// =============================================================================
// Startover MVP - Prisma Schema
// =============================================================================
// 설계 원칙:
//   - 내부 PK: BigInt @id @default(autoincrement())
//   - 외부 노출 ID: publicId String @unique @default(cuid())
//   - 금액: Decimal @db.Decimal(14, 2)
//   - 시각: DateTime @db.Timestamptz(6)
//   - Prisma 모델명: PascalCase / 필드명: camelCase
//   - DB 테이블/컬럼: snake_case (@@map / @map)
//   - append-only 모델: updatedAt 없이 createdAt만
//   - soft delete 필요 모델만 deletedAt
//
// Prisma 미지원 제약 (custom SQL migration에서 추가):
//   1. partial unique index (열린 매칭 요청 중복 방지 등)
//   2. CHECK constraints (amount >= 0, exclusiveAreaSqm > 0 등)
//   3. PostGIS GIST index (향후 locationPoint)
// =============================================================================

generator client {
  provider        = "prisma-client-js"
  previewFeatures = ["postgresqlExtensions"]
}

datasource db {
  provider   = "postgresql"
  url        = env("DATABASE_URL")
  extensions = []
}

// =============================================================================
// Enums
// =============================================================================

enum UserRole {
  CLOSING_OWNER
  FOUNDER
  VENDOR_MANAGER
  OPS_MANAGER
  SUBSIDY_OPERATOR
  TRUST_OPERATOR
  FINANCE_OPERATOR
  SUPER_ADMIN

  @@map("user_role")
}

enum UserStatus {
  PENDING_VERIFICATION
  ACTIVE
  SUSPENDED
  DEACTIVATED

  @@map("user_status")
}

enum ProfileType {
  CLOSING_OWNER
  FOUNDER
  VENDOR_MANAGER
  OPERATOR

  @@map("profile_type")
}

enum ConsentType {
  TERMS_OF_SERVICE
  PRIVACY_POLICY_REQUIRED
  PRIVACY_POLICY_MARKETING
  STORE_PUBLICATION_CONSENT
  MATCHED_INFO_DISCLOSURE
  THIRD_PARTY_MATCHED_PARTY
  NOTIFICATION_KAKAO

  @@map("consent_type")
}

enum StoreReviewStatus {
  DRAFT
  SUBMITTED
  REVIEWING
  APPROVED
  REJECTED

  @@map("store_review_status")
}

enum StorePublicationStatus {
  PRIVATE
  RESTRICTED
  PUBLISHED
  UNPUBLISHED

  @@map("store_publication_status")
}

enum StoreDealStatus {
  OPEN
  MATCHING
  RESERVED
  CONTRACTED
  CLOSED
  CANCELLED

  @@map("store_deal_status")
}

enum PhotoCategory {
  EXTERIOR
  INTERIOR
  KITCHEN
  EQUIPMENT
  FLOOR_PLAN
  DOCUMENT

  @@map("photo_category")
}

enum VisibilityScope {
  INTERNAL
  MATCHED_ONLY
  PUBLIC_SUMMARY

  @@map("visibility_scope")
}

enum MatchType {
  ACQUISITION
  DEMOLITION
  INTERIOR

  @@map("match_type")
}

enum MatchRequestStatus {
  OPEN
  REVIEWING
  ACCEPTED
  REJECTED
  CONTRACTING
  EXPIRED
  CANCELLED
  COMPLETED

  @@map("match_request_status")
}

enum MatchSourceType {
  USER_REQUEST
  OPERATOR_RECOMMENDATION
  SYSTEM_MATCH

  @@map("match_source_type")
}

enum SubsidyCaseStatus {
  DRAFT
  ELIGIBILITY_CHECKED
  DOCUMENTS_PENDING
  REVIEWING
  READY_TO_SUBMIT
  SUBMITTED
  APPROVED
  REJECTED
  CLOSED

  @@map("subsidy_case_status")
}

enum EligibilityResult {
  UNKNOWN
  ELIGIBLE
  CONDITIONALLY_ELIGIBLE
  NOT_ELIGIBLE

  @@map("eligibility_result")
}

enum ChecklistItemStatus {
  PENDING
  CHECKED
  NOT_APPLICABLE

  @@map("checklist_item_status")
}

enum DocumentReviewStatus {
  PENDING
  APPROVED
  REJECTED
  RESUBMIT_REQUIRED

  @@map("document_review_status")
}

enum VendorType {
  DEMOLITION
  INTERIOR
  BOTH

  @@map("vendor_type")
}

enum VendorCertificationStatus {
  APPLIED
  REVIEWING
  APPROVED
  REJECTED
  SUSPENDED
  EXPIRED

  @@map("vendor_certification_status")
}

enum ContractType {
  ACQUISITION
  DEMOLITION
  INTERIOR

  @@map("contract_type")
}

enum ContractStatus {
  DRAFT
  GENERATED
  SIGNING
  SIGNED
  ACTIVE
  COMPLETED
  CANCELLED
  TERMINATED

  @@map("contract_status")
}

enum EscrowStatus {
  NOT_STARTED
  DEPOSIT_PENDING
  HOLDING
  RELEASE_REVIEW
  RELEASED
  REFUNDED
  DISPUTED

  @@map("escrow_status")
}

enum EscrowTransactionType {
  DEPOSIT
  RELEASE
  REFUND
  ADJUSTMENT
  HOLD

  @@map("escrow_transaction_type")
}

enum EscrowTransactionStatus {
  PENDING
  PROCESSING
  COMPLETED
  FAILED
  CANCELLED

  @@map("escrow_transaction_status")
}

enum SignerRole {
  STORE_OWNER
  BUYER
  VENDOR
  OPERATOR
  WITNESS

  @@map("signer_role")
}

enum EvidenceType {
  ELECTRONIC_SIGNATURE
  SMS_OTP
  APP_CONSENT
  MANUAL_UPLOAD

  @@map("evidence_type")
}

enum InspectionType {
  PRE_CONTRACT
  MID_WORK
  FINAL_COMPLETION

  @@map("inspection_type")
}

enum InspectionStatus {
  REQUESTED
  SUBMITTED
  REVIEWING
  APPROVED
  REJECTED

  @@map("inspection_status")
}

enum DisputeStatus {
  OPEN
  INVESTIGATING
  MEDIATING
  RESOLVED
  CLOSED

  @@map("dispute_status")
}

enum PolicyType {
  PRIVACY_POLICY
  TERMS_OF_SERVICE
  STORE_LISTING_POLICY
  CONTRACT_TEMPLATE
  SUBSIDY_CHECKLIST

  @@map("policy_type")
}

enum PublishStatus {
  PENDING
  PUBLISHED
  FAILED

  @@map("publish_status")
}

enum RegionType {
  COUNTRY
  SIDO
  SIGUNGU
  ADMIN_DONG
  COMMERCIAL_AREA
  BETA_CLUSTER

  @@map("region_type")
}

enum UrgencyLevel {
  LOW
  MEDIUM
  HIGH
  CRITICAL

  @@map("urgency_level")
}

enum RestroomType {
  PRIVATE
  SHARED
  NONE

  @@map("restroom_type")
}

enum PiiLevel {
  NONE
  LOW
  MEDIUM
  HIGH

  @@map("pii_level")
}

// =============================================================================
// 1. 사용자/권한
// =============================================================================

/// 사용자 기본 계정과 로그인 주체
model User {
  id              BigInt     @id @default(autoincrement()) @map("id")
  publicId        String     @unique @default(cuid()) @map("public_id")
  email           String     @map("email")
  emailNormalized String     @unique @map("email_normalized")
  phone           String?    @map("phone")
  phoneNormalized String?    @map("phone_normalized")
  name            String     @map("name")
  passwordHash    String?    @map("password_hash")
  image           String?    @map("image")
  primaryRole     UserRole   @map("primary_role")
  status          UserStatus @default(PENDING_VERIFICATION) @map("status")
  emailVerifiedAt DateTime?  @map("email_verified_at") @db.Timestamptz(6)
  lastLoginAt     DateTime?  @map("last_login_at") @db.Timestamptz(6)
  createdAt       DateTime   @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt       DateTime   @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  profiles                  UserProfile[]
  consents                  UserConsent[]
  stores                    Store[]
  vendors                   Vendor[]
  matchRequestsAsRequester  MatchRequest[]         @relation("MatchRequesterUser")
  matchRequestsAsOperator   MatchRequest[]         @relation("MatchOperatorAssignee")
  subsidyCasesAsApplicant   SubsidyCase[]          @relation("SubsidyApplicantUser")
  subsidyCasesAsOperator    SubsidyCase[]          @relation("SubsidyOperatorAssignee")
  subsidyChecklistCheckedBy SubsidyChecklistItem[] @relation("ChecklistCheckedByUser")
  subsidyDocsUploadedBy     SubsidyDocument[]      @relation("SubsidyDocUploadedByUser")
  subsidyDocsReviewedBy     SubsidyDocument[]      @relation("SubsidyDocReviewedByUser")
  storePhotosUploadedBy     StorePhoto[]
  contractsCreatedBy        Contract[]             @relation("ContractCreatedByUser")
  contractsAsStoreOwner     Contract[]             @relation("ContractStoreOwnerUser")
  contractsAsBuyer          Contract[]             @relation("ContractBuyerUser")
  contractVersionsCreatedBy ContractVersion[]
  signaturesAsSigner        SignatureEvidence[]
  escrowRequested           EscrowTransaction[]    @relation("EscrowRequestedByUser")
  escrowApproved            EscrowTransaction[]    @relation("EscrowApprovedByUser")
  inspectionsSubmittedBy    InspectionRecord[]     @relation("InspectionSubmittedByUser")
  inspectionsReviewedBy     InspectionRecord[]     @relation("InspectionReviewedByUser")
  disputesOpenedBy          DisputeCase[]          @relation("DisputeOpenedByUser")
  disputesAssignedOperator  DisputeCase[]          @relation("DisputeAssignedOperator")
  disputesResolvedBy        DisputeCase[]          @relation("DisputeResolvedByUser")
  certificationReviewedBy   VendorCertification[]  @relation("CertificationReviewedByUser")
  auditLogs                 AuditLog[]
  accounts                  Account[]
  invitesCreated            InviteToken[]          @relation("InviteCreator")

  @@index([primaryRole, status], map: "idx_user_role_status")
  @@map("users")
}

/// 역할별 추가 프로필 정보 확장 테이블
model UserProfile {
  id                         BigInt      @id @default(autoincrement()) @map("id")
  userId                     BigInt      @map("user_id")
  profileType                ProfileType @map("profile_type")
  businessRegistrationNumber String?     @map("business_registration_number")
  metadataJson               Json?       @map("metadata_json")
  createdAt                  DateTime    @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt                  DateTime    @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  user User @relation(fields: [userId], references: [id])

  @@index([userId], map: "idx_user_profile_user_id")
  @@map("user_profiles")
}

/// 개인정보/마케팅/제3자 제공 동의를 버전 단위로 저장
model UserConsent {
  id              BigInt      @id @default(autoincrement()) @map("id")
  userId          BigInt      @map("user_id")
  consentType     ConsentType @map("consent_type")
  policyVersionId BigInt      @map("policy_version_id")
  isGranted       Boolean     @map("is_granted")
  grantedAt       DateTime    @map("granted_at") @db.Timestamptz(6)
  revokedAt       DateTime?   @map("revoked_at") @db.Timestamptz(6)

  // Relations
  user          User          @relation(fields: [userId], references: [id])
  policyVersion PolicyVersion @relation(fields: [policyVersionId], references: [id])

  @@index([userId, consentType], map: "idx_user_consent_user_type")
  @@map("user_consents")
}

/// Auth.js 소셜 로그인 계정 연동
model Account {
  id                BigInt  @id @default(autoincrement()) @map("id")
  userId            BigInt  @map("user_id")
  type              String  @map("type")
  provider          String  @map("provider")
  providerAccountId String  @map("provider_account_id")
  refresh_token     String? @map("refresh_token") @db.Text
  access_token      String? @map("access_token") @db.Text
  expires_at        Int?    @map("expires_at")
  token_type        String? @map("token_type")
  scope             String? @map("scope")
  id_token          String? @map("id_token") @db.Text
  session_state     String? @map("session_state")

  user User @relation(fields: [userId], references: [id], onDelete: Cascade)

  @@unique([provider, providerAccountId])
  @@map("accounts")
}

/// 이메일 인증 토큰
model VerificationToken {
  identifier String   @map("identifier")
  token      String   @unique @map("token")
  expires    DateTime @map("expires") @db.Timestamptz(6)

  @@id([identifier, token])
  @@map("verification_tokens")
}

/// 운영자 초대 토큰
model InviteToken {
  id        BigInt    @id @default(autoincrement()) @map("id")
  email     String    @map("email")
  role      UserRole  @map("role")
  token     String    @unique @default(cuid()) @map("token")
  expires   DateTime  @map("expires") @db.Timestamptz(6)
  usedAt    DateTime? @map("used_at") @db.Timestamptz(6)
  createdBy BigInt    @map("created_by")
  createdAt DateTime  @default(now()) @map("created_at") @db.Timestamptz(6)

  creator User @relation("InviteCreator", fields: [createdBy], references: [id])

  @@map("invite_tokens")
}

// =============================================================================
// 2. 매장 공급 도메인
// =============================================================================

/// 폐업자가 등록한 매장의 중심 aggregate
model Store {
  id                BigInt                 @id @default(autoincrement()) @map("id")
  publicId          String                 @unique @default(cuid()) @map("public_id")
  ownerUserId       BigInt                 @map("owner_user_id")
  listingTitle      String                 @map("listing_title")
  publicSummary     String?                @map("public_summary")
  industryLeafId    BigInt?                @map("industry_leaf_id")
  regionClusterId   BigInt?                @map("region_cluster_id")
  regionLeafId      BigInt?                @map("region_leaf_id")
  roadAddress       String                 @map("road_address")
  detailAddress     String?                @map("detail_address")
  latitude          Decimal?               @map("latitude") @db.Decimal(10, 7)
  longitude         Decimal?               @map("longitude") @db.Decimal(10, 7)
  reviewStatus      StoreReviewStatus      @default(DRAFT) @map("review_status")
  publicationStatus StorePublicationStatus @default(PRIVATE) @map("publication_status")
  dealStatus        StoreDealStatus        @default(OPEN) @map("deal_status")
  policyVersionId   BigInt?                @map("policy_version_id")
  publishedAt       DateTime?              @map("published_at") @db.Timestamptz(6)
  approvedAt        DateTime?              @map("approved_at") @db.Timestamptz(6)
  rejectedAt        DateTime?              @map("rejected_at") @db.Timestamptz(6)
  createdAt         DateTime               @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt         DateTime               @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  ownerUser     User              @relation(fields: [ownerUserId], references: [id])
  industryLeaf  IndustryTaxonomy? @relation(fields: [industryLeafId], references: [id])
  regionCluster RegionHierarchy?  @relation("StoreRegionCluster", fields: [regionClusterId], references: [id])
  regionLeaf    RegionHierarchy?  @relation("StoreRegionLeaf", fields: [regionLeafId], references: [id])
  policyVersion PolicyVersion?    @relation(fields: [policyVersionId], references: [id])

  lease         StoreLease?
  facility      StoreFacility?
  lifecycle     StoreLifecycle?
  photos        StorePhoto[]
  matchRequests MatchRequest[]
  subsidyCases  SubsidyCase[]
  contracts     Contract[]

  @@index([ownerUserId, createdAt], map: "idx_store_owner_created")
  @@index([reviewStatus, createdAt], map: "idx_store_review_created")
  @@index([regionClusterId, industryLeafId, publicationStatus, dealStatus, publishedAt], map: "idx_store_search")
  @@map("stores")
}

/// 임대/권리금 관련 정보 (Store 1:1 확장)
/// CHECK constraint: amount fields >= 0 (custom SQL migration)
model StoreLease {
  id                   BigInt    @id @default(autoincrement()) @map("id")
  storeId              BigInt    @unique @map("store_id")
  depositAmount        Decimal?  @map("deposit_amount") @db.Decimal(14, 2)
  monthlyRentAmount    Decimal?  @map("monthly_rent_amount") @db.Decimal(14, 2)
  maintenanceFeeAmount Decimal?  @map("maintenance_fee_amount") @db.Decimal(14, 2)
  premiumAmount        Decimal?  @map("premium_amount") @db.Decimal(14, 2)
  transferable         Boolean?  @map("transferable")
  leaseExpiresAt       DateTime? @map("lease_expires_at") @db.Timestamptz(6)
  remainingLeaseMonths Int?      @map("remaining_lease_months")
  createdAt            DateTime  @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt            DateTime  @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  store Store @relation(fields: [storeId], references: [id])

  @@map("store_leases")
}

/// F&B 필터링과 인수 판단에 필요한 설비 정보 (Store 1:1 확장)
/// CHECK constraint: exclusiveAreaSqm > 0 (custom SQL migration)
model StoreFacility {
  id                      BigInt        @id @default(autoincrement()) @map("id")
  storeId                 BigInt        @unique @map("store_id")
  exclusiveAreaSqm        Decimal?      @map("exclusive_area_sqm") @db.Decimal(8, 2)
  floorLevel              Int?          @map("floor_level")
  seatCount               Int?          @map("seat_count")
  hasGas                  Boolean?      @map("has_gas")
  hasDrainage             Boolean?      @map("has_drainage")
  hasDuct                 Boolean?      @map("has_duct")
  electricCapacityKw      Decimal?      @map("electric_capacity_kw") @db.Decimal(6, 1)
  kitchenEquipmentSummary String?       @map("kitchen_equipment_summary")
  parkingCount            Int?          @map("parking_count")
  restroomType            RestroomType? @map("restroom_type")
  createdAt               DateTime      @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt               DateTime      @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  store Store @relation(fields: [storeId], references: [id])

  @@map("store_facilities")
}

/// 폐업/인수/철거 일정 정보 (Store 1:1 확장)
model StoreLifecycle {
  id                    BigInt        @id @default(autoincrement()) @map("id")
  storeId               BigInt        @unique @map("store_id")
  closingPlannedAt      DateTime?     @map("closing_planned_at") @db.Timestamptz(6)
  takeoverAvailableAt   DateTime?     @map("takeover_available_at") @db.Timestamptz(6)
  demolitionPreferredAt DateTime?     @map("demolition_preferred_at") @db.Timestamptz(6)
  vacateByAt            DateTime?     @map("vacate_by_at") @db.Timestamptz(6)
  isCurrentlyOperating  Boolean?      @map("is_currently_operating")
  urgencyLevel          UrgencyLevel? @map("urgency_level")
  createdAt             DateTime      @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt             DateTime      @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  store Store @relation(fields: [storeId], references: [id])

  @@map("store_lifecycles")
}

/// 매장 사진과 공개 범위 (append-only)
model StorePhoto {
  id               BigInt          @id @default(autoincrement()) @map("id")
  storeId          BigInt          @map("store_id")
  storageKey       String          @map("storage_key")
  photoCategory    PhotoCategory   @map("photo_category")
  visibilityScope  VisibilityScope @default(INTERNAL) @map("visibility_scope")
  sortOrder        Int             @default(0) @map("sort_order")
  uploadedByUserId BigInt          @map("uploaded_by_user_id")
  checksumSha256   String?         @map("checksum_sha256")
  width            Int?            @map("width")
  height           Int?            @map("height")
  takenAt          DateTime?       @map("taken_at") @db.Timestamptz(6)
  isRepresentative Boolean         @default(false) @map("is_representative")
  createdAt        DateTime        @default(now()) @map("created_at") @db.Timestamptz(6)

  // Relations
  store          Store @relation(fields: [storeId], references: [id])
  uploadedByUser User  @relation(fields: [uploadedByUserId], references: [id])

  @@index([storeId, sortOrder], map: "idx_store_photo_store_sort")
  @@map("store_photos")
}

// =============================================================================
// 3. 매칭 도메인
// =============================================================================

/// 창업자/업체/운영자 추천 기반 매칭 요청
/// matchType에 따라 필요한 FK가 달라지므로 raw SQL CHECK 제약 추가 (custom SQL migration)
/// partial unique index: 열린 상태에서 동일 사용자/동일 매장/동일 요청 타입 중복 금지 (custom SQL migration)
model MatchRequest {
  id                 BigInt             @id @default(autoincrement()) @map("id")
  publicId           String             @unique @default(cuid()) @map("public_id")
  storeId            BigInt             @map("store_id")
  matchType          MatchType          @map("match_type")
  requesterUserId    BigInt?            @map("requester_user_id")
  requesterVendorId  BigInt?            @map("requester_vendor_id")
  sourceType         MatchSourceType    @map("source_type")
  status             MatchRequestStatus @default(OPEN) @map("status")
  operatorAssigneeId BigInt?            @map("operator_assignee_id")
  message            String?            @map("message")
  decisionReasonCode String?            @map("decision_reason_code")
  acceptedAt         DateTime?          @map("accepted_at") @db.Timestamptz(6)
  rejectedAt         DateTime?          @map("rejected_at") @db.Timestamptz(6)
  closedAt           DateTime?          @map("closed_at") @db.Timestamptz(6)
  createdAt          DateTime           @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt          DateTime           @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  store            Store   @relation(fields: [storeId], references: [id])
  requesterUser    User?   @relation("MatchRequesterUser", fields: [requesterUserId], references: [id])
  requesterVendor  Vendor? @relation(fields: [requesterVendorId], references: [id])
  operatorAssignee User?   @relation("MatchOperatorAssignee", fields: [operatorAssigneeId], references: [id])

  contract Contract?

  @@index([storeId, status, createdAt], map: "idx_match_store_status_created")
  @@index([requesterUserId, status, createdAt], map: "idx_match_requester_status_created")
  @@index([requesterVendorId, status, createdAt], map: "idx_match_vendor_status_created")
  @@map("match_requests")
}

// =============================================================================
// 4. 지원금 도메인
// =============================================================================

/// 매장 기준 지원금 진행 건
/// partial unique index: 같은 storeId + programCode 조합의 active case는 1개 (custom SQL migration)
model SubsidyCase {
  id                      BigInt            @id @default(autoincrement()) @map("id")
  publicId                String            @unique @default(cuid()) @map("public_id")
  storeId                 BigInt            @map("store_id")
  applicantUserId         BigInt            @map("applicant_user_id")
  programCode             String            @map("program_code")
  status                  SubsidyCaseStatus @default(DRAFT) @map("status")
  eligibilityResult       EligibilityResult @default(UNKNOWN) @map("eligibility_result")
  policyVersionId         BigInt?           @map("policy_version_id")
  operatorAssigneeId      BigInt?           @map("operator_assignee_id")
  checklistVersionCode    String?           @map("checklist_version_code")
  submissionReadyAt       DateTime?         @map("submission_ready_at") @db.Timestamptz(6)
  submittedAt             DateTime?         @map("submitted_at") @db.Timestamptz(6)
  reviewedAt              DateTime?         @map("reviewed_at") @db.Timestamptz(6)
  rejectionReasonCode     String?           @map("rejection_reason_code")
  eligibilitySnapshotJson Json?             @map("eligibility_snapshot_json")
  createdAt               DateTime          @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt               DateTime          @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  store            Store          @relation(fields: [storeId], references: [id])
  applicantUser    User           @relation("SubsidyApplicantUser", fields: [applicantUserId], references: [id])
  policyVersion    PolicyVersion? @relation(fields: [policyVersionId], references: [id])
  operatorAssignee User?          @relation("SubsidyOperatorAssignee", fields: [operatorAssigneeId], references: [id])

  checklistItems SubsidyChecklistItem[]
  documents      SubsidyDocument[]

  @@index([storeId, status, createdAt], map: "idx_subsidy_store_status_created")
  @@index([applicantUserId, status, createdAt], map: "idx_subsidy_applicant_status_created")
  @@index([operatorAssigneeId, status, updatedAt], map: "idx_subsidy_operator_status_updated")
  @@map("subsidy_cases")
}

/// 정책 버전에 따라 생성된 체크리스트 항목
model SubsidyChecklistItem {
  id              BigInt              @id @default(autoincrement()) @map("id")
  subsidyCaseId   BigInt              @map("subsidy_case_id")
  itemCode        String              @map("item_code")
  isRequired      Boolean             @default(true) @map("is_required")
  status          ChecklistItemStatus @default(PENDING) @map("status")
  checkedAt       DateTime?           @map("checked_at") @db.Timestamptz(6)
  checkedByUserId BigInt?             @map("checked_by_user_id")

  // Relations
  subsidyCase   SubsidyCase @relation(fields: [subsidyCaseId], references: [id])
  checkedByUser User?       @relation("ChecklistCheckedByUser", fields: [checkedByUserId], references: [id])

  @@index([subsidyCaseId], map: "idx_subsidy_checklist_case")
  @@map("subsidy_checklist_items")
}

/// 지원금 첨부 서류와 검토 상태
model SubsidyDocument {
  id               BigInt               @id @default(autoincrement()) @map("id")
  subsidyCaseId    BigInt               @map("subsidy_case_id")
  documentTypeCode String               @map("document_type_code")
  storageKey       String               @map("storage_key")
  reviewStatus     DocumentReviewStatus @default(PENDING) @map("review_status")
  uploadedByUserId BigInt               @map("uploaded_by_user_id")
  uploadedAt       DateTime             @default(now()) @map("uploaded_at") @db.Timestamptz(6)
  reviewedAt       DateTime?            @map("reviewed_at") @db.Timestamptz(6)
  reviewedByUserId BigInt?              @map("reviewed_by_user_id")

  // Relations
  subsidyCase    SubsidyCase @relation(fields: [subsidyCaseId], references: [id])
  uploadedByUser User        @relation("SubsidyDocUploadedByUser", fields: [uploadedByUserId], references: [id])
  reviewedByUser User?       @relation("SubsidyDocReviewedByUser", fields: [reviewedByUserId], references: [id])

  @@index([subsidyCaseId], map: "idx_subsidy_doc_case")
  @@map("subsidy_documents")
}

// =============================================================================
// 5. 업체 도메인
// =============================================================================

/// 철거/인테리어 업체의 기본 프로필
model Vendor {
  id                         BigInt                    @id @default(autoincrement()) @map("id")
  publicId                   String                    @unique @default(cuid()) @map("public_id")
  ownerUserId                BigInt                    @map("owner_user_id")
  vendorType                 VendorType                @map("vendor_type")
  businessName               String                    @map("business_name")
  contactName                String                    @map("contact_name")
  contactPhoneNormalized     String?                   @map("contact_phone_normalized")
  businessRegistrationNumber String?                   @map("business_registration_number")
  serviceIntro               String?                   @map("service_intro")
  primaryRegionId            BigInt?                   @map("primary_region_id")
  certificationStatus        VendorCertificationStatus @default(APPLIED) @map("certification_status")
  latestCertificationId      BigInt?                   @map("latest_certification_id")
  deletedAt                  DateTime?                 @map("deleted_at") @db.Timestamptz(6)
  createdAt                  DateTime                  @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt                  DateTime                  @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  ownerUser     User             @relation(fields: [ownerUserId], references: [id])
  primaryRegion RegionHierarchy? @relation(fields: [primaryRegionId], references: [id])

  coverageRegions VendorCoverageRegion[]
  certifications  VendorCertification[]
  matchRequests   MatchRequest[]
  contracts       Contract[]

  @@index([ownerUserId], map: "idx_vendor_owner")
  @@index([vendorType, certificationStatus, createdAt], map: "idx_vendor_type_cert_created")
  @@map("vendors")
}

/// 업체 서비스 가능 지역 (다대다 조인)
model VendorCoverageRegion {
  id        BigInt   @id @default(autoincrement()) @map("id")
  vendorId  BigInt   @map("vendor_id")
  regionId  BigInt   @map("region_id")
  isPrimary Boolean  @default(false) @map("is_primary")
  createdAt DateTime @default(now()) @map("created_at") @db.Timestamptz(6)

  // Relations
  vendor Vendor          @relation(fields: [vendorId], references: [id])
  region RegionHierarchy @relation(fields: [regionId], references: [id])

  @@unique([vendorId, regionId], map: "uq_vendor_coverage_region")
  @@index([regionId, vendorId], map: "idx_vendor_coverage_region_region")
  @@map("vendor_coverage_regions")
}

/// 업체 인증 이력
model VendorCertification {
  id                    BigInt                    @id @default(autoincrement()) @map("id")
  vendorId              BigInt                    @map("vendor_id")
  status                VendorCertificationStatus @map("status")
  requestedScopeCode    String?                   @map("requested_scope_code")
  documentChecklistJson Json?                     @map("document_checklist_json")
  appliedAt             DateTime                  @default(now()) @map("applied_at") @db.Timestamptz(6)
  reviewedAt            DateTime?                 @map("reviewed_at") @db.Timestamptz(6)
  reviewedByUserId      BigInt?                   @map("reviewed_by_user_id")
  reasonCode            String?                   @map("reason_code")
  validUntil            DateTime?                 @map("valid_until") @db.Timestamptz(6)
  createdAt             DateTime                  @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt             DateTime                  @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  vendor         Vendor @relation(fields: [vendorId], references: [id])
  reviewedByUser User?  @relation("CertificationReviewedByUser", fields: [reviewedByUserId], references: [id])

  @@index([vendorId, status], map: "idx_vendor_cert_vendor_status")
  @@map("vendor_certifications")
}

// =============================================================================
// 6. 신뢰 인프라 도메인
// =============================================================================

/// 매칭에서 생성된 계약의 현재 상태와 참여자
model Contract {
  id               BigInt         @id @default(autoincrement()) @map("id")
  publicId         String         @unique @default(cuid()) @map("public_id")
  matchRequestId   BigInt         @unique @map("match_request_id")
  storeId          BigInt         @map("store_id")
  contractType     ContractType   @map("contract_type")
  status           ContractStatus @default(DRAFT) @map("status")
  createdByUserId  BigInt         @map("created_by_user_id")
  storeOwnerUserId BigInt         @map("store_owner_user_id")
  buyerUserId      BigInt?        @map("buyer_user_id")
  vendorId         BigInt?        @map("vendor_id")
  policyVersionId  BigInt?        @map("policy_version_id")
  templateCode     String?        @map("template_code")
  currentVersionId BigInt?        @map("current_version_id")
  escrowStatus     EscrowStatus   @default(NOT_STARTED) @map("escrow_status")
  signedAt         DateTime?      @map("signed_at") @db.Timestamptz(6)
  effectiveAt      DateTime?      @map("effective_at") @db.Timestamptz(6)
  completedAt      DateTime?      @map("completed_at") @db.Timestamptz(6)
  cancelledAt      DateTime?      @map("cancelled_at") @db.Timestamptz(6)
  createdAt        DateTime       @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt        DateTime       @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  matchRequest   MatchRequest   @relation(fields: [matchRequestId], references: [id])
  store          Store          @relation(fields: [storeId], references: [id])
  createdByUser  User           @relation("ContractCreatedByUser", fields: [createdByUserId], references: [id])
  storeOwnerUser User           @relation("ContractStoreOwnerUser", fields: [storeOwnerUserId], references: [id])
  buyerUser      User?          @relation("ContractBuyerUser", fields: [buyerUserId], references: [id])
  vendor         Vendor?        @relation(fields: [vendorId], references: [id])
  policyVersion  PolicyVersion? @relation(fields: [policyVersionId], references: [id])

  versions           ContractVersion[]
  signatures         SignatureEvidence[]
  escrowTransactions EscrowTransaction[]
  inspections        InspectionRecord[]
  disputes           DisputeCase[]

  @@index([storeId, status, createdAt], map: "idx_contract_store_status_created")
  @@index([vendorId, status, createdAt], map: "idx_contract_vendor_status_created")
  @@index([buyerUserId, status, createdAt], map: "idx_contract_buyer_status_created")
  @@map("contracts")
}

/// 계약 문서 불변 버전 (append-only)
model ContractVersion {
  id                   BigInt   @id @default(autoincrement()) @map("id")
  contractId           BigInt   @map("contract_id")
  versionNo            Int      @map("version_no")
  templateCode         String?  @map("template_code")
  templateVersion      String?  @map("template_version")
  documentStorageKey   String?  @map("document_storage_key")
  documentSha256       String?  @map("document_sha256")
  renderedSnapshotJson Json?    @map("rendered_snapshot_json")
  changeSummary        String?  @map("change_summary")
  createdByUserId      BigInt   @map("created_by_user_id")
  createdAt            DateTime @default(now()) @map("created_at") @db.Timestamptz(6)

  // Relations
  contract      Contract            @relation(fields: [contractId], references: [id])
  createdByUser User                @relation(fields: [createdByUserId], references: [id])
  signatures    SignatureEvidence[]

  @@unique([contractId, versionNo], map: "uq_contract_version")
  @@map("contract_versions")
}

/// 전자서명 또는 동의 증적 (append-only)
model SignatureEvidence {
  id                BigInt       @id @default(autoincrement()) @map("id")
  contractId        BigInt       @map("contract_id")
  contractVersionId BigInt       @map("contract_version_id")
  signerRole        SignerRole   @map("signer_role")
  signerUserId      BigInt       @map("signer_user_id")
  evidenceType      EvidenceType @map("evidence_type")
  providerCode      String?      @map("provider_code")
  providerEventId   String?      @unique @map("provider_event_id")
  signedAt          DateTime     @map("signed_at") @db.Timestamptz(6)
  signatureHash     String?      @map("signature_hash")
  payloadJson       Json?        @map("payload_json")
  ipAddress         String?      @map("ip_address")
  userAgent         String?      @map("user_agent")
  createdAt         DateTime     @default(now()) @map("created_at") @db.Timestamptz(6)

  // Relations
  contract        Contract        @relation(fields: [contractId], references: [id])
  contractVersion ContractVersion @relation(fields: [contractVersionId], references: [id])
  signerUser      User            @relation(fields: [signerUserId], references: [id])

  @@index([contractVersionId, signedAt], map: "idx_signature_version_signed")
  @@map("signature_evidences")
}

/// 결제/환불/정산/보류 관련 금전 이벤트 immutable ledger (append-only)
/// CHECK constraint: amount >= 0 (custom SQL migration)
model EscrowTransaction {
  id                    BigInt                  @id @default(autoincrement()) @map("id")
  contractId            BigInt                  @map("contract_id")
  transactionType       EscrowTransactionType   @map("transaction_type")
  providerCode          String?                 @map("provider_code")
  providerTransactionId String?                 @unique @map("provider_transaction_id")
  status                EscrowTransactionStatus @default(PENDING) @map("status")
  amount                Decimal                 @map("amount") @db.Decimal(14, 2)
  currencyCode          String                  @default("KRW") @map("currency_code")
  requestedByUserId     BigInt?                 @map("requested_by_user_id")
  approvedByUserId      BigInt?                 @map("approved_by_user_id")
  idempotencyKey        String                  @unique @map("idempotency_key")
  rawPayloadJson        Json?                   @map("raw_payload_json")
  occurredAt            DateTime                @map("occurred_at") @db.Timestamptz(6)
  createdAt             DateTime                @default(now()) @map("created_at") @db.Timestamptz(6)

  // Relations
  contract        Contract @relation(fields: [contractId], references: [id])
  requestedByUser User?    @relation("EscrowRequestedByUser", fields: [requestedByUserId], references: [id])
  approvedByUser  User?    @relation("EscrowApprovedByUser", fields: [approvedByUserId], references: [id])

  @@index([contractId, occurredAt], map: "idx_escrow_contract_occurred")
  @@index([status, occurredAt], map: "idx_escrow_status_occurred")
  @@map("escrow_transactions")
}

/// 검수 요청과 검토 결과
model InspectionRecord {
  id                  BigInt           @id @default(autoincrement()) @map("id")
  contractId          BigInt           @map("contract_id")
  inspectionType      InspectionType   @map("inspection_type")
  status              InspectionStatus @default(REQUESTED) @map("status")
  submittedByUserId   BigInt?          @map("submitted_by_user_id")
  submittedAt         DateTime?        @map("submitted_at") @db.Timestamptz(6)
  reviewedByUserId    BigInt?          @map("reviewed_by_user_id")
  reviewedAt          DateTime?        @map("reviewed_at") @db.Timestamptz(6)
  reviewMemo          String?          @map("review_memo")
  evidencePayloadJson Json?            @map("evidence_payload_json")
  createdAt           DateTime         @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt           DateTime         @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  contract        Contract @relation(fields: [contractId], references: [id])
  submittedByUser User?    @relation("InspectionSubmittedByUser", fields: [submittedByUserId], references: [id])
  reviewedByUser  User?    @relation("InspectionReviewedByUser", fields: [reviewedByUserId], references: [id])

  @@index([contractId, status], map: "idx_inspection_contract_status")
  @@map("inspection_records")
}

/// 분쟁 접수, 조사, 중재, 종료 상태
/// partial unique index: 계약당 active dispute는 1건 (custom SQL migration)
model DisputeCase {
  id                  BigInt        @id @default(autoincrement()) @map("id")
  contractId          BigInt        @map("contract_id")
  openedByUserId      BigInt        @map("opened_by_user_id")
  assignedOperatorId  BigInt?       @map("assigned_operator_id")
  status              DisputeStatus @default(OPEN) @map("status")
  reasonCode          String        @map("reason_code")
  description         String?       @map("description")
  resolutionCode      String?       @map("resolution_code")
  resolutionSummary   String?       @map("resolution_summary")
  evidencePayloadJson Json?         @map("evidence_payload_json")
  openedAt            DateTime      @default(now()) @map("opened_at") @db.Timestamptz(6)
  resolvedAt          DateTime?     @map("resolved_at") @db.Timestamptz(6)
  resolvedByUserId    BigInt?       @map("resolved_by_user_id")
  createdAt           DateTime      @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt           DateTime      @updatedAt @map("updated_at") @db.Timestamptz(6)

  // Relations
  contract         Contract @relation(fields: [contractId], references: [id])
  openedByUser     User     @relation("DisputeOpenedByUser", fields: [openedByUserId], references: [id])
  assignedOperator User?    @relation("DisputeAssignedOperator", fields: [assignedOperatorId], references: [id])
  resolvedByUser   User?    @relation("DisputeResolvedByUser", fields: [resolvedByUserId], references: [id])

  @@index([contractId, status, openedAt], map: "idx_dispute_contract_status_opened")
  @@index([assignedOperatorId, status, openedAt], map: "idx_dispute_operator_status_opened")
  @@map("dispute_cases")
}

// =============================================================================
// 7. 운영/분석 도메인
// =============================================================================

/// 정책 버전을 모델에 귀속시키기 위한 기준 테이블
model PolicyVersion {
  id            BigInt     @id @default(autoincrement()) @map("id")
  policyType    PolicyType @map("policy_type")
  versionCode   String     @map("version_code")
  contentHash   String     @map("content_hash")
  effectiveFrom DateTime   @map("effective_from") @db.Timestamptz(6)
  isActive      Boolean    @default(true) @map("is_active")
  createdAt     DateTime   @default(now()) @map("created_at") @db.Timestamptz(6)

  // Relations
  stores       Store[]
  contracts    Contract[]
  subsidyCases SubsidyCase[]
  userConsents UserConsent[]

  @@index([policyType, isActive], map: "idx_policy_type_active")
  @@map("policy_versions")
}

/// 누가 무엇을 왜 바꿨는지를 운영 감사 기준으로 남긴다 (append-only)
model AuditLog {
  id            BigInt   @id @default(autoincrement()) @map("id")
  resourceType  String   @map("resource_type")
  resourceId    String   @map("resource_id")
  actionType    String   @map("action_type")
  actorUserId   BigInt?  @map("actor_user_id")
  actorRole     String?  @map("actor_role")
  reasonCode    String?  @map("reason_code")
  memo          String?  @map("memo")
  beforeJson    Json?    @map("before_json")
  afterJson     Json?    @map("after_json")
  requestId     String?  @map("request_id")
  correlationId String?  @map("correlation_id")
  ipHash        String?  @map("ip_hash")
  userAgent     String?  @map("user_agent")
  createdAt     DateTime @default(now()) @map("created_at") @db.Timestamptz(6)

  // Relations
  actorUser User? @relation(fields: [actorUserId], references: [id])

  @@index([resourceType, resourceId, createdAt], map: "idx_audit_resource_created")
  @@index([actorUserId, createdAt], map: "idx_audit_actor_created")
  @@index([actionType, createdAt], map: "idx_audit_action_created")
  @@map("audit_logs")
}

/// 도메인 이벤트를 append-only로 보관
model EventLog {
  id            BigInt   @id @default(autoincrement()) @map("id")
  aggregateType String   @map("aggregate_type")
  aggregateId   String   @map("aggregate_id")
  eventName     String   @map("event_name")
  eventVersion  Int      @default(1) @map("event_version")
  eventKey      String   @unique @map("event_key")
  payloadJson   Json     @map("payload_json")
  actorUserId   BigInt?  @map("actor_user_id")
  causationId   String?  @map("causation_id")
  correlationId String?  @map("correlation_id")
  piiLevel      PiiLevel @default(NONE) @map("pii_level")
  occurredAt    DateTime @map("occurred_at") @db.Timestamptz(6)
  recordedAt    DateTime @default(now()) @map("recorded_at") @db.Timestamptz(6)

  @@index([aggregateType, aggregateId, occurredAt], map: "idx_event_aggregate_occurred")
  @@index([eventName, occurredAt], map: "idx_event_name_occurred")
  @@map("event_logs")
}

/// 외부 발행/재시도/실패 처리를 EventLog와 분리해 관리
model OutboxEvent {
  id            BigInt        @id @default(autoincrement()) @map("id")
  aggregateType String        @map("aggregate_type")
  aggregateId   String        @map("aggregate_id")
  eventName     String        @map("event_name")
  payloadJson   Json          @map("payload_json")
  publishStatus PublishStatus @default(PENDING) @map("publish_status")
  availableAt   DateTime      @default(now()) @map("available_at") @db.Timestamptz(6)
  retryCount    Int           @default(0) @map("retry_count")
  lastError     String?       @map("last_error")
  createdAt     DateTime      @default(now()) @map("created_at") @db.Timestamptz(6)

  @@index([publishStatus, availableAt], map: "idx_outbox_status_available")
  @@map("outbox_events")
}

/// 웹훅과 중복 요청 방지를 위한 키 저장소
model IdempotencyKey {
  id             BigInt    @id @default(autoincrement()) @map("id")
  scope          String    @map("scope")
  idempotencyKey String    @map("idempotency_key")
  requestHash    String?   @map("request_hash")
  responseHash   String?   @map("response_hash")
  expiresAt      DateTime? @map("expires_at") @db.Timestamptz(6)
  createdAt      DateTime  @default(now()) @map("created_at") @db.Timestamptz(6)

  @@unique([scope, idempotencyKey], map: "uq_idempotency_scope_key")
  @@map("idempotency_keys")
}

/// 기능 플래그 토글
model FeatureFlag {
  id          BigInt    @id @default(autoincrement()) @map("id")
  flagKey     String    @unique @map("flag_key")
  isEnabled   Boolean   @default(false) @map("is_enabled")
  description String?   @map("description")
  enabledAt   DateTime? @map("enabled_at") @db.Timestamptz(6)
  disabledAt  DateTime? @map("disabled_at") @db.Timestamptz(6)
  createdAt   DateTime  @default(now()) @map("created_at") @db.Timestamptz(6)
  updatedAt   DateTime  @updatedAt @map("updated_at") @db.Timestamptz(6)

  @@map("feature_flags")
}

// =============================================================================
// 8. 마스터 데이터
// =============================================================================

/// 지역 계층 마스터 (단일 계층 테이블 + self relation)
model RegionHierarchy {
  id            BigInt     @id @default(autoincrement()) @map("id")
  code          String     @unique @map("code")
  nameKo        String     @map("name_ko")
  fullNameKo    String?    @map("full_name_ko")
  regionType    RegionType @map("region_type")
  parentId      BigInt?    @map("parent_id")
  depth         Int        @default(0) @map("depth")
  pathCode      String?    @map("path_code")
  sortOrder     Int        @default(0) @map("sort_order")
  isActive      Boolean    @default(true) @map("is_active")
  isBetaEnabled Boolean    @default(false) @map("is_beta_enabled")
  latitude      Decimal?   @map("latitude") @db.Decimal(10, 7)
  longitude     Decimal?   @map("longitude") @db.Decimal(10, 7)
  externalCode  String?    @map("external_code")

  // Self relation
  parent   RegionHierarchy?  @relation("RegionParentChild", fields: [parentId], references: [id])
  children RegionHierarchy[] @relation("RegionParentChild")

  // Relations
  storesAsCluster       Store[]                @relation("StoreRegionCluster")
  storesAsLeaf          Store[]                @relation("StoreRegionLeaf")
  vendorsPrimaryRegion  Vendor[]
  vendorCoverageRegions VendorCoverageRegion[]

  @@index([parentId], map: "idx_region_parent")
  @@index([regionType, isActive], map: "idx_region_type_active")
  @@index([isBetaEnabled, isActive], map: "idx_region_beta_active")
  @@map("region_hierarchies")
}

/// 업종 분류 마스터 (단일 계층 테이블 + self relation)
model IndustryTaxonomy {
  id            BigInt   @id @default(autoincrement()) @map("id")
  code          String   @unique @map("code")
  nameKo        String   @map("name_ko")
  parentId      BigInt?  @map("parent_id")
  depth         Int      @default(0) @map("depth")
  sortOrder     Int      @default(0) @map("sort_order")
  isLeaf        Boolean  @default(false) @map("is_leaf")
  isActive      Boolean  @default(true) @map("is_active")
  isBetaEnabled Boolean  @default(false) @map("is_beta_enabled")
  externalCode  String?  @map("external_code")
  searchAliases String[] @map("search_aliases")

  // Self relation
  parent   IndustryTaxonomy?  @relation("IndustryParentChild", fields: [parentId], references: [id])
  children IndustryTaxonomy[] @relation("IndustryParentChild")

  // Relations
  stores Store[]

  @@index([parentId], map: "idx_industry_parent")
  @@index([isLeaf, isActive], map: "idx_industry_leaf_active")
  @@index([isBetaEnabled, isActive], map: "idx_industry_beta_active")
  @@map("industry_taxonomies")
}