[3주차] 과제 수행

http/AccountRequest.http

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+### 계좌 등록 API
+POST {{apiAddress}}/accounts
+Content-Type: application/json
+
+{
+  "userId": 1
+}

http/TransactionRequest.http

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+### 사용자 추가 API
+POST {{apiAddress}}/transactions
+Content-Type: application/json
+
+{
+  "senderId": 1,
+  "senderAccountId": 1,
+  "receiverId": 1,
+  "receiverAccountId": 2,
+  "amount": 1000
+}

http/UserRequest.http

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+### 사용자 추가 API
+POST {{apiAddress}}/users
+Content-Type: application/json
+
+{
+  "name": "이상경"
+}

http/http-client.env.json

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+{
+    "local": {
+        "apiAddress": "http://localhost:8080"
+    }
+}

src/main/kotlin/com/example/estdelivery/adapter/in/web/AccountController.kt

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+package com.example.estdelivery.adapter.`in`.web
+
+import com.example.estdelivery.adapter.`in`.web.dto.account.request.RegisterAccountRequest
+import com.example.estdelivery.adapter.`in`.web.dto.account.response.AccountSummaryResponse
+import com.example.estdelivery.application.port.`in`.RegisterAccountUseCase
+import org.springframework.web.bind.annotation.GetMapping
+import org.springframework.web.bind.annotation.PathVariable
+import org.springframework.web.bind.annotation.PostMapping
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RequestParam
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+@RequestMapping("/accounts")
+class AccountController(
+    private val registerAccountUseCase: RegisterAccountUseCase
+) {
+
+    @GetMapping
+    fun getAccounts(@RequestParam userId: Long): List<AccountSummaryResponse> {
+        TODO()
+    }
+
+    @GetMapping("/{id}")
+    fun getAccount(@PathVariable id: Long): AccountSummaryResponse {
+        TODO()
+    }
+
+    @PostMapping
+    fun registerAccount(@RequestBody request: RegisterAccountRequest) {
+        registerAccountUseCase.registerAccount(request.userId)
+    }
+}

src/main/kotlin/com/example/estdelivery/adapter/in/web/ProcessTransactionController.kt

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+package com.example.estdelivery.adapter.`in`.web
+
+import com.example.estdelivery.adapter.`in`.web.dto.transaction.request.RemitRequest
+import com.example.estdelivery.application.port.`in`.ProcessTransactionUseCase
+import com.example.estdelivery.application.service.ProcessTransactionService
+import org.springframework.web.bind.annotation.PostMapping
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+@RequestMapping("/transactions")
+class ProcessTransactionController(
+    private val processTransactionUseCase: ProcessTransactionUseCase
+) {
+
+    @PostMapping
+    fun processTransaction(@RequestBody request: RemitRequest) {
+        processTransactionUseCase.process(
+            request.senderId,
+            request.senderAccountId,
+            request.receiverId,
+            request.receiverAccountId,
+            request.amount
+        )
+    }
+}

src/main/kotlin/com/example/estdelivery/adapter/in/web/RegisterUserController.kt

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+package com.example.estdelivery.adapter.`in`.web
+
+import com.example.estdelivery.adapter.`in`.web.dto.user.request.RegisterUserRequest
+import com.example.estdelivery.application.port.`in`.RegisterUserUseCase
+import org.springframework.web.bind.annotation.PostMapping
+import org.springframework.web.bind.annotation.RequestBody
+import org.springframework.web.bind.annotation.RequestMapping
+import org.springframework.web.bind.annotation.RestController
+
+@RestController
+@RequestMapping("/users")
+class RegisterUserController(
+    private val registerUserUseCase: RegisterUserUseCase
+) {
+    @PostMapping
+    fun registerUser(@RequestBody request: RegisterUserRequest) {
+        registerUserUseCase.registerUser(request.name)
+    }
+}

src/main/kotlin/com/example/estdelivery/adapter/in/web/dto/account/request/RegisterAccountRequest.kt

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+package com.example.estdelivery.adapter.`in`.web.dto.account.request
+
+data class RegisterAccountRequest(
+    val userId: Long
+)

src/main/kotlin/com/example/estdelivery/adapter/in/web/dto/account/response/AccountDetailResponse.kt

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+package com.example.estdelivery.adapter.`in`.web.dto.account.response
+
+data class AccountDetailResponse(
+    val id: Long,
+    val balance: Long
+)

src/main/kotlin/com/example/estdelivery/adapter/in/web/dto/account/response/AccountSummaryResponse.kt

@@ -0,0 +1,6 @@
+package com.example.estdelivery.adapter.`in`.web.dto.account.response
+
+data class AccountSummaryResponse(
+    val id: Long,
+    val balance: Long
+)

src/main/kotlin/com/example/estdelivery/adapter/in/web/dto/transaction/request/DepositRequest.kt

@@ -0,0 +1,3 @@
+//package com.example.estdelivery.adapter.`in`.web.dto.transaction.request
+//
+//data class DepositRequest()

src/main/kotlin/com/example/estdelivery/adapter/in/web/dto/transaction/request/RemitRequest.kt

@@ -0,0 +1,12 @@
+package com.example.estdelivery.adapter.`in`.web.dto.transaction.request
+
+import java.math.BigDecimal
+import java.time.LocalDateTime
+
+data class RemitRequest(
+    val senderId: Long,
+    val senderAccountId: Long,
+    val receiverId: Long,
+    val receiverAccountId: Long,
+    val amount: BigDecimal,
+)

src/main/kotlin/com/example/estdelivery/adapter/in/web/dto/user/request/RegisterUserRequest.kt

@@ -0,0 +1,5 @@
+package com.example.estdelivery.adapter.`in`.web.dto.user.request
+
+data class RegisterUserRequest(
+    val name: String,
+)

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/account/adapter/AccountPersistenceAdapter.kt

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+package com.example.estdelivery.adapter.out.persistence.account.adapter
+
+import com.example.estdelivery.adapter.out.persistence.account.mapper.toDomain
+import com.example.estdelivery.adapter.out.persistence.account.mapper.toEntity
+import com.example.estdelivery.adapter.out.persistence.account.repository.AccountRepository
+import com.example.estdelivery.application.port.out.AccountPersistencePort
+import com.example.estdelivery.application.port.out.LoadAccountsPort
+import com.example.estdelivery.domain.Account
+import org.springframework.stereotype.Component
+
+@Component
+class AccountPersistenceAdapter(
+    private val accountRepository: AccountRepository
+) : AccountPersistencePort, LoadAccountsPort {
+    override fun loadAccount(userId: Long, accountId: Long): Account {
+        return accountRepository.findByIdAndUserId(accountId, userId).toDomain()
+    }
+
+    override fun loadAccounts(userId: Long): List<Account> {
+        TODO()
+    }
+
+    override fun updateAccountBalance(account: Account) {
+        val accountEntity = accountRepository.findById(account.id!!).orElseThrow {
+            throw Exception("account not found")
+        }
+        accountEntity.updateBalance(account.balance)
+    }
+
+    override fun registerAccount(account: Account) {
+        accountRepository.save(account.toEntity())
+    }
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/account/entity/AccountEntity.kt

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+package com.example.estdelivery.adapter.out.persistence.account.entity
+
+import jakarta.persistence.Entity
+import jakarta.persistence.GeneratedValue
+import jakarta.persistence.GenerationType
+import jakarta.persistence.Id
+import jakarta.persistence.Table
+import java.math.BigDecimal
+
+@Entity
+@Table(name = "account")
+class AccountEntity(
+    userId: Long,
+    accountNumber: String,
+    balance: BigDecimal
+) {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    var id: Long? = null
+        protected set
+
+    var userId: Long = userId
+        protected set
+
+    var accountNumber: String = accountNumber
+        protected set
+
+    var balance: BigDecimal = balance
+        protected set
+
+    fun updateBalance(amount: BigDecimal) {
+        balance += amount
+    }
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/account/mapper/AccountMapper.kt

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+package com.example.estdelivery.adapter.out.persistence.account.mapper
+
+import com.example.estdelivery.adapter.out.persistence.account.entity.AccountEntity
+import com.example.estdelivery.domain.Account
+
+fun Account.toEntity(): AccountEntity {
+    return AccountEntity(
+        userId = this.userId,
+        accountNumber = this.accountNumber,
+        balance = this.balance
+    )
+}
+
+fun AccountEntity.toDomain(): Account {
+    return Account(
+        id = this.id!!,
+        userId = this.userId,
+        accountNumber = this.accountNumber,
+        balance = this.balance
+    )
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/account/repository/AccountRepository.kt

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+package com.example.estdelivery.adapter.out.persistence.account.repository
+
+import com.example.estdelivery.adapter.out.persistence.account.entity.AccountEntity
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface AccountRepository : JpaRepository<AccountEntity, Long> {
+    fun findByIdAndUserId(id: Long, userId: Long): AccountEntity
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/transaction/entity/TransactionEntity.kt

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+package com.example.estdelivery.adapter.out.persistence.transaction.entity
+
+import jakarta.persistence.Entity
+import jakarta.persistence.GeneratedValue
+import jakarta.persistence.GenerationType
+import jakarta.persistence.Id
+import jakarta.persistence.Table
+import java.math.BigDecimal
+
+@Entity
+@Table(name = "transaction")
+class TransactionEntity(
+    accountId: String,
+    amount: BigDecimal
+) {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    var id: Long? = null
+        protected set
+
+    var accountId: String? = accountId
+        protected set
+
+    var amount: BigDecimal = amount
+        protected set
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/user/adapter/UserPersistenceAdapter.kt

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+package com.example.estdelivery.adapter.out.persistence.user.adapter
+
+import com.example.estdelivery.adapter.out.persistence.user.repository.UserRepository
+import com.example.estdelivery.adapter.out.persistence.user.mapper.toEntity
+import com.example.estdelivery.application.port.out.UserPersistencePort
+import com.example.estdelivery.domain.User
+import org.springframework.stereotype.Component
+
+@Component
+class UserPersistenceAdapter(
+    private val userRepository: UserRepository
+) : UserPersistencePort {
+    override fun save(user: User) {
+        userRepository.save(user.toEntity())
+    }
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/user/entity/UserEntity.kt

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+package com.example.estdelivery.adapter.out.persistence.user.entity
+
+import jakarta.persistence.Entity
+import jakarta.persistence.GeneratedValue
+import jakarta.persistence.GenerationType
+import jakarta.persistence.Id
+import jakarta.persistence.Table
+import java.math.BigDecimal
+
+@Entity
+@Table(name = "user")
+class UserEntity(
+    name: String
+//    balance: BigDecimal
+) {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
+    var id: Long? = null
+        protected set
+
+    var name: String? = name
+        protected set
+
+//    var balance: BigDecimal = balance
+//        protected set
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/user/mapper/UserMapper.kt

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+package com.example.estdelivery.adapter.out.persistence.user.mapper
+
+import com.example.estdelivery.adapter.out.persistence.user.entity.UserEntity
+import com.example.estdelivery.domain.User
+
+fun User.toEntity(): UserEntity {
+    return UserEntity(
+        name = this.name
+//        balance = this.balance
+    )
+}
+
+fun UserEntity.toDomain(): User {
+    return User(
+        id = this.id!!,
+        name = this.name!!,
+//        balance = this.balance
+    )
+}

src/main/kotlin/com/example/estdelivery/adapter/out/persistence/user/repository/UserRepository.kt

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+package com.example.estdelivery.adapter.out.persistence.user.repository
+
+import com.example.estdelivery.adapter.out.persistence.user.entity.UserEntity
+import org.springframework.data.jpa.repository.JpaRepository
+
+interface UserRepository : JpaRepository<UserEntity, Long> {
+}

src/main/kotlin/com/example/estdelivery/application/port/in/ProcessTransactionUseCase.kt

@@ -0,0 +1,14 @@
+package com.example.estdelivery.application.port.`in`
+
+import java.math.BigDecimal
+import java.time.LocalDateTime
+
+interface ProcessTransactionUseCase {
+    fun process(
+        senderId: Long,
+        senderAccountId: Long,
+        receiverId: Long,
+        receiverAccountId: Long,
+        amount: BigDecimal
+    ): BigDecimal
+}

src/main/kotlin/com/example/estdelivery/application/port/in/RegisterAccountUseCase.kt

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+package com.example.estdelivery.application.port.`in`
+
+interface RegisterAccountUseCase {
+    fun registerAccount(userId: Long)
+}