[ 지하철 노선도 미션 ] 박민영 미션 제출합니다.

src/main/java/subway/Application.java

@@ -1,10 +1,13 @@
 package subway;
 
+import subway.menu.MainMenu;
+
 import java.util.Scanner;
 
 public class Application {
     public static void main(String[] args) {
         final Scanner scanner = new Scanner(System.in);
         // TODO: 프로그램 구현
+        new MainMenu(scanner).start();
     }
 }

src/main/java/subway/domain/Line.java

@@ -1,5 +1,10 @@
 package subway.domain;
 
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+
 public class Line {
     private String name;
 
@@ -12,4 +17,51 @@ public String getName() {
     }
 
     // 추가 기능 구현
+
+    private List<Station> stationList = new LinkedList<>();
+
+    public Line(String name, String upLineLastStop, String downLineLastStop) {
+        this.name = name;
+        addStation(upLineLastStop);
+        addStation(downLineLastStop);
+    }
+
+    public int size() {
+        return stationList.size();
+    }
+
+    public void addStation(String stationName) {
+        Station station = StationRepository.findStationByName(stationName);
+        stationList.add(station);
+        station.increaseCount();
+    }
+
+    public void addStation(String index, String stationName) {
+        Station station = StationRepository.findStationByName(stationName);
+        stationList.add(Integer.parseInt(index)-1, station);
+        station.increaseCount();
+    }
+
+    //TODO 삭제 여부를 알아보는 메서드와 삭제를 진행하는 메서드로 나눠야함
+    // 구간 삭제
+    public boolean removeStation(String stationName) {
+        return stationList.removeIf(station -> station.getName().equals(stationName));
+    }
+
+    public void beforeRemove() {
+        for (Station station : stationList()) {
+            station.decreaseCount();
+        }
+    }
+
+    public void deleteLine() {
+        beforeRemove();
+        LineRepository.deleteLineByName(this.name);
+    }
+
+    public List<Station> stationList() {
+        return Collections.unmodifiableList(stationList);
+    }
+
+
 }

src/main/java/subway/domain/LineRepository.java

@@ -19,4 +19,13 @@ public static void addLine(Line line) {
     public static boolean deleteLineByName(String name) {
         return lines.removeIf(line -> Objects.equals(line.getName(), name));
     }
+
+    public static Line findLineByName(String lineName) {
+        for (Line line : lines) {
+            if (line.getName().equals(lineName)) {
+                return line;
+            }
+        }
+        return null;
+    }
 }

src/main/java/subway/domain/Station.java

@@ -12,4 +12,32 @@ public String getName() {
     }
 
     // 추가 기능 구현
+
+    private int count = 0;
+
+    public void increaseCount() {
+        this.count++;
+    }
+
+    public void decreaseCount() {
+        this.count--;
+    }
+
+    public int getCount() {
+        return this.count;
+    }
+
+    public boolean isRemovable() {
+        if (this.count == 0) {
+            return true;
+        }
+        return false;
+    }
+
+    public boolean delete() {
+        if (isRemovable()) {
+            return StationRepository.deleteStation(this.name);
+        }
+        return false;
+    }
 }

src/main/java/subway/domain/StationRepository.java

@@ -1,9 +1,6 @@
 package subway.domain;
 
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.List;
-import java.util.Objects;
+import java.util.*;
 
 public class StationRepository {
     private static final List<Station> stations = new ArrayList<>();
@@ -19,4 +16,14 @@ public static void addStation(Station station) {
     public static boolean deleteStation(String name) {
         return stations.removeIf(station -> Objects.equals(station.getName(), name));
     }
+
+    public static Station findStationByName(String name) {
+        for (Station station : stations()) {
+            if (station.getName().equals(name)) {
+                return station;
+            }
+        }
+        return null;
+    }
+
 }

src/main/java/subway/menu/LineMenu.java

@@ -0,0 +1,114 @@
+package subway.menu;
+
+import subway.domain.Line;
+import subway.service.LineService;
+import subway.util.LineValidator;
+import subway.util.StationValidator;
+
+import java.util.List;
+import java.util.Scanner;
+
+public class LineMenu {
+    private static final String MENU_TITLE = "## 노선 관리 화면";
+    private static final String MENU1 = "1. 노선 등록";
+    private static final String MENU2 = "2. 노선 삭제";
+    private static final String MENU3 = "3. 노선 조회";
+    private static final String BACK = "B. 돌아가기";
+    private static final String CHOICE_MESSAGE = "## 원하는 기능을 선택하세요.";
+
+    private Scanner scanner;
+
+    public LineMenu(Scanner scanner) {
+        this.scanner = scanner;
+    }
+
+    public void startLineMenu() {
+        selectLineMenu();
+    }
+
+    public void selectLineMenu() {
+        while (true) {
+            printLineMenu();
+            String input = scanner.nextLine();
+            lineMenu(input);
+            if (input.equals("B")) {
+                break;
+            }
+            System.out.println();
+        }
+    }
+
+    private void lineMenu(String input) {
+        if (input.equals("1")) {
+            addLineMenu();
+        }
+        if (input.equals("2")) {
+            deleteLineMenu();
+        }
+        if (input.equals("3")) {
+            printLineList();
+        }
+    }
+
+    private void addLineMenu() {
+        System.out.println("\n## 등록할 노선 이름을 입력하세요.");
+        String lineName = scanner.nextLine();
+        addLineName(lineName);
+    }
+
+    private void addLineName(String lineName) {
+        if (LineValidator.checkValidLineName(lineName)) {
+            addUpLineLastStop(lineName);
+        }
+    }
+
+    private void addUpLineLastStop(String lineName) {
+        System.out.println("\n## 등록할 상행 종점역 이름을 입력하세요.");
+        String upLineLastStop = scanner.nextLine();
+        if (StationValidator.haveStationName(upLineLastStop)) {
+            addDownLineLastStop(lineName, upLineLastStop);
+        }
+    }
+
+    private void addDownLineLastStop(String lineName, String upLineLastStop) {
+        System.out.println("\n## 등록할 하행 종점역 이름을 입력하세요.");
+        String downLineLastStop = scanner.nextLine();
+        if (LineValidator.checkValidDownLastStop(upLineLastStop, downLineLastStop)) {
+            LineService.addLine(lineName, upLineLastStop, downLineLastStop);
+            System.out.println("\n[ INFO ] 지하철 노선이 등록되었습니다.");
+        }
+    }
+
+    private void deleteLineMenu(){
+        System.out.println("## 삭제할 노선 이름을 입력하세요.");
+        String lineName = scanner.nextLine();
+        if (LineValidator.haveLineName(lineName)) {
+            LineService.deleteLine(lineName);
+            System.out.println("[ INFO ] 지하철 노선이 삭제되었습니다.");
+        }
+    }
+
+    private void printLineList() {
+        System.out.println("## 노선 목록");
+        List<Line> lines = LineService.getLineList();
+        if (lines.size() == 0) {
+            System.out.println("존재하는 노선이 없습니다.");
+            return;
+        }
+        for (Line line : lines) {
+            System.out.println("[ INFO ] " + line.getName());
+        }
+    }
+
+    //TODO 출력 기능을 다른곳에 모으기
+    public void printLineMenu() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(MENU_TITLE).append("\n")
+                .append(MENU1).append("\n")
+                .append(MENU2).append("\n")
+                .append(MENU3).append("\n")
+                .append(BACK).append("\n\n")
+                .append(CHOICE_MESSAGE);
+        System.out.println(sb);
+    }
+}

src/main/java/subway/menu/MainMenu.java

@@ -0,0 +1,67 @@
+package subway.menu;
+
+import subway.util.DefaultSetting;
+
+import java.util.Scanner;
+
+public class MainMenu {
+
+    private static final String MAIN_TITLE = "## 메인 화면";
+    private static final String MENU1 = "1. 역 관리";
+    private static final String MENU2 = "2. 노선 관리";
+    private static final String MENU3 = "3. 구간 관리";
+    private static final String MENU4 = "4. 지하철 노선도 출력";
+    private static final String QUIT = "Q. 종료";
+    private static final String CHOICE_MESSAGE = "## 원하는 기능을 선택하세요.";
+
+    private Scanner scanner;
+
+    public MainMenu(Scanner scanner) {
+        this.scanner = scanner;
+    }
+
+    //TODO 메뉴번호 이외의 입력을 받았을 때 예외사항 출력 구현해야함
+    public void start() {
+        new DefaultSetting().defaultSetting();
+        selectMainMenu();
+    }
+
+    private void selectMainMenu() {
+        while (true) {
+            printMainMenu();
+            String input = scanner.nextLine();
+            System.out.println();
+            mainMenu(input);
+            if (input.equals("Q")) {
+                break;
+            }
+        }
+    }
+
+    private void mainMenu(String input) {
+        if (input.equals("1")) {
+            new StationMenu(scanner).startStationMenu();
+        }
+        if (input.equals("2")) {
+            new LineMenu(scanner).startLineMenu();
+        }
+        if (input.equals("3")) {
+            new SectionMenu(scanner).startSectionMenu();
+        }
+        if (input.equals("4")) {
+            new SubwayMapMenu().printSubwayMap();
+        }
+    }
+
+    private void printMainMenu() {
+        StringBuilder sb = new StringBuilder();
+        sb.append(MAIN_TITLE).append("\n")
+                .append(MENU1).append("\n")
+                .append(MENU2).append("\n")
+                .append(MENU3).append("\n")
+                .append(MENU4).append("\n")
+                .append(QUIT).append("\n\n")
+                .append(CHOICE_MESSAGE);
+        System.out.println(sb);
+    }
+}