From a1351dd8945cec158944981df7b76bb3e2da9a3b Mon Sep 17 00:00:00 2001
From: moongua404 <hogun.soongit@gmail.com>
Date: Mon, 31 Mar 2025 12:55:43 +0900
Subject: [PATCH 1/2] =?UTF-8?q?docs(README.md):=20README=20=EC=9E=91?=
 =?UTF-8?q?=EC=84=B1?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 README.md | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index ff5c1ab..888cdd8 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,25 @@
-# All-rounder Backend Study
+# 🖨️ mission-printer 🖨
+
+## 기능 명세
+
+- 입출력
+  - 숫자로 구성된 문자열 입력
+  - 숫자 입력
+  - 안내 출력
+  - 여러 문자열 출력
+
+- 아스키 아트 변환
+  - 문자열 -> 아스키아트 변환
+  - 아스키아트 병합
+
+- 잉크 관리
+  - 잉크 확인 및 출력 제한
+  - 잉크 보충
+
+## 구현 계획
+AsciiGenerator
+- 아스키아트 생성 및 변환
+
+Printer
+- 잉크 관리, 출력 요청
+

From 6fc2792acbd3457dad3c9669d4bdb2d94f654aa9 Mon Sep 17 00:00:00 2001
From: moongua404 <hogun.soongit@gmail.com>
Date: Mon, 31 Mar 2025 15:38:16 +0900
Subject: [PATCH 2/2] =?UTF-8?q?feat:=20=ED=94=84=EB=A1=9C=EA=B7=B8?=
 =?UTF-8?q?=EB=9E=A8=20=EA=B5=AC=ED=98=84?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .idea/gradle.xml                              |  1 +
 src/main/java/mission/AppConfig.java          | 20 +++++
 src/main/java/mission/Application.java        |  6 ++
 .../mission/ProgramTerminateException.java    |  9 +++
 .../mission/controller/PrinterController.java | 76 +++++++++++++++++++
 .../mission/interfaces/PrintInterface.java    |  5 ++
 .../java/mission/model/AsciiGenerator.java    | 74 ++++++++++++++++++
 src/main/java/mission/model/Printer.java      | 46 +++++++++++
 .../java/mission/utils/AsciiGenerator.java    | 41 ----------
 src/main/java/mission/utils/Utility.java      | 43 +++++++++++
 src/main/java/mission/utils/Validator.java    | 15 ++++
 src/main/java/mission/view/InputView.java     | 37 +++++++++
 src/main/java/mission/view/OutputView.java    | 33 ++++++++
 src/test/java/mission/AsciiGeneratorTest.java | 15 +++-
 14 files changed, 379 insertions(+), 42 deletions(-)
 create mode 100644 src/main/java/mission/AppConfig.java
 create mode 100644 src/main/java/mission/ProgramTerminateException.java
 create mode 100644 src/main/java/mission/controller/PrinterController.java
 create mode 100644 src/main/java/mission/interfaces/PrintInterface.java
 create mode 100644 src/main/java/mission/model/AsciiGenerator.java
 create mode 100644 src/main/java/mission/model/Printer.java
 delete mode 100644 src/main/java/mission/utils/AsciiGenerator.java
 create mode 100644 src/main/java/mission/utils/Utility.java
 create mode 100644 src/main/java/mission/utils/Validator.java
 create mode 100644 src/main/java/mission/view/InputView.java
 create mode 100644 src/main/java/mission/view/OutputView.java

diff --git a/.idea/gradle.xml b/.idea/gradle.xml
index f9163b4..ce1c62c 100644
--- a/.idea/gradle.xml
+++ b/.idea/gradle.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
+  <component name="GradleMigrationSettings" migrationVersion="1" />
   <component name="GradleSettings">
     <option name="linkedExternalProjectsSettings">
       <GradleProjectSettings>
diff --git a/src/main/java/mission/AppConfig.java b/src/main/java/mission/AppConfig.java
new file mode 100644
index 0000000..68debb4
--- /dev/null
+++ b/src/main/java/mission/AppConfig.java
@@ -0,0 +1,20 @@
+package mission;
+
+import mission.controller.PrinterController;
+import mission.model.Printer;
+import mission.view.InputView;
+import mission.view.OutputView;
+
+public class AppConfig {
+    public InputView inputView() {
+        return new InputView();
+    }
+
+    public OutputView outputView() {
+        return new OutputView();
+    }
+
+    public PrinterController printerController() {
+        return new PrinterController(inputView(), outputView());
+    }
+}
diff --git a/src/main/java/mission/Application.java b/src/main/java/mission/Application.java
index 4bfd621..ee20130 100644
--- a/src/main/java/mission/Application.java
+++ b/src/main/java/mission/Application.java
@@ -1,7 +1,13 @@
 package mission;
 
+import mission.controller.PrinterController;
+
 public class Application {
     public static void main(String[] args) {
         //Todo: 프로그램 구현
+        AppConfig appConfig = new AppConfig();
+        PrinterController printerController = appConfig.printerController();
+
+        printerController.run();
     }
 }
diff --git a/src/main/java/mission/ProgramTerminateException.java b/src/main/java/mission/ProgramTerminateException.java
new file mode 100644
index 0000000..44ff698
--- /dev/null
+++ b/src/main/java/mission/ProgramTerminateException.java
@@ -0,0 +1,9 @@
+package mission;
+
+public class ProgramTerminateException extends RuntimeException {
+    public ProgramTerminateException() {}
+
+    public ProgramTerminateException(String message) {
+        super(message);
+    }
+}
diff --git a/src/main/java/mission/controller/PrinterController.java b/src/main/java/mission/controller/PrinterController.java
new file mode 100644
index 0000000..e065f52
--- /dev/null
+++ b/src/main/java/mission/controller/PrinterController.java
@@ -0,0 +1,76 @@
+package mission.controller;
+
+import mission.ProgramTerminateException;
+import mission.interfaces.PrintInterface;
+import mission.model.AsciiGenerator;
+import mission.model.Printer;
+import mission.utils.Utility;
+import mission.utils.Validator;
+import mission.view.InputView;
+import mission.view.OutputView;
+
+public class PrinterController {
+    InputView inputView;
+    OutputView outputView;
+    AsciiGenerator asciiGenerator;
+    Printer printer;
+
+    public PrinterController(InputView inputView, OutputView outputView) {
+        class PrintInterfaceImpl implements PrintInterface {
+            @Override
+            public void print(String body) {
+                outputView.printMessage(body);
+            }
+        }
+
+        this.inputView = inputView;
+        this.outputView = outputView;
+        asciiGenerator = new AsciiGenerator();
+        printer = new Printer(new PrintInterfaceImpl());
+    }
+
+    public void run() {
+        outputView.printerExecuteMessage();
+        while (true) {
+            try {
+                execute();
+            } catch (ProgramTerminateException exception) {
+                break;
+            } catch (Exception exception) {
+                outputView.printMessage(exception.getMessage());
+            }
+        }
+        outputView.printTerminateMessage();
+    }
+
+    private void execute() {
+        int selected = inputView.getFeatureSelection();
+        if (selected == 1) {
+            print();
+            return;
+        }
+        if (selected == 2) {
+            outputView.showInk(printer.getInk(), printer.getMaxInk());
+            return;
+        }
+        if (selected == 3) {
+            printer.setInk();
+            outputView.chargedInk();
+            return;
+        }
+        if (selected == 4) {
+            throw new ProgramTerminateException();
+        }
+        throw new IllegalArgumentException("[ERROR] 잘못된 입력입니다.");
+    }
+
+    private void print() {
+        String line = inputView.getNumberLine();
+        Validator.composeNumeric(line);
+
+        int length = inputView.getLineLength();
+        Validator.positiveInteger(length);
+
+        printer.print(asciiGenerator.generateAsciiPrintout(Utility.stringToIntegers(line), length));
+    }
+}
diff --git a/src/main/java/mission/interfaces/PrintInterface.java b/src/main/java/mission/interfaces/PrintInterface.java
new file mode 100644
index 0000000..32ea40a
--- /dev/null
+++ b/src/main/java/mission/interfaces/PrintInterface.java
@@ -0,0 +1,5 @@
+package mission.interfaces;
+
+public interface PrintInterface {
+    void print(String body);
+}
diff --git a/src/main/java/mission/model/AsciiGenerator.java b/src/main/java/mission/model/AsciiGenerator.java
new file mode 100644
index 0000000..f7f16fa
--- /dev/null
+++ b/src/main/java/mission/model/AsciiGenerator.java
@@ -0,0 +1,74 @@
+package mission.model;
+
+import java.io.IOException;
+import java.net.URISyntaxException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.Objects;
+import java.util.stream.Collectors;
+import java.util.stream.IntStream;
+import java.util.stream.Stream;
+import mission.utils.Utility;
+
+public class AsciiGenerator {
+    private final List<List<String>> data;
+
+    static private final List<String> fileNames = List.of(
+            "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"
+    );
+    static private final int ASCII_HEIGHT = 5;
+
+    public AsciiGenerator() {
+        data = new ArrayList<>();
+        fileNames.forEach(fileName -> {
+            try {
+                Path path = Paths.get(Objects.requireNonNull(
+                        getClass().getClassLoader().getResource("numberAsciiDesign/" + fileName + ".txt")
+                ).toURI());
+                String content = Files.readString(path);
+
+                List<String> paddedLines = Arrays.stream(content.split("\n"))
+                        .map(line -> String.format("%-3s", line))
+                        .toList();
+
+                data.add(paddedLines);
+            } catch (URISyntaxException | IOException e) {
+                throw new IllegalStateException("[ERROR] 아스키아트를 로드하지 못했습니다.");
+            }
+        });
+    }
+
+    public List<String> getNumberAsciiDesign(int number) {
+        try {
+            return data.get(number);
+        } catch (IndexOutOfBoundsException e) {
+            throw new IllegalStateException("[ERROR] 범위를 초과했습니다. ");
+        }
+    }
+
+    private List<List<String>> getNumberAsciiDesign(List<Integer> numbers) {
+        return numbers.stream().map(this::getNumberAsciiDesign).toList();
+    }
+
+    private List<String> concatAsciiLine(List<List<String>> lines) {
+        return IntStream.range(0, ASCII_HEIGHT)
+                .mapToObj(lineIndex -> {
+                    List<String> line = new ArrayList<>();
+                    lines.forEach(ascii -> line.add(ascii.get(lineIndex)));
+                    return String.join("  ", line);
+                })
+                .toList();
+    }
+
+    public List<String> generateAsciiPrintout(List<Integer> numbers, int width) {
+        return Utility.chunkList(numbers, width).stream()
+                .map(this::getNumberAsciiDesign)
+                .map(this::concatAsciiLine)
+                .flatMap(list -> Stream.concat(list.stream(), Stream.of("")))
+                .toList();
+    }
+}
diff --git a/src/main/java/mission/model/Printer.java b/src/main/java/mission/model/Printer.java
new file mode 100644
index 0000000..2e50137
--- /dev/null
+++ b/src/main/java/mission/model/Printer.java
@@ -0,0 +1,46 @@
+package mission.model;
+
+import java.util.List;
+import mission.interfaces.PrintInterface;
+import mission.utils.Utility;
+
+public class Printer {
+    private static final int MAX_INK = 1000;
+
+    PrintInterface printInterface;
+    int ink;
+
+    public Printer(PrintInterface printInterface) {
+        this.printInterface = printInterface;
+        ink = MAX_INK;
+    }
+
+    public int getMaxInk() {
+        return MAX_INK;
+    }
+
+    public int getInk() {
+        return ink;
+    }
+
+    public void setInk() {
+        this.ink = MAX_INK;
+    }
+
+    public void print(List<String> lines) {
+        lines.forEach(line -> {
+            int consume = Utility.countNonWhitespaceChars(line);
+            if (consume > ink) {
+                lastPrint(line);
+                throw new IllegalStateException("잉크가 부족해 출력이 중단되었습니다.");
+            }
+            ink -= consume;
+            printInterface.print(line);
+        });
+    }
+
+    public void lastPrint(String line) {
+        printInterface.print(Utility.substringUntilNthChar(line, '◼', ink));
+        ink = 0;
+    }
+}
diff --git a/src/main/java/mission/utils/AsciiGenerator.java b/src/main/java/mission/utils/AsciiGenerator.java
deleted file mode 100644
index 2498d7e..0000000
--- a/src/main/java/mission/utils/AsciiGenerator.java
+++ /dev/null
@@ -1,41 +0,0 @@
-package mission.utils;
-
-import java.io.IOException;
-import java.net.URISyntaxException;
-import java.nio.file.Files;
-import java.nio.file.Path;
-import java.nio.file.Paths;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Objects;
-
-public class AsciiGenerator {
-    private final List<List<String>> data;
-
-    static private final List<String> fileNames = List.of(
-            "zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"
-    );
-
-    public AsciiGenerator() {
-        data = new ArrayList<>();
-        fileNames.forEach(fileName -> {
-            try {
-                Path path = Paths.get(Objects.requireNonNull(
-                        getClass().getClassLoader().getResource("numberAsciiDesign/" + fileName + ".txt")
-                ).toURI());
-                String content = Files.readString(path);
-                data.add(List.of(content.split("\n")));
-            } catch (URISyntaxException | IOException e) {
-                throw new IllegalStateException("[ERROR] 아스키아트를 로드하지 못했습니다.");
-            }
-        });
-    }
-
-    public List<String> getNumberAsciiDesign(int number) {
-        try {
-            return data.get(number);
-        } catch (IndexOutOfBoundsException e) {
-            throw new IllegalStateException("[ERROR] 범위를 초과했습니다. ");
-        }
-    }
-}
diff --git a/src/main/java/mission/utils/Utility.java b/src/main/java/mission/utils/Utility.java
new file mode 100644
index 0000000..274279c
--- /dev/null
+++ b/src/main/java/mission/utils/Utility.java
@@ -0,0 +1,43 @@
+package mission.utils;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class Utility {
+    public static <T> List<List<T>> chunkList(List<T> list, int chunkSize) {
+        int size = list.size();
+        List<List<T>> result = new ArrayList<>();
+
+        for (int i = 0; i < size; i += chunkSize) {
+            result.add(list.subList(i, Math.min(size, i + chunkSize)));
+        }
+
+        return result;
+    }
+
+    public static List<Integer> stringToIntegers(String line) {
+        return line.chars().map(c -> c - '0').boxed().toList();
+    }
+
+    public static int countNonWhitespaceChars(String line) {
+        if (line == null) return 0;
+        return (int) line.chars()
+                .filter(ch -> !Character.isWhitespace(ch))
+                .count();
+    }
+
+    public static String substringUntilNthChar(String str, char target, int n) {
+        int count = 0;
+
+        for (int i = 0; i < str.length(); i++) {
+            if (str.charAt(i) == target) {
+                count++;
+                if (count == n) {
+                    return str.substring(0, i);
+                }
+            }
+        }
+
+        return str;
+    }
+}
diff --git a/src/main/java/mission/utils/Validator.java b/src/main/java/mission/utils/Validator.java
new file mode 100644
index 0000000..5298e91
--- /dev/null
+++ b/src/main/java/mission/utils/Validator.java
@@ -0,0 +1,15 @@
+package mission.utils;
+
+public class Validator {
+    public static void composeNumeric(String input) {
+        if (!input.matches("^[0-9]+$")) {
+            throw new IllegalStateException("[ERROR] 숫자가 아닌 문자가 포함되어 있습니다.");
+        }
+    }
+
+    public static void positiveInteger(int value) {
+        if (value <= 0) {
+            throw new IllegalStateException("[ERROR] 양수가 아닙니다.");
+        }
+    }
+}
diff --git a/src/main/java/mission/view/InputView.java b/src/main/java/mission/view/InputView.java
new file mode 100644
index 0000000..048f170
--- /dev/null
+++ b/src/main/java/mission/view/InputView.java
@@ -0,0 +1,37 @@
+package mission.view;
+
+import java.util.Scanner;
+
+public class InputView {
+    Scanner scanner;
+    public InputView() {
+        scanner = new Scanner(System.in);
+    }
+
+    public int getFeatureSelection() {
+        try {
+            System.out.println("사용할 기능을 입력해주세요. 1) 출력, 2) 잉크 잔량 확인, 3) 잉크 교체, 4) 프로그램 종료");
+            return Integer.parseInt(scanner.nextLine());
+        } catch (Exception e) {
+            throw new IllegalArgumentException("[ERROR] 잘못된 입력입니다. ");
+        }
+    }
+
+    public String getNumberLine() {
+        try {
+            System.out.println("출력할 숫자를 입력해주세요.");
+            return scanner.nextLine();
+        } catch (Exception e) {
+            throw new IllegalArgumentException("[ERROR] 잘못된 입력입니다. ");
+        }
+    }
+
+    public int getLineLength() {
+        try {
+            System.out.println("용지 크기를 입력해주세요.");
+            return Integer.parseInt(scanner.nextLine());
+        } catch (Exception e) {
+            throw new IllegalArgumentException("[ERROR] 잘못된 입력입니다. ");
+        }
+    }
+}
diff --git a/src/main/java/mission/view/OutputView.java b/src/main/java/mission/view/OutputView.java
new file mode 100644
index 0000000..32fefa5
--- /dev/null
+++ b/src/main/java/mission/view/OutputView.java
@@ -0,0 +1,33 @@
+package mission.view;
+
+import java.util.List;
+
+public class OutputView {
+    public void printPrintout(List<String> printout) {
+        printout.forEach(System.out::println);
+    }
+
+    public void printerExecuteMessage() {
+        System.out.println("프린터를 실행합니다.");
+    }
+
+    public void printMessage(String message) {
+        System.out.println(message);
+    }
+
+    public void printEndMessage() {
+        System.out.println("출력이 완료되었습니다.");
+    }
+
+    public void showInk(int ink, int max) {
+        System.out.printf("잉크 잔량 : %d, %d%n", ink, max);
+    }
+
+    public void chargedInk() {
+        System.out.println("잉크를 교체하였습니다.");
+    }
+
+    public void printTerminateMessage() {
+        System.out.println("프로그램을 종료합니다.");
+    }
+}
diff --git a/src/test/java/mission/AsciiGeneratorTest.java b/src/test/java/mission/AsciiGeneratorTest.java
index 910c2ed..39c66dc 100644
--- a/src/test/java/mission/AsciiGeneratorTest.java
+++ b/src/test/java/mission/AsciiGeneratorTest.java
@@ -4,7 +4,7 @@
 import static org.junit.jupiter.api.Assertions.assertThrows;
 
 import java.util.List;
-import mission.utils.AsciiGenerator;
+import mission.model.AsciiGenerator;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
@@ -30,6 +30,13 @@ void getNumberAsciiDesign9Test() {
         assertEquals(zero, ascii);
     }
 
+    @Test
+    void getNumberAsciiDesign2Test() {
+        List<String> ascii = asciiGenerator.getNumberAsciiDesign(2);
+        List<String> zero = List.of("◼◼◼", "  ◼", "◼◼◼", "◼  ", "◼◼◼");
+        assertEquals(zero, ascii);
+    }
+
     @Test
     void 범위를_초과하면_예외_발생() {
         IllegalStateException exception = assertThrows(
@@ -37,4 +44,10 @@ void getNumberAsciiDesign9Test() {
                 () -> asciiGenerator.getNumberAsciiDesign(10)
         );
     }
+
+    @Test
+    void generateAsciiPrintoutTest() {
+        List<String> result = asciiGenerator.generateAsciiPrintout(List.of(1, 2, 3, 4), 2);
+        result.forEach(System.out::println);
+    }
 }