feat: Study V2 도메인 구현

src/main/java/com/gdschongik/gdsc/domain/common/vo/Semester.java

@@ -0,0 +1,22 @@
+package com.gdschongik.gdsc.domain.common.vo;
+
+import com.gdschongik.gdsc.domain.common.model.SemesterType;
+import jakarta.persistence.Embeddable;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
+import lombok.AccessLevel;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+
+@Getter
+@Embeddable
+@EqualsAndHashCode
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class Semester {
+
+    private Integer academicYear;
+
+    @Enumerated(EnumType.STRING)
+    private SemesterType semesterType;
+}

src/main/java/com/gdschongik/gdsc/domain/recruitment/domain/RecruitmentRoundValidator.java

@@ -61,6 +61,7 @@ private void validateDateTimeWithinTwoWeeks(LocalDateTime dateTime, LocalDateTim
 
     private void validatePeriodOverlap(
             List<RecruitmentRound> recruitmentRounds, LocalDateTime startDate, LocalDateTime endDate) {
+        // TODO: recruitmentRound.getPeriod().validatePeriodOverlap(startDate, endDate)로 변경
         recruitmentRounds.forEach(recruitmentRound -> recruitmentRound.validatePeriodOverlap(startDate, endDate));
     }
 

src/main/java/com/gdschongik/gdsc/domain/studyv2/domain/StudySessionV2.java

@@ -0,0 +1,108 @@
+package com.gdschongik.gdsc.domain.studyv2.domain;
+
+import com.gdschongik.gdsc.domain.common.model.BaseEntity;
+import com.gdschongik.gdsc.domain.common.vo.Period;
+import jakarta.persistence.AttributeOverride;
+import jakarta.persistence.Column;
+import jakarta.persistence.Embedded;
+import jakarta.persistence.Entity;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.Table;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.hibernate.annotations.Comment;
+
+@Getter
+@Entity
+@Table(name = "study_session_v2")
+@RequiredArgsConstructor(access = AccessLevel.PROTECTED)
+public class StudySessionV2 extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "study_session_v2_id")
+    private Long id;
+
+    @Comment("회차 제목")
+    private String title;
+
+    @Comment("회차 설명")
+    private String description;
+
+    // 수업 관련 필드
+
+    @Comment("수업 출석 번호")
+    private Integer lessonAttendanceNumber;
+
+    @Embedded
+    @AttributeOverride(name = "startDate", column = @Column(name = "lesson_start_at"))
+    @AttributeOverride(name = "endDate", column = @Column(name = "lesson_end_at"))
+    private Period lessonPeriod;
+
+    // 과제 관련 필드
+
+    @Comment("과제 명세 링크")
+    private String assignmentDescriptionLink;
+
+    @Embedded
+    @AttributeOverride(name = "startDate", column = @Column(name = "assignment_start_at"))
+    @AttributeOverride(name = "endDate", column = @Column(name = "assignment_end_at"))
+    private Period assignmentPeriod;
+
+    // 참조 필드
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "study_v2_id")
+    private StudyV2 studyV2;
+
+    /**
+     * 모든 스터디회차는 인자로 전달되는 스터디 애그리거트 루트 엔티티에 종속됩니다.
+     * 따라서 스터디회차 생성 팩토리 메서드 생성 시 자기 자신을 반환하지 않고,
+     * 스터디 애그리거트 루트 엔티티의 스터디회차 컬렉션에 자기 자신을 추가하는 식으로 생성합니다.
+     * 부모 클래스에서 위 로직을 수행하기 때문에, 생성 팩토리 메서드는 void 타입을 반환해야 합니다.
+     */
+    @Builder(access = AccessLevel.PRIVATE)
+    private StudySessionV2(
+            String title,
+            String description,
+            Integer lessonAttendanceNumber,
+            Period lessonPeriod,
+            String assignmentDescriptionLink,
+            Period assignmentPeriod,
+            StudyV2 studyV2) {
+        this.title = title;
+        this.description = description;
+        this.lessonAttendanceNumber = lessonAttendanceNumber;
+        this.lessonPeriod = lessonPeriod;
+        this.assignmentDescriptionLink = assignmentDescriptionLink;
+        this.assignmentPeriod = assignmentPeriod;
+        this.studyV2 = studyV2;
+        studyV2.getStudySessions().add(this);
+    }
+
+    public void create(
+            String title,
+            String description,
+            Integer lessonAttendanceNumber,
+            Period lessonPeriod,
+            String assignmentDescriptionLink,
+            Period assignmentPeriod,
+            StudyV2 studyV2) {
+        StudySessionV2.builder()
+                .title(title)
+                .description(description)
+                .lessonAttendanceNumber(lessonAttendanceNumber)
+                .lessonPeriod(lessonPeriod)
+                .assignmentDescriptionLink(assignmentDescriptionLink)
+                .assignmentPeriod(assignmentPeriod)
+                .studyV2(studyV2)
+                .build();
+    }
+}

src/main/java/com/gdschongik/gdsc/domain/studyv2/domain/StudyV2.java

@@ -0,0 +1,155 @@
+package com.gdschongik.gdsc.domain.studyv2.domain;
+
+import com.gdschongik.gdsc.domain.common.model.BaseEntity;
+import com.gdschongik.gdsc.domain.common.vo.Period;
+import com.gdschongik.gdsc.domain.common.vo.Semester;
+import com.gdschongik.gdsc.domain.member.domain.Member;
+import com.gdschongik.gdsc.domain.study.domain.StudyType;
+import jakarta.persistence.AttributeOverride;
+import jakarta.persistence.Column;
+import jakarta.persistence.Embedded;
+import jakarta.persistence.Entity;
+import jakarta.persistence.EnumType;
+import jakarta.persistence.Enumerated;
+import jakarta.persistence.FetchType;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
+import jakarta.persistence.JoinColumn;
+import jakarta.persistence.ManyToOne;
+import jakarta.persistence.OneToMany;
+import jakarta.persistence.Table;
+import java.time.DayOfWeek;
+import java.time.LocalTime;
+import java.util.ArrayList;
+import java.util.List;
+import lombok.AccessLevel;
+import lombok.Builder;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
+import org.hibernate.annotations.Comment;
+
+/**
+ * 스터디 애그리거트 루트 엔티티입니다.
+ * [메타] 태그가 있는 필드는 수강 신청 시 참고용으로만 사용되며, 스터디회차 엔티티 내부 상태 검증에 사용되지 않습니다.
+ * 혼동이 예상되는 경우 코멘트에 해당 태그가 명시되어 있습니다.
+ * 그 외 필드의 경우 스터디 애그리거트 내부 상태 검증에 사용될 수 있습니다. (ex: 총 회차 수)
+ */
+@Getter
+@Entity
+@Table(name = "study_v2")
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
+public class StudyV2 extends BaseEntity {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    @Column(name = "study_v2_id")
+    private Long id;
+
+    private StudyType type;
+
+    @Comment("스터디 이름")
+    private String title;
+
+    @Comment("스터디 소개")
+    private String description;
+
+    @Comment("스터디 소개 노션 링크")
+    @Column(columnDefinition = "TEXT")
+    private String descriptionNotionLink;
+
+    @Enumerated(EnumType.STRING)
+    private Semester semester;
+
+    @Comment("총 회차 수")
+    private Integer totalWeek;
+
+    @Comment("[메타] 스터디 요일")
+    @Enumerated(EnumType.STRING)
+    private DayOfWeek dayOfWeek;
+
+    @Comment("[메타] 스터디 시작 시간")
+    private LocalTime startTime;
+
+    @Comment("[메타] 스터디 종료 시간")
+    private LocalTime endTime;
+
+    @Embedded
+    @AttributeOverride(name = "startDate", column = @Column(name = "application_start_date"))
+    @AttributeOverride(name = "endDate", column = @Column(name = "application_end_date"))
+    private Period applicationPeriod;
+
+    @Comment("디스코드 채널 ID")
+    private String discordChannelId;
+
+    @Comment("디스코드 역할 ID")
+    private String discordRoleId;
+
+    @ManyToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "member_id")
+    private Member mentor;
+
+    @OneToMany(mappedBy = "studyV2")
+    private List<StudySessionV2> studySessions = new ArrayList<>();
+
+    @Builder(access = AccessLevel.PRIVATE)
+    private StudyV2(
+            StudyType type,
+            String title,
+            String description,
+            String descriptionNotionLink,
+            Semester semester,
+            Integer totalWeek,
+            DayOfWeek dayOfWeek,
+            LocalTime startTime,
+            LocalTime endTime,
+            Period applicationPeriod,
+            String discordChannelId,
+            String discordRoleId,
+            Member mentor) {
+        this.type = type;
+        this.title = title;
+        this.description = description;
+        this.descriptionNotionLink = descriptionNotionLink;
+        this.semester = semester;
+        this.totalWeek = totalWeek;
+        this.dayOfWeek = dayOfWeek;
+        this.startTime = startTime;
+        this.endTime = endTime;
+        this.applicationPeriod = applicationPeriod;
+        this.discordChannelId = discordChannelId;
+        this.discordRoleId = discordRoleId;
+        this.mentor = mentor;
+    }
+
+    public static StudyV2 create(
+            StudyType type,
+            String title,
+            String description,
+            String descriptionNotionLink,
+            Semester semester,
+            Integer totalWeek,
+            DayOfWeek dayOfWeek,
+            LocalTime startTime,
+            LocalTime endTime,
+            Period applicationPeriod,
+            String discordChannelId,
+            String discordRoleId,
+            Member mentor) {
+        return StudyV2.builder()
+                .type(type)
+                .title(title)
+                .description(description)
+                .descriptionNotionLink(descriptionNotionLink)
+                .semester(semester)
+                .totalWeek(totalWeek)
+                .dayOfWeek(dayOfWeek)
+                .startTime(startTime)
+                .endTime(endTime)
+                .applicationPeriod(applicationPeriod)
+                .discordChannelId(discordChannelId)
+                .discordRoleId(discordRoleId)
+                .mentor(mentor)
+                .build();
+    }
+}