실습 대상인 4장 코드를 가져오라

4장 초반의 리팩토링 전 코드를 가져왔습니다.
johngrib · johngrib · Mar 21, 2020 · Mar 21, 2020 · Mar 21, 2020 · Mar 21, 2020
commit f7ca49f6168efd1de4f55cba07e8ce03f875636f
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/Customer.java b/src/main/java/com/johngrib/objects/_05_refactoring/Customer.java
@@ -0,0 +1,11 @@
+package com.johngrib.objects._05_refactoring;
+
+public class Customer {
+  private String name;
+  private String id;
+
+  public Customer(String name, String id) {
+    this.name = name;
+    this.id = id;
+  }
+}
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/DiscountCondition.java b/src/main/java/com/johngrib/objects/_05_refactoring/DiscountCondition.java
@@ -0,0 +1,25 @@
+package com.johngrib.objects._05_refactoring;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.DayOfWeek;
+import java.time.LocalTime;
+
+public class DiscountCondition {
+  @Getter
+  @Setter
+  private DiscountConditionType type;
+  @Getter
+  @Setter
+  private int sequence;
+  @Getter
+  @Setter
+  private DayOfWeek dayOfWeek;
+  @Getter
+  @Setter
+  private LocalTime startTime;
+  @Getter
+  @Setter
+  private LocalTime endTime;
+}
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/DiscountConditionType.java b/src/main/java/com/johngrib/objects/_05_refactoring/DiscountConditionType.java
@@ -0,0 +1,6 @@
+package com.johngrib.objects._05_refactoring;
+
+public enum DiscountConditionType {
+  SEQUENCE, // 순번 조건
+  PERIOD    // 기간 조건
+}
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/Movie.java b/src/main/java/com/johngrib/objects/_05_refactoring/Movie.java
@@ -0,0 +1,34 @@
+package com.johngrib.objects._05_refactoring;
+
+import com.johngrib.objects._02_movie.Money;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.Duration;
+import java.util.Collections;
+import java.util.List;
+
+public class Movie {
+  private String title;
+  private Duration runningTime;
+  @Getter
+  @Setter
+  private Money fee;
+
+  @Setter
+  private List<DiscountCondition> discountConditions;
+
+  public List<DiscountCondition> getDiscountConditions() {
+    return Collections.unmodifiableList(discountConditions);
+  }
+
+  @Getter
+  @Setter
+  private MovieType movieType;
+  @Getter
+  @Setter
+  private Money discountAmount;
+  @Getter
+  @Setter
+  private double discountPercent;
+}
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/MovieType.java b/src/main/java/com/johngrib/objects/_05_refactoring/MovieType.java
@@ -0,0 +1,7 @@
+package com.johngrib.objects._05_refactoring;
+
+public enum MovieType {
+  AMOUNT_DISCOUNT,  // 금액 할인 정책
+  PERCENT_DISCOUNT, // 비율 할인 정책
+  NONE_DISCOUNT     // 미적용
+}
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/Reservation.java b/src/main/java/com/johngrib/objects/_05_refactoring/Reservation.java
@@ -0,0 +1,27 @@
+package com.johngrib.objects._05_refactoring;
+
+import com.johngrib.objects._02_movie.Money;
+import lombok.Getter;
+import lombok.Setter;
+
+public class Reservation {
+  @Getter
+  @Setter
+  private Customer customer;
+  @Getter
+  @Setter
+  private Screening screening;
+  @Getter
+  @Setter
+  private Money fee;
+  @Getter
+  @Setter
+  private int audienceCount;
+
+  public Reservation(Customer customer, Screening screening, Money fee, int audienceCount) {
+    this.customer = customer;
+    this.screening = screening;
+    this.fee = fee;
+    this.audienceCount = audienceCount;
+  }
+}
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/ReservationAgency.java b/src/main/java/com/johngrib/objects/_05_refactoring/ReservationAgency.java
@@ -0,0 +1,56 @@
+package com.johngrib.objects._05_refactoring;
+
+import com.johngrib.objects._02_movie.Money;
+
+import java.time.LocalTime;
+
+public class ReservationAgency {
+  /** Movie에 설정된 DiscountCondition 목록을 차례대로 탐색하며 영화의 할인 여부를 판단한다. */
+  public Reservation reserve(Screening screening, Customer customer, int audienceCount) {
+    Movie movie = screening.getMovie();
+
+    boolean discountable = false; // 할인 여부
+
+    // 할인 가능 여부를 확인하는 for 문
+    for (DiscountCondition condition : movie.getDiscountConditions()) {
+      if (condition.getType() == DiscountConditionType.PERIOD) {
+        // 기간 조건이면
+        LocalTime whenScreened = screening.getWhenScreened().toLocalTime();
+
+        discountable = screening.getWhenScreened().getDayOfWeek().equals(condition.getDayOfWeek())
+                && condition.getStartTime().compareTo(whenScreened) <= 0
+                && condition.getEndTime().compareTo(whenScreened) >= 0;
+      } else {
+        // 순번 조건이면
+        discountable = condition.getSequence() == screening.getSequence();
+      }
+      if (discountable) {
+        break;
+      }
+    }
+
+    // discountable 변수의 값을 체크하고 적절한 할인 정책에 따라 예매 요금을 계산하는 if 문
+    Money fee;
+    if (discountable) {
+      Money discountAmount = Money.ZERO;
+      switch (movie.getMovieType()) {
+        case AMOUNT_DISCOUNT:
+          // 금액 할인 정책인 경우
+          discountAmount = movie.getDiscountAmount();
+          break;
+        case PERCENT_DISCOUNT:
+          // 비율 할인 정책인 경우
+          discountAmount = movie.getFee().times(movie.getDiscountPercent());
+          break;
+        case NONE_DISCOUNT:
+          // 할인 정책이 적용되지 않은 경우
+          discountAmount = Money.ZERO;
+          break;
+      }
+      fee = movie.getFee().minus(discountAmount).times(audienceCount);
+    } else {
+      fee = movie.getFee();
+    }
+    return new Reservation(customer, screening, fee, audienceCount);
+  }
+}
diff --git a/src/main/java/com/johngrib/objects/_05_refactoring/Screening.java b/src/main/java/com/johngrib/objects/_05_refactoring/Screening.java
@@ -0,0 +1,18 @@
+package com.johngrib.objects._05_refactoring;
+
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDateTime;
+
+public class Screening {
+  @Getter
+  @Setter
+  private Movie movie;
+  @Getter
+  @Setter
+  private int sequence;
+  @Getter
+  @Setter
+  private LocalDateTime whenScreened;
+}