();
         for (String number : numbers) {
-            int value = Validator.validateNumber(message);
+            int value = Validator.validateNumber(number);
             Validator.validateRange(value, 1, 9);
             result.add(value);
         }
@@ -40,7 +40,7 @@ private static List<String> parseStringToList(String message, String separator)
     }
 
     private static String[] split(String message, String separator) {
-        return message.split(separator, -1);
+        return message.split(separator);
     }
 
     private static void validateDuplicated(List<String> items) {

From 8f2f600155e77eb4e4a02265592e826b3686ac2d Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 04:22:59 +0900
Subject: [PATCH 17/21] =?UTF-8?q?refactor:=20=EB=9E=9C=EB=8D=A4=20?=
 =?UTF-8?q?=EC=88=AB=EC=9E=90=20=EC=83=9D=EC=84=B1=20=ED=95=A8=EC=88=98?=
 =?UTF-8?q?=EB=A5=BC=20=EB=B6=84=EB=A6=AC?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/domain/Computer.java | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/main/java/baseball/domain/Computer.java b/src/main/java/baseball/domain/Computer.java
index 409666d211..a96ddbf9fa 100644
--- a/src/main/java/baseball/domain/Computer.java
+++ b/src/main/java/baseball/domain/Computer.java
@@ -1,13 +1,18 @@
 package baseball.domain;
 
 import baseball.global.util.RandomNumberGenerator;
+import java.util.ArrayList;
 import java.util.List;
 
 public class Computer {
-    private final List<Integer> numbers;
+    private List<Integer> numbers;
 
     public Computer() {
-        this.numbers = RandomNumberGenerator.generateRandomNumber();
+        this.numbers = new ArrayList<>();
+    }
+
+    public void generate() {
+        numbers = RandomNumberGenerator.generateRandomNumber();
     }
 
     public HintResult generateHintResult(List<Integer> givenNumbers) {

From 0b6626463a7de9e1d7ab79e96bd35c50e273b7b8 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 12:08:51 +0900
Subject: [PATCH 18/21] =?UTF-8?q?feat:=20=EC=97=90=EB=9F=AC=20=EB=B0=9C?=
 =?UTF-8?q?=EC=83=9D=20=EC=8B=9C=20=EC=9E=AC=EC=9E=85=EB=A0=A5=EB=B0=9B?=
 =?UTF-8?q?=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../java/baseball/controller/GameManager.java | 22 ++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/src/main/java/baseball/controller/GameManager.java b/src/main/java/baseball/controller/GameManager.java
index 54ebfa14b9..9cac62f294 100644
--- a/src/main/java/baseball/controller/GameManager.java
+++ b/src/main/java/baseball/controller/GameManager.java
@@ -2,9 +2,11 @@
 
 import baseball.domain.Computer;
 import baseball.domain.HintResult;
+import baseball.domain.Numbers;
 import baseball.view.InputView;
 import baseball.view.OutputView;
-import java.util.List;
+import baseball.view.console.ConsoleWriter;
+import java.util.function.Supplier;
 
 public class GameManager {
     private final InputView inputView;
@@ -28,7 +30,9 @@ public void run() {
 
     private boolean play() {
         while (true) {
-            List<Integer> numbers = inputView.enterNumbers();
+            Numbers numbers = retry(() -> {
+                return new Numbers(inputView.enterNumbers());
+            });
             HintResult hintResult = computer.generateHintResult(numbers);
             outputView.printHintResult(hintResult);
             if (isSuccess(hintResult)) {
@@ -36,10 +40,22 @@ private boolean play() {
             }
         }
         outputView.printGameOver();
-        return inputView.enterRestartOrQuit().isRunning();
+        return retry(() -> {
+            return inputView.enterRestartOrQuit().isRunning();
+        });
     }
 
     private boolean isSuccess(HintResult hintResult) {
         return hintResult.strike() == 3;
     }
+
+    private static <T> T retry(Supplier<T> supplier) {
+        while (true) {
+            try {
+                return supplier.get();
+            } catch (IllegalArgumentException e) {
+                ConsoleWriter.printlnMessage(e.getMessage());
+            }
+        }
+    }
 }

From 18c84a81c5556927fbf484fbbec0b11b29c95a16 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 12:09:12 +0900
Subject: [PATCH 19/21] =?UTF-8?q?feat:=20=EC=88=AB=EC=9E=90=EB=A5=BC=20?=
 =?UTF-8?q?=EC=A0=80=EC=9E=A5=ED=95=98=EB=8A=94=20=EB=9E=98=ED=8D=BC=20?=
 =?UTF-8?q?=ED=81=B4=EB=9E=98=EC=8A=A4=EC=99=80=20=EC=9D=BC=EA=B8=89=20?=
 =?UTF-8?q?=EC=BB=AC=EB=A0=89=EC=85=98=20=EC=83=9D=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/domain/Number.java  | 24 ++++++++++
 src/main/java/baseball/domain/Numbers.java | 54 ++++++++++++++++++++++
 2 files changed, 78 insertions(+)
 create mode 100644 src/main/java/baseball/domain/Number.java
 create mode 100644 src/main/java/baseball/domain/Numbers.java

diff --git a/src/main/java/baseball/domain/Number.java b/src/main/java/baseball/domain/Number.java
new file mode 100644
index 0000000000..dfdc1272cd
--- /dev/null
+++ b/src/main/java/baseball/domain/Number.java
@@ -0,0 +1,24 @@
+package baseball.domain;
+
+import static baseball.global.validator.Validator.validateRange;
+
+public class Number {
+    private static final int START = 1;
+    private static final int END = 9;
+    private Integer value;
+
+    public Number(Integer value) {
+        Validator.validate(value);
+        this.value = value;
+    }
+
+    public int getValue() {
+        return value;
+    }
+
+    private static class Validator {
+        public static void validate(int value) {
+            validateRange(value, 1, 9);
+        }
+    }
+}
diff --git a/src/main/java/baseball/domain/Numbers.java b/src/main/java/baseball/domain/Numbers.java
new file mode 100644
index 0000000000..0a2e89fe64
--- /dev/null
+++ b/src/main/java/baseball/domain/Numbers.java
@@ -0,0 +1,54 @@
+package baseball.domain;
+
+import baseball.global.exception.CustomException;
+import baseball.global.exception.ErrorMessage;
+import java.util.List;
+
+public class Numbers {
+    private static final int COUNT = 3;
+    private List<Number> numbers;
+
+    public Numbers(List<Integer> numbers) {
+        this.numbers = Validator.validate(numbers);
+    }
+
+    public int get(int index) {
+        return numbers.get(index).getValue();
+    }
+
+    public int size() {
+        return numbers.size();
+    }
+
+    private static class Validator {
+        private static List<Number> validate(List<Integer> numbers) {
+            validateLength(numbers);
+            validateDuplicated(numbers);
+            return numbers.stream()
+                    .map(Number::new)
+                    .toList();
+        }
+
+        private static void validateLength(List<Integer> numbers) {
+            if (numbers.size() != COUNT) {
+                throw CustomException.from(ErrorMessage.INVALID_NUMBER_ERROR);
+            }
+        }
+
+        private static void validateDuplicated(List<Integer> items) {
+            if (hasDuplicatedItem(items)) {
+                throw CustomException.from(ErrorMessage.INVALID_NUMBER_ERROR);
+            }
+        }
+
+        private static boolean hasDuplicatedItem(List<Integer> items) {
+            return items.size() != calculateUniqueItemsCount(items);
+        }
+
+        private static int calculateUniqueItemsCount(List<Integer> items) {
+            return (int) items.stream()
+                    .distinct()
+                    .count();
+        }
+    }
+}

From 071004d061f2e2ca5d7254d0fb6b657160f21128 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 12:09:35 +0900
Subject: [PATCH 20/21] =?UTF-8?q?refactor:=20=EC=9D=BC=EA=B8=89=20?=
 =?UTF-8?q?=EC=BB=AC=EB=A0=89=EC=85=98=EC=9D=84=20=ED=99=9C=EC=9A=A9?=
 =?UTF-8?q?=ED=95=9C=20=EC=9D=B8=EC=9E=90=20=EC=A0=84=EB=8B=AC=20=EA=B5=AC?=
 =?UTF-8?q?=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/domain/Computer.java | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/baseball/domain/Computer.java b/src/main/java/baseball/domain/Computer.java
index a96ddbf9fa..b882906403 100644
--- a/src/main/java/baseball/domain/Computer.java
+++ b/src/main/java/baseball/domain/Computer.java
@@ -15,7 +15,7 @@ public void generate() {
         numbers = RandomNumberGenerator.generateRandomNumber();
     }
 
-    public HintResult generateHintResult(List<Integer> givenNumbers) {
+    public HintResult generateHintResult(Numbers givenNumbers) {
         int strike = 0;
         int ball = 0;
         for (int i = 0; i < numbers.size(); i++) {
@@ -27,7 +27,7 @@ public HintResult generateHintResult(List<Integer> givenNumbers) {
         return new HintResult(strike, ball);
     }
 
-    private int isBallIndex(int i, List<Integer> givenNumbers) {
+    private int isBallIndex(int i, Numbers givenNumbers) {
         for (int j = 0; j < givenNumbers.size(); j++) {
             if (i != j && numbers.get(i) == givenNumbers.get(j)) {
                 return 1;

From b3b4d1a7d7ebd7e913698903bbbc54a39f347255 Mon Sep 17 00:00:00 2001
From: MingyeomKim <mingyum119@naver.com>
Date: Thu, 14 Dec 2023 12:09:53 +0900
Subject: [PATCH 21/21] =?UTF-8?q?feat:=20=EA=B2=80=EC=A6=9D=20=EB=A1=9C?=
 =?UTF-8?q?=EC=A7=81=EC=9D=84=20=EB=8F=84=EB=A9=94=EC=9D=B8=EA=B3=BC=20?=
 =?UTF-8?q?=EB=B6=84=EC=82=B0=ED=95=98=EB=8A=94=20=EA=B2=83=EC=9C=BC?=
 =?UTF-8?q?=EB=A1=9C=20=EC=88=98=EC=A0=95?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/main/java/baseball/view/InputView.java | 61 ++++++----------------
 1 file changed, 16 insertions(+), 45 deletions(-)

diff --git a/src/main/java/baseball/view/InputView.java b/src/main/java/baseball/view/InputView.java
index 836c0c9fcd..b75239d841 100644
--- a/src/main/java/baseball/view/InputView.java
+++ b/src/main/java/baseball/view/InputView.java
@@ -1,66 +1,37 @@
 package baseball.view;
 
 import baseball.domain.GameCommand;
-import baseball.global.exception.CustomException;
-import baseball.global.exception.ErrorMessage;
-import baseball.global.validator.Validator;
 import baseball.view.console.ConsoleReader;
 import baseball.view.console.ConsoleWriter;
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.List;
 
 public class InputView {
     public List<Integer> enterNumbers() {
         ConsoleWriter.printMessage("숫자를 입력해주세요 : ");
-        return validateNumbers(ConsoleReader.enterMessage());
+        return Validator.validateNumbers(ConsoleReader.enterMessage());
     }
 
-    private List<Integer> validateNumbers(String message) {
-        validateLength(message);
-        List<String> numbers = parseStringToList(message, "");
-        validateDuplicated(numbers);
-        List<Integer> result = new ArrayList<>();
-        for (String number : numbers) {
-            int value = Validator.validateNumber(number);
-            Validator.validateRange(value, 1, 9);
-            result.add(value);
-        }
-        return result;
-    }
-
-    private void validateLength(String message) {
-        if (message.length() != 3) {
-            throw CustomException.from(ErrorMessage.INVALID_NUMBER_ERROR);
-        }
-    }
-
-    private static List<String> parseStringToList(String message, String separator) {
-        return Arrays.stream(split(message, separator)).toList();
+    public GameCommand enterRestartOrQuit() {
+        ConsoleWriter.printlnMessage("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
+        return GameCommand.from(ConsoleReader.enterMessage());
     }
 
-    private static String[] split(String message, String separator) {
-        return message.split(separator);
-    }
+    private static class Validator {
+        private static List<Integer> validateNumbers(String message) {
+            List<String> numbers = parseStringToList(message, "");
 
-    private static void validateDuplicated(List<String> items) {
-        if (hasDuplicatedItem(items)) {
-            throw CustomException.from(ErrorMessage.INVALID_NUMBER_ERROR);
+            return numbers.stream()
+                    .map(baseball.global.validator.Validator::validateNumber)
+                    .toList();
         }
-    }
-
-    private static boolean hasDuplicatedItem(List<String> items) {
-        return items.size() != calculateUniqueItemsCount(items);
-    }
 
-    private static int calculateUniqueItemsCount(List<String> items) {
-        return (int) items.stream()
-                .distinct()
-                .count();
-    }
+        private static List<String> parseStringToList(String message, String separator) {
+            return Arrays.stream(split(message, separator)).toList();
+        }
 
-    public GameCommand enterRestartOrQuit() {
-        ConsoleWriter.printlnMessage("게임을 새로 시작하려면 1, 종료하려면 2를 입력하세요.");
-        return GameCommand.from(ConsoleReader.enterMessage());
+        private static String[] split(String message, String separator) {
+            return message.split(separator);
+        }
     }
 }