[User] User 엔티티 정의 및 예시코드 작성

src/main/kotlin/team/incube/flooding/domain/user/entity/Role.kt

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+package team.incube.flooding.domain.user.entity
+
+enum class Role {
+    STUDENT_COUNCIL,
+    DORMITORY_MANAGER,
+    ADMIN,
+    GENERAL_STUDENT
+}

src/main/kotlin/team/incube/flooding/domain/user/entity/Sex.kt

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+package team.incube.flooding.domain.user.entity
+
+enum class Sex {
+    MAN, WOMAN
+}

src/main/kotlin/team/incube/flooding/domain/user/entity/UserJpaEntity.kt

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+package team.incube.flooding.domain.user.entity
+
+import jakarta.persistence.Column
+import jakarta.persistence.Entity
+import jakarta.persistence.EnumType
+import jakarta.persistence.Enumerated
+import jakarta.persistence.Id
+import jakarta.persistence.Table
+import jakarta.persistence.Transient
+
+@Entity
+@Table(name = "tb_user")
+class UserJpaEntity(
+    @field:Id
+    @field:Column(name = "id")
+    val id: Long,
+
+    @field:Column(name = "name", nullable = false)
+    var name: String,
+
+    @field:Column(name = "sex", nullable = false)
+    @field:Enumerated(EnumType.STRING)
+    var sex: Sex,
+
+    @field:Column(name = "email", nullable = false, unique = true)
+    var email: String,
+
+    @field:Column(name = "student_number", nullable = false)
+    var studentNumber: Int,
+
+    @field:Column(name = "role", nullable = false)
+    @field:Enumerated(EnumType.STRING)
+    var role: Role,
+
+    @field:Column(name = "dormitory_room", nullable = false)
+    var dormitoryRoom: Int
+) {
+    @get:Transient
+    val grade: Int
+        get() = studentNumber / 1000
+
+    @get:Transient
+    val classNumber: Int
+        get() = studentNumber % 1000 / 100
+
+    @get:Transient
+    val number: Int
+        get() = studentNumber % 100
+
+    @get:Transient
+    val dormitoryFloor: Int
+        get() = dormitoryRoom / 100
+}

src/main/kotlin/team/incube/flooding/domain/user/repository/UserRepository.kt

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+package team.incube.flooding.domain.user.repository
+
+import org.springframework.data.jpa.repository.JpaRepository
+import team.incube.flooding.domain.user.entity.UserJpaEntity
+
+interface UserRepository : JpaRepository<UserJpaEntity, Long> {
+}

src/main/kotlin/team/incube/flooding/domain/user/service/CreateUserService.kt

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+package team.incube.flooding.domain.user.service
+
+import org.springframework.stereotype.Service
+import team.incube.flooding.domain.user.entity.Role
+import team.incube.flooding.domain.user.entity.Sex
+import team.incube.flooding.domain.user.entity.UserJpaEntity
+import team.incube.flooding.domain.user.repository.UserRepository
+import team.themoment.datagsm.sdk.oauth.model.StudentRole
+import team.themoment.datagsm.sdk.oauth.model.UserInfo
+
+@Service
+class CreateUserService(
+    private val userRepository: UserRepository
+) {
+    fun execute(oauthUser: UserInfo) {
+        if (!oauthUser.isStudent()) throw IllegalArgumentException("학생이 아닙니다.")
+
+        val student = oauthUser.student ?: throw IllegalArgumentException("학생 정보가 없습니다.")
+
+        val user = UserJpaEntity(
+            id = student.id,
+            name = student.name,
+            sex = when (student.sex) {
+                team.themoment.datagsm.sdk.oauth.model.Sex.MAN -> Sex.MAN
+                team.themoment.datagsm.sdk.oauth.model.Sex.WOMAN -> Sex.WOMAN
+            },
+            email = student.email,
+            studentNumber = student.studentNumber,
+            role = when (student.role) {
+                StudentRole.GENERAL_STUDENT -> Role.GENERAL_STUDENT
+                StudentRole.STUDENT_COUNCIL -> Role.STUDENT_COUNCIL
+                StudentRole.DORMITORY_MANAGER -> Role.DORMITORY_MANAGER
+            },
+            dormitoryRoom = student.dormitoryRoom
+        )
+
+        userRepository.save(user)
+    }
+}