refact: dto의 untilDate 타입 미변경 수정 + 조회,수정,삭제에도 정적 팩토리 기법 적용

Author: KSH0326

src/main/java/com/back/domain/study/plan/dto/StudyPlanRequest.java

@@ -9,6 +9,7 @@
 import lombok.NoArgsConstructor;
 import lombok.Setter;
 
+import java.time.LocalDate;
 import java.time.LocalDateTime;
 import java.time.temporal.ChronoUnit;
 import java.util.ArrayList;
@@ -56,6 +57,6 @@ public static class RepeatRuleRequest {
         private List<DayOfWeek> byDay = new ArrayList<>();
 
         @JsonFormat(shape = JsonFormat.Shape.STRING, pattern = "yyyy-MM-dd")
-        private String untilDate; // "2025-12-31" 형태
+        private LocalDate untilDate; // "2025-12-31" 형태
     }
 }

src/main/java/com/back/domain/study/plan/entity/RepeatRuleEmbeddable.java

@@ -24,4 +24,15 @@ public class RepeatRuleEmbeddable {
     private Integer repeatInterval;
     private List<DayOfWeek> byDay = new ArrayList<>();
     private LocalDate untilDate; // LocalDateTime → LocalDate 변경
+
+    // 정적 팩토리 메서드
+    public static RepeatRuleEmbeddable create(Frequency frequency, Integer repeatInterval,
+                                              List<DayOfWeek> byDay, LocalDate untilDate) {
+        RepeatRuleEmbeddable embeddable = new RepeatRuleEmbeddable();
+        embeddable.frequency = frequency;
+        embeddable.repeatInterval = repeatInterval;
+        embeddable.byDay = byDay != null ? byDay : new ArrayList<>();
+        embeddable.untilDate = untilDate;
+        return embeddable;
+    }
 }

src/main/java/com/back/domain/study/plan/entity/StudyPlanException.java

@@ -66,4 +66,56 @@ public enum ExceptionType {
             @AttributeOverride(name = "untilDate", column = @Column(name = "modified_until_date"))
     })
     private RepeatRuleEmbeddable modifiedRepeatRule;
+
+    // 정적 팩토리 메서드 - 수정 예외
+    public static StudyPlanException createModified(StudyPlan studyPlan, LocalDate exceptionDate,
+                                                    ApplyScope applyScope, String modifiedSubject,
+                                                    LocalDateTime modifiedStartDate, LocalDateTime modifiedEndDate,
+                                                    Color modifiedColor, RepeatRuleEmbeddable modifiedRepeatRule) {
+        StudyPlanException exception = new StudyPlanException();
+        exception.studyPlan = studyPlan;
+        exception.exceptionDate = exceptionDate;
+        exception.exceptionType = ExceptionType.MODIFIED;
+        exception.applyScope = applyScope;
+        exception.modifiedSubject = modifiedSubject;
+        exception.modifiedStartDate = modifiedStartDate;
+        exception.modifiedEndDate = modifiedEndDate;
+        exception.modifiedColor = modifiedColor;
+        exception.modifiedRepeatRule = modifiedRepeatRule;
+        return exception;
+    }
+
+    // 정적 팩토리 메서드 - 삭제 예외
+    public static StudyPlanException createDeleted(StudyPlan studyPlan, LocalDate exceptionDate,
+                                                   ApplyScope applyScope) {
+        StudyPlanException exception = new StudyPlanException();
+        exception.studyPlan = studyPlan;
+        exception.exceptionDate = exceptionDate;
+        exception.exceptionType = ExceptionType.DELETED;
+        exception.applyScope = applyScope;
+        return exception;
+    }
+
+    // 수정 내용 업데이트
+    public void updateModifiedContent(String subject, LocalDateTime startDate,
+                                      LocalDateTime endDate, Color color,
+                                      RepeatRuleEmbeddable repeatRule, ApplyScope applyScope) {
+        if (subject != null) this.modifiedSubject = subject;
+        if (startDate != null) this.modifiedStartDate = startDate;
+        if (endDate != null) this.modifiedEndDate = endDate;
+        if (color != null) this.modifiedColor = color;
+        if (repeatRule != null) this.modifiedRepeatRule = repeatRule;
+        if (applyScope != null) this.applyScope = applyScope;
+    }
+
+    // 삭제 타입으로 변경
+    public void changeToDeleted(ApplyScope applyScope) {
+        this.exceptionType = ExceptionType.DELETED;
+        this.applyScope = applyScope;
+        this.modifiedSubject = null;
+        this.modifiedStartDate = null;
+        this.modifiedEndDate = null;
+        this.modifiedColor = null;
+        this.modifiedRepeatRule = null;
+    }
 }