metallkart-erp/prisma/schema.prisma

generator client {
  provider = "prisma-client-js"
}

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

// ══════════════════════════════════════════════════════════════════
// ENUMS
// ══════════════════════════════════════════════════════════════════

// CDC §9.1 — 15 rôles métier
enum Role {
  ADMIN // Louis-André — tous accès
  DIRECTION_FIN // Максим — validation financière
  DIRECTION_OPS // Никита — validation opérationnelle
  COMMERCIAL // Васильева, Мартьянов
  INGENIEUR_CHEF // Ежов Т.О. — сметы, КД
  INGENIEUR_PTO // Данг Ле Хай — documentation technique
  ADM_PRODUCTION // Лебедева — plan production
  ACHETEUR // Иванов — achats
  RESP_ENTREPOT // Наталья — réception, stocks
  COMPTABLE // Банкина Т.А., Банкина Анна
  MAITRE_PROD // Алидин — fabrication
  MAITRE_ZAGOT // Блинов — fabrication
  TECHNOLOGUE // Илья — laser
  MAGASINIER // Ежов Олег — склад заготовок
  USER // lecture seule
}

// CDC §5.1 — Cycle de vie commande (10 statuts + CANCELLED)
enum OrderStatus {
  DRAFT // Brouillon
  AWAITING_ESTIMATE // En attente смета
  AWAITING_VALIDATION // En attente validation financière
  VALIDATED // Validé (finances OK)
  LAUNCHED // Lancé en production
  IN_PRODUCTION // En production
  QUALITY_CONTROL // En contrôle qualité
  SHIPPED // Expédié
  DELIVERED // Livré
  ARCHIVED // Archivé
  CANCELLED // Annulé
}

// CDC §5.2 — Type de commande
enum OrderType {
  STANDARD
  CUSTOM
}

// STD-1A — Statut produit standard
enum ProductStatus {
  DRAFT
  ACTIVE
  ARCHIVED
}

// CDC §5.2 — Unité d'exécution (исполнитель)
enum ExecutionUnit {
  MAIN_PRODUCTION // Основное производство
  PREPARATION // Заготовительный участок
  SEVER // Участок Север
  TLT // ТЛТ
  EXTERNAL // Внешний подрядчик
}

// CDC §5.3 — Motif révision
enum RevisionReason {
  PROTOTYPE_REJECTED
  CLIENT_REQUEST
  TECHNICAL_ERROR
  OTHER
}

// CDC §5.3 — Statut révision commande
enum RevisionStatus {
  DRAFT
  PENDING_FINANCIAL
  PENDING_PRODUCTION
  APPROVED
  REJECTED
}

// CDC §4.1 — Catégorie demande de paiement
enum PaymentCategory {
  DIRECT_PROJECT
  PRODUCTION_SUPPLY
  ADMINISTRATIVE
  EXCEPTIONAL
}

// CDC §4.1 — Type de récurrence
enum RecurrenceType {
  MONTHLY
  ANNUAL
}

// CDC §4.1 — Statut approbation
enum ApprovalStatus {
  PENDING
  APPROVED
  REJECTED
  INFO_REQUESTED
  ESCALATED
}

// CDC §4.1 — Niveau d'alerte budget
enum AlertLevel {
  NONE
  YELLOW
  RED
}

// CDC §4.3 — Type de document
enum DocumentType {
  CONTRACT
  UPD
  INVOICE
  SMETA
  SPECIFICATION
  PASSPORT_ZAKAZA
  DELIVERY_NOTE
  OTHER
  APPENDIX
}

// CDC §4.3 — Statut suivi document (contrat/УПД)
enum DocumentTrackingStatus {
  SENT
  REMINDER_1
  REMINDER_2
  REMINDER_3
  ESCALATED
  RECEIVED
  CLOSED
}

// CDC §4.3 — Canal d'envoi document
enum DocumentChannel {
  EDO
  EMAIL
  PAPER
}

// CDC §2 — Statut fournisseur
enum SupplierStatus {
  ACTIVE
  INACTIVE
  DISPUTE
}

enum MessagingChannel {
  MAX
  TELEGRAM
}

enum PairingStatus {
  PENDING
  USED
  EXPIRED
  REVOKED
}

enum SupplierContractStatus {
  DRAFT
  SIGNED
  EXPIRED
}

enum SupplierPaymentTrigger {
  PREPAYMENT
  ON_DELIVERY
  POST_DELIVERY
  CUSTOM_DATE
}

// CDC §4.4 — Type de contact fournisseur
enum SupplierContactType {
  COMMERCIAL
  ACCOUNTANT
}

// CDC §6.1 — Catégorie matériau
enum MaterialCategory {
  LASER_FLAT
  LASER_TUBE
  TUBE_BENDING
  ROD_BENDING
  CNC_MILLING
  GALVANIC
  MACHINING_EXT
  MESH_WELDING
  SPRING_COILING
  METAL
  FASTENERS
  COMPONENTS
  PAINT
}

enum ReceptionStatus {
  DRAFT
  VERIFIED
  ACCOUNTED
  DISCREPANCY
  CANCELLED
}

// SPEC 13A-1 — Type de ligne смета
enum SmetaLineType {
  SERVICE
  MATERIAL
  LABOR
}

// CDC §6.1 — Statut besoin d'achat
enum PurchaseRequirementStatus {
  DRAFT
  CONFIRMED
  IN_TENDER
  ORDERED
  RECEIVED
  CANCELLED
}

// CDC §6.1 — Priorité besoin d'achat
enum PurchasePriority {
  LOW
  NORMAL
  HIGH
  URGENT
}

// CDC §6.1 — Statut tender
enum TenderStatus {
  DRAFT
  SENT
  COMPARING
  AWARDED
  CLOSED
  CANCELLED
}

// CDC §6.1 — Statut commande fournisseur
enum PurchaseOrderStatus {
  DRAFT
  CONFIRMED
  SENT
  SHIPPED
  RECEIVED
  PARTIAL
  CANCELLED
}

// CDC §7.2 — Statut entrée trésorerie
enum CashflowStatus {
  PLANNED
  CONFIRMED
  PAID
  CANCELLED
}

// CDC §4.2 — Statut validation смета
// CDC §7.2 — Type trésorerie
enum CashflowType {
  INCOME
  EXPENSE
}

// CDC §7.2 — Source entrée trésorerie
enum CashflowSource {
  ERP
  C1_IMPORT
  MANUAL
}

// CDC §4.2 — Statut validation смета (workflow 2 validateurs)
enum EstimateStatus {
  DRAFT
  SUBMITTED
  FINANCIAL_REVIEW
  TECHNICAL_REVIEW
  REVISION_REQUESTED
  APPROVED
  LOCKED
  SUPERSEDED
}

// ACHATS-A — Statut lot d'achat
enum PurchaseLotStatus {
  PLANNED
  AWAITING_VALIDATION
  VALIDATED
  ORDERING
  ORDERED
  DELIVERED
  CANCELLED
}

// CDC §5.2 révisé — Type de photo commande
enum PhotoType {
  EXPEDITION
  PRODUCT_FINISHED
  PROTOTYPE
  QUALITY_CHECK
  OTHER
}

// CDC §5 — Priorité notification
enum NotificationPriority {
  LOW
  NORMAL
  HIGH
  URGENT
}

// Phase 1.5 — Direction document (client ou fournisseur)
enum DocumentDirection {
  SUPPLIER
  CLIENT
}

// CDC §7.2 révisé — Source relevé bancaire
enum BankStatementSource {
  IMPORT_1C
  MANUAL
}

// CDC §7.2 révisé — Statut vérification relevé
enum VerificationStatus {
  PENDING
  VERIFIED
  ERROR
}

// CDC §6.1 révisé — Mode paiement ТЛТ
enum TltPaymentMode {
  IMMEDIATE
  DEFERRED
}

// SPEC 24F — Types de surcoûts revision smeta
enum AdditionalCostType {
  WASTED_MATERIAL
  CANCELLATION_FEE
  URGENT_REORDER
  PRICE_INCREASE
  OTHER
}

// SPEC 24F — Statut validation surcoût
enum AdditionalCostStatus {
  PENDING
  AC_APPROVED
  AC_REJECTED
}

// SPEC 24F — Statut approbation revision smeta
enum RevisionApprovalStatus {
  REV_PENDING
  PARTIALLY_APPROVED
  REV_APPROVED
  REV_REJECTED
}

// SPEC 24F — Type de diff entre lignes smeta
enum SmetaDiffType {
  ADDED
  REMOVED
  QTY_CHANGED
  PRICE_CHANGED
  CATEGORY_CHANGED
  UNIT_CHANGED
}

enum PaymentType {
  PREPAYMENT_FULL
  INSTALLMENT
  POST_DELIVERY
}

enum InvoiceStatus {
  PENDING_VALIDATION
  APPROVED_AWAITING_PAYMENT
  PARTIALLY_PAID
  PAID
}

enum PaymentTrigger {
  ORDER_DATE
  INVOICE_DATE
  SHIPMENT_DATE
  PRODUCTION_READY
  CUSTOM_DATE
}

enum ForecastStatus {
  EXTRAPOLATED
  CONFIRMED
  MODIFIED
  REALIZED
}

enum ForecastSourceType {
  AUTO_GENERATED
  MANUAL_ADD
  RESIDUAL
  BACKFILLED
}

enum ForecastTriggerPhase {
  ORDER_CREATED
  SMETA_LOCKED
  PRODUCTION_LAUNCHED
  SHIPMENT_SIGNED
  MANUAL
}

enum ClientInstallmentStatus {
  PENDING
  PARTIALLY_PAID
  PAID
  CANCELLED
}

enum ClientInvoiceStatus {
  DRAFT
  ISSUED
  CANCELLED
}

enum DeliveryLotStatus {
  DRAFT
  SHIPPED
  SIGNED_BY_CLIENT
  DELIVERED
  CANCELLED
}

enum ContractStatus {
  DRAFT
  ACTIVE
  EXPIRED
  CANCELLED
}

enum PlannedDeliveryLotStatus {
  PLANNED
  PARTIALLY_SHIPPED
  FULLY_SHIPPED
  CANCELLED
}

// ══════════════════════════════════════════════════════════════════
// MODELS
// ══════════════════════════════════════════════════════════════════

// CDC §9.1 — Utilisateurs avec rôles RBAC
model User {
  id                     String   @id @default(uuid())
  email                  String   @unique
  password               String
  name                   String
  nameRu                 String?  @map("name_ru")
  role                   Role     @default(USER)
  additionalRoles        Role[]   @default([]) @map("additional_roles")
  active                 Boolean  @default(true)
  phone                  String?
  telegramId             String?  @map("telegram_id")
  weeklyReportSubscribed Boolean  @default(true) @map("weekly_report_subscribed")
  createdAt              DateTime @default(now()) @map("created_at")
  updatedAt              DateTime @updatedAt @map("updated_at")

  // Relations
  ordersManaged                       Order[]                         @relation("OrderManager")
  orderRevisions                      OrderRevision[]                 @relation("RevisionInitiator")
  paymentRequests                     PaymentRequest[]                @relation("PaymentRequester")
  opsApprovals                        PaymentRequest[]                @relation("OpsApprover")
  finApprovals                        PaymentRequest[]                @relation("FinApprover")
  documentsResponsible                Document[]
  orderPhotos                         OrderPhoto[]
  auditLogs                           AuditLog[]
  smetasSubmitted                     Smeta[]                         @relation("SmetaSubmitter")
  smetasValidated                     Smeta[]                         @relation("SmetaValidator")
  estimateComments                    EstimateComment[]               @relation("EstimateCommentAuthor")
  notifications                       Notification[]
  statusChanges                       OrderStatusHistory[]            @relation("StatusChangeUser")
  recurringPayments                   RecurringPayment[]              @relation("RecurringPaymentCreator")
  confirmedRequirements               PurchaseRequirement[]           @relation("RequirementConfirmer")
  tendersCreated                      Tender[]                        @relation("TenderCreator")
  purchaseOrdersCreated               PurchaseOrder[]                 @relation("POCreator")
  archivedRequirements                PurchaseRequirement[]           @relation("RequirementArchiver")
  revisionAckRequirements             PurchaseRequirement[]           @relation("RequirementRevisionAck")
  uploadedFiles                       DocumentFile[]                  @relation("UploadedFiles")
  lineAwards                          TenderLineAward[]               @relation("LineAwarder")
  smetaRevisionsApproved              SmetaRevision[]                 @relation("SmetaRevisionApprover")
  smetaRevisionsCreated               SmetaRevision[]                 @relation("SmetaRevisionCreator")
  additionalCostsApproved             AdditionalCost[]                @relation("AdditionalCostApprover")
  additionalCostsCreated              AdditionalCost[]                @relation("AdditionalCostCreator")
  budgetFinValidations                BudgetValidation[]              @relation("BudgetFinValidator")
  budgetTechValidations               BudgetValidation[]              @relation("BudgetTechValidator")
  poInvoicesUploaded                  POInvoice[]                     @relation("POInvoiceUploadedBy")
  prBudgetOverrides                   PurchaseRequirement[]           @relation("PRBudgetOverride")
  notificationPreferences             UserNotificationPreference[]
  fileTrackingConfigs                 FileTrackingConfig[]
  forecastRebalanceLogs               ForecastRebalanceLog[]
  receptionsCreated                   PurchaseLineReception[]         @relation("ReceptionCreator")
  receptionsVerified                  PurchaseLineReception[]         @relation("ReceptionVerifier")
  receptionsAccounted                 PurchaseLineReception[]         @relation("ReceptionAccountant")
  orderCategoryNotes                  OrderCategoryNote[]             @relation("OrderCategoryNoteCreator")
  ordersAsConstructor                 Order[]                         @relation("OrderConstructor")
  helpArticlesCreated                 HelpArticle[]                   @relation("HelpArticleCreatedBy")
  productsCreated                     Product[]                       @relation("ProductCreator")
  pricingsCreated                     ProductMaterialPricing[]        @relation("PricingCreator")
  pricingChangesRequested             ProductMaterialPricing[]        @relation("PricingChangeRequester")
  pricingsApproved                    ProductMaterialPricing[]        @relation("PricingApprover")
  pricingHistoryActions               ProductMaterialPricingHistory[] @relation("PricingHistoryActor")
  mcpErpContextAudits                 McpErpContextAudit[]
  aiAdvisorConversations              AIAdvisorConversation[]
  aiAdvisorArticleSuggestionsReviewed AIAdvisorArticleSuggestion[]    @relation("SuggestionReviewer")
  aiAdvisorQuotas                     AIAdvisorQuota[]
  builderFeaturesRequested            AIConstructorFeature[]          @relation("FeatureRequestedBy")
  builderFeaturesReviewed             AIConstructorFeature[]          @relation("FeatureReviewedBy")
  builderFeatureHistoryActions        AIConstructorFeatureHistory[]
  builderReverts                      AIConstructorRevert[]
  builderRevertItemDecisions          AIConstructorRevertItem[]
  builderQuotas                       AIConstructorBuilderQuota[]
  bugsReported                        BugReport[]                     @relation("BugReporter")
  bugsAssigned                        BugReport[]                     @relation("BugAssignee")
  announcements                       UserAnnouncement[]

  // Agent Август (M0A)
  agentActionsReceived AgentAction[]      @relation("AgentActionsForUser")
  agentEngagements     AgentEngagement[]  @relation("AgentEngagements")
  knowledgeArticles    KnowledgeArticle[] @relation("KnowledgeArticlesAuthored")

  // Copilote Август (M3)
  conversationSessions ConversationSession[] @relation("ConversationSessions")

  // Engagement Layer (Bloc 1A)
  tasksCreated           Task[]                 @relation("TaskCreatedBy")
  tasksAssigned          Task[]                 @relation("TaskAssignee")
  decisionsToDecide      Decision[]             @relation("DecisionDecider")
  decisionsEscalatedTo   Decision[]             @relation("DecisionEscalateTo")
  decisionsCreated       Decision[]             @relation("DecisionCreatedBy")
  decisionsDecided       Decision[]             @relation("DecisionDecidedBy")
  decisionLogActions     DecisionLog[]          @relation("DecisionLogActor")
  remindersTargeted      Reminder[]             @relation("ReminderTarget")
  userMemories           UserMemory[]           @relation("UserMemories")
  agendaCalendarConfig   AgendaCalendarConfig?  @relation("AgendaCalendarConfig")
  chatPreference         ChatPreference?        @relation("ChatPreferences")
  augustSilence          AugustSilenceState?    @relation("AugustSilence")
  lessonsActed           AgentLesson[]          @relation("LessonActor")
  lessonsPromoted        AgentLesson[]          @relation("LessonPromoter")
  notificationDeliveries NotificationDelivery[] @relation("NotificationDeliveries")
  pushSubscriptions      PushSubscription[]     @relation("UserPushSubscriptions")
  laborConfigsUpdated    LaborConfig[]          @relation("LaborConfigUpdater")
  workLogsVerified       WorkLog[]              @relation("WorkLogVerifier")
  workLogsCreated        WorkLog[]              @relation("WorkLogCreator")

  @@index([role])
  @@index([active])
  @@map("users")
}

// CDC §4.4 — Base fournisseurs unifiée
model Supplier {
  id                Int            @id @default(autoincrement())
  companyName       String         @map("company_name")
  inn               String         @unique
  kpp               String?
  ogrn              String?
  legalAddress      String?        @map("legal_address")
  contactName       String?        @map("contact_name")
  contactPhone      String?        @map("contact_phone")
  contactEmail      String?        @map("contact_email")
  accountantName    String?        @map("accountant_name")
  accountantPhone   String?        @map("accountant_phone")
  accountantEmail   String?        @map("accountant_email")
  productTags       String[]       @map("product_tags")
  paymentDelayDays  Int?           @map("payment_delay_days")
  deliveryDelayDays Int?           @map("delivery_delay_days")
  discountPercent   Decimal?       @map("discount_percent") @db.Decimal(5, 2)
  notes             String?
  status            SupplierStatus @default(ACTIVE)
  isInternal        Boolean        @default(false) @map("is_internal")
  isRegular         Boolean        @default(false) @map("is_regular")
  usesEdo           Boolean           @default(false) @map("uses_edo")
  edoProvider       String?           @map("edo_provider")
  preferredChannel  MessagingChannel? @map("preferred_channel")
  deletedAt         DateTime?         @map("deleted_at")
  createdAt         DateTime          @default(now()) @map("created_at")
  updatedAt         DateTime          @updatedAt @map("updated_at")

  // Relations
  contacts           SupplierContact[]
  tagLinks           SupplierTagLink[]
  channelLinks       SupplierChannelLink[] @relation("SupplierChannelLinks")
  pairingCodes       ChannelPairingCode[]  @relation("SupplierPairingCodes")
  paymentRequests    PaymentRequest[]
  documents          Document[]               @relation("SupplierDocuments")
  tenderOffers       TenderOffer[]
  purchaseOrders     PurchaseOrder[]
  cashflowEntries    CashflowEntry[]          @relation("SupplierCashflow")
  recurringPayments  RecurringPayment[]
  hintedRequirements PurchaseRequirement[]    @relation("SupplierHint")
  preferredForPRs    PurchaseRequirement[]    @relation("PRPreferredSupplier")
  tenderDispatches   TenderDispatch[]         @relation("TenderDispatches")
  tenderLineAwards   TenderLineAward[]        @relation("TenderLineAwards")
  deliveryNotes      SupplierDeliveryNote[]   @relation("SupplierDNs")
  contracts          SupplierContract[]       @relation("SupplierContracts")
  productPricings    ProductMaterialPricing[] @relation("SupplierPricings")

  @@index([status])
  @@index([inn])
  @@index([deletedAt])
  @@map("suppliers")
}

model SupplierChannelLink {
  id             Int              @id @default(autoincrement())
  supplierId     Int              @map("supplier_id")
  channel        MessagingChannel
  externalChatId String           @map("external_chat_id")
  displayName    String?          @map("display_name")
  linkedAt       DateTime         @default(now()) @map("linked_at")
  active         Boolean          @default(true)

  supplier Supplier @relation("SupplierChannelLinks", fields: [supplierId], references: [id])

  @@unique([channel, externalChatId])
  @@index([supplierId])
  @@map("supplier_channel_links")
}

model SupplierNotificationLog {
  id         Int      @id @default(autoincrement())
  supplierId Int      @map("supplier_id")
  event      String
  refType    String   @map("ref_type")
  refId      Int      @map("ref_id")
  channel    String
  createdAt  DateTime @default(now()) @map("created_at")

  @@unique([supplierId, event, refType, refId])
  @@index([supplierId])
  @@map("supplier_notification_logs")
}

model ChannelPairingCode {
  id           Int              @id @default(autoincrement())
  code         String           @unique
  supplierId   Int              @map("supplier_id")
  channel      MessagingChannel
  expiresAt    DateTime         @map("expires_at")
  usedAt       DateTime?        @map("used_at")
  usedByChatId String?          @map("used_by_chat_id")
  status       PairingStatus    @default(PENDING)
  createdAt    DateTime         @default(now()) @map("created_at")

  supplier Supplier @relation("SupplierPairingCodes", fields: [supplierId], references: [id])

  @@index([supplierId])
  @@index([status])
  @@map("channel_pairing_codes")
}

enum MaxMsgStatus {
  PENDING
  SENT
  FAILED
}

model MaxOutboundMessage {
  id        Int          @id @default(autoincrement())
  chatId    String       @map("chat_id")
  text      String
  status    MaxMsgStatus @default(PENDING)
  error     String?
  createdAt DateTime     @default(now()) @map("created_at")
  sentAt    DateTime?    @map("sent_at")

  @@index([status])
  @@map("max_outbound_messages")
}

model MaxInboundMessage {
  id         Int      @id @default(autoincrement())
  channel    String
  type       String
  chatId     String   @map("chat_id")
  text       String
  receivedAt DateTime @default(now()) @map("received_at")
  processed  Boolean  @default(false)

  @@index([processed])
  @@map("max_inbound_messages")
}

model SupplierContract {
  id             Int                           @id @default(autoincrement())
  supplierId     Int                           @map("supplier_id")
  supplier       Supplier                      @relation("SupplierContracts", fields: [supplierId], references: [id])
  contractNumber String                        @map("contract_number")
  contractDate   DateTime                      @map("contract_date") @db.Date
  startDate      DateTime                      @map("start_date") @db.Date
  endDate        DateTime?                     @map("end_date") @db.Date
  status         SupplierContractStatus        @default(DRAFT)
  notes          String?
  documents      Document[]                    @relation("SupplierContractDocuments")
  terms          SupplierContractPaymentTerm[]
  purchaseOrders PurchaseOrder[]
  signedAt       DateTime?                     @map("signed_at")
  createdAt      DateTime                      @default(now()) @map("created_at")
  updatedAt      DateTime                      @updatedAt @map("updated_at")

  @@unique([supplierId, contractNumber])
  @@index([supplierId])
  @@index([status])
  @@map("supplier_contracts")
}

model SupplierContractPaymentTerm {
  id         Int                    @id @default(autoincrement())
  contractId Int                    @map("contract_id")
  contract   SupplierContract       @relation(fields: [contractId], references: [id], onDelete: Cascade)
  percent    Decimal                @db.Decimal(5, 2)
  trigger    SupplierPaymentTrigger
  offsetDays Int                    @default(0) @map("offset_days")
  label      String
  sortOrder  Int                    @default(0) @map("sort_order")

  @@index([contractId])
  @@map("supplier_contract_payment_terms")
}

// CDC §4.4 — Contacts fournisseurs (opérationnels et comptables)
model SupplierContact {
  id         Int                 @id @default(autoincrement())
  supplierId Int                 @map("supplier_id")
  supplier   Supplier            @relation(fields: [supplierId], references: [id], onDelete: Cascade)
  type       SupplierContactType
  name       String
  phone      String?
  email      String?
  position   String?
  createdAt  DateTime            @default(now()) @map("created_at")
  updatedAt  DateTime            @updatedAt @map("updated_at")

  @@index([supplierId])
  @@map("supplier_contacts")
}

// CDC §4.4 — Tags fournisseurs (extensibles)
model SupplierTag {
  id         Int      @id @default(autoincrement())
  name       String   @unique
  label      String?
  isIndirect Boolean  @default(false) @map("is_indirect")
  createdAt  DateTime @default(now()) @map("created_at")

  // Relations
  supplierLinks SupplierTagLink[]

  @@map("supplier_tags")
}

// CDC §4.4 — Liaison fournisseur-tag (N-N)
model SupplierTagLink {
  supplierId Int         @map("supplier_id")
  tagId      Int         @map("tag_id")
  supplier   Supplier    @relation(fields: [supplierId], references: [id], onDelete: Cascade)
  tag        SupplierTag @relation(fields: [tagId], references: [id], onDelete: Cascade)

  @@id([supplierId, tagId])
  @@map("supplier_tag_links")
}

// CDC — Client
model Client {
  id              Int       @id @default(autoincrement())
  companyName     String    @map("company_name")
  inn             String?   @unique
  kpp             String?
  abbreviation    String?   @unique
  contactName     String?   @map("contact_name")
  phone           String?
  email           String?
  address         String?
  isActive        Boolean   @default(true) @map("is_active")
  notes           String?
  accountantName  String?   @map("accountant_name")
  accountantPhone String?   @map("accountant_phone")
  accountantEmail String?   @map("accountant_email")
  usesEdo         Boolean   @default(false) @map("uses_edo")
  edoProvider     String?   @map("edo_provider")
  onecGuid        String?   @unique @map("onec_guid")
  onecSyncedAt    DateTime? @map("onec_synced_at")
  createdAt       DateTime  @default(now()) @map("created_at")
  updatedAt       DateTime  @updatedAt @map("updated_at")

  // Relations
  orders          Order[]
  documents       Document[]       @relation("ClientDocuments")
  cashflowEntries CashflowEntry[]  @relation("ClientCashflow")
  contracts       ClientContract[]

  @@index([isActive])
  @@map("clients")
}

// STD-1A — Catalogue produits standards
model Product {
  id              Int           @id @default(autoincrement())
  name            String        @db.VarChar(300)
  code            String        @unique @db.VarChar(50)
  description     String?       @db.Text
  status          ProductStatus @default(DRAFT)
  executionUnit   ExecutionUnit @default(MAIN_PRODUCTION) @map("execution_unit")
  defaultQuantity Int           @default(1) @map("default_quantity")
  dimensions      String?
  colorRal        String?       @map("color_ral")
  massKg          Decimal?      @map("mass_kg") @db.Decimal(10, 4)
  imagePath       String?       @map("image_path")
  imageMime       String?       @map("image_mime")
  imageHash       String?       @map("image_hash")
  createdById     String        @map("created_by_id")
  createdBy       User          @relation("ProductCreator", fields: [createdById], references: [id])
  createdAt       DateTime      @default(now()) @map("created_at")
  updatedAt       DateTime      @updatedAt @map("updated_at")

  smeta    Smeta?
  orders   Order[]
  pricings ProductMaterialPricing[]

  @@index([status])
  @@index([executionUnit])
  @@index([createdAt])
  @@map("products")
}

// CDC §5.1-5.2 — Fiche de commande
model Order {
  id                   Int             @id @default(autoincrement())
  orderCode            String          @unique @map("order_code")
  clientId             Int             @map("client_id")
  client               Client          @relation(fields: [clientId], references: [id])
  managerId            String?         @map("manager_id")
  manager              User?           @relation("OrderManager", fields: [managerId], references: [id])
  status               OrderStatus     @default(DRAFT)
  orderType            OrderType       @default(CUSTOM) @map("order_type")
  executionUnit        ExecutionUnit   @default(MAIN_PRODUCTION) @map("execution_unit")
  productName          String          @map("product_name")
  quantity             Int             @default(1)
  dimensions           String?
  colorRal             String?         @map("color_ral")
  massKg               Decimal?        @map("mass_kg") @db.Decimal(10, 4)
  contractNumber       String?         @map("contract_number")
  paymentTerms         Json?           @map("payment_terms")
  kdFolderPath         String?         @map("kd_folder_path")
  smetaFolderPath      String?         @map("smeta_folder_path")
  specFolderPath       String?         @map("spec_folder_path")
  launchDate           DateTime?       @map("launch_date")
  deliveryDate         DateTime?       @map("delivery_date")
  cancelReason         String?         @map("cancel_reason")
  cancelledAt          DateTime?       @map("cancelled_at")
  cancelledById        String?         @map("cancelled_by_id")
  thumbnailPath        String?         @map("thumbnail_path")
  notes                String?
  contractId           Int?            @map("contract_id")
  contract             ClientContract? @relation("OrderClientContract", fields: [contractId], references: [id])
  productId            Int?            @map("product_id")
  product              Product?        @relation(fields: [productId], references: [id])
  constructorId        String?         @map("constructor_id")
  constructor          User?           @relation("OrderConstructor", fields: [constructorId], references: [id])
  planningComment      String?         @map("planning_comment") @db.VarChar(300)
  productionStatusText String?         @map("production_status_text") @db.VarChar(200)
  executorText         String?         @map("executor_text") @db.VarChar(100)
  createdAt            DateTime        @default(now()) @map("created_at")
  updatedAt            DateTime        @updatedAt @map("updated_at")

  // Relations
  smetas               Smeta[]
  revisions            OrderRevision[]
  financialTracking    FinancialTracking?
  purchaseRequirements PurchaseRequirement[]
  purchaseOrders       PurchaseOrder[]
  paymentRequests      PaymentRequest[]
  photos               OrderPhoto[]
  documents            Document[]            @relation("OrderDocuments")
  cashflowEntries      CashflowEntry[]       @relation("OrderCashflow")
  statusHistory        OrderStatusHistory[]
  smetaRevisions       SmetaRevision[]
  additionalCosts      AdditionalCost[]
  budgetValidation     BudgetValidation?
  clientInvoices       ClientInvoice[]
  plannedDeliveryLots  PlannedDeliveryLot[]
  deliveryLots         DeliveryLot[]
  clientInstallments   ClientInstallment[]
  forecastInstallments ForecastInstallment[]
  categoryNotes        OrderCategoryNote[]
  laborOperations      OrderLaborOperation[]
  workLogs             WorkLog[]

  productImagePath   String? @map("product_image_path")
  productImageMime   String? @map("product_image_mime")
  productImageHash   String? @map("product_image_hash")
  productImageSource String? @map("product_image_source")

  @@index([status])
  @@index([clientId])
  @@index([managerId])
  @@index([constructorId])
  @@index([executionUnit])
  @@index([productId])
  @@index([createdAt])
  @@map("orders")
}

// CDC §5.1 — Historique transitions de statut commande
model OrderStatusHistory {
  id          Int         @id @default(autoincrement())
  orderId     Int         @map("order_id")
  order       Order       @relation(fields: [orderId], references: [id], onDelete: Cascade)
  fromStatus  OrderStatus @map("from_status")
  toStatus    OrderStatus @map("to_status")
  changedById String      @map("changed_by_id")
  changedBy   User        @relation("StatusChangeUser", fields: [changedById], references: [id])
  comment     String?
  createdAt   DateTime    @default(now()) @map("created_at")

  @@index([orderId])
  @@index([createdAt])
  @@map("order_status_history")
}

// CDC §5.3 — Gestion des révisions
model OrderRevision {
  id                      Int            @id @default(autoincrement())
  orderId                 Int            @map("order_id")
  order                   Order          @relation(fields: [orderId], references: [id], onDelete: Cascade)
  version                 Int
  reason                  RevisionReason
  description             String?
  status                  RevisionStatus @default(DRAFT)
  // Deltas financiers
  deltaServices           Decimal        @default(0) @map("delta_services") @db.Decimal(12, 2)
  deltaMaterials          Decimal        @default(0) @map("delta_materials") @db.Decimal(12, 2)
  deltaLabor              Decimal        @default(0) @map("delta_labor") @db.Decimal(12, 2)
  deltaSellingPrice       Decimal        @default(0) @map("delta_selling_price") @db.Decimal(12, 2)
  additionalPurchasesDesc String?        @map("additional_purchases_desc")
  delayImpactDays         Int?           @map("delay_impact_days")
  drawingChanges          String?        @map("drawing_changes")
  generatesNewPurchases   Boolean        @default(false) @map("generates_new_purchases")
  // Initiateur
  initiatorId             String         @map("initiator_id")
  initiator               User           @relation("RevisionInitiator", fields: [initiatorId], references: [id])
  // Approbation financière (DIRECTION_FIN)
  finApproverId           String?        @map("fin_approver_id")
  finApprovalComment      String?        @map("fin_approval_comment")
  finApprovedAt           DateTime?      @map("fin_approved_at")
  // Approbation production (DIRECTION_OPS)
  opsApproverId           String?        @map("ops_approver_id")
  opsApprovalComment      String?        @map("ops_approval_comment")
  opsApprovedAt           DateTime?      @map("ops_approved_at")
  // Rejet
  rejectedById            String?        @map("rejected_by_id")
  rejectionComment        String?        @map("rejection_comment")
  rejectedAt              DateTime?      @map("rejected_at")
  // Timestamps
  submittedAt             DateTime?      @map("submitted_at")
  approvedAt              DateTime?      @map("approved_at")
  createdAt               DateTime       @default(now()) @map("created_at")
  updatedAt               DateTime       @updatedAt @map("updated_at")

  @@unique([orderId, version])
  @@index([orderId])
  @@index([status])
  @@index([initiatorId])
  @@map("order_revisions")
}

// CDC §4.2, §7.1 — Budget commande (смета) avec workflow validation
model Smeta {
  id                Int            @id @default(autoincrement())
  orderId           Int?           @map("order_id")
  order             Order?         @relation(fields: [orderId], references: [id], onDelete: Cascade)
  productId         Int?           @unique @map("product_id")
  product           Product?       @relation(fields: [productId], references: [id])
  version           Int            @default(1)
  status            EstimateStatus @default(DRAFT)
  filePath          String?        @map("file_path")
  totalServices     Decimal        @default(0) @map("total_services") @db.Decimal(12, 2)
  totalMaterials    Decimal        @default(0) @map("total_materials") @db.Decimal(12, 2)
  totalLabor        Decimal        @default(0) @map("total_labor") @db.Decimal(12, 2)
  supplyOverhead    Decimal        @default(0) @map("supply_overhead") @db.Decimal(12, 2)
  margin            Decimal        @default(0) @db.Decimal(12, 2)
  tradeSurcharge    Decimal        @default(0) @map("trade_surcharge") @db.Decimal(12, 2)
  sellingPrice      Decimal        @default(0) @map("selling_price") @db.Decimal(12, 2)
  isLocked          Boolean        @default(false) @map("is_locked")
  submittedById     String?        @map("submitted_by_id")
  submittedBy       User?          @relation("SmetaSubmitter", fields: [submittedById], references: [id])
  submittedAt       DateTime?      @map("submitted_at")
  validatedById     String?        @map("validated_by_id")
  validatedBy       User?          @relation("SmetaValidator", fields: [validatedById], references: [id])
  validatedAt       DateTime?      @map("validated_at")
  lockedAt          DateTime?      @map("locked_at")
  previousVersionId Int?           @map("previous_version_id")
  previousVersion   Smeta?         @relation("SmetaVersions", fields: [previousVersionId], references: [id])
  nextVersions      Smeta[]        @relation("SmetaVersions")
  deltaJson         Json?          @map("delta_json")
  importSource      String?        @map("import_source") // 'EXCEL' | 'MANUAL' | null
  importedAt        DateTime?      @map("imported_at")
  importedFile      String?        @map("imported_file") // nom du fichier importé
  manualEdits       Json?          @map("manual_edits") // log des éditions manuelles post-import
  specData          Json?          @map("spec_data") // parsed spec lines from СПЕЦИФИКАЦИЯ (for PR generation at LAUNCH)
  createdAt         DateTime       @default(now()) @map("created_at")
  updatedAt         DateTime       @updatedAt @map("updated_at")

  // Relations
  comments       EstimateComment[]
  lines          SmetaLine[]
  laborNodes     SmetaLaborNode[]
  revisionsAsOld SmetaRevision[]   @relation("OldSmeta")
  revisionsAsNew SmetaRevision[]   @relation("NewSmeta")

  @@unique([orderId, version])
  @@index([orderId])
  @@index([status])
  @@map("smetas")
}

// CDC §4.2 — Commentaires de validation смета
model EstimateComment {
  id        Int      @id @default(autoincrement())
  smetaId   Int      @map("smeta_id")
  smeta     Smeta    @relation(fields: [smetaId], references: [id], onDelete: Cascade)
  authorId  String   @map("author_id")
  author    User     @relation("EstimateCommentAuthor", fields: [authorId], references: [id])
  content   String
  createdAt DateTime @default(now()) @map("created_at")

  @@index([smetaId])
  @@map("estimate_comments")
}

// SPEC 13A-1 — Lignes détaillées смета (import Excel)
model SmetaLine {
  id           Int           @id @default(autoincrement())
  smetaId      Int           @map("smeta_id")
  smeta        Smeta         @relation(fields: [smetaId], references: [id], onDelete: Cascade)
  lineType     SmetaLineType @map("line_type")
  lineCategory String?       @map("line_category")
  description  String
  unit         String?
  quantity     Decimal?      @db.Decimal(12, 4)
  normHours    Decimal?      @map("norm_hours") @db.Decimal(12, 4)
  unitPrice    Decimal?      @map("unit_price") @db.Decimal(12, 2)
  totalPrice   Decimal       @default(0) @map("total_price") @db.Decimal(12, 2)
  position     Int           @default(0)
  createdAt    DateTime      @default(now()) @map("created_at")

  pricing          ProductMaterialPricing?
  laborOperations  OrderLaborOperation[]

  @@index([smetaId])
  @@map("smeta_lines")
}

// SPEC-TRUD-1 — Поузловой расчет себестоимости трудозатрат (welding nodes)
model SmetaLaborNode {
  id               Int      @id @default(autoincrement())
  smetaId          Int      @map("smeta_id")
  smeta            Smeta    @relation(fields: [smetaId], references: [id], onDelete: Cascade)
  position         Int      @default(0)
  nodeName         String   @map("node_name")
  nodeCount        Int      @default(1) @map("node_count")
  detailCount      Int?     @map("detail_count")
  assemblyNormMin  Decimal? @map("assembly_norm_min") @db.Decimal(12, 4)
  assemblyTimeH    Decimal? @map("assembly_time_h") @db.Decimal(12, 4)
  assemblyRate     Decimal? @map("assembly_rate") @db.Decimal(12, 2)
  assemblyPrice    Decimal? @map("assembly_price") @db.Decimal(12, 2)
  weldMeters       Decimal? @map("weld_meters") @db.Decimal(12, 4)
  weldNormMin      Decimal? @map("weld_norm_min") @db.Decimal(12, 4)
  weldTimeH        Decimal? @map("weld_time_h") @db.Decimal(12, 4)
  weldRate         Decimal? @map("weld_rate") @db.Decimal(12, 2)
  weldPrice        Decimal? @map("weld_price") @db.Decimal(12, 2)
  nodeTotalTime    Decimal? @map("node_total_time") @db.Decimal(12, 4)
  nodeTotalPrice   Decimal? @map("node_total_price") @db.Decimal(12, 2)
  conductorTimeMin Decimal? @map("conductor_time_min") @db.Decimal(12, 4)
  photoPath        String?  @map("photo_path")
  photoMime        String?  @map("photo_mime")
  anchorRow        Int?     @map("anchor_row")
  createdAt        DateTime @default(now()) @map("created_at")

  laborOperations  OrderLaborOperation[]

  @@index([smetaId])
  @@map("smeta_labor_nodes")
}

// CDC §4.1 — Demandes de paiement
model PaymentRequest {
  id                   Int             @id @default(autoincrement())
  requestNumber        String          @unique @map("request_number")
  requesterId          String          @map("requester_id")
  requester            User            @relation("PaymentRequester", fields: [requesterId], references: [id])
  supplierId           Int?            @map("supplier_id")
  supplier             Supplier?       @relation(fields: [supplierId], references: [id])
  orderId              Int?            @map("order_id")
  order                Order?          @relation(fields: [orderId], references: [id])
  purchaseOrderId      Int?            @map("purchase_order_id")
  purchaseOrder        PurchaseOrder?  @relation("POPaymentRequests", fields: [purchaseOrderId], references: [id])
  amount               Decimal         @db.Decimal(12, 2)
  category             PaymentCategory
  expenseCodeId        Int?            @map("expense_code_id")
  expenseCode          ExpenseCode?    @relation("PRExpenseCode", fields: [expenseCodeId], references: [id])
  description          String
  invoiceFilePath      String?         @map("invoice_file_path")
  status               ApprovalStatus  @default(PENDING)
  opsApproverId        String?         @map("ops_approver_id")
  opsApprover          User?           @relation("OpsApprover", fields: [opsApproverId], references: [id])
  opsApprovedAt        DateTime?       @map("ops_approved_at")
  finApproverId        String?         @map("fin_approver_id")
  finApprover          User?           @relation("FinApprover", fields: [finApproverId], references: [id])
  finApprovedAt        DateTime?       @map("fin_approved_at")
  rejectionComment     String?         @map("rejection_comment")
  budgetCheckResult    String?         @map("budget_check_result")
  budgetOverrunPercent Decimal?        @map("budget_overrun_percent") @db.Decimal(5, 2)
  paidAt               DateTime?       @map("paid_at")
  dueDate              DateTime?       @map("due_date")
  isRecurring          Boolean         @default(false) @map("is_recurring")
  recurrenceType       RecurrenceType? @map("recurrence_type")
  recurrenceEndDate    DateTime?       @map("recurrence_end_date")
  parentRecurringId    Int?            @map("parent_recurring_id")
  createdAt            DateTime        @default(now()) @map("created_at")
  updatedAt            DateTime        @updatedAt @map("updated_at")
  poInvoice            POInvoice?
  installment          POInstallment?

  @@index([status])
  @@index([category])
  @@index([requesterId])
  @@index([orderId])
  @@index([purchaseOrderId])
  @@index([createdAt])
  @@index([isRecurring])
  @@map("payment_requests")
}

// CDC §4.1.1 — Budgets mensuels
model MonthlyBudget {
  id                   Int             @id @default(autoincrement())
  category             PaymentCategory
  expenseCodeId        Int             @map("expense_code_id")
  expenseCode          ExpenseCode     @relation("MBExpenseCode", fields: [expenseCodeId], references: [id])
  month                Int
  year                 Int
  allocatedAmount      Decimal         @map("allocated_amount") @db.Decimal(12, 2)
  consumedAmount       Decimal         @default(0) @map("consumed_amount") @db.Decimal(12, 2)
  alertThreshold       Decimal         @default(70) @map("alert_threshold") @db.Decimal(5, 2)
  budgetMode           String          @default("FIXED") @map("budget_mode")
  productionVolumeBase Decimal?        @map("production_volume_base") @db.Decimal(12, 2)
  createdAt            DateTime        @default(now()) @map("created_at")
  updatedAt            DateTime        @updatedAt @map("updated_at")

  @@unique([category, expenseCodeId, month, year])
  @@map("monthly_budgets")
}

// SPEC-39A — Codes budgétaires en base (remplace enum ExpenseCodeLegacy)
model ExpenseCode {
  id             Int             @id @default(autoincrement())
  code           String          @unique
  labelRu        String          @map("label_ru")
  groupCode      String          @map("group_code")
  groupLabel     String          @map("group_label")
  parentCategory PaymentCategory
  scope          String          @default("INDIRECT_ADMIN")
  isSystem       Boolean         @default(true) @map("is_system")
  isActive       Boolean         @default(true) @map("is_active")
  sortOrder      Int             @default(0) @map("sort_order")
  createdAt      DateTime        @default(now()) @map("created_at")
  updatedAt      DateTime        @updatedAt @map("updated_at")

  paymentRequests      PaymentRequest[]      @relation("PRExpenseCode")
  monthlyBudgets       MonthlyBudget[]       @relation("MBExpenseCode")
  recurringPayments    RecurringPayment[]    @relation("RPExpenseCode")
  purchaseOrders       PurchaseOrder[]
  purchaseRequirements PurchaseRequirement[] @relation("RequirementExpenseCode")
  cashflowEntries      CashflowEntry[]       @relation("CFExpenseCode")
  smetaMappings        SmetaBudgetMapping[]  @relation("MappingExpenseCode")

  @@index([groupCode])
  @@index([parentCategory])
  @@index([scope])
  @@index([isActive])
  @@map("expense_codes")
}

// SPEC-40D — Mapping des champs smeta vers les codes budg\u00e9taires (ventilation %)
model SmetaBudgetMapping {
  id            Int         @id @default(autoincrement())
  smetaField    String      @map("smeta_field")
  expenseCodeId Int         @map("expense_code_id")
  expenseCode   ExpenseCode @relation("MappingExpenseCode", fields: [expenseCodeId], references: [id])
  percent       Decimal     @db.Decimal(5, 2)
  notes         String?
  createdAt     DateTime    @default(now()) @map("created_at")
  updatedAt     DateTime    @updatedAt @map("updated_at")

  @@unique([smetaField, expenseCodeId])
  @@index([smetaField])
  @@map("smeta_budget_mappings")
}

// CDC §4.1 — Modèle de paiement récurrent (dépenses administratives)
model RecurringPayment {
  id                 Int             @id @default(autoincrement())
  templateName       String          @map("template_name")
  supplierId         Int?            @map("supplier_id")
  supplier           Supplier?       @relation(fields: [supplierId], references: [id])
  amount             Decimal         @db.Decimal(12, 2)
  category           PaymentCategory @default(ADMINISTRATIVE)
  expenseCodeId      Int             @map("expense_code_id")
  expenseCode        ExpenseCode     @relation("RPExpenseCode", fields: [expenseCodeId], references: [id])
  recurrenceType     RecurrenceType  @map("recurrence_type")
  dayOfMonth         Int             @default(1) @map("day_of_month")
  nextGenerationDate DateTime        @map("next_generation_date")
  isActive           Boolean         @default(true) @map("is_active")
  createdById        String          @map("created_by_id")
  createdBy          User            @relation("RecurringPaymentCreator", fields: [createdById], references: [id])
  createdAt          DateTime        @default(now()) @map("created_at")
  updatedAt          DateTime        @updatedAt @map("updated_at")

  @@index([isActive])
  @@index([nextGenerationDate])
  @@map("recurring_payments")
}

// CDC §4.3 — Suivi documentaire
model Document {
  id                Int                     @id @default(autoincrement())
  documentType      DocumentType            @map("document_type")
  documentReference String?                 @map("document_reference")
  title             String
  filePath          String?                 @map("file_path")
  orderId           Int?                    @map("order_id")
  order             Order?                  @relation("OrderDocuments", fields: [orderId], references: [id])
  supplierId        Int?                    @map("supplier_id")
  supplier          Supplier?               @relation("SupplierDocuments", fields: [supplierId], references: [id])
  clientId          Int?                    @map("client_id")
  client            Client?                 @relation("ClientDocuments", fields: [clientId], references: [id])
  sentAt            DateTime?               @map("sent_at")
  sentChannel       DocumentChannel?        @map("sent_channel")
  returnExpectedAt  DateTime?               @map("return_expected_at")
  returnActualAt    DateTime?               @map("return_actual_at")
  responsibleId     String?                 @map("responsible_id")
  responsible       User?                   @relation(fields: [responsibleId], references: [id])
  trackingStatus    DocumentTrackingStatus? @map("tracking_status")
  nextReminderAt    DateTime?               @map("next_reminder_at")
  escalatedAt       DateTime?               @map("escalated_at")
  receivedAt        DateTime?               @map("received_at")
  closedAt          DateTime?               @map("closed_at")
  reminderCount     Int                     @default(0) @map("reminder_count")
  lastReminderAt    DateTime?               @map("last_reminder_at")
  comment           String?
  direction         DocumentDirection?
  onecGuid          String?                 @unique @map("onec_guid")
  onecSyncedAt      DateTime?               @map("onec_synced_at")
  deletedAt         DateTime?               @map("deleted_at")
  createdAt         DateTime                @default(now()) @map("created_at")
  updatedAt         DateTime                @updatedAt @map("updated_at")

  // Self-relation for APPENDIX documents
  parentDocumentId Int?       @map("parent_document_id")
  parentDocument   Document?  @relation("DocumentParent", fields: [parentDocumentId], references: [id])
  childDocuments   Document[] @relation("DocumentParent")

  // FK cashflow client
  clientContractId       Int?                  @map("client_contract_id")
  clientContract         ClientContract?       @relation(fields: [clientContractId], references: [id])
  deliveryLotId          Int?                  @map("delivery_lot_id")
  deliveryLot            DeliveryLot?          @relation(fields: [deliveryLotId], references: [id])
  clientInvoiceId        Int?                  @map("client_invoice_id")
  clientInvoice          ClientInvoice?        @relation(fields: [clientInvoiceId], references: [id])
  supplierDeliveryNoteId Int?                  @map("supplier_delivery_note_id")
  supplierDeliveryNote   SupplierDeliveryNote? @relation("SDNDocuments", fields: [supplierDeliveryNoteId], references: [id])
  supplierContractId     Int?                  @map("supplier_contract_id")
  supplierContract       SupplierContract?     @relation("SupplierContractDocuments", fields: [supplierContractId], references: [id])

  // Relations
  notifications      Notification[]
  files              DocumentFile[] @relation("DocumentFiles")
  lastFileReminderAt DateTime?      @map("last_file_reminder_at")
  fileReminderCount  Int            @default(0) @map("file_reminder_count")

  @@index([documentType])
  @@index([orderId])
  @@index([supplierId])
  @@index([returnExpectedAt])
  @@index([trackingStatus])
  @@index([nextReminderAt])
  @@index([direction])
  @@index([parentDocumentId])
  @@index([deletedAt])
  @@index([clientContractId])
  @@index([deliveryLotId])
  @@index([clientInvoiceId])
  @@index([supplierDeliveryNoteId])
  @@index([supplierContractId])
  @@index([lastFileReminderAt])
  @@map("documents")
}

// CDC §13A — Fichiers attachés aux documents
model DocumentFile {
  id         Int      @id @default(autoincrement())
  documentId Int      @map("document_id")
  document   Document @relation("DocumentFiles", fields: [documentId], references: [id])

  originalName String @map("original_name")
  storedPath   String @map("stored_path")
  mimeType     String @map("mime_type")
  fileSize     Int    @map("file_size")

  version  Int     @default(1)
  isLatest Boolean @default(true) @map("is_latest")

  uploadedById String @map("uploaded_by_id")
  uploadedBy   User   @relation("UploadedFiles", fields: [uploadedById], references: [id])

  comment  String?
  checksum String?

  deletedAt DateTime? @map("deleted_at")
  createdAt DateTime  @default(now()) @map("created_at")

  @@index([documentId])
  @@index([documentId, isLatest])
  @@index([uploadedById])
  @@map("document_files")
}

// CDC §5 — Notifications centralisées
model Notification {
  id             Int                  @id @default(autoincrement())
  documentId     Int?                 @map("document_id")
  document       Document?            @relation(fields: [documentId], references: [id], onDelete: Cascade)
  recipientId    String               @map("recipient_id")
  recipient      User                 @relation(fields: [recipientId], references: [id])
  type           String // REMINDER_1, REMINDER_2, REMINDER_3, ESCALATION, RECEIVED, ALERT, TASK, INFO
  message        String
  entityType     String?              @map("entity_type") // ORDER, PAYMENT_REQUEST, SMETA, DOCUMENT, PURCHASE_ORDER, FINANCIAL_ALERT, SYSTEM
  entityId       Int?                 @map("entity_id")
  priority       NotificationPriority @default(NORMAL)
  actionRequired Boolean              @default(false) @map("action_required")
  actionUrl      String?              @map("action_url")
  expiresAt      DateTime?            @map("expires_at")
  seenAt         DateTime?            @map("seen_at")
  acknowledgedAt DateTime?            @map("acknowledged_at")
  category       String?              @map("category")
  createdAt      DateTime             @default(now()) @map("created_at")

  @@index([documentId])
  @@index([recipientId])
  @@index([seenAt])
  @@index([acknowledgedAt])
  @@index([category])
  @@index([entityType, entityId])
  @@index([actionRequired])
  @@map("notifications")
}

model NotificationCategoryConfig {
  id             Int      @id @default(autoincrement())
  category       String   @unique
  isCritical     Boolean  @default(false) @map("is_critical")
  requiresAck    Boolean  @default(false) @map("requires_ack")
  displayBanner  Boolean  @default(false) @map("display_banner")
  bannerLevel    String   @default("warning") @map("banner_level") // info, warning, error
  autoExpireDays Int?     @map("auto_expire_days")
  createdAt      DateTime @default(now()) @map("created_at")
  updatedAt      DateTime @updatedAt @map("updated_at")

  @@map("notification_category_configs")
}

// CDC §4.3 — Configuration délais relance (configurable)
model ReminderConfig {
  id    Int     @id @default(autoincrement())
  key   String  @unique // reminder_1_days, reminder_2_days, reminder_3_days
  value Int // nombre de jours
  label String? // description lisible

  @@map("reminder_configs")
}

// CDC §6.1 étape 1 — Besoins d'achat
model PurchaseRequirement {
  id                  Int                       @id @default(autoincrement())
  orderId             Int?                      @map("order_id")
  order               Order?                    @relation(fields: [orderId], references: [id], onDelete: Cascade)
  materialCategory    MaterialCategory          @map("material_category")
  description         String
  quantity            Decimal                   @db.Decimal(12, 2)
  originalQuantity    Decimal?                  @map("original_quantity") @db.Decimal(12, 2)
  unit                String                    @default("шт")
  estimatedPrice      Decimal?                  @map("estimated_price") @db.Decimal(12, 2)
  status              PurchaseRequirementStatus @default(DRAFT)
  priority            PurchasePriority          @default(NORMAL)
  requiredByDate      DateTime?                 @map("required_by_date")
  sourceType          String?                   @map("source_type")
  sourceId            Int?                      @map("source_id")
  confirmedById       String?                   @map("confirmed_by_id")
  confirmedBy         User?                     @relation("RequirementConfirmer", fields: [confirmedById], references: [id])
  confirmedAt         DateTime?                 @map("confirmed_at")
  quantityPerUnit     Decimal?                  @map("quantity_per_unit") @db.Decimal(12, 4)
  sourceReference     String?                   @map("source_reference")
  budgetAmount        Decimal?                  @map("budget_amount") @db.Decimal(12, 2)
  notes               String?
  extraPurchaseReason String?                   @map("extra_purchase_reason")
  supplierHintId      Int?                      @map("supplier_hint_id")
  supplierHint        Supplier?                 @relation("SupplierHint", fields: [supplierHintId], references: [id])
  tenderId            Int?                      @map("tender_id")
  tender              Tender?                   @relation(fields: [tenderId], references: [id])
  archived            Boolean                   @default(false)
  archivedAt          DateTime?                 @map("archived_at")
  archivedById        String?                   @map("archived_by_id")
  archivedBy          User?                     @relation("RequirementArchiver", fields: [archivedById], references: [id])
  deletedAt           DateTime?                 @map("deleted_at")
  inStock             Boolean                   @default(false) @map("in_stock")
  inStockQuantity     Decimal?                  @map("in_stock_quantity") @db.Decimal(12, 2)
  createdAt           DateTime                  @default(now()) @map("created_at")
  updatedAt           DateTime                  @updatedAt @map("updated_at")
  // ACHATS-A — champs lotissement
  totalQuantity       Decimal?                  @map("total_quantity") @db.Decimal(10, 3)
  selectedSupplierId  Int?                      @map("selected_supplier_id")
  negotiatedPrice     Decimal?                  @map("negotiated_price") @db.Decimal(10, 2)
  lots                PurchaseLot[]
  offerLines          TenderOfferLine[]
  lineAwards          TenderLineAward[]
  poLines             PurchaseOrderLine[]       @relation("POLineToPR")

  // SPEC 29A — revision alert fields
  revisionAlert   Boolean   @default(false) @map("revision_alert")
  revisionNote    String?   @map("revision_note")
  revisionAckBy   String?   @map("revision_ack_by")
  revisionAckAt   DateTime? @map("revision_ack_at")
  revisionAckUser User?     @relation("RequirementRevisionAck", fields: [revisionAckBy], references: [id])

  // SPEC 39DE-v2 — PR indirects
  isIndirect           Boolean        @default(false) @map("is_indirect")
  expenseCodeId        Int?           @map("expense_code_id")
  expenseCode          ExpenseCode?   @relation("RequirementExpenseCode", fields: [expenseCodeId], references: [id])
  budgetPeriod         String?        @map("budget_period")
  preferredSupplierId  Int?           @map("preferred_supplier_id")
  preferredSupplier    Supplier?      @relation("PRPreferredSupplier", fields: [preferredSupplierId], references: [id])
  purchaseOrderId      Int?           @map("purchase_order_id")
  purchaseOrder        PurchaseOrder? @relation("PRtoPO", fields: [purchaseOrderId], references: [id])
  budgetOverrideBy     String?        @map("budget_override_by")
  budgetOverrideByUser User?          @relation("PRBudgetOverride", fields: [budgetOverrideBy], references: [id])
  budgetOverrideAt     DateTime?      @map("budget_override_at")
  deliveryCost         Decimal?       @map("delivery_cost") @db.Decimal(12, 2)
  isTemplate           Boolean        @default(false) @map("is_template")
  templateName         String?        @map("template_name")

  @@index([orderId])
  @@index([materialCategory])
  @@index([status])
  @@index([priority])
  @@index([materialCategory, status])
  @@index([archived])
  @@index([isIndirect])
  @@index([expenseCodeId])
  @@index([revisionAlert])
  @@map("purchase_requirements")
}

// ACHATS-A — Lotissement des besoins d'achat
model PurchaseLot {
  id                Int                     @id @default(autoincrement())
  requirementId     Int?                    @map("requirement_id")
  requirement       PurchaseRequirement?    @relation(fields: [requirementId], references: [id], onDelete: Cascade)
  lotNumber         Int                     @map("lot_number")
  quantity          Decimal                 @db.Decimal(15, 2)
  plannedDate       DateTime?               @map("planned_date")
  paymentDate       DateTime?               @map("payment_date")
  deliveryDate      DateTime?               @map("delivery_date")
  deliveryDays      Int?                    @map("delivery_days")
  status            PurchaseLotStatus       @default(PLANNED)
  validatedByFinId  String?                 @map("validated_by_fin_id")
  validatedByTechId String?                 @map("validated_by_tech_id")
  validatedAt       DateTime?               @map("validated_at")
  purchaseOrderId   Int?                    @map("purchase_order_id")
  purchaseOrder     PurchaseOrder?          @relation(fields: [purchaseOrderId], references: [id])
  invoices          POInvoice[]
  lotLines          PurchaseLotLine[]
  receptions        PurchaseLineReception[]
  notes             String?
  createdAt         DateTime                @default(now()) @map("created_at")
  updatedAt         DateTime                @updatedAt @map("updated_at")

  @@unique([requirementId, lotNumber])
  @@index([requirementId])
  @@index([status])
  @@index([purchaseOrderId])
  @@map("purchase_lots")
}

model PurchaseLotLine {
  id        Int               @id @default(autoincrement())
  lotId     Int               @map("lot_id")
  lot       PurchaseLot       @relation(fields: [lotId], references: [id], onDelete: Cascade)
  poLineId  Int               @map("po_line_id")
  poLine    PurchaseOrderLine @relation(fields: [poLineId], references: [id], onDelete: Cascade)
  quantity  Decimal           @db.Decimal(12, 2)
  createdAt DateTime          @default(now()) @map("created_at")

  @@unique([lotId, poLineId])
  @@index([lotId])
  @@index([poLineId])
  @@map("purchase_lot_lines")
}

// CDC §6.1 étapes 2-5 — Mini-appel d'offres
model Tender {
  id             Int          @id @default(autoincrement())
  referenceCode  String       @unique @map("reference_code")
  status         TenderStatus @default(DRAFT)
  description    String?
  createdById    String       @map("created_by_id")
  createdBy      User         @relation("TenderCreator", fields: [createdById], references: [id])
  deadline       DateTime?
  awardedOfferId Int?         @unique @map("awarded_offer_id")
  awardedOffer   TenderOffer? @relation("AwardedOffer", fields: [awardedOfferId], references: [id])
  awardedAt      DateTime?    @map("awarded_at")
  closedReason   String?      @map("closed_reason")
  notes                String?
  paymentTerms         String?      @map("payment_terms")
  desiredDeliveryDays  Int?         @map("desired_delivery_days")
  desiredDeliveryDate  DateTime?    @map("desired_delivery_date")
  tenderComment        String?      @map("tender_comment")
  createdAt            DateTime     @default(now()) @map("created_at")
  updatedAt            DateTime     @updatedAt @map("updated_at")

  // Relations
  requirements   PurchaseRequirement[]
  offers         TenderOffer[]
  purchaseOrders PurchaseOrder[]       @relation("TenderPurchaseOrders")
  dispatches     TenderDispatch[]
  lineAwards     TenderLineAward[]

  @@index([status])
  @@index([createdById])
  @@map("tenders")
}

// CDC §6.1 étape 3-4 — Offres fournisseurs
model TenderOffer {
  id              Int       @id @default(autoincrement())
  tenderId        Int       @map("tender_id")
  tender          Tender    @relation(fields: [tenderId], references: [id], onDelete: Cascade)
  supplierId      Int       @map("supplier_id")
  supplier        Supplier  @relation(fields: [supplierId], references: [id])
  proposedPrice   Decimal?  @map("proposed_price") @db.Decimal(12, 2)
  deliveryDays    Int?      @map("delivery_days")
  conditions      String?
  receivedAt      DateTime  @default(now()) @map("received_at")
  isSelected      Boolean   @default(false) @map("is_selected")
  receivedVia     String?   @map("received_via")
  validUntil      DateTime? @map("valid_until")
  notes           String?
  ranking         Int?
  attachmentPaths String[]  @default([]) @map("attachment_paths")

  // Relations
  awardedTender Tender?           @relation("AwardedOffer")
  lines         TenderOfferLine[]
  lineAwards    TenderLineAward[]

  @@index([tenderId])
  @@index([supplierId])
  @@map("tender_offers")
}

// SPEC 20A — Détail ligne par ligne des offres fournisseurs
model TenderOfferLine {
  id             Int                 @id @default(autoincrement())
  offerId        Int                 @map("offer_id")
  offer          TenderOffer         @relation(fields: [offerId], references: [id], onDelete: Cascade)
  requirementId  Int                 @map("requirement_id")
  requirement    PurchaseRequirement @relation(fields: [requirementId], references: [id])
  unitPrice      Decimal?            @map("unit_price") @db.Decimal(12, 2)
  unitPriceHt    Decimal?            @map("unit_price_ht") @db.Decimal(12, 2)
  vatRate        Decimal?            @map("vat_rate") @db.Decimal(5, 4)
  vatSource      String?             @map("vat_source")
  quantity       Decimal             @db.Decimal(12, 2)
  unit           String              @default("шт")
  totalLinePrice Decimal?            @map("total_line_price") @db.Decimal(12, 2)
  available      Boolean             @default(true)
  notes          String?
  createdAt      DateTime            @default(now()) @map("created_at")

  @@index([offerId])
  @@index([requirementId])
  @@map("tender_offer_lines")
}

// SPEC 20D — Attribution ligne par ligne des tenders
model TenderLineAward {
  id              Int                 @id @default(autoincrement())
  tenderId        Int                 @map("tender_id")
  tender          Tender              @relation(fields: [tenderId], references: [id], onDelete: Cascade)
  requirementId   Int                 @map("requirement_id")
  requirement     PurchaseRequirement @relation(fields: [requirementId], references: [id])
  offerId         Int                 @map("offer_id")
  offer           TenderOffer         @relation(fields: [offerId], references: [id])
  supplierId      Int                 @map("supplier_id")
  supplier        Supplier            @relation("TenderLineAwards", fields: [supplierId], references: [id])
  unitPrice       Decimal             @map("unit_price") @db.Decimal(12, 2)
  quantity        Decimal             @db.Decimal(12, 2)
  totalPrice      Decimal             @map("total_price") @db.Decimal(12, 2)
  awardedById     String              @map("awarded_by_id")
  awardedBy       User                @relation("LineAwarder", fields: [awardedById], references: [id])
  awardedAt       DateTime            @default(now()) @map("awarded_at")
  purchaseOrderId Int?                @map("purchase_order_id")
  purchaseOrder   PurchaseOrder?      @relation(fields: [purchaseOrderId], references: [id])
  notes           String?

  @@unique([tenderId, requirementId])
  @@index([tenderId])
  @@index([offerId])
  @@index([supplierId])
  @@index([purchaseOrderId])
  @@map("tender_line_awards")
}

// SPEC 19B — Suivi envois consultation fournisseurs
model TenderDispatch {
  id             Int       @id @default(autoincrement())
  tenderId       Int       @map("tender_id")
  tender         Tender    @relation(fields: [tenderId], references: [id], onDelete: Cascade)
  supplierId     Int       @map("supplier_id")
  supplier       Supplier  @relation("TenderDispatches", fields: [supplierId], references: [id])
  supplierEmail  String    @map("supplier_email")
  sentAt         DateTime? @map("sent_at")
  status         String    @default("PENDING") // PENDING, SENT, RESPONDED, NO_RESPONSE
  respondedAt    DateTime? @map("responded_at")
  dueDate                DateTime? @map("due_date")
  outgoingMessageId      String?   @map("outgoing_message_id")
  noResponseNotifiedAt   DateTime? @map("no_response_notified_at")
  notes               String?
  requirementIds      Json?     @map("requirement_ids")
  inboundEmails       InboundEmail[]
  createdAt           DateTime  @default(now()) @map("created_at")

  @@index([tenderId])
  @@index([supplierId])
  @@map("tender_dispatches")
}

// CDC §6.1 étapes 5-7 — Commande fournisseur
model PurchaseOrder {
  id                   Int                 @id @default(autoincrement())
  orderCode            String              @unique @map("order_code")
  supplierId           Int                 @map("supplier_id")
  supplier             Supplier            @relation(fields: [supplierId], references: [id])
  clientOrderId        Int?                @map("client_order_id")
  clientOrder          Order?              @relation(fields: [clientOrderId], references: [id])
  items                Json
  totalAmount          Decimal             @map("total_amount") @db.Decimal(12, 2)
  qrCodePath           String?             @map("qr_code_path")
  emailSentAt          DateTime?           @map("email_sent_at")
  batchNumber          Int?                @map("batch_number")
  totalBatches         Int?                @map("total_batches")
  status               PurchaseOrderStatus @default(DRAFT)
  invoiceValidated     Boolean             @default(false) @map("invoice_validated")
  isInternalTlt        Boolean             @default(false) @map("is_internal_tlt")
  tltPaymentMode       TltPaymentMode?     @map("tlt_payment_mode")
  drawingFilePaths     String[]            @map("drawing_file_paths")
  tenderId             Int?                @map("tender_id")
  tender               Tender?             @relation("TenderPurchaseOrders", fields: [tenderId], references: [id])
  createdById          String              @map("created_by_id")
  createdBy            User                @relation("POCreator", fields: [createdById], references: [id])
  expectedDeliveryDate DateTime?           @map("expected_delivery_date")
  actualDeliveryDate   DateTime?           @map("actual_delivery_date")
  deliveryNotes        String?             @map("delivery_notes")
  paymentStatus        String?             @map("payment_status")
  paidAmount           Decimal?            @map("paid_amount") @db.Decimal(12, 2)
  notes                String?
  archived             Boolean             @default(false)
  archivedAt           DateTime?           @map("archived_at")
  // SPEC-39A — classification budgétaire
  isIndirect           Boolean             @default(false) @map("is_indirect")
  expenseCodeId        Int?                @map("expense_code_id")
  expenseCode          ExpenseCode?        @relation(fields: [expenseCodeId], references: [id])
  budgetPeriod         String?             @map("budget_period")
  budgetOverrideBy     String?             @map("budget_override_by")
  budgetOverrideAt     DateTime?           @map("budget_override_at")
  supplierContractId   Int?                @map("supplier_contract_id")
  supplierContract     SupplierContract?   @relation(fields: [supplierContractId], references: [id])
  createdAt            DateTime            @default(now()) @map("created_at")
  updatedAt            DateTime            @updatedAt @map("updated_at")

  // Relations
  lines                      PurchaseOrderLine[]
  lots                       PurchaseLot[]
  tenderLineAwards           TenderLineAward[]
  invoices                   POInvoice[]
  paymentSchedule            POPaymentSchedule?
  paymentRequests            PaymentRequest[]       @relation("POPaymentRequests")
  sourcePurchaseRequirements PurchaseRequirement[]  @relation("PRtoPO")
  supplierDeliveryNotes      SupplierDeliveryNote[] @relation("PODeliveryNotes")

  poNature                     String?   @map("po_nature") // GOODS | SERVICE
  deliveryBySupplier           Boolean?  @map("delivery_by_supplier")
  expectedDocuments            ExpectedDocument[]
  correlatedEmails             InboundEmail[]  @relation("InboundEmailPO")

  manualInterventionRequired   Boolean   @default(false) @map("manual_intervention_required")
  manualInterventionReason     String?   @map("manual_intervention_reason")
  manualInterventionResolvedBy String?   @map("manual_intervention_resolved_by")
  manualInterventionResolvedAt DateTime? @map("manual_intervention_resolved_at")
  manualInterventionDecision   String?   @map("manual_intervention_decision")

  @@index([status])
  @@index([supplierId])
  @@index([clientOrderId])
  @@index([tenderId])
  @@index([createdById])
  @@index([expectedDeliveryDate])
  @@index([archived])
  @@index([expenseCodeId])
  @@index([isIndirect])
  @@index([supplierContractId])
  @@index([manualInterventionRequired])
  @@map("purchase_orders")
}

model PurchaseOrderLine {
  id                    Int                     @id @default(autoincrement())
  purchaseOrderId       Int                     @map("purchase_order_id")
  purchaseOrder         PurchaseOrder           @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
  description           String
  material              String
  quantity              Decimal                 @db.Decimal(12, 2)
  unit                  String                  @default("шт")
  estimatedPrice        Decimal?                @map("estimated_price") @db.Decimal(12, 2)
  finalPrice            Decimal?                @map("final_price") @db.Decimal(12, 2)
  sourceEstimateLineId  Int?                    @map("source_estimate_line_id")
  purchaseRequirementId Int?                    @map("purchase_requirement_id")
  purchaseRequirement   PurchaseRequirement?    @relation("POLineToPR", fields: [purchaseRequirementId], references: [id])
  consumedQuantity      Decimal?                @map("consumed_quantity") @db.Decimal(12, 2)
  receivedQuantity      Decimal                 @default(0) @map("received_quantity") @db.Decimal(12, 2)
  receivedAt            DateTime?               @map("received_at")
  lotLines              PurchaseLotLine[]
  receptions            PurchaseLineReception[]
  createdAt             DateTime                @default(now()) @map("created_at")
  updatedAt             DateTime                @updatedAt @map("updated_at")

  @@index([purchaseOrderId])
  @@index([purchaseRequirementId])
  @@map("purchase_order_lines")
}

// CDC §7.1 — Suivi coûts par commande
model FinancialTracking {
  id                 Int        @id @default(autoincrement())
  orderId            Int        @unique @map("order_id")
  order              Order      @relation(fields: [orderId], references: [id], onDelete: Cascade)
  budgetServices     Decimal    @default(0) @map("budget_services") @db.Decimal(12, 2)
  budgetMaterials    Decimal    @default(0) @map("budget_materials") @db.Decimal(12, 2)
  budgetLabor        Decimal    @default(0) @map("budget_labor") @db.Decimal(12, 2)
  budgetSupply       Decimal    @default(0) @map("budget_supply") @db.Decimal(12, 2)
  committedServices  Decimal    @default(0) @map("committed_services") @db.Decimal(12, 2)
  committedMaterials Decimal    @default(0) @map("committed_materials") @db.Decimal(12, 2)
  committedLabor     Decimal    @default(0) @map("committed_labor") @db.Decimal(12, 2)
  committedSupply    Decimal    @default(0) @map("committed_supply") @db.Decimal(12, 2)
  actualServices     Decimal    @default(0) @map("actual_services") @db.Decimal(12, 2)
  actualMaterials    Decimal    @default(0) @map("actual_materials") @db.Decimal(12, 2)
  actualLabor        Decimal    @default(0) @map("actual_labor") @db.Decimal(12, 2)
  actualSupply       Decimal    @default(0) @map("actual_supply") @db.Decimal(12, 2)
  alertLevel         AlertLevel @default(NONE) @map("alert_level")
  appliedRevisionIds Int[]      @default([]) @map("applied_revision_ids")
  lastRecalculatedAt DateTime?  @map("last_recalculated_at")
  notes              String?
  updatedAt          DateTime   @updatedAt @map("updated_at")

  @@map("financial_trackings")
}

// CDC §7.2 — Trésorerie
model CashflowEntry {
  id                 Int            @id @default(autoincrement())
  date               DateTime
  type               CashflowType
  category           String
  description        String
  amount             Decimal        @db.Decimal(14, 2)
  orderId            Int?           @map("order_id")
  order              Order?         @relation("OrderCashflow", fields: [orderId], references: [id])
  supplierId         Int?           @map("supplier_id")
  supplier           Supplier?      @relation("SupplierCashflow", fields: [supplierId], references: [id])
  clientId           Int?           @map("client_id")
  client             Client?        @relation("ClientCashflow", fields: [clientId], references: [id])
  isActual           Boolean        @default(true) @map("is_actual")
  source             CashflowSource @default(ERP)
  status             CashflowStatus @default(PLANNED)
  purchaseOrderId    Int?           @map("purchase_order_id")
  paymentRequestId   Int?           @map("payment_request_id")
  recurringPaymentId Int?           @map("recurring_payment_id")
  bankAccountId      String?        @map("bank_account_id")
  expenseCodeId      Int?           @map("expense_code_id")
  expenseCode        ExpenseCode?   @relation("CFExpenseCode", fields: [expenseCodeId], references: [id])
  notes              String?
  createdById        String?        @map("created_by_id")
  onecGuid           String?        @unique @map("onec_guid")
  onecSyncedAt       DateTime?      @map("onec_synced_at")
  counterparty       String?
  createdAt          DateTime       @default(now()) @map("created_at")
  updatedAt          DateTime       @updatedAt @map("updated_at")

  @@index([date])
  @@index([type])
  @@index([orderId])
  @@index([isActual])
  @@index([status])
  @@index([bankAccountId])
  @@index([category])
  @@map("cashflow_entries")
}

// CDC §7.2 — Saisie manuelle temporaire 1С (ДЗ, КЗ, avances)
model ManualEntry1C {
  id           Int       @id @default(autoincrement())
  type         String // DZ, KZ, ADVANCE_RECEIVED
  counterparty String
  description  String
  amount       Decimal   @db.Decimal(14, 2)
  dueDate      DateTime? @map("due_date")
  isActive     Boolean   @default(true) @map("is_active")
  createdAt    DateTime  @default(now()) @map("created_at")
  updatedAt    DateTime  @updatedAt @map("updated_at")

  @@index([type])
  @@index([isActive])
  @@map("manual_entries_1c")
}

// CDC §6.5 — Table de conversion aciers
model SteelReference {
  id             Int     @id @default(autoincrement())
  profileType    String  @map("profile_type")
  section        String
  weightPerMeter Decimal @map("weight_per_meter") @db.Decimal(10, 4)

  @@unique([profileType, section])
  @@index([profileType])
  @@map("steel_references")
}

// CDC §9 — Journal d'audit
model AuditLog {
  id         Int      @id @default(autoincrement())
  userId     String?  @map("user_id")
  user       User?    @relation(fields: [userId], references: [id])
  action     String
  entityType String   @map("entity_type")
  entityId   String   @map("entity_id")
  details    Json?
  ipAddress  String?  @map("ip_address")
  createdAt  DateTime @default(now()) @map("created_at")

  @@index([userId])
  @@index([entityType, entityId])
  @@index([createdAt])
  @@map("audit_logs")
}

// CDC §5.2 révisé — Фотофиксация commandes
model OrderPhoto {
  id          Int       @id @default(autoincrement())
  orderId     Int       @map("order_id")
  order       Order     @relation(fields: [orderId], references: [id], onDelete: Cascade)
  photoType   PhotoType @map("photo_type")
  filePath    String    @map("file_path")
  fileSize    Int       @map("file_size")
  mimeType    String    @map("mime_type")
  description String?
  takenById   String?   @map("taken_by_id")
  takenBy     User?     @relation(fields: [takenById], references: [id])
  isRequired  Boolean   @default(false) @map("is_required")
  deletedAt   DateTime? @map("deleted_at")
  takenAt     DateTime  @default(now()) @map("taken_at")
  createdAt   DateTime  @default(now()) @map("created_at")

  @@index([orderId])
  @@index([photoType])
  @@map("order_photos")
}

// CDC §7.2 révisé — Банковские выписки
model BankStatement {
  id                 Int                 @id @default(autoincrement())
  statementDate      DateTime            @map("statement_date")
  bankAccountNumber  String              @map("bank_account_number")
  balanceStart       Decimal             @map("balance_start") @db.Decimal(14, 2)
  balanceEnd         Decimal             @map("balance_end") @db.Decimal(14, 2)
  sourceFilePath     String?             @map("source_file_path")
  source             BankStatementSource @default(IMPORT_1C)
  verificationStatus VerificationStatus  @default(PENDING) @map("verification_status")
  errorNotes         String?             @map("error_notes")
  createdAt          DateTime            @default(now()) @map("created_at")
  updatedAt          DateTime            @updatedAt @map("updated_at")

  @@index([statementDate])
  @@index([verificationStatus])
  @@map("bank_statements")
}

// 1C OData sync log
model OnecSyncLog {
  id           Int       @id @default(autoincrement())
  entity       String
  status       String    @default("RUNNING")
  startedAt    DateTime  @default(now()) @map("started_at")
  completedAt  DateTime? @map("completed_at")
  created      Int       @default(0)
  updated      Int       @default(0)
  skipped      Int       @default(0)
  errors       Int       @default(0)
  errorDetails String?   @map("error_details")
  totalFetched Int       @default(0) @map("total_fetched")

  @@index([entity, startedAt])
  @@map("onec_sync_log")
}

// 1C OData — bank accounts reference
model OnecBankAccount {
  id        Int     @id @default(autoincrement())
  onecGuid  String  @unique @map("onec_guid")
  name      String
  shortName String  @map("short_name")
  number    String?

  @@map("onec_bank_accounts")
}

// Mapping MaterialCategory → SupplierTag names (configurable)
model CategoryTagMapping {
  id        Int      @id @default(autoincrement())
  category  String   @unique
  tagNames  String[] @map("tag_names")
  updatedAt DateTime @updatedAt @map("updated_at")

  @@map("category_tag_mappings")
}

// 1C OData — cashflow categories (статьи ДДС)
model OnecCashflowCategory {
  id          Int     @id @default(autoincrement())
  onecGuid    String  @unique @map("onec_guid")
  name        String
  erpCategory String? @map("erp_category")

  @@map("onec_cashflow_categories")
}

// SPEC 24F — Revision smeta post-lancement
model SmetaRevision {
  id         Int   @id @default(autoincrement())
  orderId    Int   @map("order_id")
  order      Order @relation(fields: [orderId], references: [id], onDelete: Cascade)
  oldSmetaId Int   @map("old_smeta_id")
  oldSmeta   Smeta @relation("OldSmeta", fields: [oldSmetaId], references: [id])
  newSmetaId Int   @map("new_smeta_id")
  newSmeta   Smeta @relation("NewSmeta", fields: [newSmetaId], references: [id])

  diffReport Json                   @map("diff_report")
  status     RevisionApprovalStatus @default(REV_PENDING)
  decisions  Json?

  approvedById String?   @map("approved_by_id")
  approvedBy   User?     @relation("SmetaRevisionApprover", fields: [approvedById], references: [id])
  approvedAt   DateTime? @map("approved_at")
  createdById  String    @map("created_by_id")
  createdBy    User      @relation("SmetaRevisionCreator", fields: [createdById], references: [id])
  createdAt    DateTime  @default(now()) @map("created_at")

  additionalCosts AdditionalCost[]

  @@index([orderId])
  @@index([oldSmetaId])
  @@index([newSmetaId])
  @@map("smeta_revisions")
}

// SPEC 24F — Surcoûts liés aux revisions smeta
model AdditionalCost {
  id         Int            @id @default(autoincrement())
  orderId    Int            @map("order_id")
  order      Order          @relation(fields: [orderId], references: [id], onDelete: Cascade)
  revisionId Int?           @map("revision_id")
  revision   SmetaRevision? @relation(fields: [revisionId], references: [id])

  type        AdditionalCostType
  description String
  amount      Decimal            @db.Decimal(12, 2)
  currency    String             @default("RUB")

  relatedPRId Int? @map("related_pr_id")
  relatedPOId Int? @map("related_po_id")

  status       AdditionalCostStatus @default(PENDING)
  approvedById String?              @map("approved_by_id")
  approvedBy   User?                @relation("AdditionalCostApprover", fields: [approvedById], references: [id])
  approvedAt   DateTime?            @map("approved_at")

  createdById String   @map("created_by_id")
  createdBy   User     @relation("AdditionalCostCreator", fields: [createdById], references: [id])
  createdAt   DateTime @default(now()) @map("created_at")

  @@index([orderId])
  @@index([revisionId])
  @@map("additional_costs")
}

// SPEC 27C — Budget consolidé + double validation
model BudgetValidation {
  id              Int                    @id @default(autoincrement())
  orderId         Int                    @unique @map("order_id")
  order           Order                  @relation(fields: [orderId], references: [id], onDelete: Cascade)
  totalEstimated  Decimal                @map("total_estimated") @db.Decimal(12, 2)
  totalAwarded    Decimal                @map("total_awarded") @db.Decimal(12, 2)
  totalPO         Decimal                @map("total_po") @db.Decimal(12, 2)
  variance        Decimal                @db.Decimal(12, 2)
  variancePercent Decimal                @map("variance_percent") @db.Decimal(10, 2)
  status          BudgetValidationStatus @default(PENDING)
  finValidatedBy  String?                @map("fin_validated_by")
  finValidator    User?                  @relation("BudgetFinValidator", fields: [finValidatedBy], references: [id])
  finValidatedAt  DateTime?              @map("fin_validated_at")
  finComment      String?                @map("fin_comment")
  techValidatedBy String?                @map("tech_validated_by")
  techValidator   User?                  @relation("BudgetTechValidator", fields: [techValidatedBy], references: [id])
  techValidatedAt DateTime?              @map("tech_validated_at")
  techComment     String?                @map("tech_comment")
  createdAt       DateTime               @default(now()) @map("created_at")
  updatedAt       DateTime               @updatedAt @map("updated_at")

  @@index([status])
  @@map("budget_validations")
}

enum BudgetValidationStatus {
  PENDING
  FIN_APPROVED
  TECH_APPROVED
  FULLY_APPROVED
  REJECTED
}

// ─── POInvoice (facture fournisseur liée à un PO) ─────────────────
model POInvoice {
  id               Int             @id @default(autoincrement())
  purchaseOrderId  Int             @map("purchase_order_id")
  purchaseOrder    PurchaseOrder   @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
  lotId            Int?            @map("lot_id")
  lot              PurchaseLot?    @relation(fields: [lotId], references: [id])
  invoiceNumber    String?         @map("invoice_number")
  amount           Decimal?        @db.Decimal(12, 2)
  status           InvoiceStatus   @default(PENDING_VALIDATION)
  filePath         String          @map("file_path")
  fileName         String          @map("file_name")
  dueDate          DateTime?       @map("due_date")
  paidAt           DateTime?       @map("paid_at")
  paidAmount       Decimal?        @map("paid_amount") @db.Decimal(12, 2)
  paymentRequestId Int?            @unique @map("payment_request_id")
  paymentRequest   PaymentRequest? @relation(fields: [paymentRequestId], references: [id])
  uploadedById     String          @map("uploaded_by_id")
  uploadedBy       User            @relation("POInvoiceUploadedBy", fields: [uploadedById], references: [id])
  notes            String?
  createdAt        DateTime        @default(now()) @map("created_at")
  updatedAt        DateTime        @updatedAt @map("updated_at")

  @@index([purchaseOrderId])
  @@index([lotId])
  @@index([status])
  @@map("po_invoices")
}

// ─── POPaymentSchedule (conditions de paiement d'un PO) ───────────
model POPaymentSchedule {
  id               Int                     @id @default(autoincrement())
  purchaseOrderId  Int                     @unique @map("purchase_order_id")
  purchaseOrder    PurchaseOrder           @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
  paymentType      PaymentType             @map("payment_type")
  postDeliveryDays Int?                    @map("post_delivery_days")
  postpayMode      PostpayMode             @default(SIMPLE) @map("postpay_mode")
  source           POPaymentScheduleSource @default(MANUAL)
  sourceContractId Int?                    @map("source_contract_id")
  createdAt        DateTime                @default(now()) @map("created_at")
  updatedAt        DateTime                @updatedAt @map("updated_at")
  installments     POInstallment[]

  @@map("po_payment_schedules")
}

// ─── POInstallment (tranches de paiement) ─────────────────────────
model POInstallment {
  id               Int               @id @default(autoincrement())
  scheduleId       Int               @map("schedule_id")
  schedule         POPaymentSchedule @relation(fields: [scheduleId], references: [id], onDelete: Cascade)
  percentage       Decimal           @db.Decimal(5, 2)
  amount           Decimal?          @db.Decimal(12, 2)
  dueDate          DateTime?         @map("due_date")
  label            String?
  paidAt           DateTime?         @map("paid_at")
  paidAmount       Decimal?          @map("paid_amount") @db.Decimal(12, 2)
  sortOrder        Int               @default(0) @map("sort_order")
  isPostDelivery   Boolean           @default(false) @map("is_post_delivery")
  paymentRequestId Int?              @unique @map("payment_request_id")
  paymentRequest   PaymentRequest?   @relation(fields: [paymentRequestId], references: [id])

  @@index([scheduleId])
  @@map("po_installments")
}

model UserNotificationPreference {
  id        Int      @id @default(autoincrement())
  userId    String   @map("user_id")
  user      User     @relation(fields: [userId], references: [id], onDelete: Cascade)
  category  String // PAYMENT_DUE, PR_APPROVE, PR_CONFIRM, TENDER_OFFER, SMETA_REVISION, PO_DELIVERY, LOT_ORDER_DUE
  inApp     Boolean  @default(true) @map("in_app")
  email     Boolean  @default(false)
  telegram  Boolean  @default(false)
  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  @@unique([userId, category])
  @@map("user_notification_preferences")
}

// ══════════════════════════════════════════════════════════════════
// CASHFLOW ENTRÉES CLIENTS (S42C)
// ══════════════════════════════════════════════════════════════════

model PaymentTemplate {
  id          Int                   @id @default(autoincrement())
  name        String
  description String?
  isActive    Boolean               @default(true)
  terms       PaymentTemplateTerm[]
  createdAt   DateTime              @default(now())
  updatedAt   DateTime              @updatedAt

  @@map("payment_templates")
}

model PaymentTemplateTerm {
  id         Int             @id @default(autoincrement())
  templateId Int             @map("template_id")
  template   PaymentTemplate @relation(fields: [templateId], references: [id], onDelete: Cascade)
  percent    Decimal         @db.Decimal(5, 2)
  trigger    PaymentTrigger
  offsetDays Int             @default(0) @map("offset_days")
  label      String
  sortOrder  Int             @default(0) @map("sort_order")

  @@map("payment_template_terms")
}

model ClientInvoice {
  id            Int                 @id @default(autoincrement())
  orderId       Int                 @map("order_id")
  order         Order               @relation(fields: [orderId], references: [id])
  invoiceNumber String              @unique @map("invoice_number")
  invoiceDate   DateTime            @map("invoice_date") @db.Date
  amount        Decimal             @db.Decimal(14, 2)
  status        ClientInvoiceStatus @default(DRAFT)
  notes         String?
  installments  ClientInstallment[]
  createdAt     DateTime            @default(now()) @map("created_at")
  updatedAt     DateTime            @updatedAt @map("updated_at")
  documents     Document[]

  @@index([orderId])
  @@map("client_invoices")
}

model PlannedDeliveryLot {
  id             Int                      @id @default(autoincrement())
  orderId        Int                      @map("order_id")
  order          Order                    @relation(fields: [orderId], references: [id])
  label          String                   @db.VarChar(120)
  plannedDate    DateTime                 @map("planned_date") @db.Date
  quantity       Decimal                  @default(1) @db.Decimal(14, 4)
  amountSnapshot Decimal?                 @map("amount_snapshot") @db.Decimal(14, 2)
  sortOrder      Int                      @default(0) @map("sort_order")
  status         PlannedDeliveryLotStatus @default(PLANNED)
  notes          String?
  deliveryLot    DeliveryLot?             @relation("PlannedToActual")
  forecasts      ForecastInstallment[]    @relation("PlannedLotForecasts")
  createdAt      DateTime                 @default(now()) @map("created_at")
  updatedAt      DateTime                 @updatedAt @map("updated_at")

  @@index([orderId])
  @@map("planned_delivery_lots")
}

model DeliveryLot {
  id               Int                 @id @default(autoincrement())
  orderId          Int                 @map("order_id")
  order            Order               @relation(fields: [orderId], references: [id])
  updNumber        String              @unique @map("upd_number")
  updDate          DateTime            @map("upd_date") @db.Date
  amount           Decimal             @db.Decimal(14, 2)
  status           DeliveryLotStatus   @default(DRAFT)
  notes            String?
  signedByClientAt DateTime?           @map("signed_by_client_at")
  plannedLotId     Int?                @unique @map("planned_lot_id")
  plannedLot       PlannedDeliveryLot? @relation("PlannedToActual", fields: [plannedLotId], references: [id], onDelete: SetNull)
  installments     ClientInstallment[] @relation("DeliveryLotInstallments")
  documents        Document[]
  createdAt        DateTime            @default(now()) @map("created_at")
  updatedAt        DateTime            @updatedAt @map("updated_at")

  @@index([orderId])
  @@map("delivery_lots")
}

model ClientInstallment {
  id             Int                     @id @default(autoincrement())
  orderId        Int                     @map("order_id")
  order          Order                   @relation(fields: [orderId], references: [id])
  invoiceId      Int?                    @map("invoice_id")
  invoice        ClientInvoice?          @relation(fields: [invoiceId], references: [id])
  shipmentId     Int?                    @map("shipment_id")
  shipment       DeliveryLot?            @relation("DeliveryLotInstallments", fields: [shipmentId], references: [id])
  contractTermId Int?                    @map("contract_term_id")
  contractTerm   ContractPaymentTerm?    @relation(fields: [contractTermId], references: [id], onDelete: SetNull)
  forecastLink   ForecastInstallment?    @relation("ForecastLink")
  amount         Decimal                 @db.Decimal(14, 2)
  dueDate        DateTime                @map("due_date") @db.Date
  trigger        PaymentTrigger
  label          String
  status         ClientInstallmentStatus @default(PENDING)
  notes          String?
  payments       ClientPaymentReceived[]
  createdAt      DateTime                @default(now()) @map("created_at")
  updatedAt      DateTime                @updatedAt @map("updated_at")

  @@index([orderId])
  @@index([invoiceId])
  @@index([shipmentId])
  @@index([contractTermId])
  @@index([dueDate])
  @@map("client_installments")
}

model ClientPaymentReceived {
  id            Int               @id @default(autoincrement())
  installmentId Int               @map("installment_id")
  installment   ClientInstallment @relation(fields: [installmentId], references: [id])
  amount        Decimal           @db.Decimal(14, 2)
  receivedAt    DateTime          @map("received_at") @db.Date
  bankReference String?           @map("bank_reference")
  onecId        String?           @map("onec_id")
  notes         String?
  createdAt     DateTime          @default(now()) @map("created_at")

  @@index([installmentId])
  @@index([onecId])
  @@map("client_payments_received")
}

model ForecastInstallment {
  id Int @id @default(autoincrement())

  orderId Int   @map("order_id")
  order   Order @relation(fields: [orderId], references: [id], onDelete: Cascade)

  contractTermId Int?                 @map("contract_term_id")
  contractTerm   ContractPaymentTerm? @relation(fields: [contractTermId], references: [id], onDelete: SetNull)

  expectedDate   DateTime @map("expected_date") @db.Date
  expectedAmount Decimal  @map("expected_amount") @db.Decimal(14, 2)
  realizedAmount Decimal  @default(0) @map("realized_amount") @db.Decimal(14, 2)

  status       ForecastStatus       @default(EXTRAPOLATED)
  sourceType   ForecastSourceType   @default(AUTO_GENERATED) @map("source_type")
  triggerPhase ForecastTriggerPhase @default(ORDER_CREATED) @map("trigger_phase")

  wasManuallyEdited Boolean @default(false) @map("was_manually_edited")

  linkedInstallmentId Int?               @unique @map("linked_installment_id")
  linkedInstallment   ClientInstallment? @relation("ForecastLink", fields: [linkedInstallmentId], references: [id], onDelete: SetNull)

  parentForecastId Int?                  @map("parent_forecast_id")
  parentForecast   ForecastInstallment?  @relation("ForecastResidualChain", fields: [parentForecastId], references: [id], onDelete: SetNull)
  childForecasts   ForecastInstallment[] @relation("ForecastResidualChain")

  rebalancedFromLinkId Int?                  @map("rebalanced_from_link_id")
  rebalancedFromLink   ForecastInstallment?  @relation("RebalanceChain", fields: [rebalancedFromLinkId], references: [id])
  rebalancedTargets    ForecastInstallment[] @relation("RebalanceChain")
  rebalanceDelta       Decimal?              @map("rebalance_delta") @db.Decimal(14, 2)

  rebalanceLogsAsTarget ForecastRebalanceLog[] @relation("RebalanceLogTarget")
  rebalanceLogsAsSource ForecastRebalanceLog[] @relation("RebalanceLogSource")

  plannedLotId Int?                @map("planned_lot_id")
  plannedLot   PlannedDeliveryLot? @relation("PlannedLotForecasts", fields: [plannedLotId], references: [id], onDelete: SetNull)

  label String?
  notes String?

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  @@index([orderId])
  @@index([expectedDate])
  @@index([status])
  @@index([rebalancedFromLinkId])
  @@index([plannedLotId])
  @@map("forecast_installments")
}

model ClientContract {
  id             Int                   @id @default(autoincrement())
  clientId       Int                   @map("client_id")
  client         Client                @relation(fields: [clientId], references: [id])
  contractNumber String                @map("contract_number")
  contractDate   DateTime              @map("contract_date") @db.Date
  startDate      DateTime              @map("start_date") @db.Date
  endDate        DateTime?             @map("end_date") @db.Date
  status         ContractStatus        @default(DRAFT)
  notes          String?
  terms          ContractPaymentTerm[]
  orders         Order[]               @relation("OrderClientContract")
  documents      Document[]
  createdAt      DateTime              @default(now()) @map("created_at")
  updatedAt      DateTime              @updatedAt @map("updated_at")

  @@unique([clientId, contractNumber])
  @@index([clientId])
  @@index([status])
  @@map("client_contracts")
}

model ContractPaymentTerm {
  id           Int                   @id @default(autoincrement())
  contractId   Int                   @map("contract_id")
  contract     ClientContract        @relation(fields: [contractId], references: [id], onDelete: Cascade)
  percent      Decimal               @db.Decimal(5, 2)
  trigger      PaymentTrigger
  offsetDays   Int                   @default(0) @map("offset_days")
  label        String
  sortOrder    Int                   @default(0) @map("sort_order")
  forecasts    ForecastInstallment[]
  installments ClientInstallment[]

  @@index([contractId])
  @@map("contract_payment_terms")
}

// ══════════════════════════════════════════════════════════════════
// S42K — Configuration du tracking documents sans fichier
// ══════════════════════════════════════════════════════════════════

model FileTrackingConfig {
  id                            String   @id @default("singleton")
  clientContractThresholdDays   Int      @default(15) @map("client_contract_threshold_days")
  deliveryLotThresholdDays      Int      @default(10) @map("delivery_lot_threshold_days")
  clientInvoiceThresholdDays    Int      @default(3) @map("client_invoice_threshold_days")
  purchaseOrderThresholdDays    Int      @default(7) @map("purchase_order_threshold_days")
  supplierContractThresholdDays Int      @default(15) @map("supplier_contract_threshold_days")
  escalationThresholdDays       Int      @default(30) @map("escalation_threshold_days")
  reminderIntervalDays          Int      @default(7) @map("reminder_interval_days")
  enabled                       Boolean  @default(true)
  updatedAt                     DateTime @updatedAt @map("updated_at")
  updatedById                   String?  @map("updated_by_id")
  updatedBy                     User?    @relation(fields: [updatedById], references: [id])

  @@map("file_tracking_configs")
}

model ForecastRebalanceLog {
  id         String              @id @default(uuid())
  targetId   Int                 @map("target_id")
  target     ForecastInstallment @relation("RebalanceLogTarget", fields: [targetId], references: [id])
  sourceId   Int                 @map("source_id")
  source     ForecastInstallment @relation("RebalanceLogSource", fields: [sourceId], references: [id])
  delta      Decimal             @db.Decimal(14, 2)
  appliedAt  DateTime            @default(now()) @map("applied_at")
  reversedAt DateTime?           @map("reversed_at")
  userId     String              @map("user_id")
  user       User                @relation(fields: [userId], references: [id])

  @@index([targetId, reversedAt])
  @@index([sourceId, reversedAt])
  @@map("forecast_rebalance_logs")
}

// S42-PLANNING-1 — Réceptions au niveau position PO
model PurchaseLineReception {
  id                     Int                   @id @default(autoincrement())
  poLineId               Int                   @map("po_line_id")
  poLine                 PurchaseOrderLine     @relation(fields: [poLineId], references: [id], onDelete: Cascade)
  lotId                  Int?                  @map("lot_id")
  lot                    PurchaseLot?          @relation(fields: [lotId], references: [id])
  receivedQty            Decimal               @map("received_qty") @db.Decimal(12, 2)
  receivedAt             DateTime              @map("received_at")
  transportDocNum        String?               @map("transport_doc_num")
  documentMissing        Boolean               @default(false) @map("document_missing")
  qualityNotes           String?               @map("quality_notes")
  status                 ReceptionStatus       @default(DRAFT)
  createdById            String                @map("created_by_id")
  createdBy              User                  @relation("ReceptionCreator", fields: [createdById], references: [id])
  verifiedById           String?               @map("verified_by_id")
  verifiedBy             User?                 @relation("ReceptionVerifier", fields: [verifiedById], references: [id])
  verifiedAt             DateTime?             @map("verified_at")
  accountedById          String?               @map("accounted_by_id")
  accountedBy            User?                 @relation("ReceptionAccountant", fields: [accountedById], references: [id])
  accountedAt            DateTime?             @map("accounted_at")
  discrepancyNotes       String?               @map("discrepancy_notes")
  supplierDeliveryNoteId Int?                  @map("supplier_delivery_note_id")
  supplierDeliveryNote   SupplierDeliveryNote? @relation("SDNReceptions", fields: [supplierDeliveryNoteId], references: [id])
  createdAt              DateTime              @default(now()) @map("created_at")
  updatedAt              DateTime              @updatedAt @map("updated_at")

  @@index([poLineId])
  @@index([lotId])
  @@index([status])
  @@index([documentMissing])
  @@index([supplierDeliveryNoteId])
  @@map("purchase_line_receptions")
}

// S42-PLANNING-1 — Notes overlay Order × MaterialCategory
model OrderCategoryNote {
  id          Int              @id @default(autoincrement())
  orderId     Int              @map("order_id")
  order       Order            @relation(fields: [orderId], references: [id], onDelete: Cascade)
  category    MaterialCategory
  note        String           @db.VarChar(200)
  createdById String           @map("created_by_id")
  createdBy   User             @relation("OrderCategoryNoteCreator", fields: [createdById], references: [id])
  createdAt   DateTime         @default(now()) @map("created_at")
  updatedAt   DateTime         @updatedAt @map("updated_at")

  @@unique([orderId, category])
  @@index([orderId])
  @@map("order_category_notes")
}

enum HolidayType {
  FIXED
  WORKING_SATURDAY
}

model PublicHoliday {
  id          Int         @id @default(autoincrement())
  date        DateTime    @unique @db.Date
  name        String
  holidayType HolidayType @default(FIXED) @map("holiday_type")
  createdAt   DateTime    @default(now()) @map("created_at")
  updatedAt   DateTime    @updatedAt @map("updated_at")

  @@map("public_holidays")
}

enum SupplierDeliveryNoteStatus {
  DRAFT
  SIGNED
  CANCELLED
}

enum PostpayMode {
  SIMPLE
  PER_DELIVERY
}

enum POPaymentScheduleSource {
  MANUAL
  AUTO_FROM_CONTRACT
  AUTO_FROM_TLT
}

model SupplierDeliveryNote {
  id              Int                        @id @default(autoincrement())
  number          String
  signedDate      DateTime                   @map("signed_date") @db.Date
  supplierId      Int                        @map("supplier_id")
  supplier        Supplier                   @relation("SupplierDNs", fields: [supplierId], references: [id])
  purchaseOrderId Int?                       @map("purchase_order_id")
  purchaseOrder   PurchaseOrder?             @relation("PODeliveryNotes", fields: [purchaseOrderId], references: [id])
  status          SupplierDeliveryNoteStatus @default(DRAFT)
  notes           String?
  receptions      PurchaseLineReception[]    @relation("SDNReceptions")
  documents       Document[]                 @relation("SDNDocuments")
  createdAt       DateTime                   @default(now()) @map("created_at")
  updatedAt       DateTime                   @updatedAt @map("updated_at")

  @@unique([supplierId, number])
  @@index([purchaseOrderId])
  @@index([status])
  @@map("supplier_delivery_notes")
}

// CDC STD-2 — Statut du pricing produit
enum PricingStatus {
  ACTIVE
  PENDING_APPROVAL
}

// CDC STD-2 — Type de changement audit pricing
enum PricingChangeType {
  CREATED
  CHANGE_REQUESTED
  APPROVED
  REJECTED
  SUPPLIER_CHANGED
}

// CDC STD-2 — Pricing par ligne smeta orpheline avec workflow d'approbation
model ProductMaterialPricing {
  id          Int       @id @default(autoincrement())
  productId   Int       @map("product_id")
  product     Product   @relation(fields: [productId], references: [id], onDelete: Cascade)
  smetaLineId Int       @unique @map("smeta_line_id")
  smetaLine   SmetaLine @relation(fields: [smetaLineId], references: [id], onDelete: Cascade)

  supplierId Int      @map("supplier_id")
  supplier   Supplier @relation("SupplierPricings", fields: [supplierId], references: [id])

  currentUnitPrice    Decimal  @map("current_unit_price") @db.Decimal(12, 2)
  currentDeliveryDays Int?     @map("current_delivery_days")
  currentSetSince     DateTime @default(now()) @map("current_set_since")

  status               PricingStatus @default(ACTIVE)
  pendingUnitPrice     Decimal?      @map("pending_unit_price") @db.Decimal(12, 2)
  pendingDeliveryDays  Int?          @map("pending_delivery_days")
  pendingSupplierId    Int?          @map("pending_supplier_id")
  pendingReason        String?       @map("pending_reason") @db.VarChar(2000)
  pendingRequestedById String?       @map("pending_requested_by_id")
  pendingRequestedBy   User?         @relation("PricingChangeRequester", fields: [pendingRequestedById], references: [id])
  pendingRequestedAt   DateTime?     @map("pending_requested_at")

  lastApprovedById   String?   @map("last_approved_by_id")
  lastApprovedBy     User?     @relation("PricingApprover", fields: [lastApprovedById], references: [id])
  lastApprovedAt     DateTime? @map("last_approved_at")
  lastRejectedReason String?   @map("last_rejected_reason") @db.VarChar(2000)

  createdById String   @map("created_by_id")
  createdBy   User     @relation("PricingCreator", fields: [createdById], references: [id])
  createdAt   DateTime @default(now()) @map("created_at")
  updatedAt   DateTime @updatedAt @map("updated_at")

  history ProductMaterialPricingHistory[]

  @@index([productId, status])
  @@index([supplierId])
  @@map("product_material_pricings")
}

// CDC STD-2 — Audit historique des changements de pricing
model ProductMaterialPricingHistory {
  id        Int                    @id @default(autoincrement())
  pricingId Int                    @map("pricing_id")
  pricing   ProductMaterialPricing @relation(fields: [pricingId], references: [id], onDelete: Cascade)

  unitPriceBefore    Decimal? @map("unit_price_before") @db.Decimal(12, 2)
  unitPriceAfter     Decimal? @map("unit_price_after") @db.Decimal(12, 2)
  deliveryDaysBefore Int?     @map("delivery_days_before")
  deliveryDaysAfter  Int?     @map("delivery_days_after")
  supplierIdBefore   Int?     @map("supplier_id_before")
  supplierIdAfter    Int?     @map("supplier_id_after")

  changeType   PricingChangeType
  changeReason String?           @map("change_reason") @db.VarChar(2000)
  changedById  String            @map("changed_by_id")
  changedBy    User              @relation("PricingHistoryActor", fields: [changedById], references: [id])
  changedAt    DateTime          @default(now()) @map("changed_at")

  variationPercent Decimal? @map("variation_percent") @db.Decimal(6, 2)

  @@index([pricingId, changedAt])
  @@index([changeType])
  @@map("product_material_pricing_history")
}

// SPEC HELP-MODULE-P0 — Articles d'aide intégrés
enum HelpCategory {
  GLOSSARY
  WORKFLOW
  FAQ
  MODULE_REF
  INTRO
  AI_MODULES
}

model HelpArticle {
  id          Int          @id @default(autoincrement())
  slug        String       @unique
  titleRu     String       @map("title_ru")
  bodyMd      String       @map("body_md") @db.Text
  category    HelpCategory
  tags        String[]     @default([])
  isPublished Boolean      @default(true) @map("is_published")
  createdAt   DateTime     @default(now()) @map("created_at")
  updatedAt   DateTime     @updatedAt @map("updated_at")
  createdById String?      @map("created_by_id")
  createdBy   User?        @relation("HelpArticleCreatedBy", fields: [createdById], references: [id])

  @@index([category, isPublished])
  @@index([isPublished])
  @@map("help_articles")
}

model McpErpContextAudit {
  id         Int      @id @default(autoincrement())
  toolName   String   @map("tool_name")
  arguments  Json?
  resultSize Int?     @map("result_size")
  durationMs Int      @map("duration_ms")
  callerId   String?  @map("caller_id")
  caller     User?    @relation(fields: [callerId], references: [id])
  error      String?
  createdAt  DateTime @default(now()) @map("created_at")

  @@index([createdAt])
  @@index([toolName])
  @@map("mcp_erp_context_audit")
}

model AIAdvisorConversation {
  id             Int       @id @default(autoincrement())
  userId         String    @map("user_id")
  user           User      @relation(fields: [userId], references: [id])
  title          String?
  contextPage    String?   @map("context_page")
  archived       Boolean   @default(false)
  archivedAt     DateTime? @map("archived_at")
  totalTokensIn  Int       @default(0) @map("total_tokens_in")
  totalTokensOut Int       @default(0) @map("total_tokens_out")
  createdAt      DateTime  @default(now()) @map("created_at")
  updatedAt      DateTime  @updatedAt @map("updated_at")

  messages    AIAdvisorMessage[]
  suggestions AIAdvisorArticleSuggestion[]

  @@index([userId, archived, updatedAt(sort: Desc)])
  @@map("ai_advisor_conversations")
}

model AIAdvisorMessage {
  id             Int                   @id @default(autoincrement())
  conversationId Int                   @map("conversation_id")
  conversation   AIAdvisorConversation @relation(fields: [conversationId], references: [id], onDelete: Cascade)
  role           String
  content        String                @db.Text
  contextPage    String?               @map("context_page")
  tokensInput    Int?                  @map("tokens_input")
  tokensOutput   Int?                  @map("tokens_output")
  toolsUsed      Json?                 @map("tools_used")
  modelUsed      String?               @map("model_used")
  durationMs     Int?                  @map("duration_ms")
  status         String                @default("COMPLETE")
  errorMessage   String?               @map("error_message")
  createdAt      DateTime              @default(now()) @map("created_at")

  @@index([conversationId, createdAt])
  @@map("ai_advisor_messages")
}

model AIAdvisorArticleSuggestion {
  id              Int                   @id @default(autoincrement())
  conversationId  Int                   @map("conversation_id")
  conversation    AIAdvisorConversation @relation(fields: [conversationId], references: [id])
  messageId       Int?                  @map("message_id")
  action          String
  targetArticleId Int?                  @map("target_article_id")
  proposedTitle   String?               @map("proposed_title")
  proposedContent String                @map("proposed_content") @db.Text
  status          String                @default("PENDING")
  reviewedById    String?               @map("reviewed_by_id")
  reviewedBy      User?                 @relation("SuggestionReviewer", fields: [reviewedById], references: [id])
  reviewedAt      DateTime?             @map("reviewed_at")
  reviewerNotes   String?               @map("reviewer_notes")
  createdAt       DateTime              @default(now()) @map("created_at")

  @@index([status, createdAt])
  @@map("ai_advisor_article_suggestions")
}

model AIAdvisorQuota {
  id                   Int    @id @default(autoincrement())
  userId               String @map("user_id")
  user                 User   @relation(fields: [userId], references: [id])
  monthYear            String @map("month_year")
  advisorRequestsUsed  Int    @default(0) @map("advisor_requests_used")
  advisorRequestsLimit Int    @default(200) @map("advisor_requests_limit")
  tokensInputUsed      Int    @default(0) @map("tokens_input_used")
  tokensOutputUsed     Int    @default(0) @map("tokens_output_used")
  costEstimateCents    Int    @default(0) @map("cost_estimate_cents")
  maxCostCents         Int    @default(0) @map("max_cost_cents")

  @@unique([userId, monthYear])
  @@index([monthYear])
  @@map("ai_advisor_quota")
}

// ─── AI CONSTRUCTOR (BUILDER) ────────────────────────────────────────

enum AIConstructorFeatureStatus {
  DRAFT
  ANALYZING
  AWAITING_DESIGN_REVIEW
  GENERATING
  DEPLOYING
  TESTING
  AWAITING_FINAL_REVIEW
  APPROVED
  MERGING
  MERGED
  REVERTED
  REJECTED
  FAILED
  ABANDONED
}

enum AIConstructorFeatureType {
  FIELD_ADD
  TABLE_NEW
  WORKFLOW
}

enum AIConstructorRevertItemAction {
  CONSERVER
  ARCHIVER
  EXPORTER
  CORRIGER
}

enum AIConstructorRevertStatus {
  COLLECTING
  AWAITING_DECISIONS
  COMMITTING
  COMPLETED
  ABORTED
}

model AIConstructorFeature {
  id            Int                        @id @default(autoincrement())
  title         String
  description   String                     @db.Text
  requestedById String                     @map("requested_by_id")
  requestedBy   User                       @relation("FeatureRequestedBy", fields: [requestedById], references: [id])
  status        AIConstructorFeatureStatus @default(DRAFT)
  type          AIConstructorFeatureType?

  branchName               String?   @map("branch_name")
  stagingPort              Int?      @map("staging_port")
  stagingDbName            String?   @map("staging_db_name")
  stagingExpiresAt         DateTime? @map("staging_expires_at")
  stagingUrlFrontend       String?   @map("staging_url_frontend")
  stagingUrlBackend        String?   @map("staging_url_backend")
  stagingContainerBackend  String?   @map("staging_container_backend")
  stagingContainerFrontend String?   @map("staging_container_frontend")
  generatedSpec            String?   @map("generated_spec") @db.Text

  filesAdded    Json? @map("files_added")
  filesModified Json? @map("files_modified")

  vitestResults     Json? @map("vitest_results")
  playwrightResults Json? @map("playwright_results")

  reviewedById  String?   @map("reviewed_by_id")
  reviewedBy    User?     @relation("FeatureReviewedBy", fields: [reviewedById], references: [id])
  reviewedAt    DateTime? @map("reviewed_at")
  reviewerNotes String?   @map("reviewer_notes") @db.Text

  mergedAt             DateTime? @map("merged_at")
  mergedCommitSha      String?   @map("merged_commit_sha")
  mergeAdvisoryLockKey BigInt?   @map("merge_advisory_lock_key")

  preSnapshotDataPath       String?   @map("pre_snapshot_data_path")
  preSnapshotTablesImpacted String[]  @map("pre_snapshot_tables_impacted")
  branchDeletedAt           DateTime? @map("branch_deleted_at")

  validationResult Json? @map("validation_result")
  retryCount       Int   @default(0) @map("retry_count")

  totalTokensIn     Int @default(0) @map("total_tokens_in")
  totalTokensOut    Int @default(0) @map("total_tokens_out")
  costEstimateCents Int @default(0) @map("cost_estimate_cents")

  createdAt DateTime @default(now()) @map("created_at")
  updatedAt DateTime @updatedAt @map("updated_at")

  history AIConstructorFeatureHistory[]
  reverts AIConstructorRevert[]

  @@index([requestedById, status, createdAt(sort: Desc)])
  @@index([status])
  @@map("ai_constructor_features")
}

model AIConstructorFeatureHistory {
  id         Int                         @id @default(autoincrement())
  featureId  Int                         @map("feature_id")
  feature    AIConstructorFeature        @relation(fields: [featureId], references: [id], onDelete: Cascade)
  action     String
  fromStatus AIConstructorFeatureStatus? @map("from_status")
  toStatus   AIConstructorFeatureStatus? @map("to_status")
  actorId    String?                     @map("actor_id")
  actor      User?                       @relation(fields: [actorId], references: [id])
  payload    Json?
  notes      String?                     @db.Text
  createdAt  DateTime                    @default(now()) @map("created_at")

  @@index([featureId, createdAt])
  @@map("ai_constructor_feature_history")
}

model AIConstructorRevert {
  id                 Int                       @id @default(autoincrement())
  featureId          Int                       @unique @map("feature_id")
  feature            AIConstructorFeature      @relation(fields: [featureId], references: [id])
  status             AIConstructorRevertStatus @default(COLLECTING)
  startedAt          DateTime                  @default(now()) @map("started_at")
  committedAt        DateTime?                 @map("committed_at")
  tablesImpacted     String[]                  @map("tables_impacted")
  itemsTotal         Int                       @default(0) @map("items_total")
  itemsDecided       Int                       @default(0) @map("items_decided")
  gitRevertCommitSha String?                   @map("git_revert_commit_sha")
  initiatedById      String                    @map("initiated_by_id")
  initiatedBy        User                      @relation(fields: [initiatedById], references: [id])
  errorMessage       String?                   @map("error_message")
  notes              String?                   @db.Text
  createdAt          DateTime                  @default(now()) @map("created_at")

  items AIConstructorRevertItem[]

  @@index([featureId])
  @@index([status])
  @@map("ai_constructor_reverts")
}

model AIConstructorRevertItem {
  id             Int                            @id @default(autoincrement())
  revertId       Int                            @map("revert_id")
  revert         AIConstructorRevert            @relation(fields: [revertId], references: [id], onDelete: Cascade)
  entityType     String                         @map("entity_type")
  entityId       String                         @map("entity_id")
  entitySnapshot Json                           @map("entity_snapshot")
  action         AIConstructorRevertItemAction?
  decidedAt      DateTime?                      @map("decided_at")
  decidedById    String?                        @map("decided_by_id")
  decidedBy      User?                          @relation(fields: [decidedById], references: [id])
  exportPath     String?                        @map("export_path")
  correctionNote String?                        @map("correction_note") @db.Text
  appliedAt      DateTime?                      @map("applied_at")

  @@index([revertId])
  @@index([entityType, entityId])
  @@map("ai_constructor_revert_items")
}

model AIConstructorBuilderQuota {
  id                    Int    @id @default(autoincrement())
  userId                String @map("user_id")
  user                  User   @relation(fields: [userId], references: [id])
  monthYear             String @map("month_year")
  featuresRequestsUsed  Int    @default(0) @map("features_requests_used")
  featuresRequestsLimit Int    @default(20) @map("features_requests_limit")
  tokensInputUsed       Int    @default(0) @map("tokens_input_used")
  tokensOutputUsed      Int    @default(0) @map("tokens_output_used")
  costEstimateCents     Int    @default(0) @map("cost_estimate_cents")
  maxCostCents          Int    @default(0) @map("max_cost_cents")

  @@unique([userId, monthYear])
  @@index([monthYear])
  @@map("ai_constructor_builder_quota")
}

// ══════════════════════════════════════════════════════════════════
// BUG REPORTS — Telegram bot feedback channel
// ══════════════════════════════════════════════════════════════════

enum BugSeverity {
  LOW
  MEDIUM
  HIGH
  CRITICAL
}

enum BugReportStatus {
  NEW
  IN_PROGRESS
  FIXED
  CLOSED
  WONTFIX
}

enum BugSource {
  WEB_UI
  TELEGRAM
  EMAIL
  MANUAL
  COPILOT
}

model BugReport {
  id          Int             @id @default(autoincrement())
  title       String          @default("") @db.VarChar(255)
  description String          @db.Text
  module      String?
  severity    BugSeverity     @default(MEDIUM)
  status      BugReportStatus @default(NEW)
  source      BugSource       @default(TELEGRAM)
  sourceMeta  Json?           @map("source_meta")

  screenshotPath String? @map("screenshot_path")

  reporterUserId         String? @map("reporter_user_id")
  reporterName           String? @map("reporter_name")
  reporterTelegramChatId String? @map("reporter_telegram_chat_id")
  reporter               User?   @relation("BugReporter", fields: [reporterUserId], references: [id])

  assigneeUserId String? @map("assignee_user_id")
  assignee       User?   @relation("BugAssignee", fields: [assigneeUserId], references: [id])

  notesInternal  String?   @map("notes_internal") @db.Text
  fixedCommitSha String?   @map("fixed_commit_sha")
  fixedAt        DateTime? @map("fixed_at")
  closedAt       DateTime? @map("closed_at")

  createdAt DateTime  @default(now()) @map("created_at")
  updatedAt DateTime  @updatedAt @map("updated_at")
  deletedAt DateTime? @map("deleted_at")

  @@index([status])
  @@index([severity])
  @@index([createdAt])
  @@index([assigneeUserId, status])
  @@index([reporterUserId])
  @@map("bug_reports")
}

// ══════════════════════════════════════════════════════════════════
// ANNOUNCEMENTS — Multi-channel user notifications (email + Telegram)
// ══════════════════════════════════════════════════════════════════

enum AnnouncementCategory {
  ONBOARDING
  SYSTEM_UPDATE
  MAINTENANCE
  FEATURE_RELEASE
  REMINDER
}

enum AnnouncementStatus {
  SUCCESS
  PARTIAL
  FAILED
  PENDING
}

model UserAnnouncement {
  id           Int                  @id @default(autoincrement())
  userId       String               @map("user_id")
  user         User                 @relation(fields: [userId], references: [id])
  category     AnnouncementCategory
  templateSlug String               @map("template_slug")
  subject      String
  emailSent    Boolean              @default(false) @map("email_sent")
  telegramSent Boolean              @default(false) @map("telegram_sent")
  status       AnnouncementStatus   @default(PENDING)
  errorDetails String?              @map("error_details") @db.Text
  metadata     Json?
  sentAt       DateTime             @default(now()) @map("sent_at")
  createdAt    DateTime             @default(now()) @map("created_at")

  @@index([userId])
  @@index([category])
  @@index([status])
  @@index([templateSlug])
  @@map("user_announcements")
}

// ══════════════════════════════════════════════════════════════════
// SYSTEM JOBS — Idempotent recurring job tracking
// ══════════════════════════════════════════════════════════════════

model SystemJob {
  id        Int       @id @default(autoincrement())
  jobName   String    @unique @map("job_name")
  lastRunAt DateTime? @map("last_run_at")
  nextRunAt DateTime? @map("next_run_at")
  isEnabled Boolean   @default(true) @map("is_enabled")
  metadata  Json?
  createdAt DateTime  @default(now()) @map("created_at")
  updatedAt DateTime  @updatedAt @map("updated_at")

  @@map("system_jobs")
}

// ─── Document Control (AXE 3) ──────────────────────────────────

enum DocType {
  UPD
  TORG12
  INVOICE_SF
  SCHET
  TN
}

enum ExpectedDocStatus {
  EXPECTED
  RECEIVED
  OVERDUE
  WAIVED
}

enum ControlStage {
  NOT_RECEIVED
  AT_WAREHOUSE
  AT_ACHETEUR
  DISCREPANCY
  AT_COMPTA
  REGISTERED
}

enum DiscrepancyKind {
  QUANTITY
  QUALITY
  PRICE
}

enum DiscrepancyStatus {
  NOTED
  CLAIM_DRAFTED
  CLAIM_SENT
  AWAITING_UKD
  UKD_RECEIVED
  UKD_ACCEPTED
  RESOLVED
  REJECTED
}

model ExpectedDocument {
  id              Int               @id @default(autoincrement())
  purchaseOrderId Int               @map("purchase_order_id")
  purchaseOrder   PurchaseOrder     @relation(fields: [purchaseOrderId], references: [id], onDelete: Cascade)
  docType         DocType           @map("doc_type")
  status          ExpectedDocStatus @default(EXPECTED)
  dueDate         DateTime?         @map("due_date")
  receivedAt      DateTime?         @map("received_at")
  inboundEmailId  Int?              @map("inbound_email_id")
  waivedReason    String?           @map("waived_reason")
  notifiedAt      DateTime?         @map("notified_at")
  alternativeGroup String?          @map("alternative_group")
  controlStage          ControlStage  @default(NOT_RECEIVED) @map("control_stage")
  controlStageEnteredAt DateTime?     @map("control_stage_entered_at")
  internalDueDate       DateTime?     @map("internal_due_date")
  internalStallNotifiedAt DateTime?   @map("internal_stall_notified_at")
  discrepancies         Discrepancy[]
  createdAt       DateTime          @default(now()) @map("created_at")
  updatedAt       DateTime          @updatedAt @map("updated_at")

  @@index([purchaseOrderId, status])
  @@index([status])
  @@index([controlStage])
  @@map("expected_documents")
}

model Discrepancy {
  id                  Int               @id @default(autoincrement())
  expectedDocumentId  Int               @map("expected_document_id")
  expectedDocument    ExpectedDocument  @relation(fields: [expectedDocumentId], references: [id], onDelete: Cascade)
  kind                DiscrepancyKind
  status              DiscrepancyStatus @default(NOTED)
  description         String
  noticedBy           String?           @map("noticed_by")
  claimSentAt         DateTime?         @map("claim_sent_at")
  ukdReceivedAt       DateTime?         @map("ukd_received_at")
  ukdAcceptedAt       DateTime?         @map("ukd_accepted_at")
  resolvedAt          DateTime?         @map("resolved_at")
  inboundUkdEmailId   Int?              @map("inbound_ukd_email_id")
  claimDraftText      String?           @map("claim_draft_text") @db.Text
  claimSentMessageId  String?           @map("claim_sent_message_id")
  claimUkdDueDate     DateTime?         @map("claim_ukd_due_date")
  createdAt           DateTime          @default(now()) @map("created_at")
  updatedAt           DateTime          @updatedAt @map("updated_at")

  @@index([expectedDocumentId])
  @@index([status])
  @@map("discrepancies")
}

// ─── Price Memory ──────────────────────────────────────────────

enum MatchStatus {
  UNMATCHED
  PROPOSED
  CONFIRMED
  REJECTED
}

model CanonicalItem {
  id             Int                        @id @default(autoincrement())
  canonicalLabel String                     @unique @map("canonical_label")
  family         String?
  unit           String?
  attributes     Json?
  embedding      Unsupported("vector(512)")?
  observations   PriceObservation[]
  createdAt      DateTime                   @default(now()) @map("created_at")
  updatedAt      DateTime                   @updatedAt @map("updated_at")

  @@index([family])
  @@map("canonical_items")
}

model PriceObservation {
  id              Int            @id @default(autoincrement())
  rawLabel        String         @map("raw_label")
  supplierId      Int?           @map("supplier_id")
  supplierName    String?        @map("supplier_name")
  unitPriceHt     Decimal        @map("unit_price_ht") @db.Decimal(12, 2)
  currency        String         @default("RUB")
  quantity        Decimal?       @db.Decimal(12, 4)
  unit            String?
  observedAt      DateTime       @map("observed_at")
  source          String
  sourceLineId    Int            @map("source_line_id")
  isPaid          Boolean        @default(false) @map("is_paid")
  poStatus        String?        @map("po_status")
  canonicalItemId Int?           @map("canonical_item_id")
  canonicalItem   CanonicalItem? @relation(fields: [canonicalItemId], references: [id])
  matchStatus     MatchStatus    @default(UNMATCHED) @map("match_status")
  matchScore      Float?         @map("match_score")
  matchMethod     String?        @map("match_method")
  createdAt       DateTime       @default(now()) @map("created_at")
  updatedAt       DateTime       @updatedAt @map("updated_at")

  @@unique([source, sourceLineId])
  @@index([supplierId])
  @@index([observedAt])
  @@index([matchStatus])
  @@index([canonicalItemId])
  @@map("price_observations")
}

// ─── Inbound Email Ingestion ───────────────────────────────────

model InboundEmail {
  id                       Int                        @id @default(autoincrement())
  mailbox                  String
  uid                      Int
  uidValidity              Int                        @default(0) @map("uid_validity")
  messageId                String?                    @map("message_id")
  inReplyTo                String?                    @map("in_reply_to")
  references               String?
  fromAddress              String                     @map("from_address")
  fromName                 String?                    @map("from_name")
  subject                  String?
  receivedAt               DateTime                   @map("received_at")
  bodyText                 String?                    @map("body_text")
  classification           String
  classificationMethod     String                     @map("classification_method")
  classificationConfidence Float?                     @map("classification_confidence")
  routingStatus            String                     @default("NEW") @map("routing_status")
  tenderDispatchId         Int?                       @map("tender_dispatch_id")
  tenderDispatch           TenderDispatch?            @relation(fields: [tenderDispatchId], references: [id])
  correlationStatus        String?                    @map("correlation_status")
  correlationCandidates    Json?                      @map("correlation_candidates")
  tenderStage              String?                    @map("tender_stage")
  responseType             String?                    @map("response_type")
  analysisResult           Json?                      @map("analysis_result")
  analysisMethod           String?                    @map("analysis_method")
  draftOfferId             Int?                       @map("draft_offer_id")
  draftStatus              String?                    @map("draft_status")
  notifiedAt               DateTime?                  @map("notified_at")
  correlatedPurchaseOrderId Int?                      @map("correlated_purchase_order_id")
  correlatedPurchaseOrder  PurchaseOrder?             @relation("InboundEmailPO", fields: [correlatedPurchaseOrderId], references: [id])
  detectedIntent           String?                    @map("detected_intent")
  attachments              InboundEmailAttachment[]
  createdAt                DateTime                   @default(now()) @map("created_at")
  updatedAt                DateTime                   @updatedAt @map("updated_at")

  @@unique([mailbox, uidValidity, uid])
  @@index([classification])
  @@index([routingStatus])
  @@index([tenderStage])
  @@map("inbound_emails")
}

model InboundEmailAttachment {
  id              Int          @id @default(autoincrement())
  inboundEmailId  Int          @map("inbound_email_id")
  inboundEmail    InboundEmail @relation(fields: [inboundEmailId], references: [id], onDelete: Cascade)
  filename        String
  mimeType        String       @map("mime_type")
  sizeBytes       Int          @map("size_bytes")
  storagePath     String       @map("storage_path")
  kindHint        String?      @map("kind_hint")
  createdAt       DateTime     @default(now()) @map("created_at")

  @@index([inboundEmailId])
  @@map("inbound_email_attachments")
}

// ─── Agent Август (M0A) ────────────────────────────────────────

enum AgentActionType {
  REMINDER_SENT
  ESCALATION_SENT
  REPORT_SENT
  COPILOT_RESPONSE
  KNOWLEDGE_INGESTED
  DRY_RUN
}

enum AgentActionStatus {
  PENDING
  EXECUTED
  FAILED
  SHADOWED
  THROTTLED
  KILLED
}

enum KnowledgeArticleStatus {
  DRAFT
  PUBLISHED
  ARCHIVED
}

model AgentAction {
  id     Int               @id @default(autoincrement())
  type   AgentActionType
  status AgentActionStatus @default(PENDING)

  targetUserId String?
  targetUser   User?   @relation("AgentActionsForUser", fields: [targetUserId], references: [id])

  relatedEntityType String?
  relatedEntityId   Int?

  channel String?
  subject String?
  body    String? @db.Text

  triggerJobName String?
  intent         String?
  errorMessage   String?

  createdAt  DateTime  @default(now())
  executedAt DateTime?

  auditLog   AgentAuditLog?
  engagement AgentEngagement?

  @@index([targetUserId])
  @@index([type, status])
  @@index([createdAt])
  @@map("agent_actions")
}

model AgentAuditLog {
  id            Int         @id @default(autoincrement())
  agentActionId Int         @unique
  agentAction   AgentAction @relation(fields: [agentActionId], references: [id], onDelete: Cascade)

  llmModel     String
  promptInput  String   @db.Text
  llmOutput    String   @db.Text
  inputTokens  Int?
  outputTokens Int?
  costUsd      Decimal? @db.Decimal(10, 6)

  retrievedChunkIds Int[] @default([])

  toolCalls Json?

  createdAt DateTime @default(now())

  @@map("agent_audit_logs")
}

model AgentEngagement {
  id            Int         @id @default(autoincrement())
  agentActionId Int         @unique
  agentAction   AgentAction @relation(fields: [agentActionId], references: [id], onDelete: Cascade)

  targetUserId      String
  targetUser        User   @relation("AgentEngagements", fields: [targetUserId], references: [id])
  relatedEntityType String
  relatedEntityId   Int

  firstReminderAt DateTime  @default(now())
  lastReminderAt  DateTime  @default(now())
  reminderCount   Int       @default(1)
  resolved        Boolean   @default(false)
  resolvedAt      DateTime?

  escalatedAt       DateTime?
  escalatedToUserId String?

  @@index([targetUserId, relatedEntityType, relatedEntityId])
  @@index([resolved])
  @@map("agent_engagements")
}

model AgentReport {
  id String @id @default(uuid())

  periodFrom DateTime
  periodTo   DateTime

  aggregatedData Json

  contentMarkdown String? @db.Text

  sentToUserIds String[]  @default([])
  sentAt        DateTime?

  modelUsed        String?
  costUsd          Decimal? @db.Decimal(10, 6)
  promptTokens     Int?
  completionTokens Int?

  status AgentReportStatus @default(DRAFT)

  generatedAt       DateTime @default(now())
  generatedByUserId String?

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@index([periodFrom, periodTo])
  @@index([status])
  @@index([generatedAt])
  @@map("agent_reports")
}

enum AgentReportStatus {
  DRAFT
  GENERATED
  SENT
  ARCHIVED
}

model KnowledgeArticle {
  id       Int                    @id @default(autoincrement())
  title    String
  content  String                 @db.Text
  tags     String[]               @default([])
  category String?
  status   KnowledgeArticleStatus @default(DRAFT)

  authorId String
  author   User   @relation("KnowledgeArticlesAuthored", fields: [authorId], references: [id])

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  chunks KnowledgeChunk[]

  @@index([status])
  @@index([category])
  @@map("knowledge_articles")
}

model KnowledgeChunk {
  id        Int              @id @default(autoincrement())
  articleId Int
  article   KnowledgeArticle @relation(fields: [articleId], references: [id], onDelete: Cascade)

  chunkIndex Int
  content    String @db.Text

  embedding  Unsupported("vector(512)")?
  contentTsv Unsupported("tsvector")?    @map("content_tsv")

  tokenCount Int?

  createdAt DateTime @default(now())

  @@unique([articleId, chunkIndex])
  @@index([articleId])
  @@map("knowledge_chunks")
}

// ══════════════════════════════════════════════════════════════════
// M3 — Copilote conversationnel Август
// ══════════════════════════════════════════════════════════════════

enum ConversationStatus {
  ACTIVE
  ARCHIVED
}

enum ConversationRole {
  USER
  ASSISTANT
  TOOL
}

enum PendingActionStatus {
  PROPOSED
  CONFIRMED
  REJECTED
  EXECUTED
  FAILED
}

model ConversationSession {
  id             String                @id @default(uuid())
  userId         String
  user           User                  @relation("ConversationSessions", fields: [userId], references: [id])
  title          String?
  status         ConversationStatus    @default(ACTIVE)
  createdAt      DateTime              @default(now())
  updatedAt      DateTime              @updatedAt
  lastMessageAt  DateTime              @default(now())
  messages       ConversationMessage[]
  pendingActions PendingAction[]

  @@index([userId, lastMessageAt])
  @@index([status])
  @@map("conversation_sessions")
}

model ConversationMessage {
  id           String              @id @default(uuid())
  sessionId    String
  session      ConversationSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)
  role         ConversationRole
  content      String              @db.Text
  toolCalls    Json?
  toolResults  Json?
  model        String?
  inputTokens  Int?
  outputTokens Int?
  createdAt    DateTime            @default(now())

  @@index([sessionId, createdAt])
  @@map("conversation_messages")
}

model PendingAction {
  id           String              @id @default(uuid())
  sessionId    String
  session      ConversationSession @relation(fields: [sessionId], references: [id], onDelete: Cascade)
  userId       String
  toolName     String
  toolInput    Json
  toolUseId    String
  status       PendingActionStatus @default(PROPOSED)
  summary      String?
  result       Json?
  errorMessage String?
  createdAt    DateTime            @default(now())
  decidedAt    DateTime?
  executedAt   DateTime?

  @@index([sessionId])
  @@index([userId, status])
  @@map("pending_actions")
}

// ══════════════════════════════════════════════════════════════════
// BLOC 1A — Engagement Layer (Refondation Option C)
// ══════════════════════════════════════════════════════════════════

// --- Enums Engagement Layer ---

enum TaskStatus {
  TODO
  IN_PROGRESS
  BLOCKED
  DONE
  CANCELLED
}

enum TaskPriority {
  LOW
  MEDIUM
  HIGH
  URGENT
}

enum TaskSource {
  MANUAL
  AUTO_RULE
  AGENT_AVGUST
  AGENT_SUBAGENT
  IMPORTED
}

enum DecisionStatus {
  PENDING
  DECIDED
  ESCALATED
  CANCELLED
}

enum DecisionPriority {
  LOW
  MEDIUM
  HIGH
  URGENT
}

// Q5 DECISIONS-LOG: OPEN retiré, uniquement BINARY + MULTI_CHOICE
enum DecisionKind {
  BINARY
  MULTI_CHOICE
}

enum DecisionSource {
  MANUAL
  AUTO_RULE
  AGENT_AVGUST
  AGENT_SUBAGENT
}

// SPEC-TRUD-2 — Barème commande (labor cost schedule)
enum LaborPayType {
  PIECE
  AREA
  HOURLY
}

enum WorkerCategory {
  SVARCSHIK
  SBORSHIK
  MALYAR
  SLESAR
  UNIVERSAL
}

enum LaborPriceSource {
  DEFAULT
  PAINT_RATE
  NODE_PRICE
  MANUAL
}

enum LaborSourceType {
  SMETA_LINE
  LABOR_NODE
  SPLIT
}

model LaborConfig {
  id                       Int       @id @default(autoincrement())
  defaultRatePercent       Decimal   @default(50) @map("default_rate_percent") @db.Decimal(5, 2)
  paintRatePerM2           Decimal   @default(65) @map("paint_rate_per_m2") @db.Decimal(12, 2)
  hourlyPatterns           String[]  @default([]) @map("hourly_patterns")
  aggregateExcludePatterns String[]  @default([]) @map("aggregate_exclude_patterns")
  updatedAt                DateTime  @updatedAt @map("updated_at")
  updatedById              String?   @map("updated_by_id")
  updatedBy                User?     @relation("LaborConfigUpdater", fields: [updatedById], references: [id])

  @@map("labor_configs")
}

model OrderLaborOperation {
  id                  Int                   @id @default(autoincrement())
  orderId             Int                   @map("order_id")
  order               Order                 @relation(fields: [orderId], references: [id], onDelete: Cascade)
  sourceType          LaborSourceType       @map("source_type")
  sourceSmetaLineId   Int?                  @map("source_smeta_line_id")
  sourceSmetaLine     SmetaLine?            @relation(fields: [sourceSmetaLineId], references: [id])
  sourceLaborNodeId   Int?                  @map("source_labor_node_id")
  sourceLaborNode     SmetaLaborNode?       @relation(fields: [sourceLaborNodeId], references: [id])
  parentOperationId   Int?                  @map("parent_operation_id")
  parentOperation     OrderLaborOperation?  @relation("OperationSplits", fields: [parentOperationId], references: [id])
  childOperations     OrderLaborOperation[] @relation("OperationSplits")
  description         String
  payType             LaborPayType          @map("pay_type")
  workerCategory      WorkerCategory        @default(UNIVERSAL) @map("worker_category")
  priceSource         LaborPriceSource      @map("price_source")
  smetaUnitPrice      Decimal?              @map("smeta_unit_price") @db.Decimal(12, 2)
  smetaTotalPrice     Decimal?              @map("smeta_total_price") @db.Decimal(12, 2)
  quantity            Decimal               @default(1) @db.Decimal(12, 4)
  unit                String?
  baremeUnitPrice     Decimal               @map("bareme_unit_price") @db.Decimal(12, 2)
  baremeTotalPrice    Decimal               @map("bareme_total_price") @db.Decimal(12, 2)
  configRatePercent   Decimal?              @map("config_rate_percent") @db.Decimal(5, 2)
  configPaintRate     Decimal?              @map("config_paint_rate") @db.Decimal(12, 2)
  position            Int                   @default(0)
  justification       String?
  needsReview         Boolean               @default(false) @map("needs_review")
  workLogs            WorkLog[]
  createdAt           DateTime              @default(now()) @map("created_at")
  updatedAt           DateTime              @updatedAt @map("updated_at")

  @@index([orderId])
  @@map("order_labor_operations")
}

enum DecisionLogEventType {
  CREATED
  REMINDED
  ESCALATED
  DECIDED
  REOPENED
  CANCELLED
}

enum ReminderStatus {
  SCHEDULED
  SENT
  ACKNOWLEDGED
  EXPIRED
  CANCELLED
}

enum ReminderSource {
  MANUAL
  AUTO_FROM_TASK
  AUTO_FROM_DECISION
  AUTO_RULE
  AGENT_AVGUST
}

enum NotificationChannel {
  ERP_IN_APP
  PWA_PUSH
  TELEGRAM
  EMAIL
}

enum ErpEntityType {
  ORDER
  PURCHASE_REQUIREMENT
  PURCHASE_ORDER
  TENDER
  BUG_REPORT
  CLIENT
  SUPPLIER
  SMETA
  DOCUMENT_FLOW
  USER
}

enum AutoRuleTriggerType {
  ENTITY_STATUS_CHANGE
  ENTITY_CREATED
  SCHEDULE_CRON
}

enum EngagementKind {
  TASK
  DECISION
}

enum UserMemoryCategory {
  PREFERENCE
  WORK_PATTERN
  CONTACT_RELATIONSHIP
  DECISION_HISTORY
  EXPERTISE_DOMAIN
  COMMUNICATION_STYLE
  TOOL_USAGE
  PROJECT_CONTEXT
  GOAL_OBJECTIVE
  CONSTRAINT
}

enum UserMemorySource {
  OBSERVED
  USER_STATED
  INFERRED
  CONFIGURED
}

enum AgendaView {
  DAY
  WEEK
  MONTH
}

enum DeliveryStatus {
  PENDING
  SENT
  ACKED
  FAILED
  EXPIRED
  AGGREGATED
}

// --- Models Engagement Layer ---

model Task {
  id          String       @id @default(uuid())
  title       String       @db.VarChar(200)
  description String?      @db.Text
  status      TaskStatus   @default(TODO)
  priority    TaskPriority @default(MEDIUM)
  dueDate     DateTime?

  createdById String
  createdBy   User    @relation("TaskCreatedBy", fields: [createdById], references: [id])
  assigneeId  String?
  assignee    User?   @relation("TaskAssignee", fields: [assigneeId], references: [id])

  source     TaskSource          @default(MANUAL)
  autoRuleId String?
  autoRule   EngagementAutoRule? @relation("TaskFromRule", fields: [autoRuleId], references: [id])

  estimatedMinutes Int?
  actualMinutes    Int?

  isPrivate Boolean @default(false)

  createdAt   DateTime  @default(now())
  updatedAt   DateTime  @updatedAt
  startedAt   DateTime?
  completedAt DateTime?

  dependencies TaskDependency[] @relation("TaskDependencies")
  dependents   TaskDependency[] @relation("TaskDependents")
  entityLinks  TaskEntityLink[]
  reminders    Reminder[]       @relation("RemindersForTask")

  @@index([assigneeId, status])
  @@index([createdById])
  @@index([dueDate])
  @@index([status, priority])
  @@index([source, autoRuleId])
  @@map("tasks")
}

model TaskDependency {
  id              String   @id @default(uuid())
  taskId          String
  task            Task     @relation("TaskDependencies", fields: [taskId], references: [id], onDelete: Cascade)
  dependsOnTaskId String
  dependsOnTask   Task     @relation("TaskDependents", fields: [dependsOnTaskId], references: [id], onDelete: Cascade)
  createdAt       DateTime @default(now())

  @@unique([taskId, dependsOnTaskId])
  @@index([dependsOnTaskId])
  @@map("task_dependencies")
}

model TaskEntityLink {
  id         String        @id @default(uuid())
  taskId     String
  task       Task          @relation(fields: [taskId], references: [id], onDelete: Cascade)
  entityType ErpEntityType
  entityId   String
  createdAt  DateTime      @default(now())

  @@unique([taskId, entityType, entityId])
  @@index([entityType, entityId])
  @@map("task_entity_links")
}

model Decision {
  id          String           @id @default(uuid())
  title       String           @db.VarChar(200)
  description String           @db.Text
  status      DecisionStatus   @default(PENDING)
  priority    DecisionPriority @default(MEDIUM)

  kind    DecisionKind
  options Json?

  deciderId          String
  decider            User    @relation("DecisionDecider", fields: [deciderId], references: [id])
  escalateToId       String?
  escalateTo         User?   @relation("DecisionEscalateTo", fields: [escalateToId], references: [id])
  escalateAfterHours Int?

  createdById String
  createdBy   User                @relation("DecisionCreatedBy", fields: [createdById], references: [id])
  source      DecisionSource      @default(MANUAL)
  autoRuleId  String?
  autoRule    EngagementAutoRule? @relation("DecisionFromRule", fields: [autoRuleId], references: [id])

  decisionDeadline DateTime
  decidedAt        DateTime?
  decidedById      String?
  decidedBy        User?     @relation("DecisionDecidedBy", fields: [decidedById], references: [id])
  decidedOptionKey String?
  decidedText      String?   @db.Text

  escalatedAt DateTime?

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  entityLinks DecisionEntityLink[]
  reminders   Reminder[]           @relation("RemindersForDecision")
  log         DecisionLog[]

  @@index([deciderId, status])
  @@index([escalateToId, escalatedAt])
  @@index([decisionDeadline])
  @@index([status, priority])
  @@map("decisions")
}

model DecisionLog {
  id          String               @id @default(uuid())
  decisionId  String
  decision    Decision             @relation(fields: [decisionId], references: [id], onDelete: Cascade)
  eventType   DecisionLogEventType
  actorUserId String?
  actor       User?                @relation("DecisionLogActor", fields: [actorUserId], references: [id])
  payload     Json?
  createdAt   DateTime             @default(now())

  @@index([decisionId, createdAt])
  @@map("decision_logs")
}

model DecisionEntityLink {
  id         String        @id @default(uuid())
  decisionId String
  decision   Decision      @relation(fields: [decisionId], references: [id], onDelete: Cascade)
  entityType ErpEntityType
  entityId   String
  createdAt  DateTime      @default(now())

  @@unique([decisionId, entityType, entityId])
  @@index([entityType, entityId])
  @@map("decision_entity_links")
}

model Reminder {
  id         String    @id @default(uuid())
  taskId     String?
  task       Task?     @relation("RemindersForTask", fields: [taskId], references: [id], onDelete: Cascade)
  decisionId String?
  decision   Decision? @relation("RemindersForDecision", fields: [decisionId], references: [id], onDelete: Cascade)

  scheduledFor DateTime
  status       ReminderStatus @default(SCHEDULED)

  preferredChannel NotificationChannel?
  customMessage    String?              @db.Text

  targetUserId String
  target       User   @relation("ReminderTarget", fields: [targetUserId], references: [id])

  createdById String?
  source      ReminderSource @default(MANUAL)

  sentAt         DateTime?
  acknowledgedAt DateTime?
  expiredAt      DateTime?
  failureReason  String?

  deliveries NotificationDelivery[] @relation("DeliveriesForReminder")

  createdAt DateTime @default(now())

  @@index([targetUserId, status, scheduledFor])
  @@index([scheduledFor, status])
  @@map("reminders")
}

model EngagementAutoRule {
  id          String  @id @default(uuid())
  name        String  @db.VarChar(100)
  description String? @db.Text
  enabled     Boolean @default(true)

  triggerType   AutoRuleTriggerType
  triggerConfig Json

  engagementKind     EngagementKind
  engagementTemplate Json

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  generatedTasks     Task[]     @relation("TaskFromRule")
  generatedDecisions Decision[] @relation("DecisionFromRule")

  @@index([triggerType, enabled])
  @@index([engagementKind])
  @@map("engagement_auto_rules")
}

model UserMemory {
  id     String @id @default(uuid())
  userId String
  user   User   @relation("UserMemories", fields: [userId], references: [id], onDelete: Cascade)

  category  UserMemoryCategory
  factKey   String             @db.VarChar(100)
  factValue Json

  confidence    Float            @default(0.5)
  source        UserMemorySource
  evidenceCount Int              @default(1)

  firstSeenAt    DateTime  @default(now())
  lastSeenAt     DateTime  @default(now())
  lastReinforced DateTime  @default(now())
  expiresAt      DateTime?

  agentSource    String?
  conversationId String?

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@unique([userId, category, factKey])
  @@index([userId, category])
  @@index([userId, lastReinforced])
  @@index([expiresAt])
  @@map("user_memories")
}

model AgendaCalendarConfig {
  id     String @id @default(uuid())
  userId String @unique
  user   User   @relation("AgendaCalendarConfig", fields: [userId], references: [id], onDelete: Cascade)

  defaultView      AgendaView @default(WEEK)
  weekStartsOn     Int        @default(1)
  workingDays      Int[]      @default([1, 2, 3, 4, 5])
  workingHourStart Int        @default(8)
  workingHourEnd   Int        @default(18)

  showTasks        Boolean  @default(true)
  showDecisions    Boolean  @default(true)
  showReminders    Boolean  @default(true)
  showErpEvents    Boolean  @default(true)
  hiddenCategories String[] @default([])

  showCompletedDays Int @default(7)

  createdAt DateTime @default(now())
  updatedAt DateTime @updatedAt

  @@map("agenda_calendar_configs")
}

model ChatPreference {
  id              String  @id @default(uuid())
  userId          String  @unique
  user            User    @relation("ChatPreferences", fields: [userId], references: [id], onDelete: Cascade)
  directExecution Boolean @default(false)
  createdAt       DateTime @default(now())
  updatedAt       DateTime @updatedAt
  @@map("chat_preferences")
}

model NotificationDelivery {
  id String @id @default(uuid())

  reminderId     String?
  reminder       Reminder? @relation("DeliveriesForReminder", fields: [reminderId], references: [id], onDelete: Cascade)
  notificationId String?
  agentActionId  String?

  sourceType String?
  sourceId   String?

  targetUserId String
  target       User                @relation("NotificationDeliveries", fields: [targetUserId], references: [id])
  channel      NotificationChannel

  payload  Json
  priority String @default("MEDIUM")

  enableEscalation Boolean @default(false) @map("enable_escalation")

  status         DeliveryStatus @default(PENDING)
  sentAt         DateTime?
  acknowledgedAt DateTime?
  failedAt       DateTime?
  failureReason  String?
  scheduledFor   DateTime?      @map("scheduled_for")
  externalId     String?        @map("external_id")
  ackToken       String?        @map("ack_token")

  parentDeliveryId       String?
  parentDelivery         NotificationDelivery?  @relation("DeliveryEscalation", fields: [parentDeliveryId], references: [id])
  childDeliveries        NotificationDelivery[] @relation("DeliveryEscalation")
  conversationSessionId  String?

  createdAt DateTime @default(now())

  @@index([targetUserId, status, channel])
  @@index([reminderId])
  @@index([notificationId])
  @@index([agentActionId])
  @@index([createdAt])
  @@index([sourceType, sourceId])
  @@index([status, enableEscalation])
  @@index([ackToken])
  @@map("notification_deliveries")
}

enum LessonStatus {
  PROPOSED
  CONFIRMED
  PROMOTED
  PERSONAL
  REJECTED
}

model AgentLesson {
  id              String       @id @default(uuid())
  status          LessonStatus @default(PROPOSED)
  eventType       String
  entityType      String
  entityId        Int
  actorUserId     String
  actor           User         @relation("LessonActor", fields: [actorUserId], references: [id])
  observedAt      DateTime     @default(now())
  lessonText      String       @db.Text
  conditions      String?      @db.Text
  surpriseReason  String?      @db.Text
  actorResponse   String?      @db.Text
  confirmedAt     DateTime?
  promotedById    String?
  promotedBy      User?        @relation("LessonPromoter", fields: [promotedById], references: [id])
  promotedAt      DateTime?
  rejectedReason  String?
  kbArticleId     Int?
  createdAt       DateTime     @default(now())
  updatedAt       DateTime     @updatedAt
  @@index([actorUserId])
  @@index([status])
  @@index([eventType, entityType])
  @@map("agent_lessons")
}

enum ActionValueClass {
  FORTE
  MOYENNE
  FAIBLE
}

model ActionCatalog {
  id          String          @id @default(uuid())
  actionType  String          @unique
  label       String
  module      String
  level       Int             @default(0)
  valueClass  ActionValueClass @default(FAIBLE)
  isAiCapable Boolean         @default(false)
  createdAt   DateTime        @default(now())
  updatedAt   DateTime        @updatedAt
  @@map("action_catalog")
}

enum DetectorRegister {
  PLANCHER
  ANOMALIE
  IMPORTANT
  BRUIT_DE_FOND
}

model DetectorConfig {
  id            String           @id @default(uuid())
  detectorId    String           @unique
  register      DetectorRegister @default(IMPORTANT)
  thresholdDays Int              @default(2)
  coupable      Boolean          @default(true)
  isFixed       Boolean          @default(false)
  createdAt     DateTime         @default(now())
  updatedAt     DateTime         @updatedAt
  @@map("detector_configs")
}

enum SilenceMode {
  NONE
  CALM
  TOTAL
}

model AugustSilenceState {
  id        String      @id @default(uuid())
  userId    String      @unique
  user      User        @relation("AugustSilence", fields: [userId], references: [id], onDelete: Cascade)
  mode      SilenceMode @default(NONE)
  expiresAt DateTime?
  activatedAt DateTime?
  createdAt DateTime    @default(now())
  updatedAt DateTime    @updatedAt
  @@map("august_silence_states")
}

model PushSubscription {
  id     String @id @default(uuid())
  userId String

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

  endpoint String @db.Text
  p256dh   String @db.VarChar(500)
  auth     String @db.VarChar(200)

  userAgent String? @db.VarChar(500) @map("user_agent")

  failureCount Int      @default(0) @map("failure_count")
  lastUsedAt   DateTime? @map("last_used_at")

  createdAt DateTime @default(now())
  expiresAt DateTime? @map("expires_at")

  @@unique([userId, endpoint])
  @@index([userId])
  @@map("push_subscriptions")
}

// SPEC-TRUD-3: Décompte travail ouvrier
enum WorkLogStatus {
  PENDING
  VERIFIED
  REJECTED
}

model Worker {
  id        Int            @id @default(autoincrement())
  name      String
  nameRu    String         @map("name_ru")
  category  WorkerCategory @default(UNIVERSAL)
  active    Boolean        @default(true)
  phone     String?
  workLogs  WorkLog[]
  createdAt DateTime       @default(now()) @map("created_at")
  updatedAt DateTime       @updatedAt @map("updated_at")

  @@map("workers")
}

model WorkLog {
  id              Int                  @id @default(autoincrement())
  orderId         Int                  @map("order_id")
  order           Order                @relation(fields: [orderId], references: [id], onDelete: Cascade)
  operationId     Int                  @map("operation_id")
  operation       OrderLaborOperation  @relation(fields: [operationId], references: [id], onDelete: Cascade)
  workerId        Int                  @map("worker_id")
  worker          Worker               @relation(fields: [workerId], references: [id])
  workDate        DateTime             @map("work_date") @db.Date
  quantityDone    Decimal              @map("quantity_done") @db.Decimal(12, 4)
  costAmount      Decimal              @map("cost_amount") @db.Decimal(12, 2)
  status          WorkLogStatus        @default(PENDING)
  verifiedById    String?              @map("verified_by_id")
  verifiedBy      User?                @relation("WorkLogVerifier", fields: [verifiedById], references: [id])
  verifiedAt      DateTime?            @map("verified_at")
  rejectionReason      String?              @map("rejection_reason")
  excessJustification  String?              @map("excess_justification")
  createdById          String?              @map("created_by_id")
  createdBy       User?                @relation("WorkLogCreator", fields: [createdById], references: [id])
  notes           String?
  createdAt       DateTime             @default(now()) @map("created_at")
  updatedAt       DateTime             @updatedAt @map("updated_at")

  @@index([orderId])
  @@index([operationId])
  @@index([workerId])
  @@index([workDate])
  @@map("work_logs")
}