[#7] 판매자 도메인 모델 구현

docs/seller_diagram.mermaid

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+%% 판매자 도메인 ERD
+erDiagram
+    Seller {
+    }
+    SellerRegistrationRequest {
+    }
+

src/main/kotlin/com/nilgil/commerce/common/Email.kt

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+package com.nilgil.commerce.common
+
+import jakarta.persistence.Column
+import jakarta.persistence.Embeddable
+
+@Embeddable
+data class Email(
+    @Column(name = "email")
+    val value: String,
+) {
+    companion object {
+        private val EMAIL_REGEX = Regex("^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}$")
+    }
+
+    init {
+        require(value.matches(EMAIL_REGEX)) { "Invalid email format: $value" }
+    }
+}

src/main/kotlin/com/nilgil/commerce/common/PhoneNumber.kt

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+package com.nilgil.commerce.common
+
+import jakarta.persistence.Column
+import jakarta.persistence.Embeddable
+
+@Embeddable
+data class PhoneNumber(
+    @Column(name = "phone_number")
+    val value: String,
+) {
+    companion object {
+        private val PHONE_NUMBER_REGEX = Regex("^01[016789]-\\d{3,4}-\\d{4}$")
+    }
+
+    init {
+        require(value.matches(PHONE_NUMBER_REGEX)) { "Invalid phone number format: $value" }
+    }
+}

src/main/kotlin/com/nilgil/commerce/seller/Seller.kt

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+package com.nilgil.commerce.seller
+
+import com.nilgil.commerce.common.BaseEntity
+import com.nilgil.commerce.common.Email
+import com.nilgil.commerce.common.PhoneNumber
+import jakarta.persistence.Embedded
+import jakarta.persistence.Entity
+import jakarta.persistence.EnumType
+import jakarta.persistence.Enumerated
+
+@Entity
+class Seller(
+    @Embedded
+    var businessInfo: SellerBusinessInfo,
+    @Embedded
+    var contactInfo: SellerContactInfo,
+    @Embedded
+    var bankAccount: SellerBankAccount,
+    var introduction: String?,
+    var brandLogo: String?,
+) : BaseEntity() {
+    @Enumerated(EnumType.STRING)
+    var status: SellerStatus = SellerStatus.ACTIVE
+
+    fun activate() {
+        this.status = SellerStatus.ACTIVE
+    }
+
+    fun deactivate() {
+        this.status = SellerStatus.INACTIVE
+    }
+
+    fun block() {
+        this.status = SellerStatus.BLOCKED
+    }
+
+    fun unblock() {
+        this.status = SellerStatus.ACTIVE
+    }
+
+    fun changeBusinessInfo(sellerBusinessInfo: SellerBusinessInfo) {
+        this.businessInfo = sellerBusinessInfo
+    }
+
+    fun changeContactInfo(contactInfo: SellerContactInfo) {
+        this.contactInfo = contactInfo
+    }
+
+    fun changeEmail(email: Email) {
+        this.contactInfo = this.contactInfo.copy(email = email)
+    }
+
+    fun changePhoneNumber(phoneNumber: PhoneNumber) {
+        this.contactInfo = this.contactInfo.copy(phoneNumber = phoneNumber)
+    }
+
+    fun changeBankAccount(bankAccount: SellerBankAccount) {
+        this.bankAccount = bankAccount
+    }
+
+    fun changeIntroduction(introduction: String) {
+        this.introduction = introduction
+    }
+
+    fun changeBrandLogo(brandLogo: String) {
+        this.brandLogo = brandLogo
+    }
+}

src/main/kotlin/com/nilgil/commerce/seller/SellerBankAccount.kt

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+package com.nilgil.commerce.seller
+
+import jakarta.persistence.Column
+import jakarta.persistence.Embeddable
+
+@Embeddable
+data class SellerBankAccount(
+    @Column(name = "bank_name")
+    val bankName: String,
+    @Column(name = "bank_account_number")
+    val accountNumber: String,
+    @Column(name = "bank_account_holder")
+    val accountHolder: String,
+)

src/main/kotlin/com/nilgil/commerce/seller/SellerBusinessInfo.kt

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+package com.nilgil.commerce.seller
+
+import jakarta.persistence.Column
+import jakarta.persistence.Embeddable
+
+@Embeddable
+data class SellerBusinessInfo(
+    @Column(name = "business_name")
+    val name: String,
+    @Column(name = "business_type")
+    val type: String,
+    @Column(name = "business_category")
+    val category: String,
+    @Column(name = "business_address")
+    val address: String,
+    @Column(name = "business_registration_number")
+    val registrationNumber: String,
+    @Column(name = "business_registration_certificate")
+    val registrationCertificate: String,
+)

src/main/kotlin/com/nilgil/commerce/seller/SellerContactInfo.kt

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+package com.nilgil.commerce.seller
+
+import com.nilgil.commerce.common.Email
+import com.nilgil.commerce.common.PhoneNumber
+import jakarta.persistence.Embeddable
+import jakarta.persistence.Embedded
+
+@Embeddable
+data class SellerContactInfo(
+    @Embedded
+    val email: Email,
+    @Embedded
+    val phoneNumber: PhoneNumber,
+)

src/main/kotlin/com/nilgil/commerce/seller/SellerRegistrationRequest.kt

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+package com.nilgil.commerce.seller
+
+import com.nilgil.commerce.common.BaseEntity
+import jakarta.persistence.Embedded
+import jakarta.persistence.Entity
+import jakarta.persistence.EnumType
+import jakarta.persistence.Enumerated
+
+@Entity
+class SellerRegistrationRequest(
+    @Embedded
+    val businessInfo: SellerBusinessInfo,
+    @Embedded
+    val contactInfo: SellerContactInfo,
+    @Embedded
+    val bankAccount: SellerBankAccount,
+) : BaseEntity() {
+    @Enumerated(EnumType.STRING)
+    var status: SellerRegistrationStatus = SellerRegistrationStatus.PENDING
+
+    fun approve() {
+        this.status = SellerRegistrationStatus.APPROVED
+    }
+
+    fun reject() {
+        this.status = SellerRegistrationStatus.REJECTED
+    }
+
+    fun cancel() {
+        this.status = SellerRegistrationStatus.CANCELLED
+    }
+}

src/main/kotlin/com/nilgil/commerce/seller/SellerRegistrationStatus.kt

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+package com.nilgil.commerce.seller
+
+enum class SellerRegistrationStatus {
+    APPROVED,
+    PENDING,
+    REJECTED,
+    CANCELLED,
+}

src/main/kotlin/com/nilgil/commerce/seller/SellerStatus.kt

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+package com.nilgil.commerce.seller
+
+enum class SellerStatus {
+    ACTIVE,
+    INACTIVE,
+    BLOCKED,
+}